Megala, S. and Silambarasan, A. and Kanagesan, S. and Selvaraj, M. and Maadeswaran, P. and Ramesh, R. and Alam, M. Mujahid and Assiri, Mohammed A. (2022) Interfacial coupling of CuWO4 nanoparticles on NiAl LDH as a novel photoctalyst for dissolved organic dye degradation. Journal of Molecular Structure, 1252. ISSN 0022-2860, DOI https://doi.org/10.1016/j.molstruc.2021.132149.
Full text not available from this repository.Abstract
The NiAl LDH/CuWO4 (LCW) nanocomposites were successfully synthesized by in-situ hydrothermal method and utilized as a photocatalyst for decomposition of methylene blue (MB) dye. The physicochemical properties of all samples were characterized by XRD, FTIR, FE-SEM, HR-TEM, XPS, UV-DRS, and PL techniques. The photogenerated charge carrier recombination was measured by using photoelectrochemical (I-t, EIS and M-S) measurements. The heterojunction nanocomposite created by combining CuWO4 with LDH promoted the separation of photo-generated carriers, resulting in improved catalytic performance. The emission of undesirable dye waste from textile industrial in the environment is a major concern of environmental pollution and toxicity. In this context, we used the LDH and CuWO4 based nanocomposites for MB decomposition. Among the prepared samples, LDH with 5% CuWO4 (LCW5) exhibited 87.5% degradation of initial MB concentration, whereas, photodegradation of MB is 19.8% without any catalyst under visible light illumination for five hours. The stability of the photocatalyst was detected in three consecutive cycles and it showed good stability. (C) 2021 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Funders: | DST-SERB, India [Grant No: EMR/2017/001238], Department of Science & Technology (India) [Grant No: SR/FST/PSII/2017/28(C)], Deanship of Scientific Research at King Khalid University through the Large Research Group Project [Grant No: R.G.P. 2/109/1442] |
| Uncontrolled Keywords: | Photocatalyst; LDH/CuWO4; Heterojunction; Methylene blue; Dye degradation |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 22 Jul 2022 02:32 |
| Last Modified: | 22 Jul 2022 02:32 |
| URI: | http://eprints.um.edu.my/id/eprint/33642 |
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