云南师范大学能源与环境科学学院葛文副教授等在国际知名期刊《Separation and Purification Technology》发表最新研究成果。

2023年9月17日，Elsevier 旗下国际著名期刊《Separation and Purification Technology》在线发表了云南师范大学能源与环境科学学院葛文副教授课题组的最新研究成果《Construction of Z-scheme CoFe2O4@ZnIn2S4 p-n heterojunction for enhanced photocatalytic hydrogen production》。云南师范大学能源与环境科学学院葛文副教授为第一作者兼通讯作者。

Abstract

The p-n heterojunction’s construction is considered a valid and prominent method to accelerate photogenerated carriers’ separation and transfer rate, enhancing the efficiency of photocatalytic hydrogen production. In this work, the core–shell CoFe2O4@ZnIn2S4 (CFO@ZIS) p-n heterojunction photocatalyst is designed and fabricated by growing ZIS nanosheets on yolk-shelled CFO surfaces by hydrothermal and calcination method followed by oil bath process for the first time. Notably, the CFO@ZIS-2 photocatalyst exhibits excellent cycle applicability and chemical stability and exhibits a remarkable hydrogen evolution rate of 1576.5 μmol∙g−1∙h−1 without Pt as a co-catalyst. However, the hydrogen evolution rates of pristine ZIS and CFO products are just 344.3 and 0 μmol∙g−1∙h−1, respectively. Furthermore, the analysis of structural, morphological, optical and photo/electrochemical characterizations further manifested the existence of p-n heterojunction in CFO@ZIS core–shell structure is beneficial to facilitate the separation and migration of photoinduced carriers. Meanwhile, the Z-Scheme mechanism of CFO@ZIS p-n heterojunction in photocatalytic hydrogen production has been discussed in detail. This work provides a feasible and resultful strategy to design the core–shell p-n heterojunction for the promotion of photocatalytic H2 production.

https://www.sciencedirect.com/science/article/pii/S1383586623019676

https://doi.org/10.1016/j.seppur.2023.125059

扩展阅读：

葛文履历

葛文

材料物理与化学，副教授，硕士生导师

主要招生专业：

新能源材料与器件、新能源科学与工程、材料学、化学等专业

主要研究方向：

无机纳米功能材料

学历及研究简历：

2010-09至2015-11，中国科学技术大学，材料物理与化学，博士

2006-09至2010-06，安徽师范大学，应用化学，学士

近三年代表论文和著作：

1. Ge Wen*; Liu Kong; Deng Shukang; Shen Lanxian; Yang Peizhi; Z-scheme g-C₃N₄/Bi₆Fe_1.5Co_0.5Ti₃O₁₈ heterojunctions with enhanced visible-light photocatalytic activity towards organics degradation, Applied Surface Science, 2022, 572: 151289.

2. Ge Wen*; Zhang Xiaohui; Ge Xiutao; Liu Kong; Synthesis of α-Fe₂O₃/SiO₂ nanocomposites for the enhancement of acetone sensing performance, Materials Research Bulletin, 2021, 141: 111379.

3. Wen Ge*; Kong Liu; Peizhi Yang; Shukang Deng; Lanxian Shen; Synthesis and upconversion luminescent properties of Bi₂MoO₆:20%Yb³⁺, 2%Er³⁺ hollow microsphere with different W⁶⁺ ions doping, Journal of Solid State Chemistry 297 (2021) 122064.

4. Ge Wen*; Liu Kong; Chen Tong; Deng Shukang; Shen Lanxian; Yang Peizhi; Liu Min; Lu Yalin; Tunable morphology, bandgap, photocatalysis and magnetic properties of Bi₆Fe₂Ti₃O₁₈ nanocrystals by doping cobalt ions, Journal of Alloys and Compounds, 2019, 799: 474-480.

5.Ge Wen*; Liu Kong; Deng Shukang; Shen Lanxian; Yang Peizhi; Liu Min; Lu Yalin ; Modification of Bi₆Fe_1.9 Co_0.1Ti₃O₁₈/SiO₂ /NaGdF₄ : Yb³⁺ ,Er³⁺ nanocomposites with different SiO₂ thicknesses for tunable upconversion luminescent and ferromagnetic properties, CrystEngComm, 2019, 21(29): 4329-4339.

近三年主持的国家级或百万以上其他项目：

国家自然科学基金委员会，青年项目，21701140，光-磁双功能复合纳米材料的制备及性能研究，2018-01至2020-12，25万元，主持

近三年主讲课程（研究生、本科生）：

本科生课程：《物理化学》、《大学化学》

联系方式：

 邮箱：gewen1024@126.com