Publikationsdatum:
2019
Beschreibung:
〈p〉Publication date: 1 April 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Materials Letters, Volume 240〈/p〉
〈p〉Author(s): Ying Wang, Hongbin Yu, Ying Lu, Jiao Qu, Suiyi Zhu, Mingxin Huo〈/p〉
〈div xml:lang="en"〉
〈h5〉Abstract〈/h5〉
〈div〉〈p〉A nano-composite comprised of Ti〈sup〉3+〈/sup〉-doped TiO〈sub〉2〈/sub〉 nanotubes (TNTs) and Ag〈sub〉3〈/sub〉PO〈sub〉4〈/sub〉 quantum dots was synthesized by a two-step method. With NaBH〈sub〉4〈/sub〉 as a reducing agent, Ti〈sup〉3+〈/sup〉 was introduced into TNTs. This significantly enhanced the adsorption capability and the absorption of visible light of TNTs, resulting in a better photocatalytic performance. Ag〈sub〉3〈/sub〉PO〈sub〉4〈/sub〉 quantum dots depositing on TNTs were synthesized via a precipitation method. By using this nano-composite as the photocatalyst, tetracycline (a typical model pollutant) could be degraded efficiently under visible light, and 90% of tetracycline was removed in 8 min. The rapid degradation of tetracycline might be attributed to both the introduction of Ti〈sup〉3+〈/sup〉 and the highly efficient separation of electrons and holes resulted from the photocatalytic mechanism of “Z” scheme.〈/p〉〈/div〉
〈/div〉
Print ISSN:
0167-577X
Digitale ISSN:
1873-4979
Thema:
Chemie und Pharmazie
,
Maschinenbau
