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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/20842
Title: Facile synthesis of CuCr2O4/BiOBr nanocomposite and its photocatalytic activity towards RhB and tetracycline hydrochloride degradation under household visible LED light irradiation
Authors: Ghorai K.
Bhattacharjee M.
Mandal D.
Hossain A.
Bhunia T.
Das M.
Ray P.P.
Show B.
Bera P.
Mandal, Tapas Kumar
Seikh M.M.
Gayen A.
Published in: Journal of Alloys and Compounds
Abstract: Here we report the development of CuCr2O4/BiOBr nanocomposite photocatalysts for the first time to serve the purpose of rhodamine B (RhB) and tetracycline hydrochloride (TC-HCl) degradation using household visible light emitting diode (LED) light. In this nanocomposite, sol-gel combustion made spherical shaped CuCr2O4 nanoparticles are decorated on BiOBr plates in single pot via precipitation method using cetyltrimethylammonium bromide (CTAB) as the Br source as well as the template. The present investigation highlights a significant advancement to tackle the challenge of visible light induced photocatalytic degradation of harmful organic dye RhB and antibiotic-pollutant TC-HCl. The 20%CuCr2O4/BiOBr nanocomposite exhibits high degradation activity for both RhB (96.0% in 15 min) and TC-HCl (96.7% in 300 min) in presence of LED light with good recycling characteristics. Detailed structural and optical characterization using XRD, BET, FESEM, TEM, HRTEM, EDX, XPS, UV−Vis DRS, PL spectroscopy and Raman spectroscopy have been carried out prior performing photocatalytic activity tests. The structural as well as optical data have revealed a significant improvement in visible light absorption of BiOBr in presence of CuCr2O4. Based on energy band modification at the heterojunction of nanocomposite materials and their radical trapping ability, a plausible mechanistic path of photocatalytic degradation is presented. © 2020 Elsevier B.V.
Citation: Journal of Alloys and Compounds, 867
URI: https://doi.org/10.1016/j.jallcom.2020.157947
http://repository.iitr.ac.in/handle/123456789/20842
Issue Date: 2021
Publisher: Elsevier Ltd
Keywords: Bismuth oxybromide
Copper chromate
Domestic LED light source
Nanocomposite photocatalyst
RhB
Tetracycline hydrochloride
ISSN: 9258388
Author Scopus IDs: 57203318011
57219181806
55326471000
57219183752
57222013758
14051471000
55424774600
49962375400
7003365236
57200780613
6603069460
6701641375
Author Affiliations: Ghorai, K., Department of Chemistry, Jadavpur University, Kolkata, 700032, India
Bhattacharjee, M., Department of Chemistry, Jadavpur University, Kolkata, 700032, India
Mandal, D., Department of Polymer Science, Indian Association for the Cultivation of Science, Kolkata, 700032, India
Hossain, A., Department of Chemistry, Jadavpur University, Kolkata, 700032, India
Bhunia, T., Department of Chemistry, Jadavpur University, Kolkata, 700032, India
Das, M., Department of Physics, Jadavpur University, Kolkata, 700032, India
Ray, P.P., Department of Physics, Jadavpur University, Kolkata, 700032, India
Show, B., Department of Chemistry, Jadavpur University, Kolkata, 700032, India
Bera, P., Surface Engineering Division, CSIR-National Aerospace Laboratories, Bengaluru, 560017, India
Mandal, T.K., Department of Chemistry and Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Seikh, M.M., Department of Chemistry, Visva-Bharati, Santiniketan, 731235, India
Gayen, A., Department of Chemistry, Jadavpur University, Kolkata, 700032, India
Funding Details: Financial supports from the Science and Engineering Research Board (SERB), Government of India , by the grants EMR/2016/001811 to A. Gayen and EMR/2016/000083 to Md. M. Seikh, UGC research fellowship to K. Ghorai, PURSE II grant and DST Special Grant to the Department of Chemistry, Jadavpur University in the International Year of Chemistry 2011 are gratefully acknowledged. BS would like to acknowledge RUSA 2.0 grant, Jadavpur University for updating the electrochemical system. Jadavpur University, JU; Department of Science and Technology, Ministry of Science and Technology, India, डीएसटी; University Grants Committee, UGC; Science and Engineering Research Board, SERB: EMR/2016/000083, EMR/2016/001811
Corresponding Author: Gayen, A.; Department of Chemistry, India; email: arup.gayen@jadavpuruniversity.in Seikh, M.M.; Department of Chemistry, India; email: mdmotin.seikh@visva-bharati.ac.in
Appears in Collections:Journal Publications [CY]

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