高炉水淬渣负载铁掺杂TiO_2的表征及光催化性能研究  

Research on characterization and photocatalytic activity of Fe^(3+) doped TiO_2/WBFS

作　　者：张玉柱 韩妩媚 邢宏伟 杨立荣 刘志刚 

机构地区：[1]华北理工大学冶金与能源学院河北省现代冶金技术重点实验室河北省无机非金属材料重点实验室,唐山063009 [2]河钢集团唐钢公司,唐山063009

出　　处：《化工新型材料》2017年第7期223-225,228,共4页New Chemical Materials

基　　金：国家科技支撑计划项目(2012BAE09B03);河北省自然科学基金项目(E2015209317)

摘　　要：以高炉水淬渣(WBFS)为载体,采用溶胶-凝胶法制得高炉水淬渣负载铁掺杂TiO_2(Fe-TiO_2/WBFS)复合光催化材料。对不同铁离子掺杂量的Fe-TiO_2/WBFS进行表征。以亚甲基蓝溶液(MB)为降解目标,对制得的Fe-TiO_2/WBFS光催化材料进行光催化活性评价。结果表明,铁离子掺杂量为2%(摩尔百分数)时,其物相组成为锐钛矿与金红石的混合晶型,微观形貌呈多孔状。在太阳光照射180min时,Fe-TiO_2/WBFS对亚甲基蓝溶液的降解率达到95%,经5次重复利用后,Fe-TiO_2/WBFS光催化降解率仍可达到75%。The composite photocatalyst of Fe^3＋ doped TiO2/WBFS were prepared by sol-gel method using surface etching of WBFS as the carrier. The different contents of Fe^3＋doped TiO2/WBFS were characterized. The photocatalytic activity of Fe-TiO2/WBFS was evaluated using methylene blue（ MB） as degradation target. The results indicated that 2%（ mol） content of Fe^3＋doped TiO2/WBFS was consisted of anatase and rutile crystal form,and the surface morphology of Fe-TiO2/WBFS was porous. After illuminated by sunlight for 180 min,the degradation rate of MB reached to 95%. When Fe-TiO2/WBFS was used repeatedly for 5 times,the degradation rate of MB can reach to 75%.

关 键 词：光催化 二氧化钛 掺杂 高炉水淬渣 

分 类 号：O643.36[理学—物理化学]