scholarly journals Selective Fenton-like oxidation of methylene blue on modified Fe-zeolites prepared via molecular imprinting technique

2016 ◽  
Vol 75 (3) ◽  
pp. 659-669 ◽  
Author(s):  
Yuanyuan Zhang ◽  
Jiaobo Shang ◽  
Yanqun Song ◽  
Chuan Rong ◽  
Yinghui Wang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Removal Efficiency ◽  
Molecular Imprinting ◽  
Selective Adsorption ◽  
Fenton Oxidation ◽  
Heterogeneous Fenton ◽  
Fenton Catalyst ◽  
Adsorption Amount ◽  
Heterogeneous Fenton Catalyst ◽  
Heterogeneous Fenton Oxidation

A facile strategy to increase the selectivity of heterogeneous Fenton oxidation is investigated. The increase was reached by increasing selective adsorption of heterogeneous Fenton catalyst to a target pollutant. The heterogeneous Fenton catalyst was prepared by a two-step process. First, zeolite particles were imprinted by the target pollutant, methylene blue (MB), in their aggregations, and second, iron ions were loaded on the zeolite aggregations to form the molecule imprinted Fe-zeolites (MI-FZ) Fenton catalyst. Its adsorption amount for MB reached as high as 44.6 mg g−1 while the adsorption amount of un-imprinted Fe-zeolites (FZ) is only 15.6 mg g−1. Fenton removal efficiency of MI-FZ for MB was 87.7%, being 33.9% higher than that of FZ. The selective Fenton oxidation of MI-FZ for MB was further confirmed by its removal performance for the mixed MB and bisphenol A (BPA) in solution. The removal efficiency of MB was 44.7% while that of BPA was only 14.9%. This fact shows that molecular imprinting is suitable to prepare the Fe-zeolites (FZ)-based Fenton catalyst with high selectivity for removal of target pollutants, at least MB.

New insight into the microstructure of natural calcined laterites and their performance as heterogeneous Fenton catalyst for methylene blue degradation

2018 ◽  
Vol 124 (2) ◽  
pp. 931-956 ◽  
Author(s):  
Gloria Murielle Rostandi Kpinsoton ◽  
Héla Karoui ◽  
Yohan Richardson ◽  
Blédja N’dri Stéphanie Koffi ◽  
Hamma Yacouba ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Heterogeneous Fenton ◽  
Methylene Blue Degradation ◽  
Fenton Catalyst ◽  
Heterogeneous Fenton Catalyst ◽  
Insight Into

Fixed Bed Reactor for Removal of Methylene Blue Dye Using Heterogeneous Fenton Catalyst

2020 ◽  
Vol 24 (4) ◽  
pp. 04020037 ◽  
Author(s):  
Suraj Punathil ◽  
Damodhar Ghime ◽  
Titikshya Mohapatra ◽  
Chandrakant Thakur ◽  
Prabir Ghosh
Keyword(s):  
Methylene Blue ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Heterogeneous Fenton ◽  
Fenton Catalyst ◽  
Heterogeneous Fenton Catalyst

Iron oxide/porous carbon as a heterogeneous Fenton catalyst for fast decomposition of hydrogen peroxide and efficient removal of methylene blue

2017 ◽  
Vol 5 (2) ◽  
pp. 748-755 ◽  
Author(s):  
Seung Hwa Yoo ◽  
Dawon Jang ◽  
Han-Ik Joh ◽  
Sungho Lee
Keyword(s):  
Hydrogen Peroxide ◽  
Methylene Blue ◽  
Iron Oxide ◽  
Porous Carbon ◽  
High Performance ◽  
Efficient Removal ◽  
Heterogeneous Fenton ◽  
Fenton Catalyst ◽  
Heterogeneous Fenton Catalyst ◽  
Fast Decomposition

A high performance Fe3O4/Fe/Fe3C@PCNF heterogeneous Fenton catalyst was synthesized for aqueous H2O2 decomposition and was utilized to remove methylene blue in water.

Magnetic Nd2Fe14B Actived Carbon: Fabrication and Heterogeneous Fenton Oxidation of Congo Red

2014 ◽  
Vol 675-677 ◽  
pp. 426-429
Author(s):  
Chun Wei Yang ◽  
Dong Wang ◽  
Qian Tang
Keyword(s):  
Activated Carbon ◽  
Congo Red ◽  
Fenton Oxidation ◽  
Fenton Process ◽  
Heterogeneous Fenton ◽  
Pseudo First Order Reaction ◽  
Fenton Catalyst ◽  
Heterogeneous Fenton Oxidation ◽  
Dyestuff Wastewater ◽  
Actived Carbon

Magnetic Nd2Fe14B activated carbon, a new kind of heterogeneous Fenton catalyst has been synthesis to treat the dyestuff wastewater. The obtained catalysts were characterized by X-raydiffraction (XRD) and vibrating sample magnetometer (VSM), and the catalytic activity in heterogeneous Fenton oxidation of Congo red was evaluated. Experiments show that the Nd2Fe14B activated carbon has hard magnetic properties. The saturated magnetization, remanence and coercive force were 15.93emu/g, 6.0emu/g, and 1313Oe, respectively. The results also indicated that Nd2Fe14B activated carbon has good performance on azo dye Congo red oxidation with heterogeneous Fenton process. Under the optimum conditions ([NdFeB-AC-FC]0=20g/L, [H2O2]0= 8mmol/L and pH=7.0), Congo red degradation rate could reach 83.4%. The pH had few effects on heterogeneous Fenton process degraded Congo red. The kinetics studied shown that Congo red degraded followed the pseudo-first-order reaction by heterogeneous Fenton process.

Heterogeneous fenton oxidation of methylene blue with Fe-impregnated biochar catalyst

Biochar ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. 165-176
Author(s):  
Jong-Hwan Park ◽  
Jim J. Wang ◽  
Ki Hun Park ◽  
Dong-Cheol Seo
Keyword(s):  
Methylene Blue ◽  
Fenton Oxidation ◽  
Heterogeneous Fenton ◽  
Heterogeneous Fenton Oxidation
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