Activation of potassium peroxymonosulfate for rhodamine B photocatalytic degradation over visible-light-driven conjugated polyvinyl chloride/Bi2O3 hybrid structure

Abstract A novel binary BiSI/Ag2CO3 photocatalyst with excellent visible light-driven photocatalytic performance was prepared. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) and electrochemical impedance spectroscopy (EIS). The photocatalytic activity of the samples were evaluated by photocatalytic degradation of rhodamine B(RhB) under the irradiation of visible light. The results showed that the BiSI improves the photocatalytic activity of BiSI/Ag2CO3. Moreover, when the mass ratio of BiSI in BiSI/Ag2CO3 composites was 40%, the as-prepared BiSI/Ag2CO3 composite exhibited the best photocatalytic activity for degrading RhB. Finally, the possible mechanism for photodegradation over the BiSI/Ag2CO3 composites is also proposed.

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Visible-Light-Driven SO42-/TiO2 Photocatalyst Synthesized from Binh Dinh (Vietnam) Ilmenite Ore for Rhodamine B Degradation

Journal of Nanomaterials ◽

10.1155/2021/8873181 ◽

2021 ◽

Vol 2021 ◽

pp. 1-13

Author(s):

Tan Lam Nguyen ◽

Viet Dinh Quoc ◽

Thi Lan Nguyen ◽

Thi Thanh Thuy Le ◽

Thanh Khan Dinh ◽

...

Keyword(s):

Visible Light ◽

Specific Surface ◽

Photocatalytic Degradation ◽

Surface Area ◽

Rhodamine B ◽

Low Cost ◽

Tio2 Photocatalyst ◽

Tio2 Sample ◽

Sunlight Irradiation ◽

Visible Light Driven

A low-cost and simplistic approach for the synthesis of nanosized SO42-/TiO2 photocatalyst was successfully performed using Binh Dinh ilmenite ore and H2SO4 as titanium and sulfur sources, respectively. The experimental results indicate that the obtained material exists in the form of particles with a size of about 22 nm and has a specific surface area of about 49 m2 g-1. Compared with the TiO2 sample, the SO42-/TiO2 sample shows much higher photocatalytic degradation of rhodamine B (RhB) under the sunlight irradiation. In more details, the nanosized SO42-/TiO2 sample obtained is capable of completely decomposing RhB after 9 hours of irradiation by a 60 W LED lamp with a corresponding intensity of 9,500 Lux. However, when the SO42-/TiO2 is irradiated by the sunlight with the intensity of 65,000 Lux, it only takes 2 hours to completely decompose rhodamine B (RhB), facilitating the use of SO42-/TiO2 as a potential photocatalyst for the RhB photodegradation.

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Visible-light-driven photocatalytic degradation of rhodamine B by Ag2CO3/Bi2WO6 nanocomposites

Journal of the Iranian Chemical Society ◽

10.1007/s13738-019-01685-4 ◽

2019 ◽

Vol 16 (10) ◽

pp. 2169-2175 ◽

Cited By ~ 1

Author(s):

Anukorn Phuruangrat ◽

Phattranit Dumrongrojthanath ◽

Nuengruethai Ekthammathat ◽

Somchai Thongtem ◽

Titipun Thongtem

Keyword(s):

Visible Light ◽

Photocatalytic Degradation ◽

Rhodamine B ◽

Visible Light Driven

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Synthesis and Characterization of WO3and#183;0.33H2O/Ag2MoO4 Composites as a Visible-Light-Driven Photocatalyst for Rhodamine B and Levofloxacin Degradation

Journal of the chemical society of pakistan ◽

10.52568/000700 ◽

2020 ◽

Vol 42 (6) ◽

pp. 827-827

Author(s):

Yun Xuan Fu Yun Xuan Fu ◽

Yan Li Yan Li ◽

Tian Long Chang Tian Long Chang ◽

Xu Tao Liu Xu Tao Liu ◽

Xiang Feng Wu Xiang Feng Wu ◽

...

Keyword(s):

Visible Light ◽

Photocatalytic Degradation ◽

Rhodamine B ◽

Organic Dyes ◽

Degradation Process ◽

Molar Ratio ◽

Leading Role ◽

Visible Light Driven

Visible-light-driven WO3and#183;0.33H2O/Ag2MoO4 composites have been prepared by using an in-situ growth of Ag2MoO4 nanoparticles on the surfaces of WO3and#183;0.33H2O. The photocatalytic activities of the samples were studied by degradation of rhodamine B and levofloxacin dilute solution. The synergistic photocatalytic mechanism was also analyzed. Experimental results reveal that the as-developed hybrids have higher photocatalytic activity than pure samples. When the theoretical molar ratio of WO3and#183;0.33H2O to Na2MoO4and#183;2H2O is 1:0.15, the as-developed hybrids have the highest photocatalytic degradation efficiency of 99.0% for rhodamine B in 45 min and 40.9% for levofloxacin in 120 min. Furthermore, there are chemical bonds between WO3and#183;0.33H2O and Ag2MoO4. In addition, the super oxide radicals play the leading role during the photocatalytic degradation process of the samples. This work will provide reference for treatment of organic dyes and antibiotics pollution in water with using solar energy.

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