黑磷敏化的金/氮化碳异质结全光谱废水产氢性能研究

作     者：王立晶 齐亚芳 李会 关壬铨 张付力 周庆峰 吴丹丹 赵钊 周钢 孙再成 Lijing Wang;Yafang Qi;Hui Li;Renquan Guan;Fuli Zhang;Qingfeng Zhou;Dandan Wu;Zhao Zhao;Gang Zhou;Zaicheng Sun

作者机构：Henan Engineering Center of New Energy Battery MaterialsHenan D&A Engineering Center of Advanced Battery MaterialsCollege of Chemistry and Chemical EngineeringInstitute of Architectural EngineeringShangqiu Normal UniversityShangqiu476000China Faculty of PhysicsFaculty of ChemistryNortheast Normal UniversityChangchun130024China Center of excellence for environmental safety and biological effectsBeijing Key Lab for Green Catalysis and SeparationDepartment of Chemistry and Chemical EngineeringCollege of Environmental and Energy EngineeringBeijing University of TechnologyBeijing100124China Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of EducationCollege of EnvironmentHohai UniversityNanjing210098China 

基　　金：supported by the National Natural Science Foundation of China(21801092,21872001,U1704140) the Program for the Development of Science and Technology of Jilin Province(20200801040GH) the Science and Technology Research Project of Henan Province(202102210055) the General project of Chinese postdoctoral program(2020M672263) the Key Research Programs in Universities of Henan Province(20A150031) the Science and Technology Innovation Talent Support Program of Henan Province(19HASTIT034) 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2022年第65卷第4期

页      码：974-984页

摘      要：光催化废水产氢技术是缓解日益严峻的能源和环境危机的有效方法.然而,由于载流子复合率较高、太阳光利用率较低,目前光催化活性仍然难以满足工业发展的需要.基于以上问题,本文设计了具有全谱太阳光响应的黑磷敏化的金/氮化碳(BP/Au/CN)异质结光催化剂,该三元异质结可以在实现降解双酚A的同时,将水分解为氢气,其光催化产氢活性可达到195.8μmol h^(−1)g^(−1).此外,在紫外-可见光照射下,BP/Au/CN的光催化产氢活性可以达到1400.8μmol h^(−1)g^(−1),是CN或BP/CN样品的近70倍,Au/CN异质结的2倍.光催化活性的提高表明异质结中三种元素具有良好的协同作用.本文将一系列实验表征与理论计算相结合,对BP/Au/CN的光催化机理进行了系统研究.结果表明,黑磷的全谱太阳光吸收能力、金的电子传输介质作用以及三种材料匹配的功函数是其光催化活性提高的关键因素.此外,通过金和黑磷的欧姆接触以及Au/CN杂化体系中肖特基异质结的构筑,实现了电子从黑磷到金,再到氮化碳的单向转移,从而提高了载流子的传输性能.

主 题 词：Au/carbon nitride black phosphorus photocatalysis H_(2)production waste treatment 

学科分类：083002[083002] 0830[工学-生物工程类] 081702[081702] 081705[081705] 0817[工学-轻工类] 08[工学] 0805[工学-能源动力学] 080502[080502] 0703[理学-化学类] 

核心收录：

D　O　I：10.1007/s40843-021-1833-1

馆 藏 号：203106921...