化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (12) : 259-263.

开发与应用

静电作用增强TiO₂-SiO₂复合气凝胶催化降解含油污水的研究

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TiO₂-SiO₂ aerogel reinforced by electrostatic interaction for the catalytic degradation of oily sewage

Li Hongyan^1,2, Song Limeng², Sun Cong², Li Ruyi², Fu Yongqiang², Yang Aiwu³, Liu Hongli²

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Received
2017-06-07
Issue Date	Revised Date
2019-01-07	2017-06-07

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摘要

为了提高TiO₂颗粒的分散性,增强其光催化降解油污性能,利用溶胶-凝胶工艺制备出TiO₂-SiO₂复合气凝胶。引入甲基丙烯酰氧乙基三甲基氯化铵(MTC)和甲基丙烯酸甲酯(MMA)单体,形成的聚合物以静电吸引形式包覆在气凝胶骨架上。采用Zeta电位、扫描电子显微镜和X射线衍射等手段对复合气凝胶进行了测试和表征。结果表明:TiO₂-SiO₂复合气凝胶骨架表面成功吸引了带正电的MTC,同时TiO₂颗粒均匀分散在气凝胶中,提高了TiO₂催化降解油污的效率。

Abstract

TiO₂-SiO₂ composite aerogels were prepared through sol-gel for improving the dispersion of TiO₂ particles and increasing the photocatalytic degradation property of oil contamination.Methacryloyloxyethyltrimethylammonium chloride(MTC) and methyl methacrylate(MMA) monomers were introduced,and the aerogel framework was coated by obtained polymer through electrostatic interaction.The aerogels were tested and characterized by Zeta potential,scanning electron microscopy(SEM),X-ray diffraction(XRD) and so on.The results showed that the positively charged MTC was absorbed successfully on the surface of aerogel skeleton through electrostatic interaction.The degradation efficiency of TiO₂ in the aerogels was improved because of TiO₂ particles was homogeneous dispersion.

关键词

溶胶-凝胶 / 复合气凝胶 / 静电吸引 / 催化降解

Key words

sol-gel / composite aerogel / electrostatic interaction / catalytic degradation

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静电作用增强TiO₂-SiO₂复合气凝胶催化降解含油污水的研究[J]. 化工新型材料, 2018, 46(12): 259-263 DOI:

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] 李兴旺,赵海雷,吕鹏鹏,等.TiO₂-SiO₂复合气凝胶的常压干燥制备及光催化降解含油污水活性[J].北京科技大学学报,2013,35(5):651-658.
[2] 梁文珍.SiO₂气凝胶/TiO₂复合光催化剂的制备及对水中有机污染物的降解研究[D].大连:大连理工大学,2011.
[3] 万东俨.Co-TiO₂-SiO₂气凝胶和ZIF-67(Co)的制备及其催化氧化对氯甲苯的研究[D].昆明:云南大学,2016.
[4] 梁文珍,王慧龙,姜文凤.太阳光下TiO₂/SiO₂气凝胶复合光催化剂光催化降解2,4-二硝基酚[J].环境科学学报,2011,31(6):1162-1167.
[5] Kim M I,Park D W,Park S W,et al.Selective qxidation of hydrogen sulfide containing excess water and ammonia over vanadia-titania aerogel catalysts[J].Catal Today,2006,111(3/4):212.
[6] Hegde M S,Nagaveni K,Roy S.Synthesis,structure and photocatalytic activity of nano TiO₂ and nano Ti_1-xM_xO_2-x(M=Cu,Fe,Pt,Pd,V,W,Ce,Zr)[J].Pramana,2005,65(4):641.
[7] Tseng Y H,Lin H Y,Kuo C S,et al.Thermostability of nano-TiO₂ and its photocatalytic activity[J].React Kinet Catal Lett,2006,89(1):63.
[8] 刘朝辉,苏勋家,侯根良.Si含量对TiO₂/SiO₂复合气凝胶结构及光催化性能的影响[J].无机材料学报,2010,25(9):911-915.
[9] Liu Z H,Su X J,Hou G L.Effects of silicon content on microstructure and photocatalytic activity of TiO₂/SiO₂ composite aerogel[J].J Inorg Mater,2010,25(9):911.
[10] Malinowska B,Walendziewski J,Robert D,et al.The study of photocatalytic activity of titania and titaniasilicaaerogel[J].Appl Catal B,2003,46(3):441.
[11] Yao N,Cao S L,Yeung K L.Mesoporous TiO₂-SiO₂ aerogels with hierarchal pore stuctures[J].Microporous Mesoporous Mater,2009,117(3):570.
[12] 刘朝辉,侯根良,苏勋家,等.热处理温度对TiO₂/SiO₂复合气凝胶光催化性能的影响[J].无机材料学报,2012,27(10):1179-1183.