g-C_(3)N_(4)QDs@Go/MoS_(2)二维复合半导体催化剂的合成及光催化性能研究  

g-C_(3)N_(4)QDs@Go/MoS_(2)study on photocatalytic synthesis and properties of two-dimensional composite semiconductor catalys

作　　者：阿更兄 马尚文 马海燕 李淑依 吴可量 任铁真 A Geng-xiong;MA Shang-wen;MA hai-yan;LI shu-yi;WU ke-liang;REN Te-zhen(Bayingol Vocational and Technology College,Koela 841000,China;College of Biological and Chemical Engineering,Nanyang Institute of Technology,Nanyang 473004,China;Key Laboratory for Industrial microbial resources and fermentation utilization of Henan,Nanyang 473004,China;School of Chemical Engineering,Xinjiang University,urumqi 831100,China)

机构地区：[1]巴音郭楞职业技术学院石油化工学院,新疆库尔勒841000 [2]南阳理工学院生物与化学工程学院,河南南阳473000 [3]河南工业微生物资源与发酵利用重点实验室,河南南阳4730002 [4]新疆大学化工学院,新疆乌鲁木齐831100

出　　处：《化学研究与应用》2024年第4期728-737,共10页Chemical Research and Application

基　　金：新疆少数民族科技人才特殊培养计划科研项目(2020D03025)资助;自治区创新环境(人才、基地)建设专项(自然科学基金计划--基金项目)(2021D01A03)资助。

摘　　要：为了解决MoS_(2)纳米片容易堆积、导电性低的科学问题,通过水热法在MoS_(2)催化剂水热引入石墨烯增强其导电性,制备出Go/MoS_(2)纳米片,随后负载上已合成的量子点(g-C_(3)N_(4)QDS),构建出g-C_(3)N_(4)QDS@Go/MoS_(2)三元二维复合催化剂,用于光催化产氢。g-C_(3)N_(4)量子点由于其独特的电子结构和物理化学特性,其能带与MoS_(2)较为匹配,作为半导体材料也可以激发产生光生载流子,促进了整体催化产氢的效率。在本研究中复合催化剂显示出较高的光催化性能,2.5 h氢气产量为7.25μmol/g,相较于Go/MoS_(2),提升了近1.5倍。In order to solve the scientific problem of easy stacking and low conductivity of MoS_(2)nanosheets,graphene was introduced into MoS,catalyst by hydrothermal method to enhance its conductivity,and Go/MoS_(2)nanosheets were prepared.Subsequently,the synthesized quantum dots(g-C_(3)N_(4)QDS)were loaded onto them to construct g-C_(3)N_(4)QDS@Go/MoS_(2)ternary two-dimensional composite catalyst for photocatalytic hydrogen production.Due to its unique electronic structure and physical and chemical properties,the energy band of g-C_(3)N_(4)quantum dots is relatively matched with MoS_(2).As a semiconductor material,it can also be excited to generate photogenerated carriers,which promotes the overall catalytic hydrogen production efficiency.In this study,the composite catalyst showed high photocatalytic performance,with a hydrogen production of 7.25μmol/g after 2.5 hours compared to Go/MoS_(2),it has increased by nearly 1.5 times.

关 键 词：MoS_(2)催化剂 石墨烯 g-C_(3)N_(4)量子点 光催化制氢 

分 类 号：O614.6[理学—无机化学]