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

IF 3.4 3区化学 Q2 CHEMISTRY, PHYSICAL Catalysis Communications Pub Date : 2024-02-01 DOI:10.1016/j.catcom.2024.106861

Lili Zhang , Chunyan Zhang , Jianjun Li , Keyuan Sun , Jindi Zhang , Mengyang Huang , Jiaqiang Wang

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Abstract

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.

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水热法制备的未活化豆芽生物炭支持的 CdS 具有显著增强的光催化氢进化活性

在不添加任何活化剂的情况下，通过水热法结合冷冻干燥法制备了未活化豆芽（Faba pullulat）生物炭（BSB）支撑硫化镉复合材料（CdS/BSB）。X射线衍射（XRD）和扫描电子显微镜（SEM）分别对其结构和形貌进行了详细表征。CdS/BSB(5:4)的质量比为 5:4，其光催化产氢率最高，达到 17.7 mmol.g-1.h-1，分别是不含生物炭的合成 CdS 和商业活性炭支持的 CdS 的 3.93 倍和 3.2 倍。这些结果表明，从豆芽中提取的生物炭可以成为一种低成本、可再生、环保且不含金属的制氢催化剂。

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来源期刊

Catalysis Communications 化学-物理化学

CiteScore

6.20

自引率

2.70%

发文量

183

审稿时长

46 days

期刊介绍： Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.