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首页> 外文期刊>Optical Materials >Highly efficient flower-like Dy~(3+)-doped Bi_2MoO_6 photocatalyst under simulated sunlight: Design, fabrication and characterization
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Highly efficient flower-like Dy~(3+)-doped Bi_2MoO_6 photocatalyst under simulated sunlight: Design, fabrication and characterization

机译：高效的花朵Dy〜（3 +） - 掺杂Bi_2moo_6光催化剂在模拟阳光下：设计，制造和表征

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摘要

In this work, the flower-like Dy3+-doped Bi2MoO6 was successfully designed and synthesized by a two-step process involving solvothermal and calcination methods and was used as a photocatalyst to decontaminate Rhodamine B (RhB). Different doping ratios were investigated, and the results showed that 3 mol% Dy3+-doped Bi2MoO6 had excellent photocatalytic activity. The RhB (10 mg/L) degradation efficiency of 3 mol% Dy3+-doped Bi2MoO6 was close to 100% within 40 min under simulated sunlight, which was related to the small band gap energy (2.46 eV) of this photocatalyst. Meanwhile, the flower-like Dy3+-doped Bi2MoO6 provided more adsorption sites for photodegradation. The active species trapping experiments exhibited that superoxide radical (O-center dot(2)-), hole (h(+)) and hydroxyl radical ((OH)-O-center dot) played vital roles in purifying RhB. Based on a series of analyses, the Dy3+-doped Bi2MoO6 photocatalytic mechanism was proposed. This research suggests that the Dy3+-doped Bi2MoO6 possesses simple synthetic process and high photocatalytic performance, which shows a potential application for treating the organic contaminants in wastewater.
机译：在这项工作中，通过涉及溶剂热和煅烧方法的两步方法成功设计和合成了花样的DY3 + -Doped Bi2moo6，并用作光催化剂以去纳米甲胺酸甲胺B（RHB）。研究了不同的掺杂比，结果表明，3摩尔％DY3 +掺杂的BI2MOO6具有优异的光催化活性。在模拟阳光下，3mol％DY3 + -Doped Bi2Moo6的RHB（10mg / L）降解效率在40分钟内接近100％，这与该光催化剂的小带隙能量（2.46eV）有关。同时，花样的DY3 +掺杂的BI2MOO6提供了更多的吸附位点进行光降解。活性物质捕获实验表明，超氧化物自由基（O中心点（2） - ），孔（H（+））和羟基（（OH）-O中心点）在纯化RHB中起到重要的作用。基于一系列分析，提出了DY3 +掺杂的BI2MOO6光催化机理。该研究表明DY3 +掺杂的BI2MOO6具有简单的合成工艺和高光催化性能，这表明了治疗废水中有机污染物的潜在应用。

著录项

  • 来源
    《Optical Materials》 |2021年第6期|111094.1-111094.10|共10页
  • 作者

    Yang Zhengxin; Wang Ruiqi; Xu Longjun; Liu Chenglun; Cheng Yong; Jiang Zao; Liu Yanling; Zhang Teng; Li Jingya; Liu Xiuzhu;

  • 作者单位

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China|Chongqing Univ Coll Chem & Chem Engn Chongqing 400044 Peoples R China;

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

    Chongqing Univ State Key Lab Coal Mine Disaster Dynam & Control Chongqing 400044 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Dy3+ doping; Flower-like Bi2MoO6; Simulated sunlight; Rhodamine B; Photocatalytic performance;

    机译：DY3 +掺杂;花样BI2MOO6;模拟阳光;罗丹明B;光催化性能;

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