青岛科技大学  English 
李桂村
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教授 博士生导师  
硕士生导师  

教师拼音名称:liguicun

出生日期:1974-05-12

电子邮箱:

所在单位:材料学院综合办公室

职务:材料科学与工程学院院长

学历:博士研究生

办公地点:材料楼225房间

性别:男

联系方式:guicunli@qust.edu.cn Tel:13730918070

学位:工学博士

职称:教授

毕业院校:中国海洋大学

学科:

材料物理与化学

曾获荣誉:

2016-01-01 山东省有突出贡献的中青年专家

2012-11-07 山东省第三届优秀研究生指导教师

2011-04-01 青岛拔尖人才

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Defects level and internal electric field co-induced direct Z-scheme charge transfer for efficient photocatalytic H2 evolution over ZnIn2S4/In2Se3

关键字:HIGHLY EFFICIENT

摘要:Developing rational strategy on inducing efficient direct Z-scheme charge transfer for boosting photocatalytic H2 evolution is stilling a challenging work. In this work, sulfur-deficient ZnIn2S4/In2Se3 (Vs-ZIS/In2Se3) was fabricated, in which, photogenerated electrons in the defect level of Vs-ZIS migrated to the valence band of In2Se3, meanwhile, the interfacial internal electric field provided charge transfer driving force. Under the syn-ergistic effect of defect level and internal electric field, Z-scheme charge transfer was realized in Vs-ZIS/In2Se3, not only accelerated the separation of photocarriers, but also reserved a great deal of photogenerated electrons with intense reducing ability. As a result, the optimized Vs-ZIS/In2Se3 photocatalyst exhibited a visible light -driven H2 evolution rate of 36.53 mmol center dot g- 1 center dot h-1 and an AQE of 17.14 % at 420 nm, about 9.72 and 104.4 -folds of that of Vs-ZIS and In2Se3 respectively. This work donates an advanced pattern for inducing direct Z -scheme charge transfer through creating defect level and internal electric field.

卷号:613

期号:wu

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