Efficient light harvesting and charge separation are of great importance in solar‐energy conversion on photocatalysts. Herein, the synthesis of a novel hollow porous CdS photocatalyst with effectively restrained electron–hole recombination is reported. By using microporous zeolites as a host and a hard template, ultrasmall Pd and PdS nanoparticles can be anchored separately onto the inner and outer surfaces of a hollow CdS structure. The metallic Pd pulls the photoexcited electrons away from CdS while PdS pushes the holes for more thorough oxidation of the sacrificial agent. The final Pd@CdS/PdS product exhibits superior visible‐light‐driven photocatalytic H₂ evolution rate of up to 144.8 mmol h⁻¹ g⁻¹. This is among the highest values of all the reported CdS‐based catalysts. This synthetic approach may be used to fabricate other highly efficient catalysts with spatially separated cocatalysts.

中文翻译：

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空心多孔CdS光催化剂

有效的光收集和电荷分离在光催化剂的太阳能转换中非常重要。本文报道了一种新型的中空多孔CdS光催化剂的合成，该光催化剂具有有效的电子-空穴复合抑制作用。通过使用微孔沸石作为主体和硬模板，可以将超小Pd和PdS纳米颗粒分别锚固在空心CdS结构的内表面和外表面上。金属Pd将光激发电子从CdS上拉开，而PdS则将孔推开，以便更彻底地氧化牺牲剂。最终的Pd @ CdS / PdS产品显示出卓越的可见光驱动的光催化H ₂释放速率，最高可达144.8 mmol h ^-1 g ^-1。这是所有已报道的基于CdS的催化剂中最高的值。该合成方法可用于制造具有空间分离的助催化剂的其他高效催化剂。