g-C3N4/SiO2–HNb3O8 composites with enhanced photocatalytic activities for rhodamine B degradation under visible light

2011 ◽  
Vol 345 (1-2) ◽  
pp. 90-95 ◽  
Author(s):  
Huiqi Pan ◽  
Xiukai Li ◽  
Zongjin Zhuang ◽  
Chi Zhang
Keyword(s):  
Visible Light ◽  
Rhodamine B ◽  
Photocatalytic Activities

scholarly journals Synthesis and characterization of Z-scheme heterostructure CoWO4/g-C3N4 as a visible-light photocatalyst for removal of organic pollutant

2021 ◽  
Vol 10 (2) ◽  
pp. 59-63
Author(s):  
Hai Pham Viet ◽  
Anh Dao Thi Ngoc ◽  
Viet Nguyen Minh ◽  
Ha Tran Thi Viet ◽  
Dang Do Van ◽  
...  
Keyword(s):  
Visible Light ◽  
Rhodamine B ◽  
High Performance ◽  
Organic Pollutant ◽  
Photogenerated Electron ◽  
Morphological Properties ◽  
Electron Hole ◽  
Visible Light Photocatalyst ◽  
Photocatalytic Activities

In this study, direct Z–scheme heterostructure CoWO4/g-C3N4 was synthesized by a facile hydrothermal method. The structural, morphological properties of the prepared samples were characterised by XRD, SEM, UV–Vis and PL measurements. The as-obtained heterostructure CoWO4/g-C3N4 exhibited enhanced photocatalytic activities toward the degradation of Rhodamine B under visible light irradiation with 92% Rhodamine B removal after 80 minutes irritation, which exceeded pristine g-C3N4 and CoWO4. The enhanced photocatalytic performance ascribed to interfacial contact between g-C3N4 and CoWO4, thus further inhibiting the recombination of photogenerated electron/hole pairs. It is anticipated that the construction of Z–scheme heterostructure CoWO4/g-C3N4 is an effective strategy to develop high-performance photocatalysts for the degradation of organic pollutants in water.

Ag3 PO4 -MIL-53(Fe) Composites with Visible-Light-Enhanced Photocatalytic Activities for Rhodamine B Degradation

2018 ◽  
Vol 3 (28) ◽  
pp. 8045-8050 ◽  
Author(s):  
Yide Han ◽  
Huilei Shi ◽  
Chunpeng Bai ◽  
Lianxia Zhang ◽  
Junbiao Wu ◽  
...  
Keyword(s):  
Visible Light ◽  
Rhodamine B ◽  
Photocatalytic Activities

Preparation of Bi1-xLaxVO4 and its Photocatalytic Degradation on Rhodamine B

2016 ◽  
Vol 852 ◽  
pp. 1473-1476
Author(s):  
Yan Ding ◽  
Liang Fang Fu ◽  
Yu Huan Wang ◽  
Liang Chao Li ◽  
Juan Bi Li
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Degradation Rate ◽  
Light Sensitivity ◽  
Structure Morphology ◽  
Photocatalytic Activities ◽  
Testing Techniques ◽  
Composition Structure

A series of photocatalyst Bi1-xLaxVO4 (0.1, 0.3, 0.5, 0.7) powders were prepared by hydrothermal method. The composition, structure, morphology and photocatalytic activity of the samples were researched by means of modern testing techniques. Bi1-xLaxVO4 showed excellent visible-light sensitivity and photocatalytic activities. The degradation rate of sample with x = 0.5 on rhodamine B reached 90 %, which was much higher than that of pure BiVO4.

Enhanced Photocatalytic Performance of Iodine Doped Bi2WO6 Nanostructures under Visible-Light Irradiation

2013 ◽  
Vol 423-426 ◽  
pp. 163-166 ◽  
Author(s):  
Bao Wei Cao ◽  
Yun Hua Xu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrothermal Method ◽  
Absorption Spectra ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Red Shift ◽  
Light Irradiation ◽  
Photocatalytic Activities

Bi2WO6 doped with iodine ions were synthesized using hydrothermal method and their photocatalytic activities to degrade Rhodamine B (RhB) under visible-light was investigated. The successful incorporation of I ions in Bi2WO6 was proved by XRD and XPS. UV-vis absorption spectra results show that I ion was successfully doped into Bi2WO6 and a red shift for I-doped Bi2WO6 appeared when compared to pure Bi2WO6. The photocatalytic activities of the photocatalysts were evaluated by the decolorization of RhB under visible-light irradiation. The results showed that the photocatalytic activity of I-doped Bi2WO6 was much higher than the undoped Bi2WO6.

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.

Synthesis of γ-Bi2MoO6 Spheres and their Photocatalytic Activities for Degradation of Rhodamine B

2012 ◽  
Vol 476-478 ◽  
pp. 988-993 ◽  
Author(s):  
Shang Feng Wang ◽  
Jian Xu ◽  
Yuan Zhang ◽  
Chang Sheng Guo ◽  
Xiao Chen Li
Keyword(s):  
Visible Light ◽  
Rhodamine B ◽  
Diffuse Reflectance Spectroscopy ◽  
Photophysical Properties ◽  
Nitrogen Adsorption ◽  
X Ray Diffraction ◽  
Structure Morphology ◽  
Photocatalytic Activities ◽  
Visible Light Driven ◽  
Adsorption Desorption

A highly efficient γ-Bi2MoO6 photocatalyst was synthesized by a solvethermal method with the assistance of urea. The structure, morphology and photophysical properties of the Bi2MoO6 were characterized by X-ray diffraction, scanning electron microscope, UV–vis diffuse reflectance spectroscopy and nitrogen adsorption-desorption techniques. The photocatalytic efficiencies were evaluated by the degradation of rhodamine B (RhB) under visible-light irradiation, and the γ-Bi2MoO6 structures displayed significantly higher visible-light-driven photocatalytic activity in comparison to TiO2 nanoparticles.

Visible light induced photocatalytic degradation of rhodamine B by magnetic bentonite

2016 ◽  
Vol 73 (10) ◽  
pp. 2345-2352 ◽  
Author(s):  
Wenbing Li ◽  
Dong Wan ◽  
Guanghua Wang ◽  
Lulu Lu ◽  
Xiaobi Wei
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Fe3o4 Nanoparticles ◽  
Organic Dyes ◽  
Reaction Parameters ◽  
Water Contaminants ◽  
Photocatalytic Activities ◽  
Repeated Use

The photocatalytic activity of magnetic bentonite, Fe3O4 nanoparticles decorated Al-pillared bentonite (Fe3O4/Al-B), for the degradation of rhodamine B (RhB) in the presence of H2O2 under visible light (VL) was evaluated. The effects of different reaction parameters such as catalyst dose, dye concentration and externally added H2O2 were also investigated. The magnetic bentonite showed good photocatalytic activity, magnetic separability and stability for repeated use. More than 95% of 40 mg/L RhB was converted within 3 h under VL with a catalyst dose of 0.5 g/L. Suitable mechanisms have been proposed to account for the photocatalytic activities in the presence and absence of H2O2. The efficiency of H2O2 in VL process was much higher than that of the dark process. Results obtained in the current study may be useful to develop a suitable photocatalyst for photocatalytic remediation of different water contaminants including organic dyes.

Comparable Studies on Photocatalytic Activities of Ag3PO4 Microspheres and Polyhedrons

2014 ◽  
Vol 609-610 ◽  
pp. 335-340
Author(s):  
Bo Wang ◽  
Xiu Quan Gu
Keyword(s):  
Photocatalytic Activity ◽  
Surface Energy ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Chemical Method ◽  
Active Surface ◽  
Photocatalytic Activities ◽  
Uv Visible ◽  
Liquid Chemical

In this study, spherical and cubic Ag3PO4 microcrystals were prepared by a facile liquid chemical method and characterized by the XRD, SEM and UV-visible spectrometry. It was found that the as-prepared Ag3PO4 cubes showed the higher photocatalytic activity and stability than the sphere under visible-light irradiation in degrading Rhodamine B (RhB). The enhanced photocatalytic activity of the Ag3PO4 polyhedron might be attributed to a higher active surface energy of the former one.

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