The sol-gel synthesis and photocatalytic activity of Gd-SiO2-TiO2 photocatalyst

2019 ◽  
Vol 733 ◽  
pp. 136676 ◽  
Author(s):  
Hongwei Feng ◽  
Hui Xu ◽  
Hongtu Feng ◽  
Ying Gao ◽  
Xinyuan Jin
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Tio2 Photocatalyst ◽  
Sol Gel Synthesis

Scalable Free-Radical Polymerization Based Sol-Gel Synthesis of SrTiO3 and its Photocatalytic Activity

2017 ◽  
Vol 2 (17) ◽  
pp. 4836-4842 ◽  
Author(s):  
Swapna Challagulla ◽  
Ravikiran Nagarjuna ◽  
Sounak Roy ◽  
Ramakrishnan Ganesan
Keyword(s):  
Photocatalytic Activity ◽  
Free Radical ◽  
Radical Polymerization ◽  
Sol Gel ◽  
Free Radical Polymerization ◽  
Sol Gel Synthesis

scholarly journals Microwave treated sol–gel synthesis and characterization of hybrid ZnS–RGO composites for efficient photodegradation of dyes

2017 ◽  
Vol 41 (4) ◽  
pp. 1723-1735 ◽  
Author(s):  
Lellala Kashinath ◽  
Keerthiraj Namratha ◽  
Shivanna Srikantaswamy ◽  
Ajayan Vinu ◽  
Kullaiah Byrappa
Keyword(s):  
Electron Transfer ◽  
Photocatalytic Activity ◽  
Sol Gel ◽  
Charge Recombination ◽  
Synthesis And Characterization ◽  
Excellent Photocatalytic Activity ◽  
Sol Gel Synthesis

Excellent photocatalytic activity by highly photo-responsive electron transfer from ZnS–RGO, and RGO acts as an electron reservoir and effectively suppresses charge recombination.

scholarly journals 1D TiO2 Nanostructures Prepared from Seeds Presenting Tailored TiO2 Crystalline Phases and Their Photocatalytic Activity for Escherichia coli in Water

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Julieta Cabrera ◽  
Dwight Acosta ◽  
Alcides López ◽  
Roberto J. Candal ◽  
Claudia Marchi ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Photocatalytic Activity ◽  
Bactericidal Activity ◽  
Sol Gel ◽  
Titanium Isopropoxide ◽  
E Coli ◽  
1D Nanostructures ◽  
Sol Gel Synthesis ◽  
Hydrolysis Of ◽  
Tio2 Nanostructures

TiO2 nanotubes were synthesized by alkaline hydrothermal treatment of TiO2 nanoparticles with a controlled proportion of anatase and rutile. Tailoring of TiO2 phases was achieved by adjusting the pH and type of acid used in the hydrolysis of titanium isopropoxide (first step in the sol-gel synthesis). The anatase proportion in the precursor nanoparticles was in the 3–100% range. Tube-like nanostructures were obtained with an anatase percentage of 18 or higher while flake-like shapes were obtained when rutile was dominant in the seed. After annealing at 400°C for 2 h, a fraction of nanotubes was conserved in all the samples but, depending on the anatase/rutile ratio in the starting material, spherical and rod-shaped structures were also observed. The photocatalytic activity of 1D nanostructures was evaluated by measuring the deactivation of E. coli in stirred water in the dark and under UV-A/B irradiation. Results show that in addition to the bactericidal activity of TiO2 under UV-A illumination, under dark conditions, the decrease in bacteria viability is ascribed to mechanical stress due to stirring.

Nonmetal–metal–semiconductor-promoted P/Ag/Ag2O/Ag3PO4/TiO2 photocatalyst with superior photocatalytic activity and stability

2015 ◽  
Vol 3 (34) ◽  
pp. 17858-17865 ◽  
Author(s):  
Xiaohong Hu ◽  
Qi Zhu ◽  
Xinlong Wang ◽  
Naoki Kawazoe ◽  
Yingnan Yang
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Light Irradiation ◽  
Solar Light ◽  
Tio2 Photocatalyst ◽  
Photocatalytic Ability ◽  
Composite Photocatalyst ◽  
Gel Method ◽  
Simulated Solar Light ◽  
Solar Light Irradiation

P/Ag/Ag2O/Ag3PO4/TiO2 composite photocatalyst has been successfully prepared by a sol–gel method. It shows highly enhanced photocatalytic ability and stability under simulated solar light irradiation.

Sol-gel synthesis of black ZnO/AuNPs nanocomposites for effective photocatalytic activity of methylene blue

2018 ◽  
Vol 14 (4) ◽  
pp. 241-244 ◽  
Author(s):  
Hong-yan Zhang ◽  
Shu-guo Yu ◽  
Ming-jing Bian
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Sol Gel ◽  
Sol Gel Synthesis

scholarly journals Influence of ThO2 on the photocatalytic activity of TiO2

2011 ◽  
Vol 9 (6) ◽  
pp. 1027-1038 ◽  
Author(s):  
Radina Kralchevska ◽  
Maria Milanova ◽  
Petya Kovacheva ◽  
Jovo Kolev ◽  
Georgi Avdeev ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Relative Content ◽  
X Ray Diffraction ◽  
Doping Agent ◽  
X Ray ◽  
Decay Products ◽  
Degradation Rate Constant ◽  
Main Factors ◽  
Sol Gel Synthesis

AbstractMicrocomposites consisting of TiO2 (or Ce-doped TiO2) and ThO2 (0.5–2% of the TiO2 mass) are produced by sol-gel synthesis of TiO2 in presence of ThO2. X-ray diffraction study reveals the effects of ThO2 (compared to the ThO2-free TiO2, obtained by the same method) on the anatase interplanar distances, crystallites size and phase composition. The photocatalytic tests in presence of the composites under UV irradiation reveal an increase of the Malachite Green degradation rate constant. The effect depends on the Th relative content, temperature of annealing of the catalyst and addition of other doping agent. The highest photocatalytic activity is observed for TiO2 obtained at 550°C and containing 1% ThO2. The composite exhibits activity in dark, also. The presence of Ce4+ ions is not an obligatory requirement for the realization of the ThO2 effect. The reported results suggest that the radioactivity of the Th and/or its decay products is one of the main factors responsible for the increased photocatalytic activity of TiO2.

scholarly journals Non-aqueous sol–gel synthesis through a low-temperature solvothermal process of anatase showing visible-light photocatalytic activity

RSC Advances ◽  
2014 ◽  
Vol 4 (87) ◽  
pp. 46762-46770 ◽  
Author(s):  
Mohamed Karmaoui ◽  
David M. Tobaldi ◽  
Andrijana Sever Skapin Andrijana Sever Skapin ◽  
Robert C. Pullar ◽  
Maria P. Seabra ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Low Temperature ◽  
Visible Light ◽  
Sol Gel ◽  
Solvothermal Process ◽  
One Pot ◽  
Visible Light Photocatalytic Activity ◽  
Sol Gel Synthesis ◽  
Visible Light Photocatalytic

A novel, facile method based on a non-aqueous sol–gel solvothermal process has been developed to synthesise spherical TiO2 nanoparticles (NPs) in one pot.

A dual chelating sol–gel synthesis of BaTiO3 nanoparticles with effective photocatalytic activity for removing humic acid from water

2013 ◽  
Vol 48 (2) ◽  
pp. 869-877 ◽  
Author(s):  
Peigong Wang ◽  
Caimei Fan ◽  
Yawen Wang ◽  
Guangyue Ding ◽  
Peihong Yuan
Keyword(s):  
Photocatalytic Activity ◽  
Humic Acid ◽  
Sol Gel ◽  
Sol Gel Synthesis ◽  
Batio3 Nanoparticles
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