scholarly journals Synthesis of V-modified TiO2 nanorod-aggregates by a facile microwave-assisted hydrothermal process and photocatalytic degradation towards PCP-Na under solar light

RSC Advances ◽  
2019 ◽  
Vol 9 (60) ◽  
pp. 34862-34871 ◽  
Author(s):  
Rong Han ◽  
Jinwen Liu ◽  
Nan Chen ◽  
Gang Wang ◽  
Yakai Guo ◽  
...  
Keyword(s):  
Solar Activity ◽  
Photocatalytic Degradation ◽  
Synergistic Effects ◽  
Hydrothermal Process ◽  
Red Shift ◽  
Solar Light ◽  
Hydrothermal Route ◽  
Charge Migration ◽  
Microwave Assisted ◽  
Microwave Hydrothermal

V-modified titania nanorod-aggregates were fabricated by microwave hydrothermal route. MWV05 exhibited optimal solar activity towards PCP-Na, due to red-shift by V-doping, carriers separation by V4+/V5+ synergistic effects and charge migration along the nanorods.

In situ anion exchange synthesis of In2S3/In(OH)3 heterostructures for efficient photocatalytic degradation of MO under solar light

2017 ◽  
Vol 41 (8) ◽  
pp. 3134-3142 ◽  
Author(s):  
Zheng Qiao ◽  
Tingjiang Yan ◽  
Wenjuan Li ◽  
Baibiao Huang
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Exchange Reaction ◽  
Anion Exchange ◽  
Hydrothermal Process ◽  
Solar Light ◽  
Excellent Photocatalytic Activity ◽  
Anion Exchange Reaction

In2S3/In(OH)3 heterostructures which were synthesized via an in situ anion exchange reaction and the hydrothermal process displayed excellent photocatalytic activity compared to pure components and the reported In2S3/In2O3.

Microwave hydrothermal synthesis, characterisation, and catalytic performance of Zn1−x MnxO in cellulose conversion

2014 ◽  
Vol 68 (9) ◽  
Author(s):  
Maria Bernardi ◽  
Vinícius Araújo ◽  
Caue Ribeiro ◽  
Waldir Avansi ◽  
Elson Longo ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Catalytic Performance ◽  
Acid Sites ◽  
Weak Acid ◽  
Spherical Nanoparticles ◽  
Hydrothermal Route ◽  
Cellulose Conversion ◽  
Microwave Assisted ◽  
Microwave Hydrothermal ◽  
Plate Morphology

AbstractWurtzite-type Zn1−x MnxO (x = 0, 0.03, 0.05, 0.07) nanostructures were successfully synthesised using a simple microwave-assisted hydrothermal route and their catalytic properties were investigated in the cellulose conversion. The morphology of the nanocatalysts is dopant-dependent. Pure ZnO presented multi-plate morphology with a flower-like shape of nanometric sizes, while the Zn0.97Mn0.03O sample is formed by nanoplates with the presence of spherical nanoparticles; the Zn0.95Mn0.05O and Zn0.93Mn0.07O samples are mainly formed by nanorods with the presence of a small quantity of spherical nanoparticles. The catalyst without Mn did not show any catalytic activity in the cellulose conversion. The Mn doping promoted an increase in the density of weak acid sites which, according to the catalytic results, favoured promotion of the reaction.

scholarly journals New Insights into Cd2+/Fe3+ Co-Doped BiOBr for Enhancing the Photocatalysis Efficiency of Dye Decomposition under Visible-Light

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 423
Author(s):  
Hong Sheng ◽  
Wei Wang ◽  
Rong Dai ◽  
Jing Ning ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Synergistic Effects ◽  
Hydrothermal Process ◽  
The Novel ◽  
Dye Decomposition ◽  
Microwave Hydrothermal ◽  
Photodegradation Mechanism ◽  
Ion Doping ◽  
Photocatalytic Activities ◽  
Impurity Bands ◽  
Co Doped

Uniform flowerlike microspheres Cd2+/Fe3+ co-doped BiOBr were prepared with the aid of the microwave hydrothermal process. The results indicate that the degradation performance of Bi1−xCdxOBr and Bi1−xFexOBr are 1.31 and 2.05 times that of BiOBr for RhB, respectively. Moreover, the novel Cd2+/Fe3+ co-doped BiOBr photocatalysts with ~0.42 eV impurity bands presented remarkably enhanced photocatalytic activities with being 3.10 times that of pure BiOBr, by achieving e−/h+ efficient separation and narrowed bandgap with the ions synergistic effect of Cd2+ and Fe3+. Based on DFT insights, the photodegradation mechanism was systematically studied that the conversion of multivalent Fe3+ ions promoted the production of •O2−, and Cd2+ ions worked as electron transfer mediators, which elucidated that the •O2− and h+VB mainly participated in the catalytic reaction. The experimental and theoretical results show that the synergistic effects of multi-ion doping have great potential in the field of photocatalysis.

scholarly journals Magnetic Field-Assisted Photocatalytic Degradation of Organic Pollutants over Bi1−xRxFeO3 (R = Ce, Tb; x = 0.00, 0.05, 0.10 and 0.15) Nanostructures

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4079
Author(s):  
Radhalayam Dhanalakshmi ◽  
Nambi Venkatesan Giridharan ◽  
Juliano C. Denardin
Keyword(s):  
Magnetic Field ◽  
Rare Earth ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Visible Light Irradiation ◽  
Organic Pollutant ◽  
Hydrothermal Process ◽  
Phenol Red ◽  
Magnetic Features

Magnetic-field-accelerated photocatalytic degradation of the phenol red (PR) as a model organic pollutant was studied using rare-earth elements modified BiFeO3 (Bi1−xRxFeO3 (R = Ce, Tb; x = 0.0, 0.05, 0.10 and 0.15); BFO: RE) nanostructures. The nanostructures were prepared via the hydrothermal process and their morphological, structural, functional, optical and magnetic features were investigated in detail. The effect of magnetic fields (MFs) on photocatalysis were examined by applying the different MFs under visible light irradiation. The enhanced photodegradation efficiencies were achieved by increasing the MF up to 0.5T and reduced at 0.7T for the compositions x = 0.10 in both Ce and Tb substituted BFO. Further, mineralization efficiencies of PR, reproducibility of MF-assisted photocatalysis, stability and recyclability of BFO: RE nanostructures were also tested.

Improved magnetic properties of Cr3+ doped SrFe12O19 synthesized via microwave hydrothermal route

2015 ◽  
Vol 63 ◽  
pp. 58-66 ◽  
Author(s):  
Sadhana Katlakunta ◽  
Sher Singh Meena ◽  
S. Srinath ◽  
M. Bououdina ◽  
R. Sandhya ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Hydrothermal Route ◽  
Microwave Hydrothermal

Amorphous magnesium phosphate flower-like hierarchical nanostructures: microwave-assisted rapid synthesis using fructose 1,6-bisphosphate trisodium salt as an organic phosphorus source and application in protein adsorption

RSC Advances ◽  
2015 ◽  
Vol 5 (19) ◽  
pp. 14906-14915 ◽  
Author(s):  
Chao Qi ◽  
Ying-Jie Zhu ◽  
Bing-Qiang Lu ◽  
Jin Wu ◽  
Feng Chen
Keyword(s):  
Organic Phosphorus ◽  
Magnesium Phosphate ◽  
Rapid Synthesis ◽  
Hierarchical Nanostructures ◽  
Microwave Assisted ◽  
Microwave Hydrothermal ◽  
Microwave Hydrothermal Method ◽  
Phosphorus Source ◽  
Trisodium Salt ◽  
Fructose 1,6 Bisphosphate

Amorphous magnesium phosphate flower-like hierarchical nanostructures are synthesized using fructose 1,6-bisphosphate trisodium salt by the microwave hydrothermal method.

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