A one-step nonaqueous sol–gel route to mixed-phase TiO2with enhanced photocatalytic degradation of Rhodamine B under visible light

CrystEngComm ◽  
2016 ◽  
Vol 18 (11) ◽  
pp. 1964-1975 ◽  
Author(s):  
Xu Liu ◽  
Yuxiu Li ◽  
Dongyang Deng ◽  
Nan Chen ◽  
Xinxin Xing ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Sol Gel ◽  
Mixed Phase ◽  
One Step

La2Zr2O7/rGO synthesized by one-step sol-gel method for photocatalytic degradation of tetracycline under visible-light

2020 ◽  
Vol 384 ◽  
pp. 123380 ◽  
Author(s):  
Zexiang Wang ◽  
Yuxia Wang ◽  
Lihui Huang ◽  
Xiaowei Liu ◽  
Yufei Han ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
One Step

Photocatalytic Degradation of Rhodamine B by TiO2/ZnO Nanofibers Under Visible Light Irradiation

2011 ◽  
Author(s):  
Carina Chun Pei ◽  
Wallace Woon-Fong Leung ◽  
Lijun Yang ◽  
Chi-ho Hung
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Sol Gel ◽  
Volume Ratio ◽  
Precursor Solution ◽  
Light Irradiation ◽  
Polluted Water ◽  
Electrospinning Technique

Photocatalytic reduction of contaminants in wastewater or polluted water can be enhanced by finding a suitable catalyst with property that utilizes an extended light adsorption spectrum, reducing the recombination of electron-hole pairs, and casting the catalyst into a form with large surface-to-volume ratio to be in contact with the contaminants. Based on these objectives, Zn-doped TiO2 nanoparticles with high photocatalytic activity were synthesized by the sol–gel assisted nozzle-less electrospinning technique followed by calcining the precursor Ti(OiPr)4/ZnAc/PVP nanofibers in air in the temperature range of 450–650°. The thermal decomposition behavior was studied by thermogravimetric analyser and differential scanning calorimeter (TGA–DSC), and the morphology and crystal structure were monitored by scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). With the different concentration of zinc acetate in the precursor solution, the diameter of fibers ranged from 80–130 nm. The photocatalytic degradation of rhodamine B dye under visible light irradiation was also studied. It is found that the photosensitized degradation activity can be optimized by doping an appropriate amount of Zn (0.30 wt. %). Hence, the enhanced photodegradation of dyes with a new photocatalyst nanofiber under visible irradiation can be realized, which can take better use of solar energy.

One-step MOF assisted synthesis of SmVO4 nanorods for photocatalytic degradation of tetracycline under visible light

2020 ◽  
Vol 276 ◽  
pp. 128213 ◽  
Author(s):  
Jie Chen ◽  
Xiaojun Xu ◽  
Li Feng ◽  
Aijiang He ◽  
Lixiu Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
One Step

Immobilization of Nano-TiO2 on Expanded Perlite for Photocatalytic Degradation of Rhodamine B

2011 ◽  
Vol 110-116 ◽  
pp. 3795-3800 ◽  
Author(s):  
Xiao Zhi Wang ◽  
Wei Wei Yong ◽  
Wei Qin Yin ◽  
Ke Feng ◽  
Rong Guo
Keyword(s):  
Catalytic Activity ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Degradation Kinetics ◽  
Irradiation Time ◽  
Sol Gel ◽  
Polluted Water ◽  
Order Kinetic ◽  
Expanded Perlite ◽  
Initial Concentration

Expanded perlite (EP) modified titanium dioxide (TiO2) with different loading times were prepared by Sol-Gel method. Photocatalytic degradation kinetics of Rhodamine B (RhB) in polluted water by the materials (EP-nanoTiO2), as well as the effects of different loading times and the initial concentration of RhB on photocatalysis rate were examined. The catalytic activity of the regenerated photocatalyst was also tested. The results showed that photocatalyst modified three times with TiO2had the highest catalytic activity. Degradation ratio of RhB by EP-nanoTiO2(modified three times) under irradiation for 6 h were 98.0%, 75.6% and 63.2% for 10 mg/L, 20 mg/L and 30 mg/L, respectively.The photocatalyst activity has little change after the five times recycling, and the degradation rate of RhB decreased less than 8%. The reaction of photocatalysis for RhB with irradiation time can be expressed as first-order kinetic mode within the initial concentration range of RhB between 10mg/L and 30 mg/L. EP-nanoTiO2photocatalyst has a higher activity and stability to degrade RhB in aqueous solution.

Synthesis of CdS/m-TiO2 mesoporous spheres and their application in photocatalytic degradation of rhodamine B under visible light

2017 ◽  
Vol 33 (3) ◽  
pp. 436-441 ◽  
Author(s):  
Shu Cui ◽  
Xuesong Li ◽  
Yanjuan Li ◽  
Haixin Zhao ◽  
Yuanyuan Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Rhodamine B
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