摘要
采用溶胶凝胶法制备了Cu-TiO2/SiO2催化剂,用XPS、XRD、SEM和UV-Vis对催化剂进行表征与分析。以催化剂对水中硝酸盐氮的还原效果为评价标准,研究其催化性能。结果表明:本实验条件下,当Cu^2+、TiO2两者质量比是0.5%时所制备的催化剂光催化还原水中NO3-N效果最好,催化剂中的铜以CuO的状态存在,Cu掺杂不会严重影响催化剂中锐钛矿型TiO2晶型结构和粒径。
Cu-TiO2/SiO2 catalysts were prepared by the sol-gel dip-coating method which was characterized by XPS,XRD,SEM and UV-Vis method.Catalytic activities were evaluated with the photocatalytic reduction activity for removing NO3-N in water.Results indicated that the best photocatalytic reduction activity can be got when the nominal mass ratio of Cu^2+ to TiO2 was 0.5% under the conditions of this experiment.The copper in Cu-TiO2/SiO2 existed as CuO,the copper doping amount didn't effect the crystal structure and particle size of anatase TiO2.
作者
叶龙
YE Long(Guangdong Provincial Academy of Building Research Group Co.,Ltd.,Guangdong Guangzhou 510000,China)
出处
《广州化工》
CAS
2019年第14期54-56,共3页
GuangZhou Chemical Industry
基金
广东省住房城乡建设科技协同创新中心(2018B020207015)—专题四:广东农村污水处理设施建设标准体系研究及关键标准编制
