钇氮共掺杂纳米TiO2光催化降解染料废水研究  

Study on photodegradation of methyl orange using co-doped TiO2 with Y3+ and N

作　　者：曹怀宝[1] 王剑波[2] 

机构地区：[1]常州纺织服装职业技术学院纺化系常州市新型纺织材料重点实验室,常州213100 [2]安徽理工大学,淮南232000

出　　处：《化工新型材料》2010年第8期97-98,113,共3页New Chemical Materials

摘　　要：以溶胶-凝胶法制备了钇、氮共掺杂纳米TiO2,对甲基橙染料废水进行了光催化降解实验。XRD、UV-VIS、FT-IR分析表明,500℃煅烧时得到的仍是锐钛矿型TiO2,晶粒变小;与单一的掺杂相比,共掺杂光催化活性有较大的提高,光响应范围得到很大拓展。Y3＋、N的掺量分别为0.8%和0.5%时,在1.5h内甲基橙的降解率达到99.8%。Titanium dioxide co-doped with Y3＋ and N was prepared by sol-gel method.The photocatalysis activity was evaluated by the photodegradation of methyl orange.Its physicochemical properties were characterized by XRD,UV-VIS and FT-IR.The results indicated that TiO2 was still anatase at 500℃.However,particles got smaller.comparing with simple doped TiO2,Photocatalysis activity of co-doped TiO2 increased remarkably,photoresponse extended distinctly the photo absorption fields.Photodegradation rate went up to 99.8% with 1.5h when addition amount of the doping Y3＋,N were separately 0.8% and 0.5%.

关 键 词：TIO2 光催化 共掺杂 

分 类 号：X703[环境科学与工程—环境工程]