Facile one-step synthesis of a WO3/ZnWO4 heterojunction modified using ZnFe LDH enhances the PEC water splitting efficiency

被引：1
|
作者：
Liu, ZiYang [1 ]
Jia, Shiyu [1 ]
Hu, Yiwen [1 ]
Fang, Yanling [1 ]
Feng, Yongjun [1 ]
Li, Dianqing [1 ]
Bai, Shouli [1 ]
Luo, Ruixian [1 ]
Chen, Aifan [1 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Key Lab Environm Harmful Chem Anal, Beijing 100029, Peoples R China
来源：
DALTON TRANSACTIONS | 2024年 / 53卷 / 41期
基金：
中国国家自然科学基金;
关键词：
LAYERED DOUBLE HYDROXIDE; HEMATITE PHOTOANODE; OPTICAL-PROPERTIES; WO3; OXIDATION; FILMS; PERFORMANCE; COMPOSITE; ARRAYS;
D O I：
10.1039/d4dt01883d
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Photoelectrochemical water splitting represents a promising approach for directly converting solar energy into green hydrogen, offering a potential solution to the challenges of energy shortages and environmental pollution. In this work, a WO3/ZnWO4 binary heterojunction was synthesised by a simple and effective one-step drop casting method to enhance the charge separation efficiency; ZnFe LDH was deposited on the surface of the heterojunction with the aim of accelerating water oxidation and synergising with the heterojunction to enhance the photoelectrochemical performance of the photoanode. The photocurrent density of the WO3/ZnWO4/ZnFe LDH electrode can reach 2.1 mA cm(-2) at 1.23 V (vs. RHE). This value is approximately 4 times greater than that observed for pure WO3 (0.53 mA cm(-2)). The IPCE and ABPE were able to improve by 3.1 times and 6 times, respectively.
引用
收藏
页码：17059 / 17070
页数：12
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