The exploration of proficient and stable H₂ producing photocatalysts, specifically materials without noble metals, is highly anticipated, to initiate solar fuel generation for practical applications. Herein, novel CdS-Bi₂MoO₆ core–shell heterostructures (CdS-BMO CSHs) are prepared by a two-step solvothermal method, in which Bi₂MoO₆ nanosheets are grown on the surface of CdS nanorods. The resultant CdS-BMO CSHs display efficient charge separation and a low electron–hole recombination rate, promising excellent interfacial charge transfer properties. Meanwhile, the enhanced specific surface area and pore structure impart CdS-BMO CSHs with abundant active sites for the H₂ evolution reaction. As a result, a heterojunction of CdS-BMO CSHs shows remarkable improvement in the photocatalytic H₂ evolution reaction under visible light irradiation. The H₂ evolution rate of optimized CdS-BMO CSHs is six times that of pristine CdS and ten times that of Bi₂MoO₆ nanosheets. This work could contribute to the further development of novel and highly efficient photocatalysts for the H₂ evolution reaction.

中文翻译：

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将钙钛矿型Bi2MoO6纳米片集成到一维CdS上：II型异质结构光催化系统，用于在析氢反应中进行有效的电荷分离

迫切期望探索能产生高效率且稳定的H _2的光催化剂，特别是不含贵金属的材料，从而启动太阳能电池的实际应用。在此，通过两步溶剂热法制备了新颖的CdS-Bi ₂ MoO ₆核-壳异质结构（CdS-BMO CSHs），其中Bi ₂ MoO ₆纳米片生长在CdS纳米棒的表面上。所得的CdS-BMO CSH表现出有效的电荷分离和低的电子-空穴复合率，有望实现出色的界面电荷转移性能。同时，增加的比表面积和孔结构使CdS-BMO CSH具有丰富的H ₂活性位点进化反应。结果，CdS-BMO CSHs的异质结在可见光照射下显示出光催化H ₂析出反应的显着改善。优化的CdS-BMO CSH的H ₂释放速率是原始CdS的6倍，Bi ₂ MoO ₆纳米片的10倍。这项工作可能有助于H ₂析出反应的新型和高效光催化剂的进一步发展。