scholarly journals Preparation of Heterogeneous Fenton-Type Nano Catalysts and Their Application to Methylene Blue Degradation

2020 ◽  
Vol 23 (4) ◽  
pp. 764-770
Author(s):  
Thanh Thien Co ◽  
Dinh Khoi Le ◽  
Van De Le ◽  
Thi Nhu Thuy Doan
Keyword(s):  
Methylene Blue ◽  
Iron Nanoparticles ◽  
Chemical Characterization ◽  
Catalyst System ◽  
Industrial Applications ◽  
High Yield ◽  
Heterogeneous Fenton ◽  
Fenton Catalyst ◽  
Transmission Electron ◽  
Nano Catalysts

Introduction: Iron-based nanocatalysts are known as a new generation heterogeneous Fenton catalyst, replacing the traditional Fenton catalyst system which has many disadvantages in experimental processes and industrial applications. In this study, we focused on the preparation of iron nanoparticles and their use when embedded in traditional supports, as well as tested their catalytic activity by modified Fenton-type oxidation of methylene blue (MB) substrate. Method: Scanning Electron Microscope (SEM), Transmission Electron Microscopy (TEM), X-ray diffraction (XRD) and UV-vis were used for physio-chemical characterization of the catalysts. Results: Iron nanoparticles were obtained in the reduction of iron salt by sodium borohydride (NaBH4), with particle size in the range of 4-5 nm. Fe-X (X represents C, Bentonite, Al2O3, or ZnO) was synthesized in high yield and applied to the Fenton oxidation of MB; approximately 99% conversion was observed in the case of Fe-C. Conclusion: Supported iron nanoparticles are active catalysts for the oxidation of MB; however, there are limitations if pH is above 3.

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.

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.

Sign in / Sign up

Export Citation Format

Share Document