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2nd Edition of International Conference on

Materials Science and Engineering

March 28 -30, 2022 | Singapore

2022 Speakers

2D/1D g-C3N4/MnO2 nanocomposite as a Z-scheme photocatalyst for preferable photocatalytic hydrogen production and dye degradation applications

Gurunathan Karuppasamy, Speaker at Speaker at Materials Conferences: Gurunathan Karuppasamy
University, Karaikudi , India
Title : 2D/1D g-C3N4/MnO2 nanocomposite as a Z-scheme photocatalyst for preferable photocatalytic hydrogen production and dye degradation applications

Abstract:

Designing two different dimensional (2D/1D) mixed nanocomposite using layered and nanorods materials is considered to be an effective approach to acquire quite efficient photocatalysts. Herein, 2D/1D g-C3N4/MnO2 heterostructured photocatalyst was prepared via MnO2 nanorods inserted with nanolayered g-C3N4 using a facile pyrolysis method. The synthesized two different dimensional (2D/1D) mixed nanocomposite was characterized by a range of techniques to study its micromorphology, structure, chemical composition/states and so on. The g-C3N4/MnO2 nanocomposite reveals greatly enhanced photocatalytic activities for water splitting hydrogen productions and MB dye degradation, in comparison to the pristine g-C3N4 or pure MnO2 nanorods. Based on the optical absorption measurement, X-ray photoelectron spectra measurements, we can conclude that the g-C3N4 nanosheets and the MnO2 nanorods are together between them to creat a Z-scheme heterojunction, wherein the photo-induced electrons in MnO2 combined with the holes in g-C3N4, leading to enhanced charge carrier generation and utilization upon photoexcitation. This work furnished an effective procedure to construct the 2D/1D heterojunctions for the application in photocatalytic water splitting and dye treatment.

2D/1D g-C3N4/MnO2 nanocomposite, Z-scheme photocatalyst, photocatalytic hydrogen production and dye degradation

Biography:

Prof. K. Gurunathan, BOYSCAST(DST, India) Fellow, Brain Pool Scientist ( KOFTS,S. Korea), Selected for LEAP program ( NIEPA, New Delhi) and Rastriya Nirman Rathna Awardee, EGSI, Delhi heading the Dept. for Nanoscience & Technology, Alagappa University, Karaikudi-630 003, INDIA since 2008. He is a Chairperson for  School of Chemical Sciences, Alagappa University and Fellow TN Academy of Sciences, Chennai.  He was a member of Syndicate, Senate, IQAC  and he is member of academic council of Alagappa University, Karaikudi. At present, he is Special Officer ( Projects) of Alagappa University, Karaikudi.He received  B.Sc ( Chemistry) & M.Sc ( Chemistry) from M. K. University, Madurai and Ph.D ( Chemistry-Energy) from Madras University, Chennai, India. Before joining Alagappa University, he was R&D Materials scientist  & Project Program Coordinator,  Centre for Materials for Electronics Technology ( C-MET),  ( Ministry of Information Tech., GOI),  Pune, INDIA from 1997  to 2008.

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