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Publications

  1. Milan Babu Poudel, S. Vijayapradeep, Karthikeyan Sekar, Jong Seok Kim, Jin Yoo Dong. "Pyridinic-N exclusively enriched CNT encapsulated NiFe interfacial alloy nanoparticles on knitted carbon fiber cloth for bifunctional oxygen catalysts and biaxially flexible zinc-air batteries." Journal of Material Chemistry A, 2024 ( Impact factor: 11.9)  https://doi.org/10.1039/D3TA07609A

  2. Gayathri Chellasami, Erumalai Varathan, Karthikeyan Sekar, Sada Venkateswarlu, Saravanan Govindaraju, Kyusik Yun. "Single-atom catalysts for biosensing: Progress in theoretical and mechanistic understanding." Coordination Chemistry Reviews, Volume 502, 1 March 2024, 215606 (Impact Factor: 20.6)  https://doi.org/10.1016/j.ccr.2023.215606

  3. Nithish Agamendran, Maseed Uddin, Karthikeyan Sekar* Manova Santhosh Yesupatham, Mariyappan Shanmugam, Ashil Augustin, Tanay Kundu, Ramani Kandasami, Keiko Sasaki."Nanoarchitectonics Design Strategy of Metal–Organic Framework and Bio-Metal–Organic Framework Composites for Advanced Wastewater Treatment through Adsorption."  Langmuir 2024, 40, 7, 3320–3342 (Impact factor:3.9)  https://doi.org/10.1021/acs.langmuir.3c02949 

  4. Manova Santhosh Yesupatham, Brahmari Honnappa, Karthikeyan Sekar, Nithish Agamendran, Sai Yeswanth kumar,Gayathri Chellasamy, Saravanan Govindaraju, Kyusik Yun, N. Clament Sagaya Selvam,Gayathri Chellasamy, Saravanan Govindaraju, Kyusik Yun, N. Clament Sagaya Selvam, Wei Li. "Recent Developments in Copper-Based Catalysts for Enhanced Electrochemical CO2 Reduction." Advance Sustainable Systems, (Impact Factor: 7.1   )           https://doi.org/10.1002/adsu.202300549

  5. Brahmari Honnappa, T.R. Naveen Kumar, Prince J.J.Sagayaraj, Karthikeyan Sekar*, Sulakshana Shenoy,  Chitiphon Chuaicham, Manova Santhosh Yesupatham, Anantharaj Sengeni, Bernaurdshaw Nepolian, Keiko Sasaki. "Unveiling the bifunctional role of morphological differences of self-supported Cu(OH)2 in electrocatalysis." Journal of Materials Chemistry A, 2023,11, 25854-25858 (Impact factor: 11.9)                             https://doi.org/10.1039/D3TA05471C

  6. Sulakshana Shenoy, Chitiphon Chuaicham, Karthikeyan Sekar*, Mariyappan Shanmugam, Takamasa Okumura, Umamahesh Balijapalli, Wei li, Vellaichamy Balakumar, Keiko Sasaki. "Tailoring Interfacial Physicochemical Properties in Cu2O-TiO2@rGO Heterojunction: Insights from EXAFS and Electron Trap Distribution Analysis." ACS Appl. Mater. Interfaces 2023, 15, 46, 54105–54118 ( Impact Factor: 9.5)    https://doi.org/10.1021/acsami.3c12130

  7. Mariyappan Shanmugam, Nithish Agamengran, Karthikeyan Sekar*, Thillai Sivakumar Natarajan. "Metal–organic frameworks (MOFs) for energy production and gaseous fuel and electrochemical energy storage applications." Physical Chemistry Chemical Physics, 2023,25, 30116-30144 (Impact Factor: 3.3)  https://doi.org/10.1039/D3CP04297A

  8. Sulakshana Shenoy, Chitiphon Chuaicham, Karthikeyan Sekar*, Keiko Sasaki, Sungkyun Park, Muthuchamy Nallal, Kang Hyun Park. "Nitridation-free preparation of bimetallic oxide-nitride bifunctional electrocatalysts for overall water splitting." Chemical Communications, 2023,59, 12451-12454 (Impact Factor: 4.9)  https://doi.org/10.1039/D3CC03452F

  9. Gayathri Chellasamy, Shiva Kumar Arumugasamy, Karthikeyan Sekar, Myeong Jin Nam, Sada Venkateswarlu, Elumalai Varathan, Kamaraj Manokaran, Min - Jae Choi, Saravanan Govindaraju, Kyusik Yun. " Experimental and simulation studies of bioinspired Au-enhanced copper single atom catalysts towards real-time expeditious dopamine sensing on human neuronal cell." Chemical Engineering Journal, Volume 471, 1 September 2023, 144842 (Impact factor: 15.1)                                                                                                              https://doi.org/10.1016/j.cej.2023.144842

  10. Boopathy Ramasamy, Karthikeyan Sekar*. "Editorial: Special Issue on Advanced Functional Materials for Photo/Electro-Catalysts for Environmental and Energy Applications." Catalysts 2023, 13(8), 1208 (Impact factor: 3.9)                                                                                                                           https://doi.org/10.3390/catal13081208

  11. Sulakshana Shenoy, Chitiphon Chuaicham, Karthikeyan Sekar,  Keiko Sasaki. "Atomic-level investigation on significance of photoreduced Pt nanoparticles over g-C3N4/bimetallic oxide composites." ChemSusChem, Volume 16, Oct 20, 2023, e202300478 (Impact factor: 8.4  )                                                      https://doi.org/10.1002/cssc.202300478

  12. Manova Santhosh Yesupatham, Ashil Augustin, Karthikeyan Sekar*, Nithish Agamendran, Brahmari Honnappa, Mariyappan Shanmugam, Prince J.J.Sagayaraj, G. Thennarasu, N. Clament Sagaya Selvam. "Photocatalytic seawater splitting for hydrogen fuel production: impact of seawater components and accelerating reagents on the overall performance." Sustainable Energy and Fuels, 2023,7, 4727-4757 (Impact factor: 5.6)  https://doi.org/10.1039/D3SE00810J

  13. Sengeni Anantharaj, Prince J.J. Sagayaraj, Karthikeyan Sekar,  Manova Santhosh Yesupatham, Roshini Arulraj, Karthik Easwaran, Suguru Noda. "The reference electrode dilemma in energy conversion electrocatalysis: “right vs. okay vs. wrong”." Journal of Materials Chemistry A, 2023,11, 17699-17709 (Impact factor: 11.9)    https://doi.org/10.1039/D3TA03145D

  14. Chitiphon Chuaicham, Sulakshana Shenoy, Karthikeyan Sekar, Jirawat Trakulmututa, Vellaichamy Balakumar, Phatchada Santawaja, Shinji Kudo, Keiko Sasaki. "Preparation of Iron Oxalate from Iron Ore and Its Application in Photocatalytic Rhodamine B Degradation." Seperations, 2023, 10(7), 378 (Impact factor: 2.6)  https://doi.org/10.3390/separations10070378

  15. Sulakshana Shenoy, Mohsen M. Farahat, Chitiphon Chuaicham, Karthikeyan Sekar,  Boopathy Ramasamy, Keiko Sasaki. "Mixed-Phase Fe2O3 Derived from Natural Hematite Ores/C3N4 Z-Scheme Photocatalyst for Ofloxacin Removal." Catalysts, 2023, 13(5), 792 (Impact factor: 3.9)                                  https://doi.org/10.3390/catal13050792

  16. Chitiphon Chuaicham, Intan Nurul Rizki, Karthikeyan Sekar, Sulakshana Shenoy, Assadawoot Srikhaow, Jirawat Trakulmututa, Keiko Sasaki. "Bio-reduced Ag nanoparticle decorated on ZnO for enhancement of photocatalytic reduction of hexavalent chromium and photocatalytic degradation of rhodamine B." Journal of Alloys and Compounds, Volume 939, 5 April 2023, 168797 ( Impact factor: 6.2)        https://doi.org/10.1016/j.jallcom.2023.168797

  17. Chitiphon Chuaicham, Yuto Noguchi, Sulakshana Shenoy, Karthikeyan Sekar,  Kaiqian Shu, Jirawat Trakulmututa, Assadawoot Srikhaow, Keiko Sasaki. "Simultaneous Photocatalytic Sugar Conversion and Hydrogen Production Using Pd Nanoparticles Decorated on Iron-Doped Hydroxyapatite." Catalysts, 2023, 13(4), 675 (Impact factor: 3.9)   https://doi.org/10.3390/catal13040675

  18. Mani Preeyanghaa, Chitiphon Chuaicham, Karthikeyan Sekar*, Sulakshana Shenoy, Bernaurdshaw Neppolian, Keiko Sasaki. "All-alike hollow nanotubes of g-C3N4 converting photons into fuel by splitting water." Chemical Communications, 2023,59, 5399-5402 (Impact factor: 4.9)                                https://doi.org/10.1039/D3CC01028G

  19. Mani Preeyanghaa, Chitiphon Chuaicham, Sulakshana Shenoy, Karthikeyan Sekar*, Balakumar Vellaichamy, Wei Li, Kamaraj Manokaran, Elumalai Varathan, Bernaurdshaw Neppolian, Bunsho Ohtani, Keiko Sasaki. "Unveiling the influence of Fe2O3 nanoparticles on CuxO–TiO2(B) nanofibers for dual Z-scheme electron transfer visible light photocatalysts: investigation on local atomic structures and electronic properties." Environmental Science: Nano, 2023,10, 1268-1283 (Impact factor: 7.3)                                                      https://doi.org/10.1039/D3EN00038A

  20. Chitiphon Chuaicham, Jirawat Trakulmututa, Kaiqian Shu, Karthikeyan Sekar, Sulakshana Shenoy, Assadawoot Srikhaow, Li Zhang, Sathya Mohan, Keiko Sasaki. "Recent Clay-Based Photocatalysts for Wastewater Treatment." Seperations, 2023, 10(2), 77 ( Impact factor: 2.6)                                        https://doi.org/10.3390/separations10020077

  21. Poonkuzhali Kulasekaran, Siva Moorthy, Paradesi Deivanayagam, Karthikeyan Sekar, Hemalatha Pushparaj. "Sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene/sulfonated poly(ether sulfone) and hexagonal boron nitride electrolyte membrane for fuel cell applications." Soft Matter, 2022,18, 8952-8960 (Impact factor: 3.4)                                                                                                                    https://doi.org/10.1039/D2SM01123A

  22. Mariyappan Shanmugam, Ashil Augustin, Sathya Mohan, Karthikeyan Sekar, Brahmari Honnappa, Chitiphon Chuaicham,  Saravanan Rajendran, Tuan K.A. Hoang, Keiko Sasaki. "Conducting polymeric nanocomposites: A review in solar fuel applications." Fuel, Volume 325, 1 October 2022, 124899 (Impact factor: 7.4)  https://doi.org/10.1016/j.fuel.2022.124899

  23. Brahmari Honnappa, Sathya Mohan, Mariyappan Shanmugam, Karthikeyan Sekar*,  Ashil Augustin, Prince J.J.Sagayaraj, Chitiphon Chuaicham, Saravanan Rajendran, Tuan K.A. Hoang, Keiko Sasaki. "Transition metal quantum dots for the electrocatalytic hydrogen evolution reaction: recent progresses and challenges." Energy Advances, 2022,1, 738-760 (Impact Factor;  )                                                        https://doi.org/10.1039/D2YA00181K

  24. Li Zhang, Chitiphon Chuaicham, Vellaichamy Balakumar, Karthikeyan Sekar, Bunsho Ohtani, Keiko Sasaki. "Determination of the roles of FeIII in the interface between titanium dioxide and montmorillonite in FeIII-doped montmorillonite/titanium dioxide composites as photocatalysts." Applied Clay Science, Volume 227, 15 September 2022, 106577 ( Impact Factor: 5.6)                                                                 https://doi.org/10.1016/j.clay.2022.106577

  25. Chitiphon Chuaicham, Karthikeyan Sekar,  Vellaichamy Balakumar, Junya Uchida, Takumi Katsurao, Hiroshi Sakabe, Bunsho Ohtani, Keiko Sasaki. "Efficient photocatalytic degradation of emerging ciprofloxacin under visible light irradiation using BiOBr/carbon quantum dot/saponite composite." Environmental Research, Volume 212, Part E, September 2022, 113635 (Impact factor: 8.3)                                              https://doi.org/10.1016/j.envres.2022.113635

  26. ​Chitiphon Chuaicham, Karthikeyan Sekar, Vellaichamy Balakumar, Li Zhang, Jirawat Trakulmututa, Pinit Kidkhunthod, Siwaporn Meejoo Smith, Keiko Sasaki. "Enhanced photocatalytic reduction of hexavalent chromium ions over Zn-bearing in CuZn hydroxy double salts: Insight into the structural investigation using extended X-ray absorption fine structure." Colloides and Surfaces A: Physicochemical and Engineering Aspects, Volue 645, 20 July 2022, 128893 ( Impact Factor: 5.2)                                                            https://doi.org/10.1016/j.colsurfa.2022.128893

  27. Surendar Balu, Chitiphon Chuaicham, Vellaichamy Balakumar, Karthikeyan Sekar, Saravanan Rajendran, Keiko Sasaki, Arthanareeswari Maruthapillai. "Recent development on core-shell photo(electro)catalysts for elimination of organic compounds from pharmaceutical wastewater." Chemosphere, Volume 298, July 2022, 134311 (Impact factor: 8.8)                                                                                                          https://doi.org/10.1016/j.chemosphere.2022.134311

  28. Barlina Maria Mahimai, Gandhimathi Sivasubramanian,  Karthikeyan Sekar, Dinakaran Kannaiyan, Paradesi Deivanayagam. "Sulfonated poly(ether ether ketone): efficient ion-exchange polymer electrolytes for fuel cell applications–a versatile review." Materials Advances, 2022,3, 6085-6095 (Impact factor: 5.0)  https://doi.org/10.1039/D2MA00562J

  29. Chitiphon Chuaicham, Karthikeyan Sekar, Vellaichamy Balakumar,  Yanisa Mittraphab, Kuniyoshi Shimizu, Bunsho Ohtani, Keiko Sasaki. "Fabrication of graphitic carbon nitride/ZnTi-mixed metal oxide heterostructure: Robust photocatalytic decomposition of ciprofloxacin." Journal of Alloys and Compounds, Volume 906, 15 June 2022, 164294 ( Impact factor: 6.2)                                                                          https://doi.org/10.1016/j.jallcom.2022.164294

  30. Sathya Mohan, Brahmari Honnappa, Ashil Augustin, Karthikeyan Sekar*,  Mariyappan Shanmugam, Chitiphon Chuaicham, Keiko Sasaki, Boopathy Ramasami. "A Critical Study of Cu2O: Synthesis and Its Application in CO2 Reduction by Photochemical and Electrochemical Approaches." Catalysts, 2022, 12(4), 445 ( Impact factor: 3.9)        https://doi.org/10.3390/catal12040445

  31. Mariyappan Shanmugam, Chitiphon Chuaicham, Karthikeyan Sekar*, Ashil Augustin, Keiko Sasaki, Prince J.J.Sagayaraj. "Upcycling hazardous metals and PET waste-derived metal–organic frameworks: a review on recent progresses and prospects." New Journal of Chemistry, 2022,46, 15776-15794 (Impact Factor: 3.3)    https://doi.org/10.1039/D2NJ02481K

  32. Kassam Ahmed, YuyinWang, Karthikeyan Sekar*, Yang Bai, Wei Li. "A carbon nanowire-promoted Cu2O/TiO2 nanocomposite for enhanced photoelectrochemical performance. "New Journal of Chemistry,  2022,46, 15495-15503 (Impact factor: 3.3)                                                                                         https://doi.org/10.1039/D2NJ03116G

  33. Ashil Augustin, Chitiphon Chuaicham, Karthikeyan Sekar*, Mariyappan Shanmugam, Balakumar Vellaichamy, Saravanan Rajendran, Tuan K.A. Hoang, Keiko Sasaki. "Recent development of organic–inorganic hybrid photocatalysts for biomass conversion into hydrogen production." Nanoscale Advances, 2022, 4, 2561-2582 (Impact factor: 4.7)                                                                                                                    https://doi.org/10.1039/D2NA00119E

  34. Vellaichamy Balakumar, Manivannan Ramalingam, Karthikeyan Sekar, Chitiphon Chuaicham, Keiko Sasaki. "Fabrication and characterization of carbon quantum dots decorated hollow porous graphitic carbon nitride through polyaniline for photocatalysis." Chemical Engineering Journal, Volume 426, 15 December 2021, 131739(Impact factor: 15.1)                                                                                                                https://doi.org/10.1016/j.cej.2021.131739

  35. Chitiphon Chuaicham, Karthikeyan Sekar,  Yihuang Xiong, Vellaichamy Balakumar, Yanisa Mittraphab, Kuniyoshi Shimizu, Bunsho Ohtani, Iamaila Dabo, Keiko Sasaki. "Single-step synthesis of oxygen-doped hollow porous graphitic carbon nitride for photocatalytic ciprofloxacin decomposition." Chemical Engineering Journal, Volume 425, 1 December 2021, 130502(Impact factor: 15.1).                                                   https://doi.org/10.1016/j.cej.2021.130502                                                                                                       

  36. Sekar Karthikeyan*, Chitiphon Chuaicham, Balakumar Vellaichamy, Wei Li, Wei Zhuang, Xiaohua Lu, Bunsho Ohtani, and Keiko Sasaki. "Cubic Cu2O nanoparticles decorated on TiO2 nanofiber heterostructure as an excellent synergistic photocatalyst for H2 production and sulfamethoxazole degradation." Applied Catalysis B: Environmental Volume 294, October 2021, 120221(Impact factor: 19.503).                                                                                        https://doi.org/10.1016/j.apcatb.2021.120221

  37. Sekar Karthikeyan*, Chitiphon Chuaicham, Umamahesh Balijapalli, Wei Li, Karen Wilson, Adam F. Lee, Keiko Sasaki, Surfactant- and template-free hydrothermal assembly of Cu2O visible light photocatalysts for trimethoprim degradation, Applied Catalysis B: Environmental, Volume 284, 5 May 2021, 119741 (Impact factor: 19.503) https://doi.org/10.1016/j.apcatb.2020.119741

  38. Sekar Karthikeyan*, A. Kassam, Y. Bai, B. Coulson, R. E. Douthwaite, A.F. Lee, K. Sasaki, W. Li, Hierarchical bismuth vanadate/reduced graphene oxide composite photocatalyst for hydrogen evolution and bisphenol A degradation, Applied Materials Today, Volume 22, March 2021, 100963 (Impact factor: 10.041)                    https://doi.org/10.1016/j.apmt.2021.100963                                  

  39. Sekar Karthikeyan*, Kassam Ahmed, Amin Osatiashtiani, Adam F. Lee, Karen Wilson, Keiko Sasaki,Ben Coulson, Will Swansborough-Aston, Richard E. Douthwaite, and Wei Li, Pompon Dahlia-like Cu2O/rGO nanostructures for visible light photocatalytic H2 production and 4-chlorophenol degradation, ChemCatChem, 2020, 12, 1699 – 1709 (Impact factor: 5.686)                                                                                                                                    https://doi.org/10.1002/cctc.201902048                                                                                                                         

  40. S. Karthikeyan, C. Chuaicham, R Pawar, K. Sasaki, Wei Li, A.F. Lee, Karen Wilson, Template free mild hydrothermal synthesis of core-shell Cu2O(Cu)@CuO visible light photocatalysts for N-acetyl-para-aminophenol degradation, Journal of Material Chemistry A, 2019,7, 20767-20777 (Impact factor: 12.732)                   https://doi.org/10.1039/C9TA07009E

  41. S. Karthikeyan*, S. Kumar, Lee J. Durndell, M.A. Isaacs, C.M.A. Parlett, Ben Coulson, Richard E. Douthwaite, K. Wilson and Adam F. Lee, Size-dependent visible light photocatalytic activity of Cu2O nanocubes, ChemCatChem, 53, 1–11, 2018 (Impact factor: 5.686)                                                                                                           https://doi.org/10.1002/cctc.201800439                                                                                                                          

  42. ​Wan-Kuen Jo, S. Kumar, Mark A. Isaacs, Adam F. Lee, S. Karthikeyan*, Cobalt promoted TiO2/GO for the photocatalytic degradation of oxytetracycline and Congo Red, Applied Catalysis B: Environmental, 201, 159-168, 2017 (Impact factor: 19.503)                                                                                                                    https://doi.org/10.1016/j.apcatb.2016.08.022

  43. S. Karthikeyan, Wan-Kuen Jo, R. Dhanalakshmi, Mark A. Isaacs, Karen Wilson, Adam F. Lee, G. Sekaran, A porous activated carbon supported Pt catalyst for the oxidative degradation of poly[(naphthaleneformaldehyde)sulfonate], Journal of Taiwan institute of Chemical Engineers,93, 289-297, 2018 (Impact factor: 5.876)                                         https://doi.org/10.1016/j.jtice.2018.07.028

  44. S. Karthikeyan, M. P. Pachamuthu, Mark A. Isaacs, Santosh Kumar, Adam F. Lee, and G.  Sekaran. Cu and Fe oxides dispersed on SBA-15: A Fenton type bimetallic catalyst for N, N-diethyl-p-phenyl diamine degradation. Applied Catalysis B: Environmental, 199, 323-330, 2017 (Impact factor: 19.503)                                    https://doi.org/10.1016/j.apcatb.2016.06.040

  45. S. Karthikeyan, D. Dionysiou, A. F. Lee, S. Suvitha, P. Maharaja, K. Wilson, G. Sekaran, Hydroxyl radical generation by cactus like copper oxide nanoporous carbon catalysts for microcystin-LR environmental remediation, Catalysis Science & Technology 6, 530–544, 2016 (Impact factor: 6.119)                                                     https://doi.org/10.1039/C5CY00888C

  46. S. Karthikeyan, R. Boopathy, G. Sekaran, Insitu generation of hydroxyl radical by cobalt oxide supported porous carbon for degradation of dye chemicals in leather industry wastewater, Journal of Collides and Interface Science, 448, 163-174, 2015 (Impact factor: 8.128)                                                                                                             https://doi.org/10.1016/j.jcis.2015.01.066

  47. S. Karthikeyan and G. Sekaran, Insitu generation of hydroxyl radical by nanoporous activated carbon derived from rice husk for environmental applications: Kinetic and thermodynamic constants, Physical Chemistry Chemical Physics, 16, 3924-3933, 2014 (Impact factor: 3.676)                                                                                   https://doi.org/10.1039/C3CP54185A

  48. S. Karthikeyan, C. Judia Magthalin, A. B. Mandal and G. Sekaran, Controlled synthesis and characterization of electron rich nano iron doped nanoporous activated carbon for catalysis of aqueous ortho phenylene diamine degradation, RSC Advances, 4, 9183 – 19195, 2014 (Impact factor: 3.361)                                                             https://doi.org/10.1039/C4RA00754A

  49. S. Karthikeyan, K. Viswanathan, R.Boopathy and G.Sekaran, Three dimensional electro catalytic oxidation of aniline by boron doped mesoporous activated carbon, Journal of Industrial and Engineering Chemistry, 21, 942-950, 2014 (Impact factor: 6.064)
    https://doi.org/10.1016/j.jiec.2014.04.036

  50. S. Karthikeyan, C. Judia Magthalin, M. Mahesh, C. Anandan and G. Sekaran, Synthesis of reactive iron impregnated nanoporous activated carbon and its application in anaerobic biological treatment to enhance biodegradability of ortho-phenylenediamine, Journal of Chemical Technology and Biotechnology, 90, 1013-1026, 2014 (Impact factor: 3.174)
    https://doi.org/10.1002/jctb.4403

  51. S. Karthikeyan, R. Bavas Ahamed, M. Velan and G. Sekaran, Synthesis characterization of Co-NPAC and insitu hydroxyl radical generation for oxidation of dye laden wastewater from leather industry, RSC Advances, 4, 63354–63366, 2014 (Impact factor: 3.361)
    https://doi.org/10.1039/C4RA10536B

  52. S. Karthikeyan, M. Anil Kumar, P. Maharaja, T. Partheeban, J. Sridevi, G.Sekaran, Process optimization for the treatment of pharmaceutical wastewater catalyzed by poly sulpha sponge, Journal of Taiwan Institute of Chemical Engineers, 45, 1739–1747, 2014 (Impact factor: 5.876)
    https://doi.org/10.1016/j.jtice.2014.01.009

  53. S. Karthikeyan, C. Anandan, J. Subramanian and G. Sekaran, Characterization of iron based catalyst and its application to the treatment of municipal wastewater, RSC Advances, 3, 1–14, 2013 (Impact factor: 3.361)
    https://doi.org/10.1039/C3RA41733F

  54. S. Karthikeyan, R. Boopathy, V.K. Gupta, G. Sekaran, Preparation, characterizations and its application of heterogeneous Fenton catalyst for the treatment of synthetic phenol solution, Journal of Molecular Liquids, 177, 402–408, 2013 (Impact factor: 5.06)
    https://doi.org/10.1016/j.molliq.2012.10.011

  55. S. Karthikeyan, V.K. Gupta, R. Boopathy, A. Titus, G. Sekaran*, A new approach for the degradation of high concentration of aromatic amine by heterocatalytic Fenton oxidation: Kinetic and spectroscopic studies, Journal of Molecular Liquids, 173, 153–163, 2012 (Impact factor: 6.165)
    https://doi.org/10.1016/j.molliq.2012.06.022

  56. S. Karthikeyan, A. Titus, A. Gnanamani, A. B. Mandal, G. Sekaran, Treatment of textile wastewater by homogeneous and heterogeneous Fenton oxidation processes, Desalination, 281, 438–445, 2011 (Impact factor: 9.501)
    https://doi.org/10.1016/j.desal.2011.08.019

  57. S. Karthikeyan, M. Ezhil Priya, R. Boopathy, M. Velan, A. B. Mandal, G. Sekaran* Heterocatalytic Fenton oxidation process for the treatment of tannery effluent: kinetic and thermodynamic studies. Environmental Science and Pollution Research, 19 1828-1840, 2011 (Impact factor: 4.223)
    https://doi.org/10.1007/s11356-011-0691-1

  58. Chitiphon Chuaicham, Karthikeyan Sekar, Yihuang Xiong, Vellaichamy Balakumar, Yanisa Mittraphab, Kuniyoshi Shimizu, Bunsho Ohtani, Ismaila Dabo, Keiko Sasaki, Single-step synthesis of oxygen-doped hollow porous graphitic carbon nitride for photocatalytic ciprofloxacin decomposition, Chemical Engineering Journal, 425, (2021), 130502(Impact factor: 13.273)
    https://doi.org/10.1016/j.cej.2021.130502

  59. Vellaichamy Balakumar, Ramalingam Manivannan, Chitiphon Chuaicham, Karthikeyan  Sekar and Keiko Sasaki, A simple tactic synthesis of hollow porous graphitic carbon nitride with significantly enriched photocatalytic performance, Chemical Communication, 2021, doi.org/10.1039/D1CC02355A (Impact factor: 6.222)
    https://doi.org/10.1039/D1CC02355A

  60. Ramasamy Boopathy, Nikita Pratihary, Sekar Karthikeyan and Trupti Das, Cobalt promoted bifunctional graphene composite (Co@pGSC) for heterogeneous Peroxymonosulfate activation, Chemical Engineering Journal, 399 (2020) 1257522. DOI: doi.org/10.1016/j.cej.2020.125752 (Impact factor: 13.273)
    https://doi.org/10.1016/j.cej.2020.125752

  61. Chitiphon Chuaicham, Sekar Karthikeyan, JT Song, Tatsumi Ishihara, Bunsho Ohtani, and Keiko Sasaki, Importance of ZnTiO3 phase in ZnTi-mixed metal oxide photocatalysts derived from layered double hydroxide, ACS Appl. Mater. Interfaces, 2020, 12, 8, 9169–9180 (Impact factor: 9.229)
    https://doi.org/10.1021/acsami.9b18785

  62. Chitiphon Chuaicham, Sekar Karthikeyen, Yihuang Xiong, Ismaila Dabo, Bunsho Ohtani, Yoonyoung Kim, JT Song, Tatsumi Ishihara, and Keiko Sasaki, Energy-resolved distribution of electron traps for O/S-doped carbon nitrides by reversed double-beam photoacoustic spectroscopy and the photocatalytic reduction of Cr (VI). Chemical Communications, 2020, 56, 3793-3796 (Impact factor: 6.222)                                                                                           https://doi.org/10.1039/C9CC09988C

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