交联聚两性离子液基材料增强TiO<sub>2</sub>光催化性能的研究

doi:10.11901/1005.3093.2015.511

材料研究学报

2016, Vol. 30

Issue (4): 307-313 DOI: 10.11901/1005.3093.2015.511

本期目录 | 过刊浏览

交联聚两性离子液基材料增强TiO₂光催化性能的研究

张娈娈¹, 高和军^1,²(

), 廖运文^1,²(

)

1. 化学合成与污染控制四川省重点实验室南充 637009
2. 西华师范大学应用化学研究所南充 637009

Enhancement of Photocatalytic Activity of TiO₂ with Cross-linked Poly (amphoteric ionic liquid)

ZHANG Luanluan^1,², GAO Hejun^1,^2,^**(

), LIAO Yunwen^1,^2,^**(

)

1. Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, Nanchong 637009, China
2. Institute of Applied Chemistry, China West Normal University, Nanchong 637009, China

引用本文:

张娈娈, 高和军, 廖运文. 交联聚两性离子液基材料增强TiO₂光催化性能的研究[J]. 材料研究学报, 2016, 30(4): 307-313.
Luanluan ZHANG, Hejun GAO, Yunwen LIAO. Enhancement of Photocatalytic Activity of TiO₂ with Cross-linked Poly (amphoteric ionic liquid)[J]. Chinese Journal of Materials Research, 2016, 30(4): 307-313.

全文: PDF(3343 KB) HTML

摘要:

在低温下, 通过溶胶-凝胶法(Sol-Gel)法成功将TiO₂负载到聚两性离子液体基材料(CPAIL)表面, 获得了高性能催化剂CPAIL@TiO₂。通过XRD, SEM, EDS, TEM, FT-IR, TGA, XPS和N₂吸脱附(BET)等方法对其结构进行了表征。结果表明, CPAIL@TiO₂为单一纯相锐钛矿结构, 包含有40%的TiO₂, 且其能够均匀分布在CPAIL@TiO₂中, 形成C—O—Ti键。在4次循环后, 对甲基橙(MO)和亚甲基蓝(MB)光催化降解程度分别可高达97%和55%, 表明CPAIL@TiO₂具有高效的催化性能和循环性能。

关键词 ：复合材料, 离子液体, 二氧化钛, 溶胶凝胶法, 聚合物, 光催化

Abstract：

A novel composite material CPAIL@TiO₂, which exhibits high photocatalytic activity, was prepared by a sol-gel method using raw materials of tetrabutoxytitanium and cross-linked poly(amphoteric ionic liquid) (CPAIL). The prepared CPAIL@TiO₂ was characterized by XRD, SEM, EDS, TEM, FT-IR, TGA and XPS. The results show that the mesoporous nanospheres of composite material CPAIL@TiO₂ contains ca 40% TiO₂, which is characterized as anatase. There existed chemical bands of C–O–Ti in the composite material. The CPAIL@TiO₂ shows a good photocatalytic activity and cycle performance. The photocatalytic degradation efficiencies of the CPAIL@TiO₂could reach 97% and 55% of those of pure TiO₂for solutions of methyl orange (MO) and methylene blue (MB) respectively. In general, the above superiority of the composite material CPAIL@TiO₂ demonstrates better prospects for applications in the field of environmental protection.

Key words： composites ionic liquid TiO2 sol-gel polymer photocatalysis

收稿日期: 2015-09-14

基金资助:四川省应用基础项目基金2015JY0042,四川省教育厅重点项目基金15ZA0147及西华师范大学基础项目基金14E015资助

作者简介: 本文联系人: 高和军; 廖运文, 教授

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https://www.cjmr.org/CN/10.11901/1005.3093.2015.511 或 https://www.cjmr.org/CN/Y2016/V30/I4/307

图1 CPAIL@TiO2的XRD谱

图2 TiO2和CPAIL@TiO2的SEM像

图3 CPAIL@TiO2的TEM像

图4 CPAIL@TiO2 和TiO2的热重分析曲线

图5 CPAIL@TiO2的XPS谱

图6 光催化剂的FT-IR谱

图7 CPAIL@TiO2的N2吸脱附曲线和BJH曲线

图8 MB随时间光降解过程

图9 MO随时间的光降解过程

图10 纯相TiO2与CPAIL@TiO2的固体紫外漫反射光谱

图11 MO和MB的光催化循环性能

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