ZrO_(2)-TiO_(2)双负载型陶瓷废渣多孔材料光催化性能  

Photocatalytic Properties of Porcelain Tile Waste Porous Materials Loaded with ZrO_(2)and TiO_(2)

作　　者：赵亮 薛群虎[2] 华晓青 赵隆峰 黄谦 Zhao Liang;Xue Qunhu;Hua Xiaoqing;Zhao Longfeng;Huang Qian(School of Civil and Architectural Engineering,Yangtze Normal University,Chongqing 408100;College of Materials Science and Engineering,Xi’an University of Architecture and Technology,Xi’an,Shaanxi 710055)

机构地区：[1]长江师范学院土木建筑工程学院,重庆408100 [2]西安建筑科技大学材料科学与工程学院,陕西西安710055

出　　处：《非金属矿》2021年第3期87-89,共3页Non-Metallic Mines

基　　金：国家自然科学基金面上项目(51372193);重庆市教委科学技术研究项目(KJQN201901412);重庆市自然科学基金(cstc2019jcyj-msxmX0508);长江师范学院科研项目(2017XJQN17)。

摘　　要：以电石渣改性陶瓷抛光废渣基多孔材料为载体,采用浸渍法制备ZrO_(2)-TiO_(2)双负载型光催化剂。通过X射线衍射(XRD)仪、扫描电镜(SEM)、紫外-可见-近红外分光光度(UV-vis)计和降解试验对光催化剂矿物相组成、微观结构和光催化活性进行表征,研究了ZrO_(2)和TiO_(2)两种氧化物对催化剂组成、结构和光催化性能的影响。结果表明,浸渍负载后,纳米颗粒状ZrO_(2)和网状结构TiO_(2)以氧化物形式均匀负载于载体表面或嵌入载体孔道内部,未发生反应形成新的矿物相。相比单一负载ZrO_(2)或TiO_(2),双负载质量分数5%ZrO_(2)+5%TiO_(2)的催化剂试样具有更高的光催化活性,催化剂用量为2 mg/mL,降解时间为200 min,对20 mg/L盐酸素环素溶液的光催化降解率为90.2%。A ZrO_(2)-TiO_(2)co-loading photocatalyst was prepared by impregnation method using porcelain tile polishing waste-based porous materials modified by carbide slag as the carrier.The composition,structure and photocatalytic activity of the catalyst were characterized by XRD,SEM,UV-vis spectrophotometer and degradation test.The effects of ZrO_(2)and TiO_(2)oxides on the mineral phase composition,structure and photocatalytic performance of the catalyst were studied.The results show that after impregnation and loading,nano-particle ZrO_(2)and network TiO_(2)were uniformly loaded on the surface of the carrier or embedded in the pores of the carrier in the form of oxides,and no new mineral phase was formed.Compared with single-loaded ZrO_(2)or TiO_(2),the co-loaded with the quality content was 5%ZrO_(2)and 5%TiO_(2)had a higher photocatalytic degradation rate and activity.The photocatalytic degradation rate was 90.2%when the photocatalyst dosage was 2 mg/mL,the degradation time was 200 min,and the concentration of the tetracycline hydrochloride solution was 20 mg/L.

关 键 词：陶瓷抛光废渣 多孔材料 ZrO_(2)-TiO_(2)双负载 微观结构 光催化性能 

分 类 号：TQ174.9[化学工程—陶瓷工业]