【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ZrO₂-TiO₂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ZrO₂和TiO₂两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ZrO₂和网状结构TiO₂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ZrO₂或TiO₂,双负载质量分数5%ZrO₂+5%TiO₂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%。更多还原

【Abstract】 A ZrO₂-TiO₂ 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 ZrO₂ and TiO₂ 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 ZrO₂ and network TiO₂ 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 ZrO₂ or TiO₂, the co-loaded with the quality content was 5% ZrO₂ and 5% TiO₂ 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.更多还原