In situ thermal-assisted loading of monodispersed Pt nanoclusters on CdS nanoflowers for efficient photocatalytic hydrogen evolution

被引：36

作者：

Li, Yunfeng ^{[1
,2
]}

Zhou, Xuanbo ^{[1
]}

Xing, Yan ^{[1
]}

机构：

[1] Northeast Normal Univ, Coll Chem, Jilin Prov Key Lab Adv Energy Mat, Changchun 130024, Peoples R China

[2] Xian Polytech Univ, Coll Environm & Chem Engn, Xian 710000, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2020年 / 506卷

基金：

中国国家自然科学基金;

关键词：

Photocatalysis; Pt nanoclusters; Hydrogen evolution; Co-catalyst; CdS; DOUBLE-SHELLED NANOCAGES; POLYMERIC PHOTOCATALYST; PT/CDS PHOTOCATALYST; FACILE PREPARATION; MOS2; NANOSHEETS; COCATALYST; WATER; PERFORMANCE; NANOSTRUCTURES; GENERATION;

D O I：

10.1016/j.apsusc.2019.144933

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Noble metal Pt has widely been used as a highly effective co-catalyst for the photocatalytic H-2 generation. However, the undesirable hydrogen oxidation reaction can also be simultaneously catalyzed by metal Pt. Herein, in situ thermal-assisted loading of monodispersed Pt nanoclusters (Pt NCs) on the CdS nanoflowers have been achieved by a hydrothermal method following with a high-temperature thermal treatment under N-2 atmosphere, leading to an enhanced interaction between CdS and Pt, as well as an increased proportion of Pt-0 in Pt NCs. Notably, the co-existence of a small amount of Pt2+ in Pt NCs help to suppress the unfavorable hydrogen back-oxidation effectively. The resulting Pt-CdS composite shows an extended visible-light response and a highly efficient photo-generated charges separation. As a result, the as-prepared Pt-CdS composite not only possesses a superior photocatalytic hydrogen production rate, but also greatly reduces the usage of noble metal Pt, which holds a potential promise in practical utilizing of solar energy for the fuel generation.

引用

页数：7

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