低温一次烧成的纳米TiO_(2)陶瓷的制备及其光催化性能  

Preparation and Photocatalytic Properties of Low-temperature Single-fired Nano TiO_2 Ceramics

作　　者：曹宁 周视玉 钟麒 黎荣奎 邹江文 王春泉 Cao Ning;Zhou Shiyu;Zhong Qi;Li Rongkui;Zou Jiangwen;Wang Chunquan(College of Chemical and Environmental Engineering,Hubei Hanjiang Normal University,Hubei,Shiyan,442000,China;Jiangxi Huanyu Ceramic Technology Research Co.Ltd,Jiangxi,Pingxiang,337000,China;Institute of Silicate Materials,Pingxiang General Institute of Testing and certification,Jiangxi,Pingxiang,337000,China)

机构地区：[1]汉江师范学院化学与环境工程学院,湖北十堰442000 [2]江西环宇工陶技术研究有限公司,江西萍乡337000 [3]萍乡市综合检验检测认证院硅酸盐研究所,江西萍乡337000

出　　处：《陶瓷》2023年第4期60-64,共5页Ceramics

基　　金：湖北省大学生创新训练项目(项目编号:S202110518001)。

摘　　要：为了实现光催化剂的绿色制备,笔者探索了以钙基膨润土、电气石等天然矿物为主要原料,以锐钛矿型钛白粉、钛溶胶为功能原料,采用混合法并以一次烧成工艺来制备光催化陶瓷的技术。实验发现,作为作为光催化功能组分的纳米TiO_(2)溶胶也是本催化剂的烧结助剂:它可使光催化材料于600℃烧结成为具有一定强度的固体材料。采用XRD、SEM、BET等对所制备的光催化剂做了表征;以亚甲基蓝(MB)、甲基橙(MO)溶液为模拟废液,测试了所制备的光催化剂的降解性能。实验结果显示,纳米TiO_(2)溶胶对光催化剂的光催化性能起决定性作用,且可以与钙基膨润土混合煅烧后形成具有光催化功能的CaTiO_(3);普通的锐钛矿型钛白粉对提高纳米TiO_(2)光催化剂有辅助作用;添加15%的电气石的光催化剂有最高的光催化效率。In order to realize the green preparation of photocatalyst,the technology of photocatalytic ceramics prepared by using calcium bentonite,tourmaline and other natural minerals as the main raw materials,anatase titanium dioxide and titanium sol as the functional raw materials was explored.The experiment found that as a photocatalytic functional component of nano-TiO_2 sol is also the catalyst sintering assistant:it can make the photocatalytic material sintered at 600 ℃ into a certain strength of solid materials.The prepared photocatalyst was characterized by XRD,SEM and BET.The degradation performance of the prepared photocatalyst was tested with methylene blue(MB) and methyl orange(MO) solutions as simulated waste liquid.The results show that nano-TiO_2 sol plays a decisive role in the photocatalytic performance of the photocatalyst,and it mixed with calcium bentonite can be calcined to synthesize CaTiO_3 with photocatalytic function.The common anatase titanium dioxide has an auxiliary effect on the improvement of nano-TiO_2 photocatalyst.The photocatalyst with 15% tourmaline had the highest photocatalytic efficiency.

关 键 词：光催化氧化 TiO_(2) 陶瓷 有机物降解 

分 类 号：X703[环境科学与工程—环境工程] TB321[一般工业技术—材料科学与工程]