摘要
有机染料广泛应用于各个行业,产生了大量印染废水。研究多孔吸附/催化双功能化材料,提高环境净化效率,降低二次污染成为前沿。本文通过在介孔SiO2材料中负载不同含量氧化铜,在不破坏介孔材料原有结构的基础上,提高材料对有机废水的吸附/降解能力。通过XRD、傅里叶红外等手段来研究材料的结构,以亚甲基蓝溶液为模拟有机废水,通过吸附/降解亚甲基蓝实验来测试材料的吸附/催化性能。实验结果表明,负载CuO铜以后样品的介孔结构保留完整;所有负载CuO后的样品均具有比介孔SiO2更好的吸附和催化性能;当Cu/Si摩尔比为0.02时,样品的吸附效果最佳;当Cu/Si摩尔比为0.05时,样品的催化降解效果最佳。
Widespread use of organic dyes in various industries leads to plenty of printing and dyeing wastewater.Much attention has been paid to the study of mesoporous adsorption/catalytic dual functionalization materials,which aims to improve the efficiency of environmental purification and reduce secondary pollution.In order to enhance the adsorption/degradation performance of this materials that applied to organic wastewater,different amounts of cupric oxide were modified on the mesoporous silica without destroying the original mesostructure.The structure of the materials were identified by means of XRD,Fourier transformed infrared,etc.Methylene blue solution was used as the simulated organic wastewater,and the adsorption/catalytic performance of the materials were measured by the adsorption/degradation of methylene blue subsequently.Results reveal that mesoporous structure is perfectly preserved after the modification by CuO.Adsorption and degradation tests indicate that CuO-modified samples are superior to mesoporous silica in both adsorption/catalytic performance.When the Cu/Si molar ratio is 0.02,the sample possesses the best adsorption capacity,when the Cu/Si molar ratio rises to 0.05,the sample exhibits the best catalytic degradation activity.
作者
赵舒鹏
刘谢
王东田
吴正颖
Zhao Shupeng;Liu Xie;Wang Dongtian;Wu Zhengying(Jiangsu Key Laboratory for Environment Functional Materials,Jiangsu,215009;School of Chemistry,Biology and Material Engineering,Suzhou University of Science and Technology,Jiangsu,215009)
出处
《当代化工研究》
2019年第13期1-4,共4页
Modern Chemical Research
基金
国家自然科学基金（51778392）
苏州市科技发展计划项目（SYG201818）
大学生创新创业训练计划项目（201910332024Z)
关键词
氧化铜
介孔氧化硅
吸附
催化降解
cupric oxide
mesoporous silica
adsorption
catalytic degradation
