Ag/TiO2纳米管阵列等离子体光催化剂的制备及性能研究

朱将1, 杜晶晶1*, 赵军伟2, 王可胜1, 程晓民1

化工新型材料 ›› 2019, Vol. 47 ›› Issue (2) : 122 -125.

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化工新型材料 ›› 2019, Vol. 47 ›› Issue (2) : 122-125.
新材料与新技术

Ag/TiO2纳米管阵列等离子体光催化剂的制备及性能研究

    朱将1, 杜晶晶1*, 赵军伟2, 王可胜1, 程晓民1
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Study on preparation and property of Ag/TiO2 nanotube arrays as plasmonic photocatalyst

  • Zhu Jiang1, Du Jingjing1, Zhao Junwei2, Wang Kesheng1, Cheng Xiaomin1
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摘要

以阳极氧化法制备的二氧化钛(TiO2)纳米管阵列为基底,利用化学还原法制备了不同银(Ag)含量的Ag/TiO2复合薄膜,并对其进行表征。结果表明,化学还原法有利于Ag纳米颗粒在TiO2纳米管上的均匀分布,Ag能产生表面等离子体共振吸收,有效增强TiO2纳米管阵列对可见光的吸收能力,Ag的修饰大幅度提高了TiO2纳米管阵列对气相苯的光催化降解活性,在光催化反应80min条件下,Ag含量为2%(wt,质量分数)制得的Ag/TiO2复合薄膜光催化活性最佳,对气相苯的降解率达到97%。

Abstract

The titanium(TiO2) nanotube arrays (TNTs) prepared by electrochemical anodic oxidation as substrates,a series of novel Ag/TiO2 composite films were prepared by chemical reduction,then the samples were characterized.The results showed that Ag nanoparticles were uniformly distributed upon the surface of TNTs by chemical reduction,the presence of Ag could result in surface plasmon absorption,effectively increasing the visible light absorption ability of TNTs.The photocatalysis results confirmed the benzene-degrading effectiveness of TNTs modified with Ag nanoparticles,especially,TNTs loaded 2wt% Ag showed the best activity with high benzene degradation rate (97%) in 80min photocatalytic reaction.

关键词

Ag/TiO2纳米管阵列 / 化学沉积 / 表面等离子体共振 / 光催化

Key words

Ag/TiO2 nanotube array / chemical reduction / surface plasmon resonance / photocatalysis

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Ag/TiO2纳米管阵列等离子体光催化剂的制备及性能研究[J]. 化工新型材料, 2019, 47(2): 122-125 DOI:

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基金资助

国家自然科学基金(51275251);宁波市自然科学基金(2015A610103);“王伟明助创基金”资助(2017019)

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