介孔TiO_2纳米管的制备及其光催化性能
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- 英文论文题名：Preparation and Photocatalytic properties of Mesoporous TiO_2 Nanotubes
- 论文作者：肖虹 ; 李艳敬 ; 刘作花 ; 周国伟
- 英文论文作者：Hong Xiao ; Yan-jing Li ; Zuo-hua Liu ; Guo-wei Zhou ; Key Laboratory of Fine Chemicals in Universities of Shandong ; School of Chemistry and Pharmaceutical Engineering ; Qilu University of Technology
- 年：2016
- 作者机构：齐鲁工业大学化学与制药工程学院山东省高校轻工精细化学品重点实验室;
- 论文关键词：介孔TiO_2纳米管 ; 软模板 ; 光催化
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十七分会：纳米催化
- 语种：中文
- 分类号：O643.36;TB383.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十七分会 ; 纳米催化
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：268k
- 原文格式：D
- 会议级别：全国
摘要
TiO_2因其廉价、无毒、稳定性好及优异的化学物理性质被应用于多种领域,如:光催化、传感、锂电池和太阳能电池。常用TiO_2纳米管的制备方法有阳极氧化法、水热法、电化学沉积法等~([1,2])。本文介绍了一种简单的制备出介孔TiO_2纳米管的方法。以聚氧乙烯-聚氧丙烯-聚氧乙烯三嵌段共聚物为软模板,以TiOSO_4为前驱体,在混合溶剂热处理后得到大尺寸的介孔TiO_2纳米管,并用甲基橙(MO)对制备出的TiO_2纳米管进行光催化性能测试。SEM图(Fig.1)可以观察到TiO_2的管状形貌,长度约为1-3μm,直径约为500 nm。图2结果显示,TiO_2对MO有明显的降解效果,在降解时间为2.5 h时,降解率达到99.98%。
TiO_2 is widely used in the fields of photocatalysis, sensors, solar cells, and Li-ion batteries because of its low cost, nontoxicity, stability, and excellent chemicophysical properties~([1,2]). TiO_2 nanotubes have been fabricated through various processes, such as anodization method, hydrothermal method, and electrodeposition method. In this study, mesoporous TiO_2 nanotubes were fabricated using a novel solvothermal route, and using poly(ethyleneglycol)-block-poly(propy glycol)-block-poly(ethylene-glycol) as soft template, using TiOSO_4 as precursors. Photocatalytic properties of the mesoporous TiO_2 nanotubes were evaluated in term of the degradation of methyl orange(MO) under UV light. The SEM image shows mesoporous TiO_2 nanotubes with lengths ranging from about 1 mm to 3 mm and tube diameters about 500 nm(Fig. 1). As shown in Fig. 2, TiO_2 nanotubes exhibite high photocatalytic activity during the photodegradation of MO, and the degradation ratio of MO is about 99.98% under UV irradiation after 2.5 h.
TiO_2 is widely used in the fields of photocatalysis, sensors, solar cells, and Li-ion batteries because of its low cost, nontoxicity, stability, and excellent chemicophysical properties~([1,2]). TiO_2 nanotubes have been fabricated through various processes, such as anodization method, hydrothermal method, and electrodeposition method. In this study, mesoporous TiO_2 nanotubes were fabricated using a novel solvothermal route, and using poly(ethyleneglycol)-block-poly(propy glycol)-block-poly(ethylene-glycol) as soft template, using TiOSO_4 as precursors. Photocatalytic properties of the mesoporous TiO_2 nanotubes were evaluated in term of the degradation of methyl orange(MO) under UV light. The SEM image shows mesoporous TiO_2 nanotubes with lengths ranging from about 1 mm to 3 mm and tube diameters about 500 nm(Fig. 1). As shown in Fig. 2, TiO_2 nanotubes exhibite high photocatalytic activity during the photodegradation of MO, and the degradation ratio of MO is about 99.98% under UV irradiation after 2.5 h.
引文
[1]Xiao,H.;Guo,W.;Sun,B.;Pei,M.Electrochim.Acta.2016,190:104.
[2]Sun,B.;Zhou,G.;Zhang,Y.;Liu,R.Chem.l Eng.J.,2015,264:125.
[2]Sun,B.;Zhou,G.;Zhang,Y.;Liu,R.Chem.l Eng.J.,2015,264:125.