Synthesis, characterization of novel ZnO/CuO nanoparticles, and the applications in photocatalytic performance for rhodamine B dye degradation

2021 ◽  
Author(s):  
Thi Thao Truong ◽  
Truong Tho Pham ◽  
Thi Thuy Trang Truong ◽  
Tien Duc Pham
Keyword(s):  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Dye Degradation ◽  
Cuo Nanoparticles ◽  
Rhodamine B Dye

scholarly journals Palladium-Supported Zirconia-Based Catalytic Degradation of Rhodamine-B Dye from Wastewater

Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1522
Author(s):  
Salma Jabeen ◽  
Muhammad Sufaid Khan ◽  
Rozina Khattak ◽  
Ivar Zekker ◽  
Juris Burlakovs ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rhodamine B ◽  
Dye Degradation ◽  
Freundlich Isotherm ◽  
Impregnation Method ◽  
K Value ◽  
First Order Kinetics ◽  
Good Catalytic Activity ◽  
Rhodamine B Dye ◽  
Best Fit

The catalytic activity of Pd/ZrO2 was studied in terms of the degradation of rhodamine-B dye in the presence of hydrogen peroxide. Pd/ZrO2 was prepared by impregnation method, calcined at 750 °C and characterized by XRD, SEM and EDX. The catalyst showed good catalytic activity for dye degradation at 333 K, using 0.05 g of the catalyst during 5 h. The reaction kinetics followed the pseudo-first order kinetics. The Freundlich, Langmuir and Temkin isotherms were applied to the data and the best fit was obtained with Freundlich isotherm. Thermodynamic parameters, like ΔH, ΔG and ΔS were also calculated. The negative values of ΔH (−291.406 KJ/mol) and Gibbs free energy (ΔG) showed the exothermic and spontaneous nature of the process. The positive ΔS (0.04832 KJ/mol K) value showed suitable affinity of catalyst for dye degradation. The catalyst was very stable, active and was easily separated from the reaction mixture by filtration. It can be concluded from the results that the prepared catalyst could be effectively used in dyes degradation/removal from water subjected to further validation and use for various dyes.

NiFe-LDH@ZnO@NF composite for photo-degradation of Rhodamine B dye

MRS Advances ◽  
2019 ◽  
Vol 4 (33-34) ◽  
pp. 1887-1893
Author(s):  
Jun Wu ◽  
Yonghui Gong ◽  
Qiang Fu ◽  
Chunxu Pan
Keyword(s):  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Nickel Foam ◽  
Photogenerated Electron ◽  
Chemical Compositions ◽  
Photocatalytic Efficiency ◽  
Electron Hole ◽  
Photo Degradation ◽  
Potential Applications ◽  
Rhodamine B Dye

ABSTRACTIn this paper, a novel NiFe-LDH@ZnO composite was prepared by using a facile two-step process upon nickel foam (NF) substrate. The morphologies and chemical compositions of the samples were characterized by SEM, EDS, XRD and XPS. Photocatalytic degradation of Rhodamine B dye was tested with the samples NiFe-LDH@ZnO@NF, ZnO@NF and NiFe-LDH under the same conditions. The experimental results revealed that the NiFe-LDH@ZnO@NF composite exhibited excellent photocatalytic performance, i.e., 1.4 and 2.5 times higher than that of pure ZnO and NiFe-LDH, respectively. The reason was that the NiFe-LDH@ZnO@NF composite provided a possibility to effectively inhibit the recombination of the photogenerated electron-hole pairs, and therefore enhanced the photocatalytic efficiency. This composite is expected to have potential applications in wastewater treatment field.

Preparation and characterization of an Ag3PO4/GaOOH composite with enhanced photocatalytic performance toward rhodamine B

2020 ◽  
Vol 44 (6) ◽  
pp. 2414-2422
Author(s):  
Panqi Huang ◽  
Jingfei Luan
Keyword(s):  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Highly Efficient

A highly efficient Ag3PO4/GaOOH composite was innovatively prepared and its photocatalytic performance was evaluated through degrading rhodamine B (RhB) under illumination, in this paper.

Heterojunction of BiPO 4 /BiOBr photocatalysts for Rhodamine B dye degradation under visible LED light irradiation

2019 ◽  
Vol 67 (6) ◽  
pp. 1016-1023 ◽  
Author(s):  
Hong‐jian Zhao ◽  
Ren‐Jang Wu ◽  
Xu‐Cheng Wang ◽  
Yu‐min An ◽  
Wen‐Xia Zhao ◽  
...  
Keyword(s):  
Rhodamine B ◽  
Dye Degradation ◽  
Light Irradiation ◽  
Led Light ◽  
Rhodamine B Dye

Enhanced visible-light photocatalytic performance of BiOBr/UiO-66(Zr) composite for dye degradation with the assistance of UiO-66

RSC Advances ◽  
2015 ◽  
Vol 5 (49) ◽  
pp. 39592-39600 ◽  
Author(s):  
Zhou Sha ◽  
Jishan Wu
Keyword(s):  
Visible Light ◽  
High Activity ◽  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Dye Degradation ◽  
Catalyst Stability ◽  
Good Catalyst ◽  
Visible Light Photocatalytic

A BiOBr/UiO-66(Zr) composite was used as visible-light promoted photocatalyst for the degradation of rhodamine B with high activity and good catalyst stability.

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