Heterojunction Photocatalysis of ZnSe on F and N doped Nano-scaled TiO2
作者单位：Department of Electrical Engineering National Sun Yat-sen UniversityKaohsiung80424 Department of Electrical Engineering National Sun Yat-sen University Kaohsiung 80424
会议名称：《The Eighth Chinese Optoelectronics Symposium》
会议日期：2006年
学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
摘 要：High quality nano-scaled fluorine and nitrogen co-doped anatase phase titanium oxide can be obtained from the conversion of ammonium oxotrifluorotitanate by thermal treatment. The photocatalytic activity of titanium oxide treated at 800℃ shows the highest photocatalytic activity and is about 1.3 times of commercial P-25. The heterojunction of zinc selenide/titanium oxide prepared by metal organic vapor phase epitaxy shows 2.0 times the photocatalytic activities of commercial P-25. In this study, both nano-scaled titanium oxide and zinc selenide/titanium oxide heterojunction show one to one correspondence between carrier lifetime and photocatalytic activity.