One‐step facile fabrication and photocatalytic activities of ZnS@g‐C3N4 nanocomposites from sulfatotris(thiourea)zinc(II) complex. (22nd December 2015)

• Record Type: Journal Article
• Authors: Zhang, Yi; Wen, Rongying; Guo, Di; Guo, Hongxu; Chen, Jianhua; Zheng, Zishan
• Is Part Of: Applied organometallic chemistry. Volume 30:Number 3(2016:Mar.)
• Page Start: 160
• Page End: 166
• Publication Date: 2015-12-22
• Subjects: ZnS@g‐C3N4 -- nanocomposite -- one‐step calcination -- visible‐light photocatalytic activity; Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.3414
• Languages: English
• ISSNs: 0268-2605

Abstract

Abstract : ZnS@g‐C3 N4 composite photocatalyst containing g‐C3 N4 nanoplates and ZnS nanoparticles was facilely fabricated by one‐step calcination from the complex sulfatotris(thiourea)zinc(II) for the first time. Thiourea serves not only as the sulfur source of ZnS, but also as the precursor of g‐C3 N4 . The as‐prepared composite photocatalyst was then characterized using Fourier transform infrared, diffuse reflectance and X‐ray photoelectron spectroscopies, X‐ray diffraction, scanningelectron microscopy and Brunauer–Emmett–Teller surface area measurements. It displays a higher visible‐light photocatalytic activity, including an ability to photodecompose water to produce hydrogen and organic dye photodegradation, than ZnS alone. The photocatalytic mechanism is also discussed in detail. Photoluminescence spectra and electrochemical impedance spectroscopy Nyquist plots indicate that the formation of the ZnS@g‐C3 N4 composite contributes to the separation of photoinduced charge carriers which enhances its photocatalytic activity. This study presents a new method for the fabrication of novel sulfide/g‐C3 N4 composites with enhanced photocatalytic performance. Copyright © 2015 John Wiley & Sons, Ltd. Abstract : ZnS@g‐C3 N4 composite photocatalyst containing g‐C3 N4 nanoplates and ZnS nanoparticles was easily fabricated by one‐step calcination from complex sulfatotris(thiourea)‐zinc(II) for the first time. It displays higher visible‐light photocatalytic activity, including its ability to photodecompose water to produce hydrogen and its organic dye photodegradation, than the ZnS alone. This study presents a novel and simple strategy of fabricating similar composite photocatalysts containing g‐C3 N4 .