Hydrothermal synthesis and visible light photocatalysis of metal-doped titania nanoparticles

2007 ◽  
Vol 25 (2) ◽  
pp. 430 ◽  
Author(s):  
Tao-Yun Han ◽  
Chu-Fu Wu ◽  
Chien-Te Hsieh
Keyword(s):  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Titania Nanoparticles ◽  
Visible Light Photocatalysis ◽  
Doped Titania ◽  
Metal Doped

Degradation of gaseous formaldehyde via visible light photocatalysis using multi-element doped titania nanoparticles

Chemosphere ◽  
2017 ◽  
Vol 182 ◽  
pp. 174-182 ◽  
Author(s):  
Maricris T. Laciste ◽  
Mark Daniel G. de Luna ◽  
Nolan C. Tolosa ◽  
Ming-Chun Lu
Keyword(s):  
Visible Light ◽  
Titania Nanoparticles ◽  
Visible Light Photocatalysis ◽  
Doped Titania ◽  
Gaseous Formaldehyde

scholarly journals Arsenic Removal from Aqueous Solution Using Pure and Metal-Doped Titania Nanoparticles Coated on Glass Beads: Adsorption and Column Studies

2013 ◽  
Vol 2013 ◽  
pp. 1-17 ◽  
Author(s):  
M. Ihsan Danish ◽  
Ishtiaq A. Qazi ◽  
Akif Zeb ◽  
Amir Habib ◽  
M. Ali Awan ◽  
...  
Keyword(s):  
Arsenic Removal ◽  
Fixed Bed ◽  
Visible Region ◽  
Glass Beads ◽  
Operating Conditions ◽  
Titania Nanoparticles ◽  
World Population ◽  
Impregnation Method ◽  
Doped Titania ◽  
Metal Doped

Nanosized metal oxide, Titania, provides high surface area and specific affinity for the adsorption of heavy metals, including arsenic (As), which is posing a great threat to the world population due to its carcinogenic nature. In this study, As(III) adsorption was studied on pure and metal- (Ag- and Fe-) doped Titania nanoparticles. The nanoparticles were synthesized by liquid impregnation method with some modifications, with crystallite size in the range of 30 to 40 nm. Band gap analysis, using Kubelka-Munk function showed a shift of absorption band from UV to visible region for the metal-doped Titania. Effect of operational parameters like dose of nanoparticles, initial As(III) concentration, and pH was evaluated at 25°C. The data obtained gave a good fit with Langmuir and Freundlich isotherms and the adsorption was found to conform to pseudo-second-order kinetics. In batch studies, over 90% of arsenic removal was observed for both types of metal-doped Titania nanoparticles from a solution containing up to 2 ppm of the heavy metal. Fixed bed columns of nanoparticles, coated on glass beads, were used for As(III) removal under different operating conditions. Thomas and Yoon-Nelson models were applied to predict the breakthrough curves and to find the characteristic column parameters useful for process design. The columns were regenerated using 10% NaOH solution.

Hydrothermal synthesis of Cu2O with morphology evolution and its effect on visible-light photocatalysis

2021 ◽  
Vol 297 ◽  
pp. 129921
Author(s):  
Xudong Chen ◽  
Kangping Cui ◽  
Zibin Hai ◽  
Wu Kuang ◽  
Lingling Wang ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Visible Light Photocatalysis ◽  
Morphology Evolution

MICROWAVE-ASSISTED HYDROTHERMAL SYNTHESIS OF NITROGEN-DOPED TITANIA NANOPARTICLES

2008 ◽  
Vol 01 (03) ◽  
pp. 173-176 ◽  
Author(s):  
SHU YIN ◽  
BIN LIU ◽  
TSUGIO SATO
Keyword(s):  
Visible Light ◽  
Uv Light ◽  
Hydrothermal Process ◽  
Nitrogen Monoxide ◽  
High Specific Surface Area ◽  
Titania Nanoparticles ◽  
Photocatalytic Ability ◽  
Nitrogen Doped ◽  
Microwave Assisted ◽  
Doped Titania

Nitrogen-doped titania ( TiO 2-x N y) nanoparticles with excellent visible-light-reactive photocatalytic activity were successfully prepared by a microwave-assisted hydrothermal process. The obtained TiO 2-x N y powders showed high specific surface area, fine particle size and excellent photocatalytic ability for the oxidative destruction of nitrogen monoxide under irradiation of both visible-light (λ > 510 nm) and UV light (λ > 290 nm).

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