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Photocatalytic activity of CuInS2 nanoparticles synthesized via a simple and rapid microwave heating process

Chumha, Nawapong, Pudkon, Watcharapong, Chachvalvutikul, Auttaphon, Luangwanta, Tawanwit, Randorn, Chamnan, Inceesungvorn, Burapat, Ngamjarurojana, Athipong and Kaowphong, Sulawan 2020. Photocatalytic activity of CuInS2 nanoparticles synthesized via a simple and rapid microwave heating process. Materials Research Express 7 (1) , 015074. 10.1088/2053-1591/ab6885

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Abstract

In this research, visible–light photocatalytic activities of CuInS2 nanoparticles for degradation of three organic dyes (rhodamine B; RhB, methylene blue; MB, and methyl orange; MO) were investigated. The CuInS2 nanoparticles were synthesized by a simple and rapid microwave heating process using sodium sulfide as a sulfur source and then characterized by x–ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET), and UV–vis diffuse reflectance spectroscopy (UV–vis DRS) techniques. The synthesized CuInS2 nanoparticles exhibited excellent photocatalytic degradation activity to the cationic dyes (RhB and MB) when compared with that of anionic dye (MO). Zeta potential of the CuInS2 photocatalyst was measured to elucidate the adsorption ability toward dye molecules. A possible photocatalytic degradation mechanism was proposed based on active species quenching experiments and Mott–Schottky analysis.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Publisher: IOP Publishing: Hybrid Open Access
ISSN: 2053-1591
Date of First Compliant Deposit: 14 May 2021
Date of Acceptance: 7 January 2020
Last Modified: 20 May 2021 15:15
URI: http://orca.cardiff.ac.uk/id/eprint/141350

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