Highly efficient photocatalytic hydrogen production by platinum modified ferroelectric SrBi4Ti4O15

被引：15

作者：

Chen, Longbin ^{[1
]}

Hai, Pengqi ^{[2
]}

Yang, Yaodong ^{[1
]}

Wu, Chao ^{[2
]}

Hu, Yongming ^{[3
]}

Rao, Wei-Feng ^{[1
]}

机构：

[1] Qilu Univ Technol, Shandong Inst Mech Design & Res, Shandong Acad Sci, Fac Mech Engn, Jinan 250353, Peoples R China

[2] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710049, Peoples R China

[3] Hubei Univ, Fac Phys & Elect Sci, Hubei Key Lab Ferro & Piezoelect Mat & Devices, Wuhan 430062, Hubei, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2023年 / 309卷

基金：

美国国家科学基金会;

关键词：

Ferroelectrics; DFT; Localized surface plasmon resonance; Water splitting; VISIBLE-LIGHT; H-2; PRODUCTION; CHARGE SEPARATION; NANOPARTICLES; PERFORMANCE; COMPOSITE; SURFACE; SRTIO3; EVOLUTION; PHOTOACTIVITY;

D O I：

10.1016/j.seppur.2022.123058

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Combining metal with ferroelectrics is one of the reliable strategies to enhance the photocatalytic water splitting of ferroelectrics dramatically. However, the metal loading ratio is directly related to the synergistic effect of catalysts. In order to find the appropriate loading of Pt, we fabricated SrBi4Ti4O15 (SBTO) nanosheets (NSs) and deposited different amounts of Pt nanoparticles (NPs) to form heterojunction. The optoelectronic characteriza-tions verified that the Pt-modified SBTO NSs have broadened absorption of visible light; produce more long-lived charge carriers. The photocatalytic hydrogen production can reach 11700 mu mol g(-1) under continuous illumi-nation for 3 h from the sample containing 6 wt% Pt, showing a much higher hydrogen evolution rate than other ferroelectric materials under similar reaction systems. Our work provides a valuable and feasible solution to produce hydrogen from water.

引用

页数：8

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