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

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.

scholarly journals A facile heterogeneous system for persulfate activation by CuFe2O4 under LED light irradiation

RSC Advances ◽  
2019 ◽  
Vol 9 (55) ◽  
pp. 32328-32337
Author(s):  
Xin Zhong ◽  
Xiao-Yu Ye ◽  
Di Wu ◽  
Kai-Xin Zhang ◽  
Wei Huang
Keyword(s):  
Catalytic System ◽  
Rhodamine B ◽  
Heterogeneous System ◽  
Light Irradiation ◽  
Led Light ◽  
Heterogeneous Catalytic ◽  
Heterogeneous Catalytic System ◽  
Persulfate Activation

In this study, the removal performance for rhodamine B (RB) by persulfate (PS) activated by the CuFe2O4 catalyst in a heterogeneous catalytic system under LED light irradiation was investigated.

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