摘要
采用溶胶-凝胶法成功制备CoTiO3纳米粒子样品,并采用X射线衍射(XRD)、扫描电子显微镜(SEM)以及紫外-可见光(UV-vis)反射等方法对样品进行表征与分析。以CoTiO3作为催化剂,过硫酸氢钾(PMS)为氧化剂,构建CoTiO3/PMS体系,研究CoTiO3用量、PMS浓度、反应温度和体系pH值对土霉素降解效果的影响。结果表明:当CoTiO3为0.2g,PMS浓度为5mmol/L,温度为45℃时,CoTiO3/PMS体系光照40min后土霉素的降解率最高可达94.9%,表现出明显的光催化-类Fenton协同作用。
CoTiO3 nanoparticles were successfully synthesized by sol-gel method, and the samples were characterized and anglyzed with X ray diffractometer(XRD), scanning electron microscope (SEM) and ultraviolet-visible (UV- vis)diffuse reflection, respectively. CoTiO3/PMS system was constructed with CoTiO3 as the catalyst, peroxymonosulfate (PMS) as oxidant. The effects of the amount of CoTiO3, PMS concentration, reaction temperature and pH value of the system on the degradation of oxytetracycline were investigated. The results show that when the amount of CoTiO3 is 0.2 g, PMS concentration is 5 mmol/L, and the temperature is 45 ℃, the degradation rate of oxytetracycline in CoTiO3/PMS system can reach 94.9% after 40 min of illumination, showing obvious synergistic effect of Fenton and photocatalysis.
作者
韩静
池方丽
冉松林
吕耀辉
孙雅馨
HAN Jin;CHI Fangli;RAN Songlin;LV Yaohui;SUN Yaxin(School of Materials Science and Engineering,Anhui University of Technology,Ma’anshan 243032,China)
出处
《安徽工业大学学报（自然科学版）》
CAS
2019年第1期40-45,共6页
Journal of Anhui University of Technology（Natural Science）
基金
安徽省自然科学基金项目(1808085ME138)
