Study on the preparation of Ag doped TiO2 catalyst by microwave hydrothermal method and its photocatalytic activity
- DOI
- 10.2991/emcs-17.2017.160How to use a DOI?
- Keywords
- Microwave hydrothermal; Ag doping; TiO2 photocatalyst; Microwave and Ultrasound enhanced; Photocatalytic activity
- Abstract
Silver doped TiO2 catalyst TiO2-Ag was synthesized by microwave hydrothermal method when the optimal condition was selected with orthogonal and single factor tests. The photocatalytic activity of TiO2-Ag catalyst was further enhanced by the microwave and ultrasonic assisted with using methyl orange as pollutants. And the TiO2-Ag was characterized by the XRD, SEM, EDS, TG-DSC-DTG, BET and ICP-AES. The results showed that the optimal conditions of TiO2-Ag prepared by microwave hydrothermal method was n(Ag+)/n(Ti4+)=0.003, microwave power 600 W, reacting time for 3 h at 140 and calcining time for 3 h at 550 . The TiO2-Ag had higher photocatalytic activity and stability which get better degradation efficiency in a relatively short period of time for the degradation of organic pollutants when the microwave and ultrasonic assisted optimization condition. The structure characterization of the catalyst showed that the microwave hydrothermal synthesis of Ag doped TiO2 photocatalysts had OH multi-surface, high crystallinity and large surface area, and inhibited the phase transformation of TiO2 from anatase to rutile. At the same time, the doped catalyst prepared by microwave hydrothermal process was feasible method with high rate the use of drugs.
- Copyright
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Yuejie Lu AU - Xin Wang AU - Xianjun Bi PY - 2017/03 DA - 2017/03 TI - Study on the preparation of Ag doped TiO2 catalyst by microwave hydrothermal method and its photocatalytic activity BT - Proceedings of the 2017 7th International Conference on Education, Management, Computer and Society (EMCS 2017) PB - Atlantis Press SP - 839 EP - 845 SN - 2352-538X UR - https://doi.org/10.2991/emcs-17.2017.160 DO - 10.2991/emcs-17.2017.160 ID - Lu2017/03 ER -