期刊
OPTIK
卷 157, 期 -, 页码 890-894出版社
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2017.11.185
关键词
TiO2 nanoparticles; Titanium butoxide; Methylene blue; Photocatalytic degradation
类别
资金
- Universidad Autonoma de Sinaloa, through of the DGIP [PROFAPI 2014/010, PROFAPI 2014/046]
- CONACYT
- Centro de Investigacion en Materiales Avanzados-Chihuahua, Mexico (CIMAV)
This work focuses on the studies of titanium butoxide (Ti(OBu)(4)) molar ratio effect in the TiO2 nanoparticles size via solvothermal method for methylene blue degradation. The materials used for the synthesis were: Ti(OBu)(4) as titanium source, anhydrous ethanol (EtOH) as solvent, and nitric acid (HNO3) as catalyst. The TiO2 nanoparticles demonstrate growth in a pure anatase phase tetragonal crystalline structure, where other phases or amorphous material is not present. The TiO2 nanoparticles reveal a rounded shaped and when the amount of titanium precursor increases, the nanoparticle size decreases. The photocatalytic degradation of methylene blue is influenced by the nanoparticle size where the material with a 2:30:2 molar ratio, Ti(OBu)(4):EtOH:HNO3, presents the minor nanoparticle size and a degradation similar to results obtained by commercial TiO2 (P25) at a time of 90 min. (C) 2017 Elsevier GmbH. All rights reserved.
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