Coassembly of Metal and Titanium Dioxide Nanocrystals Directed by Monolayered Block Copolymer Inverse Micelles for Enhanced Photocatalytic Performance

2012 ◽  
Vol 18 (46) ◽  
pp. 14695-14701 ◽  
Author(s):  
Himadri Acharya ◽  
Jinwoo Sung ◽  
Insung Bae ◽  
TaeHee Kim ◽  
Dong Ha Kim ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Block Copolymer ◽  
Photocatalytic Performance ◽  
Inverse Micelles

Improved antimicrobial efficacy and photocatalytic performance of gold decorated titanium dioxide nanohybrid

Optik ◽  
2020 ◽  
Vol 224 ◽  
pp. 165515
Author(s):  
Suresh Sagadevan ◽  
Selvaraj Vennila ◽  
Lakshmipathy Muthukrishnan ◽  
Baranya Murugan ◽  
J. Anita Lett ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Performance ◽  
Antimicrobial Efficacy

Preparation, Characterization and its Photocatalytic Performance of Rare Earth Element Erbium Doped with TiO2 Material

2012 ◽  
Vol 568 ◽  
pp. 380-383
Author(s):  
Song Tian Li ◽  
Guo Xu He ◽  
Wei Ma ◽  
Yan Hua Liu
Keyword(s):  
Titanium Dioxide ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Photocatalytic Performance ◽  
Sol Gel ◽  
Visible Region ◽  
Erbium Doped ◽  
Sol Gel Process ◽  
Reduce Energy Consumption

In order to expand photoresponse range of TiO2, reduce energy consumption of semiconductor material optical catalytic, certain amount of rare earth element Erbiun was doped during preparation of anatase titanium dioxide to improve the light absorption and photocatalysis efficiency. A series of rare earth element doped TiO2 material were prepared by sol-gel process, and characterized by means of UV-vis diffuse reflectance spectra. UV-vis absorption verified that doping of Er3+ enhanced absorptive capacity of catalyst in visible region. The photocatalytic performance of anatase titanium dioxide and rare earth element Erbiun doped with TiO2 to basic fuchsin were studied.

scholarly journals Rapid preparation of terbium-doped titanium dioxide nanoparticles and their enhanced photocatalytic performance

2019 ◽  
Vol 6 (10) ◽  
pp. 191077 ◽  
Author(s):  
Zhencui Wang ◽  
Yuechao Song ◽  
Xingfei Cai ◽  
Jun Zhang ◽  
Tianle Tang ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Photocatalytic Performance ◽  
Diffuse Reflectance Spectroscopy ◽  
Titanium Dioxide Nanoparticles ◽  
Earth Metal ◽  
Nitrate Hexahydrate ◽  
Doping Amount ◽  
X Ray ◽  
Low Toxicity

Further applications of photocatalysis were limited by the high recombination probability of photo-induced electron–hole pairs in traditional titanium dioxide nanoparticles (TiO 2 NPs). Herein, we modified them with rare earth metal via a facile sol–gel method, using tetrabutyl titanate as a precursor and terbium (III) nitrate hexahydrate as terbium (Tb) source. The resulting samples with different Tb doping amounts (from 0 to 2%) have been characterized by X-ray diffraction, UV–visible diffuse reflectance spectroscopy, X-ray photo-electron spectroscopy and a scanning electron microscope. The photocatalytic performance of Tb-doped TiO 2 was evaluated by the degradation of methylene blue. The effects of Tb doping amount and initial pH value of solution were investigated in detail. The composite with Tb doping amount of 1.0 wt% showed the highest photocatalytic performance. It exhibited approximately three times enhancement in photocatalytic activity with a reaction rate constant of 0.2314 h −1 when compared with that of commercial P25 (0.0827 h −1 ). In addition, it presented low toxicity on zebrafishes with 96 h-LC 50 of 23.2 mg l −1 , and has been proved to be reusable for at least four cycles without significant loss of photocatalytic activity. A probable photocatalytic mechanism of Tb-doped TiO 2 was proposed according to the active species trapping experiments. The high photocatalytic performance, excellent reusability and low toxicity of Tb-doped TiO 2 indicated that it is a promising candidate material in the future treatment of dye wastewater.

scholarly journals Preparation of inverse opal titanium dioxide for photocatalytic performance research

2019 ◽  
Vol 96 ◽  
pp. 109287 ◽  
Author(s):  
Yi Wan ◽  
Jinquan Wang ◽  
Xin Wang ◽  
Haiqing Xu ◽  
Saisai Yuan ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Performance ◽  
Inverse Opal ◽  
Performance Research

scholarly journals Facile synthesis of mesoporous titanium dioxide doped by Ag-coated graphene with enhanced visible-light photocatalytic performance for methylene blue degradation

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25314-25324 ◽  
Author(s):  
Lin Xiao ◽  
Li Youji ◽  
Chen Feitai ◽  
Xu Peng ◽  
Li Ming
Keyword(s):  
Methylene Blue ◽  
Titanium Dioxide ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Solvothermal Method ◽  
Sol Gel ◽  
Facile Synthesis ◽  
Methylene Blue Degradation ◽  
Visible Light Driven ◽  
Visible Light Photocatalytic

A highly efficient and elaborately structured visible-light-driven catalyst composed of mesoporous TiO2 (MT) doped with Ag+-coated graphene (MT-Ag/GR) has been successfully fabricated by a sol–gel and solvothermal method.

Aerodynamic levitated laser annealing method to defective titanium dioxide with enhanced photocatalytic performance

Nano Research ◽  
2016 ◽  
Vol 9 (12) ◽  
pp. 3839-3847 ◽  
Author(s):  
Hehe Wei ◽  
Xiaoguang Ma ◽  
Liu Gu ◽  
Jianqiang Li ◽  
Wenjie Si ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Performance ◽  
Laser Annealing ◽  
Annealing Method

Porous and worm-like titanium dioxide nanostructures from PS-b-PEO block copolymer micellar solutions

2011 ◽  
Vol 128 (1-2) ◽  
pp. 166-171 ◽  
Author(s):  
Dominique Scalarone ◽  
Jennifer Tata ◽  
Fabrizio Caldera ◽  
Massimo Lazzari ◽  
Oscar Chiantore
Keyword(s):  
Titanium Dioxide ◽  
Block Copolymer ◽  
Micellar Solutions
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