水溶性TiO2离子液体纳米杂化材料的制备与应用

doi:10.15541/jim20170251

无机材料学报 ›› 2018, Vol. 33 ›› Issue (5): 577-581.DOI: 10.15541/jim20170251

所属专题：光催化材料与技术

水溶性TiO₂离子液体纳米杂化材料的制备与应用

张娇霞, 易靖, 焦月婷, 李世云, 史鑫兰, 孙凯

江苏科技大学材料科学与工程学院, 材料科学与工程国家级实验教学示范中心, 镇江 212003

收稿日期:2017-05-19 出版日期:2018-05-20 网络出版日期:2018-04-26
作者简介:张娇霞. E-mail: myzjx0359@163.com

Preparation and Application of Water-soluble TiO₂-ionic Liquids Hybrid Nanomaterials

ZHANG Jiao-Xia, YI Jing, JIAO Yue-Ting, LI Shi-Yun, SHI Xin-Lan, SUN Kai

National Demonstration Center for Experimental Materials Science and Engineering Education, School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China

Received:2017-05-19 Published:2018-05-20 Online:2018-04-26
About author:ZHANG Jiao-Xia(1980), female, associate professor. E-mail: myzjx0359@163.com
Supported by:
Natural Science Foundation of Jiangsu Province, China (Bk20140505);National Natural Science Foundation of China (51402132)

摘要/Abstract

摘要：

TiO₂纳米颗粒具有较强的氧化性, 作为光催化剂, 可以在阳光照射下减少或消除有机污染物。为提高TiO₂纳米颗粒分散性和溶解性, 研究其在不同领域, 特别是环境保护领域的应用, 本实验室用两步法制备得到黄色透明的水溶性TiO₂离子液体纳米杂化材料。在这个杂化体系中,有机磺酸基团作为冠层可以提供“自溶剂”成为TiO₂纳米粒子的分散体。分散实验表明：TiO₂离子液体纳米杂化材料表面的水溶性有机物在水中具有良好的溶解性, 容易去除, 可应用于家居装饰表面。光催化降解甲醛的研究表明：TiO₂离子液体纳米杂化流体具有良好的光催化性能。水溶性TiO₂离子液体纳米杂化材料有望成为未来环境保护的发展方向。

关键词: TiO₂离子液体, 杂化材料, 水溶性, 光催化

Abstract:

With unique electronic effect, TiO₂ nanoparticles can be used as photocatalysts to reduce or eliminate the organic pollutants only under irradiation of sunlight. It is, therefore, highly desirable to improve its dispersion and solubility to broaden its application in different fields especially in environmental conservation. Here provides a case of two-step method to prepare yellow transparent water-soluble TiO₂-ionic liquids hybrid nanomaterial. In this hybrid system, organic sulfonate groups as canopy provide “self-solvent” for the dispersion of the TiO₂ nanoparticles. This dispersion experiment results indicated that the water-soluble organic canopy in the TiO₂-ionic liquids hybrid nanomaterial offered good solubility in water and the TiO₂-ionic liquids hybrid nanomaterials used in-home decoration could be easily wiped away on the surface of furniture. Data from photocatalytic degradation efficiency for decomposing formaldehyde demonstrated that the hybrid nanofluids possessed excellent photocatalytic performance. The water-soluble TiO₂-ionic liquids hybrid nanomaterials could be a promising candidate for environmental conservation in the future.

Key words: TiO₂-ionic liquids, hybrid nanomaterials, water-soluble, photocatalytic

中图分类号:

TQ134

张娇霞, 易靖, 焦月婷, 李世云, 史鑫兰, 孙凯. 水溶性TiO₂离子液体纳米杂化材料的制备与应用[J]. 无机材料学报, 2018, 33(5): 577-581.

ZHANG Jiao-Xia, YI Jing, JIAO Yue-Ting, LI Shi-Yun, SHI Xin-Lan, SUN Kai. Preparation and Application of Water-soluble TiO₂-ionic Liquids Hybrid Nanomaterials[J]. Journal of Inorganic Materials, 2018, 33(5): 577-581.

图/表 6

Fig. 1 Synthetic process for the TiO2-ionic liquids hybrid nanomaterials

Fig. 2 FT-IR spectra for (A) PSNE and (B) the TiO2-ionic liquids hybrid nanomaterial

Fig. 3 TEM images of the TiO2-ionic liquids hybrid nanomaterial

Fig. 4 Rheological response of the TiO2-ionic liquids hybrid nanomaterial

Fig. 5 The curve of concentration versus time for hybrid nanomaterial in water

Fig. 6 The photocatalytic degradation efficiency of the pure TiO2 powder (a) and the water-soluble TiO2-ionic liquids hybrid nanomaterial (b) for decomposing formaldehyde

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水溶性TiO₂离子液体纳米杂化材料的制备与应用

Preparation and Application of Water-soluble TiO₂-ionic Liquids Hybrid Nanomaterials

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