Magnetic carbon microspheres as a reusable catalyst in heterogeneous Fenton system for the efficient degradation of phenol in wastewater

2022 ◽  
pp. 128265
Author(s):  
Ping Ke ◽  
Danlin Zeng ◽  
Rong Wang ◽  
Jiawei Cui ◽  
Xin Li ◽  
...  
Keyword(s):  
Reusable Catalyst ◽  
Carbon Microspheres ◽  
Heterogeneous Fenton ◽  
Magnetic Carbon ◽  
Fenton System

scholarly journals Renovation and Reuse of Reactive Dyeing Effluent by a Novel Heterogeneous Fenton System Based on Metal Modified PTFE Fibrous Catalyst/H2O2

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Bing Li ◽  
Yongchun Dong ◽  
Zhizhong Ding ◽  
Yiming Xu ◽  
Chi Zou
Keyword(s):  
Reactive Dyes ◽  
Cotton Fabrics ◽  
Molar Ratio ◽  
The Novel ◽  
Heterogeneous Fenton ◽  
Reactive Dyeing ◽  
Toc Removal ◽  
Dyeing Effluent ◽  
Fenton System

Cu-Fe bimetallic grafted polytetrafluoroethylene (PTFE) fiber complexes were prepared and optimized as the novel heterogeneous Fenton catalysts for the degradation of reactive dyes under UV irradiation. Cotton fabrics were dyed with three reactive dyes, namely, Reactive Red 195, Reactive Yellow 145, and Reactive Blue 222, in tap fresh water using exhaustion process. The spent dyeing effluents were then collected and degraded with the optimized Cu-Fe bimetallic grafted PTFE fiber complex/H2O2system. The treated dyeing effluents were characterized and reused for the dyeing of cotton fabrics through the same process. The effect of reuse process number on quality of the dyed cotton fabrics was examined. The results indicated that the Cu-Fe bimetallic modified PTFE fiber complex with a Cu/Fe molar ratio of 2.87 was found to be the most effective fibrous catalyst, which enhanced complete decolorization of the treated dyeing effluents with H2O2in 4 h. However, the TOC removal for the treated dyeing effluents was below 80%. The dyeing quality was not affected for three successive cycles. The increase in residual TOC value influences fourth dyeing cycle. Further TOC reduction of the treated effluents is needed for its repeated reuse in more than three dyeing cycles.

Orientation growth modulated magnetic-carbon microspheres toward broadband electromagnetic wave absorption

Carbon ◽  
2021 ◽  
Vol 172 ◽  
pp. 516-528
Author(s):  
Lei Wang ◽  
Xuefeng Yu ◽  
Mengqiu Huang ◽  
Wenbin You ◽  
Qingwen Zeng ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Carbon Microspheres ◽  
Electromagnetic Wave Absorption ◽  
Wave Absorption ◽  
Magnetic Carbon ◽  
Orientation Growth

Pollutant degradation behaviors in a heterogeneous Fenton system through Fe/S-doped aerogel

2020 ◽  
Vol 714 ◽  
pp. 136436 ◽  
Author(s):  
Xuechun Wang ◽  
Yuan Zhuang ◽  
Jia Zhang ◽  
Laizhou Song ◽  
Baoyou Shi
Keyword(s):  
Pollutant Degradation ◽  
Heterogeneous Fenton ◽  
Degradation Behaviors ◽  
Fenton System

Immobilisation of Iron-Containing Materials onto Supporting Materials in Heterogeneous Fenton System: A Review

2014 ◽  
Vol 955-959 ◽  
pp. 569-580 ◽  
Author(s):  
Juan Chen
Keyword(s):  
Surface Area ◽  
Heterogeneous Fenton ◽  
Chemical Route ◽  
Advantages And Disadvantages ◽  
System A ◽  
Fenton Catalyst ◽  
Heterogeneous Fenton Catalyst ◽  
Supporting Materials ◽  
Fenton System

The purpose of this review is to aim a summary of the development in the use of different supports for the immobilisation of a heterogeneous Fenton catalyst, which areiron-containing materials. Various anchors and immobilisation methods that are universally employed to the remediation of wastewater are considered. Commonly, the immobilisation of a heterogeneous Fenton catalyst onto supportive material has chiefly been approved through one of two major routes; chemical route physical route or physical route. The advantages and disadvantages of various immobilisation methods to obtain a gigantic surface area iron-containing materials support is considered too.

Nanofurry magnetic carbon microspheres for separation processes and catalysis: synthesis, phase composition, and properties

2015 ◽  
Vol 50 (22) ◽  
pp. 7353-7363 ◽  
Author(s):  
Tibor Pasinszki ◽  
Melinda Krebsz ◽  
László Kótai ◽  
István E. Sajó ◽  
Zoltán Homonnay ◽  
...  
Keyword(s):  
Phase Composition ◽  
Carbon Microspheres ◽  
Separation Processes ◽  
Magnetic Carbon

Heterogeneous Fenton-like degradation of an azo dye reactive brilliant orange by the combination of activated carbon–FeOOH catalyst and H2O2

2013 ◽  
Vol 67 (3) ◽  
pp. 572-578 ◽  
Author(s):  
Jinhua Wu ◽  
Guanghui Lin ◽  
Ping Li ◽  
Weizhao Yin ◽  
Xiangde Wang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Azo Dye ◽  
Kinetic Studies ◽  
Ferric Ions ◽  
Heterogeneous Fenton ◽  
Pseudo First Order Reaction ◽  
Iron Leaching ◽  
Alkaline Conditions ◽  
Fenton System ◽  
Decoloration Rate

The decoloration of an azo dye reactive brilliant orange (X-GN) by a heterogeneous Fenton system using activated carbon–FeOOH catalyst (AC–FeOOH) and H2O2 was studied. Under typical conditions (pH 7.0, H2O2 10 mmol/L, AC–FeOOH 1.0 g/L and 30 °C), 98% decoloration rate of X-GN was achieved in 240 min. The decoloration efficiency of X-GN increased with higher H2O2 dosage, higher AC–FeOOH dosage and higher reaction temperature. Though the catalytic reaction was an acid driven process, a sufficient decoloration performance was still obtained in neutral and alkaline conditions. Kinetic studies suggested that the decoloration of X-GN followed a pseudo-first order reaction and the activation energy was 17.2 kJ/mol. Iron leaching from AC–FeOOH occurred during the reaction, but the decoloration efficiency of X-GN was still higher than 80% after four runs. The AC–FeOOH has a good stability and can be reused. Besides, the generation of massive iron-containing sludge can be avoided after reaction as the remaining ferric ions in the solution were less than 1 mg/L in this combined H2O2 and AC–FeOOH process.

Novel active heterogeneous Fenton system based on Fe3−xMxO4 (Fe, Co, Mn, Ni): The role of M2+ species on the reactivity towards H2O2 reactions

2006 ◽  
Vol 129 (1-3) ◽  
pp. 171-178 ◽  
Author(s):  
R COSTA ◽  
M LELIS ◽  
L OLIVEIRA ◽  
J FABRIS ◽  
J ARDISSON ◽  
...  
Keyword(s):  
Heterogeneous Fenton ◽  
Fenton System

Nanoscale zero-valent iron incorporated with nanomagnetic diatomite for catalytic degradation of methylene blue in heterogeneous Fenton system

2016 ◽  
Vol 73 (11) ◽  
pp. 2815-2823 ◽  
Author(s):  
Yiming Zha ◽  
Ziqing Zhou ◽  
Haibo He ◽  
Tianlin Wang ◽  
Liqiang Luo
Keyword(s):  
Methylene Blue ◽  
Chemical Reduction ◽  
Nitrogen Adsorption ◽  
Catalytic Degradation ◽  
Zero Valent Iron ◽  
Precipitation Method ◽  
Heterogeneous Fenton ◽  
Nanoscale Zero Valent Iron ◽  
Co Precipitation ◽  
Fenton System

Nanoscale zero-valent iron (nZVI) incorporated with nanomagnetic diatomite (DE) composite material was prepared for catalytic degradation of methylene blue (MB) in heterogeneous Fenton system. The material was constructed by two facile steps: Fe3O4 magnetic nanoparticles were supported on DE by chemical co-precipitation method, after which nZVI was incorporated into magnetic DE by liquid-phase chemical reduction strategy. The as-prepared catalyst was characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, magnetic properties measurement and nitrogen adsorption–desorption isotherm measurement. The novel nZVI@Fe3O4-diatomite nanocomposites showed a distinct catalytic activity and a desirable effect for degradation of MB. MB could be completely decolorized within 8 min and the removal efficiency of total organic carbon could reach to 90% after reaction for 1 h.

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