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Ag/Al2O3(Li2O)/g-C3N4光催化乙醇制取环氧乙烷

  • 陈雅倩 ,
  • 李 娟 ,
  • 吴梁鹏 ,
  • 王 楠 ,
  • 李新军
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  • 1. 中国科学院广州能源研究所,广州 510640;
    2. 中国科学院可再生能源重点实验室,广州 510640;                           
    3. 广东省新能源和可再生能源研究开发与应用重点实验室,广州 510640;
    4. 中国科学院大学,北京 100049
陈雅倩(1992-),女,硕士研究生,主要从事太阳能光化学能转换研究。

收稿日期: 2018-01-05

  修回日期: 2018-03-06

  网络出版日期: 2018-06-29

基金资助

国家自然科学基金项目(51172233);
广东省自然科学基金项目(2015A030313715);
中国科学院可再生能源重点实验室基金项目(Y707j71001)

Ag/Al2O3(Li2O)/g-C3N4 for Photocatalytic Conversion of Ethanol into Ethylene Oxide

  • CHEN Ya-qian ,
  • LI Juan ,
  • WU Liang-peng ,
  • WANG Nan ,
  • LI Xin-jun
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  • 1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
    2. CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China;
    3. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China;
    4. University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2018-01-05

  Revised date: 2018-03-06

  Online published: 2018-06-29

摘要

本文制备了一系列Ag/Al2O3(Li2O)/g-C3N4复合催化剂,考察了其可见光催化乙醇制取环氧乙烷的性能。Li2O可调变Al2O3表面的酸性,从而降低了主要副产物乙醛的选择性。Ag/Al2O3(Li2O) 在g-C3N4上的负载量对产物环氧乙烷的选择性有较大影响,当Ag/Al2O3(Li2O) 负载量为5wt%时,乙醇具有较高的转换率,且环氧乙烷的选择性高达100%。

本文引用格式

陈雅倩 , 李 娟 , 吴梁鹏 , 王 楠 , 李新军 . Ag/Al2O3(Li2O)/g-C3N4光催化乙醇制取环氧乙烷[J]. 新能源进展, 2018 , 6(3) : 245 -248 . DOI: 10.3969/j.issn.2095-560X.2018.03.012

Abstract

A series of Ag/Al2O3(Li2O)/g-C3N4 catalysts were prepared, and their performances for photocatalytic conversion of ethanol into ethylene oxide (EO) were investigated under visible light irradiation. Li2O can adjust the acidity of Al2O3 surface, effectively, so as to reduce the selectivity of the main by-product acetaldehyde. The selectivity of EO was notably influenced by the loading amount of Ag/Al2O3(Li2O) on g-C3N4, which reaches 100% with high ethanol conversion when the loading amount of Ag/Al2O3(Li2O) was 5wt%.

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