scholarly journals Hybrid CuxO–TiO2 porous hollow nanospheres: preparation, characterization and photocatalytic properties

RSC Advances ◽  
2017 ◽  
Vol 7 (50) ◽  
pp. 31619-31627 ◽  
Author(s):  
Yingqiao Xiang ◽  
Yingying Li ◽  
Xintong Zhang ◽  
Annan Zhou ◽  
Nan Jing ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Properties ◽  
Hollow Nanospheres ◽  
Photocatalytic Activities ◽  
Acetaldehyde Degradation

A series of CuxO–TiO2 hollow nanospherical composites with different mass percents of copper element were prepared, and the composites displayed high photocatalytic activities towards acetaldehyde degradation to CO2 under visible-light irradiations.

Hydrothermal Synthesis and Photocatalytic Activities of BiVO4 with Different Solvent

2013 ◽  
Vol 821-822 ◽  
pp. 80-84
Author(s):  
Bin Li ◽  
Xiao Gang Yang ◽  
Fang Lin Du
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Photocatalytic Oxidation ◽  
Hydrothermal Reaction ◽  
Raw Materials ◽  
Band Gap Energy ◽  
Photocatalytic Properties ◽  
X Ray Diffraction ◽  
Water As Solvent ◽  
Photocatalytic Activities

Bismuth-based oxides have attractive photocatalytic properties under visible light. Bismuth vanadate (BiVO4) particles as a visible light-responsive photocatalyst were prepared by a facile hydrothermal reaction method with the different solvent using Bi(NO3)3·5H2O and NH4VO3 as raw materials at 180°C for 18h. The as-prepared samples were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-vis absorption spectra (UV-vis). The photocatalytic activity of BiVO4 crystals was evaluated using the photocatalytic oxidation of methylene blue (MB) at room temperature under visible light irradiation. It was found that the morphology and the band gap adsorption edge of BiVO4 are different with the different solvent. The widest band gap energy of BiVO4 obtained with ethylene glycol as solvent is 2.405eV. In addition, the BiVO4 powders exhibit a certain photocatalytic properties to photodegrade MB and the maximum photocatalytic degradation rate is 34% using BiVO4 prepared with water as solvent for 2h.

Enhanced photocatalytic properties of biomimetic Ag/AgCl heterostructures

RSC Advances ◽  
2014 ◽  
Vol 4 (60) ◽  
pp. 31795-31798 ◽  
Author(s):  
Hongyan Hu ◽  
Zhengbo Jiao ◽  
Gongxuan Lu ◽  
Jinhua Ye ◽  
Yingpu Bi
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Organic Contaminants ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
High Yield ◽  
Green Leaves ◽  
Photocatalytic Activities ◽  
Ag Nanowires ◽  
Natural Architecture

Hierarchical Ag/AgCl hetero-structures have been fabricated in high-yield by copying the natural architecture of a branch with green leaves, and exhibit higher photocatalytic activities than Ag/AgCl nanowires, AgCl nanoparticles, Ag nanowires, and N-doped TiO2 for the degradation of organic contaminants under visible light irradiation.

Controllable Synthesis and Photocatalytic Activity of Ba0.6Mg0.4TiO3 Particles with Different Morphologies

2014 ◽  
Vol 955-959 ◽  
pp. 2267-2275 ◽  
Author(s):  
Rong Liu ◽  
Shi Duo Zhao ◽  
Xue Lin
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Hydrothermal Process ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
X Ray Diffraction ◽  
Photocatalytic Activities ◽  
Uv Visible ◽  
Xrd Patterns

Ba0.6Mg0.4TiO3 (BMT) particles with different morphologies were synthesized through hydrothermal method and their optical and photocatalytic properties were investigated. Their crystal structure and microstructures were characterized using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). XRD patterns demonstrate that the as-prepared samples are tetragonal structure. FESEM shows that BMT crystals can be fabricated in different morphologies by simply manipulating the reaction parameters of hydrothermal process. The UV-visible diffuse reflectance spectra (UV-vis DRS) reveal that the band gaps of BMT photocatalysts are about 2.37 - 2.51 eV. The as-prepared BMT photocatalysts exhibite higher photocatalytic activities in the degradation of methyl orange (MO) under visible light irradiation (λ > 420 nm) compared with traditional N-doped TiO2 (N-TiO2) and pure BaTiO3 (BTO). The high photocatalytic performance of BMT photocatalysts could be attributed to the recombination restraint of the e-/h+ pairs resulting from doping of Mg2+ ions. The influence of morphologies upon the photocatalytic properties of BMT was studied. Furthermore, BMT nanowires reveal the highest photocatalytic activity. Up to 94.0% MO is decolorized after visible light irradiation for 360 min.

Fabrication of Fe2TiO5/TiO2 nanoheterostructures with enhanced visible-light photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45343-45348 ◽  
Author(s):  
Zirui Lou ◽  
Yaguang Li ◽  
Hui Song ◽  
Zhizhen Ye ◽  
Liping Zhu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Uniform Distribution ◽  
Surface Area ◽  
Shell Thickness ◽  
Hollow Nanospheres ◽  
Visible Light Photocatalytic Activity ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic

In this work, we have fabricated Fe2TiO5/TiO2 heterostructures hollow nanospheres with 10 nm scale shell thickness, 220 m2 g−1 surface area and uniform distribution. Their visible photocatalytic activities for degrading pollutant are greatly enhanced.

Hydrothermal Synthesis and Photocatalytic Activities of Bi2WO6 with Different Surfactant

2013 ◽  
Vol 395-396 ◽  
pp. 741-745
Author(s):  
Bin Li ◽  
Xiao Gang Yang ◽  
Fang Lin Du
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Photocatalytic Oxidation ◽  
Hydrothermal Reaction ◽  
Raw Materials ◽  
Band Gap Energy ◽  
Photocatalytic Properties ◽  
X Ray Diffraction ◽  
Photocatalytic Activities ◽  
Surfactant Assisted

Bismuth-based oxides have attractive photocatalytic properties under visible light. Bismuth tungstate(Bi2WO6) particles as a visible light-responsive photocatalyst were prepared by a facile hydrothermal reaction method with the different surfactant assisted using Bi(NO3)3·5H2O and Na2WO4 as raw materials at 180°C for 24h. The as-prepared samples were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-vis absorption spectra (UV-vis). The photocatalytic activity of Bi2WO6 crystals was evaluated using the photocatalytic oxidation of rhodamine B (RhB) at room temperature under visible light irradiation. It was found that the morphology and the band gap adsorption edge of Bi2WO6 are different with the different surfactant assisted. The widest band gap energy of Bi2WO6 obtained with SDBS assisted is 2.624eV. In addition, the Bi2WO6 powders exhibit a certain photocatalytic properties to photodegrade RhB and the maximum photocatalytic degradation rate is 32.4% using Bi2WO6 prepared with PVP assisted for 2h.

ZnO nanorod/nickel phthalocyanine hierarchical hetero-nanostructures with superior visible light photocatalytic properties assisted by H2O2

RSC Advances ◽  
2015 ◽  
Vol 5 (106) ◽  
pp. 87233-87240 ◽  
Author(s):  
Xiuhua Wang ◽  
Jie Gao ◽  
Bingang Xu ◽  
Tao Hua ◽  
Houyong Xia
Keyword(s):  
Visible Light ◽  
Rhodamine B ◽  
Photocatalytic Properties ◽  
Zno Nanorod ◽  
Nickel Phthalocyanine ◽  
Photocatalytic Activities ◽  
Nanostructure Arrays ◽  
Visible Light Photocatalytic

ZnO-NR/TPNiPc hierarchical hetero-nanostructure arrays exhibited superior visible light photocatalytic activities in degradation of Rhodamine B assisted by H2O2.

A heterometallic D–A hybrid heterostructural framework with enhanced visible-light photocatalytic properties

CrystEngComm ◽  
2020 ◽  
Vol 22 (3) ◽  
pp. 420-424 ◽  
Author(s):  
Jian-Jun Liu ◽  
Ming-Hua You ◽  
Meng-Hua Li ◽  
Chang-Cang Huang ◽  
Mei-Jin Lin
Keyword(s):  
Visible Light ◽  
Organic Dyes ◽  
Photocatalytic Properties ◽  
Photocatalytic Activities ◽  
Lanthanide Cations ◽  
Visible Light Photocatalytic

A heterometallic D–A hybrid heterostructural framework from the ternary combination of CuI, lanthanide cations and viologen tectons exhibited enhanced photocatalytic activities for degradation of organic dyes.

Syntheses, crystal structures and photocatalytic properties of four hybrid iodoargentates with zero- and two-dimensional structures

CrystEngComm ◽  
2016 ◽  
Vol 18 (3) ◽  
pp. 427-436 ◽  
Author(s):  
Xiao-Wu Lei ◽  
Cheng-Yang Yue ◽  
Li-Juan Feng ◽  
Yong-Fang Han ◽  
Rong-Rong Meng ◽  
...  
Keyword(s):  
Visible Light ◽  
Crystal Structures ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
Two Dimensional ◽  
Photocatalytic Activities

Four new hybrid iodoargentates have been solvothermally prepared and structurally characterized. The title compounds possess semiconductor characterizations and efficient photocatalytic activities under visible light irradiation.

Bifunctional Ag/AgCl/α-Co (OH)2 Nanocomposite with Selective Adsorption and Photocatalytic Properties for Dyes Removal

2013 ◽  
Vol 815 ◽  
pp. 496-500 ◽  
Author(s):  
Jian Chao Sun ◽  
Juan Cheng ◽  
Hai Fan ◽  
Shi Yun Ai
Keyword(s):  
Visible Light ◽  
Anion Exchange ◽  
Organic Dyes ◽  
Selective Adsorption ◽  
Photocatalytic Properties ◽  
Precipitation Method ◽  
Adsorption Ability ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic ◽  
Dyes Removal

Bifunctional Ag/AgCl/α-Co (OH)2 nanocomposite with selective adsorption and visible-light photocatalytic activities was prepared by a facile anion-exchange precipitation method via the reaction of α-Co (OH)2 and AgNO3, during which Cl anions in the interlayer of α-Co (OH)2 are consequently released and reacted with Ag ions to form AgCl on the surface of α-Co (OH)2 nanosheets. The prepared Ag/AgCl/α-Co (OH)2 nanocomposite was used to adsorb and photodegrade the organic dyes from water. Results indicated that the nanocomposite not only has highly selective adsorption ability but shows good visible-light photocatalytic abilities to organic dyes.

Hierarchical CuS hollow nanospheres and their structure-enhanced visible light photocatalytic properties

CrystEngComm ◽  
2013 ◽  
Vol 15 (25) ◽  
pp. 5144 ◽  
Author(s):  
Xiangying Meng ◽  
Guohui Tian ◽  
Yajie Chen ◽  
Rutao Zhai ◽  
Juan Zhou ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Properties ◽  
Hollow Nanospheres ◽  
Visible Light Photocatalytic
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