Hydrothermal synthesis of two 2D uranyl coordination polymers: structure, luminescence, and photocatalytic degradation of rhodamine B

CrystEngComm ◽  
2020 ◽  
Vol 22 (35) ◽  
pp. 5716-5722 ◽  
Author(s):  
Xiaolan Tong ◽  
Shan Wang ◽  
HongXia Gao ◽  
Yingchong Ge ◽  
Jun Zuo ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Photocatalytic Degradation ◽  
Coordination Polymers ◽  
Rhodamine B ◽  
Equilibrium Time ◽  
Photocatalytic Activities

Two hydrothermal synthesized uranyl-organic coordination polymers showing effective photocatalytic activities for RhB degradation with quick equilibrium time in water.

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.

Hydrothermal synthesis of Sm-doped Bi2WO6 flower-like microspheres for photocatalytic degradation of rhodamine B

CrystEngComm ◽  
2019 ◽  
Vol 21 (41) ◽  
pp. 6208-6218 ◽  
Author(s):  
Xianghui Zhang ◽  
Mingming Zhang ◽  
Kaixuan Cao
Keyword(s):  
Hydrothermal Synthesis ◽  
Optical Absorption ◽  
Specific Surface ◽  
Photocatalytic Degradation ◽  
Surface Area ◽  
Specific Surface Area ◽  
Rhodamine B

Sm-doped Bi2WO6 with 3D flower-like microspheres structure shows extremely high photodegradation activity and superior stability and reusability because of the optimum optical absorption activity and the larger specific surface area.

Synthesis of Molecular Imprinted BiVO4 with Enhanced Adsorption and Photocatalytic Properties Towards Target Contaminants

2021 ◽  
Vol 21 (9) ◽  
pp. 4705-4714
Author(s):  
Wen-Juan Li ◽  
De-Fen Kong ◽  
Kai-Yue Li ◽  
Ting-Jiang Yan ◽  
De-Sheng Kong
Keyword(s):  
Hydrothermal Synthesis ◽  
Molecular Imprinting ◽  
Rhodamine B ◽  
Crucial Role ◽  
Heterogeneous Photocatalysis ◽  
Synthesis Process ◽  
Electron Hole ◽  
Promising Direction ◽  
Photocatalytic Activities ◽  
Enhanced Adsorption

Selective photocatalysis is a very promising direction to improve the activities of photocatalysts. Combining the technique of molecular imprinting (MIP) with heterogeneous photocatalysis can be an appealing approach to achieve our aim. Herein, using the MIP technique, the monoclinic MIP-BiVO4 was successfully synthesized by the presence of rhodamine B (RhB) during the hydrothermal synthesis. The synthesized MIP-BiVO4 possessed better adsorptive and photocatalytic activities than pristine BiVO4. RhB added in the synthesis process worked as a template and served a crucial role in the formation of the MIP-BiVO4 morphology. The photoelectrochemical analysis verified the superiority of MIP-BiVO4 sample in the transfer and separation of the electron–hole pairs. Holes played the most crucial role in the degradation of the pollutants. The effective approach combining MIP technique in the synthesis of photocatalysts would provide some guidance to selective photocatalysis field for designing and synthesizing highly efficient photocatalysts.

Hydrothermal Synthesis of Cubic Mesocrystal CeO2 for Visible Photocatalytic Degradation of Rhodamine B

2015 ◽  
Vol 25 (3) ◽  
pp. 144-148
Author(s):  
Hexiang Yang ◽  
Mengkai Zhou ◽  
Zeda Meng ◽  
Lei Zhu ◽  
Zhigang Chen ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Photocatalytic Degradation ◽  
Rhodamine B

Microwave-Assisted Hydrothermal Synthesis of Ag/BiVO4 Architecture with Enhanced Photocatalytic Activities

2012 ◽  
Vol 490-495 ◽  
pp. 3464-3467 ◽  
Author(s):  
Li Guo ◽  
Dan Jun Wang ◽  
Feng Fu ◽  
Xiao Dan Qiang ◽  
Yuan Yang
Keyword(s):  
Photocatalytic Activity ◽  
Phase Composition ◽  
Hydrothermal Synthesis ◽  
Rhodamine B ◽  
Hydrothermal Process ◽  
Absorption Property ◽  
Microwave Assisted ◽  
Degradation Ratio ◽  
Photocatalytic Activities ◽  
Activity Enhancement

BiVO4 microcrystals were prepared via a microwave-assisted hydrothermal process. Ag loaded BiVO4 photocatalyst was prepared by a photoreduction process. XRD, UV-Vis-DRS and FE-SEM techniques were employed to investigate its’ phase composition, absorption property and morphology. The photocatalytic activity of the as-prepared samples was evaluated by the degradation ratio of Rhodamine B. The result indicated that the as-synthesized BiVO4 are spherical microcrystals built up by square nanoplates. After Ag nanoparticles deposite, the photocatalytic activity of BiVO4 was greatly enhanced. Furthermore, the photoctalytic activity enhancement mechanism was also discussed.

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.

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