Graphitic carbon nitride-stabilized CdS@CoS nanorods: An efficient visible-light-driven photocatalyst for hydrogen evolution with enhanced photo-corrosion resistance. (23rd November 2017)

• Record Type: Journal Article
• Authors: Fang, Xueyou; Song, Jialing; Pu, Tingting; Wang, Chenhui; Yin, Chaochuang; Wang, Junjie; Kang, Shifei; Shi, Huancong; Zuo, Yuanhui; Wang, Yangang; Cui, Lifeng
• Is Part Of: International journal of hydrogen energy. Volume 42:Number 47(2017)
• Page Start: 28183
• Page End: 28192
• Publication Date: 2017-11-23
• Subjects: Core-shell -- Nanorods -- CdS -- G-C3N4 -- Photocatalytic hydrogen evolution; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2017.09.075
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: In this work, a series of highly efficient and noble metal-free Co0.2 Cd0.8 S/g-C3 N4 nanocomposites were synthesized via a facile one-step hydrothermal strategy. The Co0.2 Cd0.8 S/g-C3 N4 composites modified with 10 wt% g-C3 N4 (CCNE10) exhibited the highest photocatalytic hydrogen evolution rate, which was 1.85-times as high as that of pure Co0.2 Cd0.8 S and 7.85-times higher than CdS. Furthermore, the CCNE10 catalyst was very stable in cycling hydrogen production, which is ascribed to the unique gC3 N4 modified CdS@CoS structure with fast photogenerated electron transport character. Highlights: Co0.2 Cd0.8 S/g-C3 N4 composites are synthesized by a one-step hydrothermal method. The photocatalytic activity of the composites was greatly improved compared to pure CdS. The stability of photocatalyst is significantly enhanced after the addition of g-C3 N4 . Co0.2 Cd0.8 S with 10 wt% g-C3 N4 addition shows a high H2 evolution rate of 35.50 mmol h −1 g −1 under visible light irradiation.