Sol–gel synthesis of polyacrylamide-stannic arsenate nanocomposite ion exchanger: binary separations and enhanced photo-catalytic activity

The advantage of doping of TiO2 with copper has been utilized for enhanced degradation of pesticide under visible light irradiation. The sol–gel method has been undertaken for the synthesis of copper-doped TiO2 by varying the dopant loadings from 0.25 wt.% to 1.0 wt.% of Cu2+ . The doped samples were characterized by UV-Visible Diffuse Reflectance Spectroscopy (DRS), N2 adsorption–desorption (BET), X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Scanning Electron Microscopy (SEM), and Energy Dispersive Spectrometry (EDS). The photocatalytic activity of the catalyst was tested by degradation of dichlorvos under visible light illumination. The results found that 0.75 wt.% of Cu2+ doped nanocatalysts have better photo catalytic activity than the rest of percentages doped, undoped TiO2 and Degussa P25. The reduction of band gap was estimated and the influence of the process parameters on photo catalytic activity of the catalyst has been explained.

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Synthesis, characterization and photocatalytic activity of mesoporous Na-doped TiO2 nano-powder prepared via a solvent-controlled non-aqueous sol–gel route

RSC Advances ◽

10.1039/c7ra10108b ◽

2017 ◽

Vol 7 (85) ◽

pp. 54053-54062 ◽

Cited By ~ 23

Author(s):

Inderjeet Singh ◽

Balaji Birajdar

Keyword(s):

Photocatalytic Activity ◽

Catalytic Activity ◽

Surface Area ◽

Recombination Rate ◽

Sol Gel ◽

Electron Hole ◽

Photo Catalytic Activity ◽

Nano Powder ◽

Hole Recombination ◽

Enhanced Crystallinity

The superior photo-catalytic activity of mesoporous Na doped TiO2 attributed to the combined effect of electron–hole recombination rate, increased surface area and enhanced crystallinity.

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Sol-Gel auto-combustion, structural, photo-catalytic activity and UV-VIS study of Co1-xZnxFe2-yCeyO4 NPs (x = 0.3, y = 0.04)

10.1063/5.0061092 ◽

2021 ◽

Author(s):

Pradip D. Patil ◽

Swapnil A. Jadhav ◽

M. V. Khedkar ◽

A. V. Raut ◽

R. B. Kavade ◽

...

Keyword(s):

Catalytic Activity ◽

Sol Gel ◽

Photo Catalytic Activity ◽

Auto Combustion

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Sucrose-mediated sol–gel synthesis of nanosized pure and S-doped zirconia and its catalytic activity for the synthesis of acetyl salicylic acid

Journal of Industrial and Engineering Chemistry ◽

10.1016/j.jiec.2014.01.023 ◽

2014 ◽

Vol 20 (6) ◽

pp. 4215-4223 ◽

Cited By ~ 23

Author(s):

Ali Majedi ◽

Fatemeh Davar ◽

Alireza Abbasi

Keyword(s):

Salicylic Acid ◽

Catalytic Activity ◽

Sol Gel ◽

Acetyl Salicylic Acid ◽

Sol Gel Synthesis

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Preparation of the AC/TiO2 Composite Particles in Normal Temperature and Degradation of TNT

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.391-392.964 ◽

2011 ◽

Vol 391-392 ◽

pp. 964-967

Author(s):

Hai Ping Cui ◽

Jun Yan ◽

Shi Guo Du ◽

Ming Qiu Wang

Keyword(s):

Catalytic Activity ◽

Phytic Acid ◽

Physical Adsorption ◽

Sol Gel ◽

Composite Particles ◽

Synergic Effect ◽

Raman Analysis ◽

Photo Catalytic Activity ◽

Photo Catalysis ◽

Degradation Ratio

AC/TiO2 composite particles were prepared by sol-gel method in normal temperature. Three kinds of particles were obtained by adding Phytic Acid (ab. PA), Benzoyltrifluoroacetone (ab. BTA) and SnCl4 during the preparation. The photo catalytic activity and adsorptive capability of different particles were compared. Raman analysis showed TiO2 grain on the surface of the AC carrier was anatase. FE-SEM photos showed particles with PA were homogeneously coated by TiO2, but more fine TiO2 particles were formed with BTA. The results showed that the adding of PA and BTA helped to get fine grains. The degradation ratio of the TNT solution showed that the photo catalyses activity and adsorptive capability of all composite particles were higher than that of single AC, and the accumulated degradation ratio of TNT solution reached 99.3 % (repeated by 20 times). The degradation of single AC to TNT solution is thought mainly by physical adsorption, but for other composite particles the degradation is by both of the adsorption and photo catalysis. The interface between AC carrier and TiO2 crystal may be affected by PA or BTA, and helping to form synergic effect of AC and TiO2.

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