摘要
采用水热法成功制备了TiO_(2)/MMT复合样品,通过XRD、FTIR、SEM、BET、UV-Vis DRS和PL对合成样品的结构和性质进行分析,以有机污染废水为目标污染物,对Ti O_(2)/MMT复合样品的光催化活性进行评价,结果表明,Ti O_(2)/MMT复合样品具有较大的比表面积和较高的光生载流子分离效率,经过5h紫外光照射后对亚甲基蓝、环氧沙星和石化废水降解率分别达到了96.9%、88.1%和83.9%,且具有良好的稳定性。活性物种实验表明,h^(+)、·OH和·O_(2)^(-)均为降解过程中的活性物种。
TiO_(2)/MMT composite was successfully prepared through hydrothermal method.The structure and properties of as-synthesized samples were analyzed by XRD,FTIR,SEM,BET,UV-Vis DRS and PL technique.The photocatalytic activity of TiO_(2)/MMT composite was evaluated using organic polluted wastewater as the target pollutant.The research results showed that TiO_(2)/MMT composite has large specific surface area and high photogenerated carrier separation efficiency.After 5 hours of UV irradiation,the degradation rates of methylene blue,epoxacin and petrochemical wastewater reached 96.9%,88.1%and 83.9%,respectively.At same times,TiO_(2)/MMT exhibited good stability.The active species experiment showed that h+,·OH and·O_(2)^(-) are all active species during degradation process.
作者
张秋明
ZHANG Qiu-ming(Shanghai Diyang Chemical Technology Co.,Ltd.,Shanghai 200135,China)
出处
《化学工程师》
2025年第4期19-23,7,共6页
Chemical Engineer
基金
上海市科技局重点攻关项目(SH202215616)。
作者简介
张秋明(1985-),男,汉族,山西洪洞人,高级工程师,2023年毕业于山西大学应用化学专业,博士研究生,主要研究方向:化工工艺及催化化学。
