【摘 要】
：
通过低温液相合成混合晶型纳米TiO2颗粒,研究纳米TiO2颗粒的光催化活性与颗粒晶相组成之间关系。用XRD对其进行表征,并在紫外光下,以甲基橙光催化降解为模型反应,研究了不同
论文部分内容阅读
通过低温液相合成混合晶型纳米TiO2颗粒,研究纳米TiO2颗粒的光催化活性与颗粒晶相组成之间关系。用XRD对其进行表征,并在紫外光下,以甲基橙光催化降解为模型反应,研究了不同晶相样品的光催化活性。结果表明:混合晶相中锐钛矿质量分数占69.8%、金红石质量分数占30.2%,TiO2光催化效用最好可达95.7%。
The relationship between the photocatalytic activity of nano-TiO2 particles and the crystalline phase composition of the nano-TiO2 particles was studied by liquid-phase synthesis of mixed nano-TiO2 particles at low temperature. The samples were characterized by XRD and the photocatalytic activity of the samples with different crystal phases was studied under UV light with methyl orange photocatalytic degradation as model reaction. The results show that the mass fraction of anatase in the mixed crystal phase is 69.8%, the content of rutile is 30.2%, and the best TiO2 photocatalytic activity is up to 95.7%.
其他文献
复习课是把所学知识概括归纳,使之网络化、系统化,但课堂气氛有些沉闷.为改变现状,我采用了“错题大搜捕”行动,充分调动了全体学生学习的积极性,发挥了学生的主体性、主动性
目的:观察Gradia微瓷聚合复合树脂嵌体修复牙体缺损的临床疗效.方法:53例后牙牙体缺损病例采用Gradia微瓷聚合复合树脂嵌体进行修复共125件.分别于修复后2、6、12、24个月进
We investigate the DO-D-O mixing through the doubly Cabibbo suppressed (DCS) channel DO→fO(980)K*O and its charge conjugate channel,in which the K*O meson is r
The experiment of this paper is the thermal test of the leakage current of silicon PIN detector.Raising temperature may cause the detector to increase leakage c
近年来由于城市建设、环境保护、节约能源的需要,热力管道直埋技术得到越来越多的应用.随着地下管道泄漏的产生,预防泄漏的问题也日益受到人们的重视.本文主要讲述了直埋热力
高中物理新课程的必修部分要求提升全体学生的科学素养,帮助他们了解自己的兴趣与发展潜能,为以后发展和选择打好基础;选修部分可以让学生体验探究过程,了解物理科学与人类社
本文中,笔者在山西戏剧职业学院二年级学生的英文阅读课堂上开展了元认知策略的讲解与培训,之后得到了学生对元认知策略培训效果的积极反馈。笔者提出的假设是,经过元认知策
详细论述了旧水泥路面加铺设计中反射裂缝的防治措施，对于不同的方法提出了其适用范围，为路面加铺设计提供了参考。
PI3K-mTOR(phosphoinositide-3一kinase/the mammalian target of rapamycin)信号通路在细胞的生长、分化、凋亡等方面都发挥着重要作用,文章对该通路的组成、调节、效应、抑
RF deflecting cavity can be used for bunch length measurement and is designed to diagnose the beam produced by the photocathode electron gun which was built at