Unactivated bean sprout () 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.h, 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.

中文翻译：

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水热制备未活化豆芽生物炭负载CdS，显着增强光催化析氢活性

在不添加任何活化剂的情况下，通过水热结合冷冻干燥制备了未活化豆芽（）生物炭（BSB）负载的硫化镉复合材料（CdS/BSB）。结构和形貌分别通过 X 射线衍射 (XRD) 和扫描电子显微镜 (SEM) 进行了详细表征。 CdS与BSB质量比为5:4的CdS/BSB(5:4)光催化产氢率最高，为17.7 mmol.gh，分别是不含生物炭的合成CdS和商业活化的CdS的3.93和3.2倍。分别是碳负载的CdS。这些结果表明，源自豆芽的生物炭可能是一种低成本、可再生、环境友好且无金属的制氢助催化剂。