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浙江大学学报(工学版)
浙江大学学报(工学版)  2021, Vol. 55 Issue (4): 713-719    DOI: 10.3785/j.issn.1008-973X.2021.04.013
土木工程     
空心玻璃微珠/纳米TiO2复合材料的制备与表征
严守靖1(),王洋洋1,*(),迟凤霞1,罗雪2
1. 浙江省交通运输科学研究院 道路工程研究所，浙江 杭州 310023
2. 浙江大学 建筑工程学院，浙江 杭州 310027
Characterization and synthesis of hollow glass microspheres/nano-TiO2 composite material
Shou-jing YAN1(),Yang-yang WANG1,*(),Feng-xia CHI1,Xue LUO2
1. Institute of Road Engineering, Zhejiang Scientific Research Institute of Transport, Hangzhou 310023, China
2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310027, China
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摘要：

为了获得催化活性高、抗磨耗性能强的光催化复合材料，研究通过冷-碱腐蚀处理手段和高温黏附技术，制备空心玻璃微珠-纳米TiO2光催复合材料. 利用扫描电子显微镜(SEM)、X射线衍射(XRD)和UV-Vis等设备，对样品进行表征. 以汽车尾气为降解对象，采用搓揉试验机和自制的环境测试系统，分别测试复合材料的抗磨耗性能与光催化效能. 结果表明，纳米TiO2能够较好地附着到空心玻璃微珠表面，空心玻璃微珠-纳米TiO2光催化复合材料相对于纯纳米TiO2具有更强的透光能力和光催化降解能力. 该复合材料对汽车尾气中的一氧化氮和二氧化氮均有显著的降解效果，氮氧化物的净化效果高于一氧化碳和二氧化硫，具有较好的抗磨耗能力.
关键词： 空心玻璃微珠;  纳米TiO2;  复合材料;  光催化性能    
Abstract:

A photocatalytic composite material was prepared by cold-alkali corrosion treatment and high-temperature adhesion technique in order to obtain a photocatalytic composite material with high catalytic activity and good wear resistance. Then scanning electron microscope (SEM), X-ray diffraction (XRD) and UV-Vis and other equipment were used to characterize the sample. The anti-wearing performance and photocatalytic of this composite material were tested by kneading machine and custom-designed environmental test setup, respectively, using exhaust gas of automobile. Results showed that nano-TiO2 embedded on the surface of hollow glass microspheres homogeneously. Hollow glass microspheres/nano-TiO2 composite photocatalyst has higher light transmission ability and degradation efficiency than pure nano-TiO2. The composite material has significant degradation effects on nitric oxide and nitrogen dioxide in automobile exhaust. The purification effect of nitrogen oxides is higher than carbon monoxide and sulfur dioxide, and has good anti-wearing ability.
Key words: hollow glass bead    nano-TiO2    composite material    photocatalytic property
收稿日期: 2020-02-25 出版日期: 2021-05-07
CLC:  O 649  
基金资助: 浙江省自然科学基金资助项目（LQY18E080001）；浙江省交通运输厅资助项目（2019054）
通讯作者: 王洋洋     E-mail: ysjgalaxy@163.com;profxnzhang@126.com
作者简介: 严守靖（1993—），男，硕士生，从事光催化降解材料与路面无损检测的研究. orcid.org/0000-0003-2951-7268.E-mail： ysjgalaxy@163.com
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严守靖
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引用本文:

严守靖,王洋洋,迟凤霞,罗雪. 空心玻璃微珠/纳米TiO2复合材料的制备与表征[J]. 浙江大学学报(工学版), 2021, 55(4): 713-719.

Shou-jing YAN,Yang-yang WANG,Feng-xia CHI,Xue LUO. Characterization and synthesis of hollow glass microspheres/nano-TiO2 composite material. Journal of ZheJiang University (Engineering Science), 2021, 55(4): 713-719.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2021.04.013    或    http://www.zjujournals.com/eng/CN/Y2021/V55/I4/713

组号 试件数量 $m$/g
BG 3 0
HGM 3 0
TiO2 3 1.601
HGM-TiO2 3 1.601
表 1  单位质量复合催化剂中纳米二氧化钛有效负载量
图 1  光催化性能测试过程
图 2  搓揉磨耗试验机
图 3  样品在不同放大倍率下的SEM图
图 4  不同样品的XRD图
图 5  空心玻璃微珠、纳米TiO2和空心玻璃微珠-纳米TiO2透光光谱
降解
对象 		纳米TiO2 空心玻璃微珠-纳米TiO2复合材料
${V_{\max }}$/(mg·m?3·min?1) $K$/% ${V_{\max }}$/(mg·m?3·min?1) $K$/%
NO 2.34 88.24 3.41 89.38
NO2 1.20 88.89 1.70 91.67
CO 17.1 9.47 22.90 14.52
SO2 1.29 9.70 1.51 12.00
表 2  单阶段汽车尾气光催化降解评价效果
图 6  NO、NO2、SO2、CO气体的降解效能
图 7  NO、NO2、SO2、CO气体的残余降解效能
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