Powder Quartz/Nano-TiO2 Composite: Mechanochemical Preparation and Photocatalytic Degradation of Formaldehyde

作     者：WANG Binbin DENG Yuequan HE Ping 汪彬彬;邓跃全;何平;DONG Faqin;DONG Mengwei;DAI Ke;ZHENG Guangya;TIAN Hanxu;LI Guanghua

作者机构：State Key Laboratory Cultivation Base for Nonmetal Composites and Functional MaterialsMianyang 621010China School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang 621010China Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of EducationSouthwest University of Science and TechnologyMianyang 621010China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2018年第33卷第6期

页      面：1381-1386页

核心收录：

学科分类：08[工学] 

基　　金：Funded by the National Natural Science Foundation of China(No.41130746) 

主　　题：powder quartz nano-TiO2 interior paint formaldehyde 

摘      要：Powder quartz(PQ)/nano-TiO2composite was prepared by a mechanochemical method. Based on as-prepared PQ/nano-TiO2composite, we prepared interior paints and investigated the degradation efficiency of formaldehyde(DEF). Scanning electron microscopy showed that nano-TiO2got well dispersed by the adding of PQ. Thermogravimetric analysis indicated that the mass ratio of 4:1 was a relatively good proportion for the most production of PQ/nano-TiO2composite. Fourier transform-infrared spectrometry showed that the peak position of Ti-O-Si bond varied with the milling time. At the early stage, no characteristic peak of Ti-O-Si bond was observed, while at the later stage, new peaks at 902 cm-1and 937 cm-1appeared. Meanwhile, PQ/nano-TiO2composite-based interior paint exhibited significant DEF of 96.3% compared to that consisting of sole nanoTiO2of 92.0% under visible light illumination. As an abundant mineral resource, PQ would make interior paints with HCHO purifying effect much more efficient and cheaper.