Tuning the morphology, stability and photocatalytic activity of TiO{sub 2} nanocrystal colloids by tungsten doping

Journal Article · Sat Mar 01 04:00:00 EST 2014 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2013.12.052· OSTI ID:22348610

Xu, Haiping ^[1]; Liao, Jianhua ^[1]; Yuan, Shuai ^[1]; Zhao, Yin; Zhang, Meihong; Wang, Zhuyi ^[1]; Shi, Liyi ^[1]

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1. Research Center of Nanoscience and Nanotechnology, Shanghai University, 99 Shangda Road, Shanghai 200444 (China)

Graphical abstract: - Highlights: • W{sup 6+}-doped TiO{sub 2} nanocrystal colloids were prepared by hydrothermal methods. • The properties of TiO{sub 2} nanocrystal colloids can be tuned by tungsten doping. • W{sup 6+}-doped TiO{sub 2} nanocrystal colloids show higher stability and dispersity. • W{sup 6+}-doped TiO{sub 2} nanocrystal colloids show higher photocatalytic activity. - Abstract: The effects of tungsten doping on the morphology, stability and photocatalytic activity of TiO{sub 2} nanocrystal colloids were investigated. The nanostructure, chemical state of Ti, W, O, and the properties of tungsten doped TiO{sub 2} samples were investigated carefully by TEM, XRD, XPS, UV–vis, PL and photocatalytic degradation experiments. And the structure–activity relationship was discussed according to the analysis and measurement results. The analysis results reveal that the morphology, zeta potential and photocatalytic activity of TiO{sub 2} nanocrystals can be easily tuned by changing the tungsten doping concentration. The tungsten doped TiO{sub 2} colloid combines the characters of high dispersity and high photocatalytic activity.

• OSTI ID: 22348610
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 51; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
COLLOIDS
DOPED MATERIALS
HYDROTHERMAL SYNTHESIS
NANOSTRUCTURES
PHOTOCATALYSIS
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY
TUNGSTEN
TUNGSTEN IONS
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY