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2D/2D heterostructured MoS <sub>2</sub> /PtSe <sub>2</sub> promoting charge separation in FTO thin film for efficient and stable photocatalytic hydrogen evolution

Shutong Wan, Hao-Tong Li, Zhenhui Ma, He-Chuan Zhang, Yan‐Zhen Zheng

2022Rare Metals23 citationsDOI

Abstract

摘要 开发稳定的光催化膜对与太阳能‐氢能转化以及污染物降解具有重要的现实意义, 然而至今仍是一个大挑战。本工作采用热蒸与化学气相沉积 (CVD) 法在FTO上连续沉积MoS 2 和PtSe 2 制备一种稳定的MoS 2 /PtSe 2 /FTO光催化薄膜。优化的MoS 2 /PtSe 2 /FTO膜的光催化产氢速率1560 mmol·h −1 ·m −2 , 远远高于FTO和其它单MX 2 /FTO。而且, MoS 2 /PtSe 2 /FTO膜具有良好的材料结构和性能稳定性, 在100 h的持续光催化实验中光催化性能没有减弱。一系列电/光谱检测证实了2D/2D异质结构的MoS 2 /PtSe 2 有利于FTO上光生电子‐空穴的分离和转移, 有效抑制了电荷复合。MoS 2 /PtSe 2 /FTO膜显示出巨大的潜力作为一个稳定高效的光催化剂应用在太阳能‐氢能和污染物降解领域。

Topics & Concepts

Materials sciencePhotocatalysisThin filmChemical engineeringCharge (physics)NanotechnologyHydrogenOptoelectronicsChemical physicsCatalysisChemistryOrganic chemistryPhysicsEngineeringQuantum mechanicsAdvanced Photocatalysis Techniques2D Materials and ApplicationsGas Sensing Nanomaterials and Sensors
2D/2D heterostructured MoS <sub>2</sub> /PtSe <sub>2</sub> promoting charge separation in FTO thin film for efficient and stable photocatalytic hydrogen evolution | Litcius