• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Lin, Hongxia (Lin, Hongxia.) | Liu, Yuxi (Liu, Yuxi.) | Deng, Jiguang (Deng, Jiguang.) | Zhang, Kunfeng (Zhang, Kunfeng.) | Zhang, Xing (Zhang, Xing.) | Xie, Shaohua (Xie, Shaohua.) | Zhao, Xingtian (Zhao, Xingtian.) | Yang, Jun (Yang, Jun.) | Han, Zhuo (Han, Zhuo.) | Dai, Hongxing (Dai, Hongxing.) (学者:戴洪兴)

收录:

EI Scopus SCIE PubMed CSCD

摘要:

Three-dimensionally ordered mesoporous Fe2O3 (meso-Fe2O3) and its supported Au, Pd, and Au-Pd alloy (xAuPdy/meso-Fe2O3; x = 0.08-0.72 wt.%; Pd/Au molar ratio (y) = 1.48-1.85) photocatalysts have been prepared via the KIT-6-templating and polyvinyl alcohol-protected reduction routes, respectively. Physical properties of the samples were characterized, and their photocatalytic activities were evaluated for the photocatalytic oxidation of acetone in the presence of a small amount of H2O2 under visible-light illumination. It was found that the meso-Fe2O3 was rhombohedral in crystal structure. The as-obtained samples displayed a high surface area of 111.0-140.8 m(2)/g and a bandgap energy of 1.98-2.12 eV. The Au, Pd and/or Au-Pd alloy nanoparticles (NPs) with a size of 3-4 nm were uniformly dispersed on the surface of the meso-Fe2O3 support. The 0.72 wt.% AuPd1.48/meso-Fe2O3 sample performed the best in the presence of 0.06 mol/L H2O2 aqueous solution, showing a 100% acetone conversion within 4 hr of visible-light illumination. It was concluded that the good performance of 0.72 wt.% AuPd1.48/meso-Fe2O3 for photocatalytic acetone oxidation was associated with its ordered mesoporous structure, high adsorbed oxygen species concentration, plasmonic resonance effect between AuPd 1.48 NPs and meso-Fe2O3, and effective separation of the photogenerated charge carriers. In addition, the introduction ofH(2)O(2) and the involvement of the photo-Fenton process also played important roles in enhancing the photocatalytic activity of 0.72 wt.% AuPd1.48/meso-Fe2O3. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B. V.

关键词:

Three-dimensionally ordered mesoporous Fe2O3 Photocatalytic oxidation Acetone degradation Gold-palladium alloy Supported noble metal photocatalyst

作者机构:

  • [ 1 ] [Lin, Hongxia]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, Yuxi]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China
  • [ 3 ] [Deng, Jiguang]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Kunfeng]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China
  • [ 5 ] [Zhang, Xing]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China
  • [ 6 ] [Xie, Shaohua]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China
  • [ 7 ] [Zhao, Xingtian]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China
  • [ 8 ] [Yang, Jun]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China
  • [ 9 ] [Han, Zhuo]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China
  • [ 10 ] [Dai, Hongxing]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China

通讯作者信息:

  • 邓积光 戴洪兴

    [Liu, Yuxi]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China;;[Deng, Jiguang]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China;;[Dai, Hongxing]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn,Beijing Key Lab Green Catal, Lab Catalysis Chem & Nanosci,Key Lab Beijing Reg, Beijing 100124, Peoples R China

查看成果更多字段

相关关键词:

来源 :

JOURNAL OF ENVIRONMENTAL SCIENCES

ISSN: 1001-0742

年份: 2018

卷: 70

页码: 74-86

6 . 9 0 0

JCR@2022

ESI学科: ENVIRONMENT/ECOLOGY;

ESI高被引阀值:203

被引次数:

WoS核心集被引频次: 13

SCOPUS被引频次: 16

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 1

在线人数/总访问数:416/4940333
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司