Study on the Preparation of Sm Doped TiO2 Catalyst by Microwave Hydrothermal Method and its Photocatalytic Activity
- DOI
- 10.2991/emcs-17.2017.22How to use a DOI?
- Keywords
- Microwave hydrothermal method; Samarium doped; TiO2 photocatalyst; Microwave enhanced; Photocatalytic activity
- Abstract
Samarium doped TiO2 photocatalyst TiO2-Sm was prepared by microwave hydrothermal method using Samarium nitrate and tetrabutyl titanate as raw materials. Degradation of methyl orange was used to photocatalytic reaction of TiO2-Sm respectively under the conditions of visible light, microwave (MW), ultraviolet (UV), ultraviolet microwave (UV-MW) and ultraviolet microwave ultrasonic (UV-MW-UT). The TiO2-Ag was characterized by SEM, TG-DSC-DTG, IR and UV-Vis. The results showed that the optimal conditions of TiO2-Sm prepared by microwave hydrothermal method was n(Sm3+)/n(Ti4+)=0.003, microwave power 450 W, reacting time for 3 h at 170 and calcining time for 3 h at 700. The degradation rate was 11.51%, 96.83%, 99.5% and 100% respectively by MW, UV, UV-MW and UV-MW-UT for 35 min degradation. Sm doped had great influence on the crystal formation which widen the temperature range of catalyst from amorphous to anatase and suppressing the anatase structure into rutile structure. Moreover Sm doped produced more hydroxyl groups and could also widen the absorb range of ultraviolet and visible light which caused the enhancement of the photocatalytic activity of TiO2-Sm
- 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 Sm 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 - 110 EP - 117 SN - 2352-538X UR - https://doi.org/10.2991/emcs-17.2017.22 DO - 10.2991/emcs-17.2017.22 ID - Lu2017/03 ER -