辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2018, Vol. 38 ›› Issue (02): 26-29.DOI: 10.3969/j.issn.1672-6952.2018.02.006

• 材料科学与新能源 • 上一篇    下一篇

贵金属纳米粒子负载钛酸锶光催化剂

董颖男1,田晓明2,刘 瑾1,李珊珊1,毕孝国1   

  1. (1.沈阳工程学院 新能源学院,辽宁 沈阳 110000; 2. 中国石油抚顺石化矿区服务事业部 燃气服务中心,辽宁 抚顺 113000)
  • 收稿日期:2017-12-12 修回日期:2018-03-17 出版日期:2018-04-26 发布日期:2018-04-25
  • 作者简介:董颖男(1980-),男,硕士,高级实验师,从事应用化学领域研究;E-mail:dyn4870@qq.com。
  • 基金资助:
    :辽宁省教育厅基金项目(ZXLGL-1614)。

Noble Metal Nanoparticles Supported Strontium Titanate Photocatalyst

Dong Yingnan1Tian Xiaoming2Liu Jin1Li Shanshan1Bi Xiaoguo1   

  1. (1.College of New Energy, Shenyang Institute of Engineering,Shenyang Liaoning 110000,China; 2.Gas Service Center, China Petroleum Fushun Petrochemical Mining Area Service Center,Fushun Liaoning 113000,China)
  • Received:2017-12-12 Revised:2018-03-17 Published:2018-04-26 Online:2018-04-25

摘要: 近年来, 钛酸锶作为一种新型光催化剂材料正逐渐成为研究热点。将银和钯纳米粒子按不同比例分别负载于钛酸锶粉体表面, 获得 M/SrTiO3催化剂( M=Ag、Pd) 。结果表明, 银和钯纳米粒子均可以有效促进钛酸锶的光催化降解甲基橙的活性, 贵金属的种类和负载量均对催化剂活性具有明显的影响。Ag质量分数为0. 2%的催化剂活性最高, 2 h甲基橙降解率达到了95.1%, 相较于纯钛酸锶粉体, 降解率提高了大约35%。Pd质量分数为 0.2%的催化剂活性, 相较于纯钛酸锶粉体降解率提高了大约2 6%。对贵金属促进钛酸锶光催化活性的机理和影响规律进行了简单讨论。

关键词: 贵金属纳米粒子, 钛酸锶, 光催化

Abstract: Recently, strontium titanate (SrTiO3) is becoming a research hotspot due to its potential application for a new photocatalytic material. In this paper, M/SrTiO3 catalysts (M=Ag, Pd) were prepared by loading Ag or Pd nanoparticles on the surface of strontium titanate powder in different proportions. The experimental results showed that both Ag and Pd nanoparticles could effectively promote the photocatalytic degradation of methyl orange by strontium titanate, and the type and load of noble metal have obvious effect on the activity of the catalyst. The catalyst had the highest methyl orange degradation rate of 95.1% after the reaction for 2 h when the Ag mass fraction was 0.2%. Notably, the degradation rate over the catalyst increased by about 35% comparing with pure strontium titanate powder. Similar to Ag/SrTiO3, the degradation rate with Pd mass fraction of 0.2% increased by about 26% comparing with that on pure strontium titanate powder. The mechanism and effect of noble metals on the photocatalytic performance of strontium titanate were briefly discussed.

Key words: Noble metal nanoparticles, Strontium titanate, Photocatalyst

引用本文

董颖男,田晓明,刘 瑾,李珊珊,毕孝国. 贵金属纳米粒子负载钛酸锶光催化剂[J]. 辽宁石油化工大学学报, 2018, 38(02): 26-29.

Dong Yingnan, Tian Xiaoming, Liu Jin, Li Shanshan, Bi Xiaoguo. Noble Metal Nanoparticles Supported Strontium Titanate Photocatalyst[J]. Journal of Liaoning Petrochemical University, 2018, 38(02): 26-29.

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