硅藻土负载纳米氧化镍光催化处理废水COD  

Photocatalytic treatment of COD in wastewater by nano nickel oxide supported on diatomite

作　　者：卢朝阳 杨天隆 马浩然 LU Chaoyang;YANG Tianlong;MA Haoran(College of Chemistry,Chemical Engineering and Environment,Minnan Normal University,Zhangzhou,Fujian 363000,China)

机构地区：[1]闽南师范大学化学化工与环境学院,福建漳州363000

出　　处：《闽南师范大学学报（自然科学版）》2020年第4期43-48,共6页Journal of Minnan Normal University：Natural Science

基　　金：福建省科技厅引导性项目(2019H0024)。

摘　　要：用醋酸镍、氨水、PEG6000和硅藻土作为制备纳米材料的原材料,用溶胶凝胶法制备NiO@硅藻土.在不同条件下用其光催化降解生活污水,以COD降解率为指标,确定最佳实验参数.结果表明:在最佳条件下,NiO@硅藻土对COD的8 h降解率超过60%,延长降解时间,降解率可以接近80%.Nickel acetate,ammonia water,PEG6000 and diatomite were used as raw materials for preparing nanomaterials,and NiO@diatomite was prepared by sol-gel method.Under different conditions,the photocatalytic degradation of domestic sewage was carried out,and the best experimental parameters were determined with the COD degradation rate as the index.The results showed that under the optimal conditions,the degradation rate of COD by NiO@diatomite is over than 60%in 8 h,and the degradation rate can be close to 80% when the degradation time is prolonged.

关 键 词：硅藻土 纳米氧化镍 光催化降解 COD 

分 类 号：O69[理学—化学]