Fe2O3@FeB Composites Facilitate Heterogeneous Fenton Process by Efficient Fe(III)/Fe(II) Cycle and In-situ H2O2 Generation

A catalytic system for the generation of H2O2 from formic acid and oxygen at ambient conditions has been developed. Pd-supported catalysts (Pd/C, Pd/TiO2 and Pd/Al2O3) have been tested, showing that for bulk purposes Pd/Al2O3 is more favourable while for in-situ applications Pd/TiO2 seems to be preferable. However, when these catalysts were tested in the in-situ H2O2 generation for the oxidation of phenol by means of the Fenton process (in the presence of ferrous ion), Pd/TiO2 did not demonstrate the expected results, whereas Pd/Al2O3 showed to be an efficient catalyst. Therefore, Pd/Al2O3 is offered as a good catalyst for Fenton's reactions with in-situ generated H2O2. In order to optimize the operating cost of the process, different initial concentrations of formic acid have been tested with Pd/Al2O3, and it has been seen that lowering the initial amount of formic acid favours the efficiency of the process. The effect of the addition of a second metallic (Pt, Au, Fe, Cu) active phase was studied. Concerning H2O2 generation, best results were obtained with a Pd-Au catalyst for bulk production (long time) while for in-situ application Pd-Fe showed interesting results. The Pd-Fe catalyst also performed similarly to the semi-heterogeneous Fenton system involving Pd/Al2O3 and ferrous ion in the degradation of phenol. Therefore, Pd-Fe catalyst offered an interesting prospect for making a full heterogeneous catalyst for Fenton reaction involving in-situ generation of H2O2

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Organic carbon modified Fe3O4/schwertmannite for heterogeneous Fenton reaction featuring synergistic in-situ H2O2 generation and activation

Separation and Purification Technology ◽

10.1016/j.seppur.2021.119344 ◽

2021 ◽

pp. 119344

Author(s):

Ting Li ◽

Zikai Wang ◽

Zexin Zhang ◽

Kun Feng ◽

Jianru Liang ◽

...

Keyword(s):

Organic Carbon ◽

Fenton Reaction ◽

Heterogeneous Fenton ◽

H2o2 Generation ◽

Heterogeneous Fenton Reaction

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In Situ Growth of a Cationic Polymer from the N-Terminus of Glucose Oxidase To Regulate H2O2 Generation for Cancer Starvation and H2O2 Therapy

ACS Applied Materials & Interfaces ◽

10.1021/acsami.8b20956 ◽

2019 ◽

Vol 11 (10) ◽

pp. 9756-9762 ◽

Cited By ~ 14

Author(s):

Hanjun Hao ◽

Mengmeng Sun ◽

Pengyong Li ◽

Jiawei Sun ◽

Xinyu Liu ◽

...

Keyword(s):

Glucose Oxidase ◽

Cationic Polymer ◽

In Situ Growth ◽

N Terminus ◽

H2o2 Generation

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Remediation of ammonia-stripped sanitary landfill leachate by integrated heterogeneous Fenton process and aerobic biological methods

International Journal of Environmental & Analytical Chemistry ◽

10.1080/03067319.2021.1969381 ◽

2021 ◽

pp. 1-14

Author(s):

Gamal K. Hassan ◽

Tarek A. Gad-Allah ◽

Mohamed I. Badawy ◽

Fatma A. El-Gohary

Keyword(s):

Landfill Leachate ◽

Sanitary Landfill ◽

Fenton Process ◽

Heterogeneous Fenton ◽

Biological Methods ◽

Sanitary Landfill Leachate

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Real-time detection of hydrogen peroxide using microelectrodes in an ultrasonic enhanced heterogeneous Fenton process catalyzed by ferrocene

Environmental Science and Pollution Research ◽

10.1007/s11356-015-4774-2 ◽

2015 ◽

Vol 22 (14) ◽

pp. 11170-11174 ◽

Cited By ~ 4

Author(s):

Jun Lin ◽

Qing Xin ◽

Xiumin Gao

Keyword(s):

Hydrogen Peroxide ◽

Real Time ◽

Fenton Process ◽

Heterogeneous Fenton ◽

Real Time Detection

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The use of steel slags in the heterogeneous Fenton process for decreasing the chemical oxygen demand of oil refinery wastewater

Water Science & Technology ◽

10.2166/wst.2018.347 ◽

2018 ◽

Vol 78 (5) ◽

pp. 1159-1167 ◽

Cited By ~ 1

Author(s):

Behnam Heidari ◽

Mohsen Soleimani ◽

Nourollah Mirghaffari

Keyword(s):

Microwave Irradiation ◽

Chemical Oxygen Demand ◽

Steel Slag ◽

Oxygen Demand ◽

Oil Refinery ◽

Fenton Process ◽

Refinery Wastewater ◽

Optimum Conditions ◽

Heterogeneous Fenton ◽

Oil Refinery Wastewater

Abstract The Fenton process is a useful and inexpensive type of advanced oxidation process for industrial wastewater treatment. This study was performed with the aim of using the steel slag as a catalyst in the heterogeneous Fenton process in order to reduce the chemical oxygen demand (COD) of oil refinery wastewater. The effects of various parameters including the reaction time (0.5, 1.0, 2.0, 3.0 and 4.0 h), pH (2.0, 3.0, 4.0, 5.0, 6.0 and 7.0), the concentration of steel slag (12.5, 25.0 and 37.5 g/L), and H2O2 concentration (100, 250, 400 and 500 mg/L) on the Fenton process were investigated. Furthermore, the effect of microwave irradiation on the process efficiency was studied by considering the optimum conditions of the mentioned parameters. The results showed that using 25.0 g/L of steel slag and 250 mg/L H2O2, at pH = 3.0, could reduce COD by up to 64% after 2.0 h. Also, microwave irradiation decreased the time of the process from 120 min to 25 min in the optimum conditions, but it consumed a high amount of energy. It could be concluded that steel slags had a high potential in the treatment of oil refinery wastewater through the Fenton process.

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