无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2021, Vol. 53 ›› Issue (2): 100-104.doi: 10.11962/1006-4990.2020-0153

• 催化材料 • 上一篇    下一篇

氧化锌/辉沸石复合光催化材料的制备及其性能

杨重卿1(),袁方2,王翼1,赵生1,孙志明2   

  1. 1.甘肃建投矿业有限公司,甘肃兰州 730000
    2.中国矿业大学(北京)化学与环境工程学院
  • 收稿日期:2020-08-28 出版日期:2021-02-10 发布日期:2021-02-06
  • 作者简介:杨重卿(1992— ),男,硕士研究生,主要从事矿物材料领域研究;E-mail: 565440321@qq.com

Preparation and photocatalytic performance of ZnO/stellerite composite materials

Yang Zhongqing1(),Yuan Fang2,Wang Yi1,Zhao Sheng1,Sun Zhiming2   

  1. 1. Gansu Construction Investment(Holdings) Group Corporation Mining Co.Ltd.,Lanzhou 730000,China
    2. School of Chemical and Environment Engineering,China University of Mining and Technology(Beijing)
  • Received:2020-08-28 Online:2021-02-10 Published:2021-02-06

摘要:

以七水硫酸锌为前驱体,天然辉沸石为载体,以直接沉积法制备了纳米氧化锌/辉沸石复合材料。结合XRD、BET和SEM等表征手段对样品的物相组成、孔结构特性及微观形貌做了检测分析,并且探究了不同氧化锌负载量及煅烧温度对纳米氧化锌/辉沸石复合材料降解亚甲基蓝性能的影响规律。结果表明:复合材料实现了六方铅锌矿相氧化锌与辉沸石的紧密复合与有效分散,且该复合结构能够有效抑制光生载流子的复合,改善材料的吸附性能,进而提高材料的光催化效率;当复合材料中氧化锌负载量为30%(氧化锌与沸石的质量比)、煅烧温度为300 ℃时,材料对亚甲基蓝的光催化性能最优。

关键词: 纳米ZnO, 天然辉沸石, 光催化, 亚甲基蓝

Abstract:

Using ZnSO4·7H2O as precursor and stellerite as carrier,ZnO/stellerite photocatalytic composites were prepared by direct deposition.The phase compositions,aperture character and micromorphology of the as-prepared composites were char-acterized by XRD,BET and SEM,respectively.In addition,the effects of ZnO loading amounts and calcination temperatures on the degradation properties of methylene blue of nano-ZnO/stellerite photocatalytic composites were investigated.The re-sults showed that the composite material realized the close combination and effective dispersion of hexagonal lead zinc oxide and pyroxene,and the composites′ structure effectively inhibited the recombination of photogenerated-carrier,improved the adsorption performance and photocatalytic efficiency of the material.With 30%(mass ratio of ZnO to stellerite) ZnO loaded and calcination temperature of 300 ℃,the composite exhibited the best photocatalytic performance.

Key words: nano-ZnO, stellerite, photocatalysis, methylene blue

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