高温煅烧与球磨处理后二氧化钛光催化性能对比研究  

Comparative Study of Photocatalytic Properties of Titanium Dioxide After High Temperature Calcination and Ball Milling Treatment

作　　者：王生红 陈聪[1,4] 孙长飞 李登辉 翟振杰 王佳园 Wang Shenghong;Cheng Cong;Sun Changfei;Li Denghui;Zhai Zhenjie;Wang Jiayuan(School of Physics and Electronic Information Engineering,Qinghai Minzu University,Xining 810007,China;Asia Silicon(Qinghai)Company Limited,Xining 810007,China;Qinghai Provincial Key Laboratory of SiliconMaterials,Xining 810007,China;Institute for Carbon Peaking and Carbon Neutrality of Qinghai Minzu University,Xining 810007,China)

机构地区：[1]青海民族大学物理与电子信息工程学院,西宁810007 [2]亚洲硅业(青海)股份有限公司,西宁810007 [3]青海省硅材料重点实验室,西宁810007 [4]青海民族大学双碳研究院,西宁810007

出　　处：《青海科技》2023年第6期75-86,共12页Qinghai Science and Technology

基　　金：青海省科技厅应用基础项目(2021-ZJ-706);青海民族大学双碳专项科研项目重大项目(CPCN202305)。

摘　　要：随着全球经济的快速发展,环境污染特别是水污染问题日益严重,已严重威胁到人类健康和生态安全。二氧化钛因其独特的光催化特性不仅在环境净化和水资源处理方面有较大的应用潜力,同时也具备可持续能源转换的能力。文章旨在探究二氧化钛在高温煅烧和球磨处理两种工艺方法下的光催化性能,利用X射线衍射仪、紫外可见漫反射仪、紫外可见分光光度计和红外光谱仪,确定二氧化钛样品的物相结构,探究其在光催化降解有机污染物方面具有的性能。研发发现二氧化钛纳米颗粒经高温煅烧和高能球磨处理后,光催化性能均得到了提升。在光催化反应中,在光照条件下更有效地降解有机污染物,煅烧样品表现出更高的光催化活性,球磨样品则表面具有较强的惰性,在长期的反应过程中保持光催化活性,寿命长,具有较高的稳定性。Because of the rapid development of the global economy,environmental pollution,especially water pollution,has become increasingly serious,which has severely threatened human health and ecological safety.Duing to its unique photocatalytic properties,Titanium dioxide has not only a greater potential for application in environmental purification and water resources treatment,But also the ability of sustainable energy conversion.The purpose of this paper is to investigate the photocatalytic properties of titanium dioxide under two process methods,namely high temperature calcination and ball milling.X-ray diffractometer,UV-visible diffuse reflectometer,UV-visible spectrophotometer and infrared spectrometer were used to determine the physical structure of the titanium dioxide samples and investigate their performance in photocatalytic degradation of organic pollutants.The photocatalytic properties of titanium dioxide nanoparticles were both enhanced after high-temperature calcination and high-energy ball milling treatment.In the photocatalytic reaction,the organic pollutants were degraded more effectively under light conditions,and the calcined samples showed higher photocatalytic activity,while the ball-milled samples had strong inertness on the surface,which maintained the photocatalytic activity during the long-term reaction process,with a long lifespan and high stability.

关 键 词：二氧化钛 高温煅烧 高能球磨 光催化 亚甲基蓝 

分 类 号：O643.36[理学—物理化学]