Construction of a few-layer g-C_3N_4/α-MoO_3 nanoneedles all-solid-state Z-scheme photocatalytic system for photocatalytic degradation

作     者：Xiaoni Zhang Jianjian Yi Hanxiang Chen Mao Mao Liang Liu Xiaojie She Haiyan Ji Xiangyang Wu Shouqi Yuan Hui Xu Huaming Li Xiaoni Zhang;Jianjian Yi;Hanxiang Chen;Mao Mao;Liang Liu;Xiaojie She;Haiyan Ji;Xiangyang Wu;Shouqi Yuan;Hui Xu;Huaming Li

作者机构：School of the Environment and Safety EngineeringInstitute for Energy ResearchJiangsu University 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2019年第28卷第2期

页      面：65-71页

核心收录：

学科分类：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：supported by National Natural Science Foundation of China (21476097,21776118,21507046) Six Talent Peaks Project in Jiangsu Province (2014-JNHB-014) the Priority Academic Program Development of Jiangsu Higher Education Institutions 

主　　题：Flg-C3N4 α-MoO3 nanoneedles All-solid-state Z-scheme mechanism Low-dimensional nanostructure Photocatalytic degradation 

摘      要：The suppression of the recombination of electrons and holes(e–h) and the enhancement of the light absorption of semiconductors are two key points toward efficient photocatalytic ***,we report a few-layer g-C_3N_4/α-MoO_3 nanoneedles(flg-C_3N_4/α-MoO_3 NNs) all-solid-state Z-scheme mechanism photocatalyst synthesized via a typical hydrothermal method in a controlled *** recombination of the photo-induced e–h pairs could be effectively restrained by the Z-scheme passageway between the flg-C_3N_4 and α-MoO_3 NNs in the composite,which could also promise a high redox ability to degrade *** it became possible for the prepared photocatalyst to absorb light in a wide range of *** detailed mechanism was studied by electron spin-resonance spectroscopy(ESR).The low-dimensional nanostructure of the two constituents(α-MoO_3 NNs with one-dimensional structure and flg-C_3N_4 with two-dimensional structure) endowed the composite with varieties of excellent physicochemical properties,which facilitated the transfer and diffusion of the photoelectrons and increased the specific surface area and the active *** 10 wt% flg-C_3N_4/α-MoO_3 NNs showed the best photocatalytic performance toward RhB degradation,the rate of which was 71.86%,～2.6 times higher than that ofα-MoO_3 NNs.