Hydrothermally prepared unactivated bean sprouts biochar supported CdS with significantly enhanced photocatalytic hydrogen evolution activity

被引：0
|
作者：
Zhang L. [1 ]
Zhang C. [2 ]
Li J. [2 ]
Sun K. [2 ]
Zhang J. [1 ]
Huang M. [1 ]
Wang J. [1 ,2 ]
机构：
[1] School of Chemistry and Resources Engineering, Honghe University, Mengzi
[2] School of Chemical Sciences & Technology, School of Materials and Energy, Institute of International Rivers and Eco-security, Yunnan University, Kunming
来源：
Catalysis Communications | 2024年 / 187卷
基金：
中国国家自然科学基金;
关键词：
Bean sprout biochar; Cadmium sulfide; Photocatalyst; Photocatalytic hydrogen production; Visible light;
D O I：
10.1016/j.catcom.2024.106861
中图分类号：
学科分类号：
摘要：
Unactivated bean sprout (Faba pullulat) biochar (BSB) supported cadmium sulfide composites (CdS/BSB) were prepared by hydrothermal combined with freeze-drying without adding any activation agent. The structure and morphology have been characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) in detail, respectively. CdS/BSB(5:4) with a mass ratio of CdS to BSB of 5:4 had the highest photocatalytic hydrogen production rate of 17.7 mmol.g−1.h−1, which is about 3.93 and 3.2 times that of synthesized CdS without biochar and the commercial activated carbon supported CdS, respectively. These results suggested that biochar derived from bean sprout could be a low-cost, renewable, environmentally friendly and metal-free cocatalyst for hydrogen generation. © 2024
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