Ni_(x)Co_(1-x)S as an effective noble metal-free cocatalyst for enhanced photocatalytic activity of g-C_(3)N_(4)

作     者：Yuting Gao Feng Chen Zhe Chen Hongfei Shi Yuting Gao;Feng Chen;Zhe Chen;Hongfei Shi

作者机构：School of Material Science and TechnologyJilin Institute of Chemical TechnologyJilin132022China Jinlin Petrochemical Company Organic Synthetic PlantsJinlin132021China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2020年第56卷第21期

页      面：227-235页

核心收录：

学科分类：081702[工学-化学工艺] 081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：financially supported by the National Natural Science Foundation of China(No.21801091) the Science Technology Development Planning of Jilin Province(No.20190103117JH) the Education Department Project of Jilin Province(Nos.JJKH20200242KJ and JJKH20190827KJ) 

主　　题：Non-noble metal cocatalyst Ni_(x)Co_(1-x)S g-C_(3)N_(4) Photocatalytic hydrogen production Dye degradation 

摘      要：Solar photocatalysis,as a method of green energy production and sustainable technology,has been regarded as one of the most effective strategies to resolve environmental issues and the current energy *** this work,intimate contact hollow Ni_(x)Co_(1-x)S polyhedron/g-C3N4 nanosheet composites were prepared in-situ through a facile one-step hydrothermal *** as-prepared Ni_(x)Co_(1-x)S/g-C_(3)N_(4) composites showed superior photocatalytic activity and high stability for H2 generation and methyl orange(MO)degradation under visible light *** optimized 4 wt.%Ni_(x)Co_(1-x)S/g-C_(3)N_(4) composite attained a maximum H2 evolution rate of 1420μmol g^–1 h^–1,which was about 157 times higher than that of pure *** addition,the Ni_(x)Co_(1-x)S/g-C_(3)N_(4) composite also exhibited greatly improved photocatalytic activity for dye degradation,which for MO was at 98.14%in 9 *** outstanding photocatalytic performance was predominantly attributed to the unique architecture of hollow Ni_(x)Co_(1-x)S polyhedrons,which not only provided more active sites at the edges and surface as convenient charge transfer channels,but also promoted the separation and transport of electron-hole *** work provides some novel ideas for the design and development of highly efficient noble metal-free cocatalyst/semiconductor systems for photocatalytic H2 generation and dye degradation.