化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (4) : 90-93.

新材料与新技术

Au/TiO₂薄膜的制备及等离子体光催化性能研究

作者信息 +

Preparation and plasmonic photocatalytic property of Au/TiO₂ thin film

Wang Leiyang, Jian Aoqun, Sang Shengbo, Duan Qianqian, Ji Jianlong, Zhang Qiang

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Received		Published
2017-01-10		2018-04-20
Issue Date	Revised Date
2018-05-17	2017-01-10

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摘要

以TiO₂薄膜为载体,采用真空镀金和退火法制备了载金(Au)TiO₂(Au/TiO₂)薄膜光催化材料,并对制得的Au/TiO₂薄膜光催化材料进行了测试。研究结果表明:Au/TiO₂薄膜表面形貌呈岛状分布,薄膜表面Au层厚度20～80nm,相比TiO₂薄膜,Au/TiO₂薄膜在全光谱下具有更高的催化活性,在300W氙灯光源,亚甲基蓝(MB)水溶液初始浓度为20mg/L,降解时间为4h条件下,Au/TiO₂薄膜对MB的降解率最大达到94%,具有较好的降解性能。

Abstract

Using titanium dioxide thin film as the carrier,Au/TiO₂ thin film was prepared via vacuum plating and annealing process,and the morphology and photocatalytic activity were characterized and studied.The results showed that gold nanoparticles with the height ranging from 20nm to 80nm were deposited on TiO₂ film,and its morphology was island-like distribution.Compared to TiO₂ film,Au/TiO₂ film had higher catalytic activity under full spectrum light.The result of photocatalytic test showed that the degradation rate of Au/TiO₂ film can reach 94% in 4 hour with 20mg/L MB initial concentration and 300W xenon light source,which indicated that Au/TiO₂ film had better degradation performance.

关键词

二氧化钛 / 金纳米颗粒 / Au/TiO₂复合薄膜 / 亚甲基蓝 / 局域表面等离子体共振

Key words

titanium dioxide / gold nanoparticles / Au/TiO₂ composite film / methylene blue / localized surface plasmon resonance(LSPR)

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Au/TiO₂薄膜的制备及等离子体光催化性能研究[J]. 化工新型材料, 2018, 46(4): 90-93 DOI:

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