铂金
制氢
光催化
异质结
铁电性
材料科学
氢
分解水
金属
铂纳米粒子
可见光谱
化学工程
纳米颗粒
光催化分解水
载流子
纳米技术
催化作用
化学
光电子学
冶金
有机化学
工程类
电介质
作者
Longbin Chen,Pengqi Hai,Yaodong Yang,Chao Wu,Yongming Hu,Wei-Feng Rao
标识
DOI:10.1016/j.seppur.2022.123058
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 characterizations 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 μmol g−1 under continuous illumination 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.
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