The Dual-Function of GSH for Enhancing the CdS PEC Performance via Constructing Inorganic-Organic Hybrid Heterojunction and Organic Cocatalyst

被引：2
作者：
Meng, Yue [1 ]
Zhao, Quanyou [2 ]
Liu, Zhifeng [2 ,3 ]
机构：
[1] Huzhou Coll, Sch Life & Hlth Sci, Dept Pharmaceut Engn, Huzhou 313000, Peoples R China
[2] Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China
[3] Tianjin Chengjian Univ, Tianjin Key Lab Bldg Green Funct Mat, Tianjin 300384, Peoples R China
来源：
CATALYSIS LETTERS | 2023年 / 153卷 / 08期
关键词：
CdS; GSH; Inorganic-organic hybrid heterojunction; Organic cocatalyst; Photoelectrochemical water splitting; SEPARATION EFFICIENCY; WATER; PHOTOANODE; ELECTRODES; EVOLUTION; PREPARE; WO3/CDS; FILMS;
D O I：
10.1007/s10562-022-04180-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Finding a restful method to ameliorate the shortcoming of slow charge separation and narrow light absorption range in CdS photoanodes is a significant challenge in photoelectrochemical (PEC) water splitting. Thus, we firstly prepared the CdS/GSH film via hydrothermal method and solution adhesion method for revealing the dual-function of GSH adhesion for advancing the PEC performance of CdS via constructing inorganic-organic hybrid heterojunction and organic cocatalyst. The construction of CdS/GSH inorganic-organic hybrid heterojunction could suppress the carrier separation because the built-in electric field between heterojunction. Moreover, the adhesion of GSH effectively widens the visible light response ability of CdS. Furthermore, the abundant -OH in GSH play a role of cocatalyst because it is easy oxidized by photo-generated holes so as to lifting surface reaction kinetics. As except, the photocurrent density of 0.4 g GSH in solution for CdS/GSH heterojunction (CdS/GSH-4) is 1.48 mA/cm(2) at 1.23 V vs. RHE, which is 4.3 times that of CdS. Moreover, the carriers separation efficiency in surface and bulk is 1.71 and 1.68 times as much as CdS. Our detail research may create a bright tactics for designing and manufacturing a promising photoanode for PEC water splitting. [GRAPHICS] .
引用
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页码：2260 / 2269
页数：10
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