Fe2O3/graphene nanocomposites as heterogeneous Fenton catalysts: Correlation studies on catalyst dosage, graphene loading and adsorption kinetics on methylene blue degradation

2021 ◽  
Author(s):  
Gaber E. Eldesoky ◽  
P. Baraneedharan ◽  
B. M. Reddy ◽  
Adel E. M. Yahya ◽  
M. Alfakeer ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Adsorption Kinetics ◽  
Heterogeneous Fenton ◽  
Methylene Blue Degradation ◽  
Graphene Nanocomposites ◽  
Correlation Studies ◽  
Catalyst Dosage

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

scholarly journals Mn3O4/graphene nanocomposites: outstanding performances as highly efficient photocatalysts and microwave absorbers

RSC Advances ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 826-839 ◽  
Author(s):  
Ahmed A. Amer ◽  
S. M. Reda ◽  
M. A. Mousa ◽  
Mohamed Mokhtar Mohamed
Keyword(s):  
Methylene Blue ◽  
Microwave Irradiation ◽  
Solvothermal Process ◽  
Methylene Blue Degradation ◽  
Microwave Absorbers ◽  
Graphene Nanocomposites ◽  
Highly Efficient

Mn3O4 incorporated graphenes synthesized by a deposition-solvothermal process were efficiently used for methylene blue degradation under visible illumination (88 W, λ > 420 nm) and under microwave irradiation (800 W, 2.45 GHz, 373 K).

scholarly journals Synthesis of a MnO2/Fe3O4/diatomite nanocomposite as an efficient heterogeneous Fenton-like catalyst for methylene blue degradation

2018 ◽  
Vol 9 ◽  
pp. 1940-1950 ◽  
Author(s):  
Zishun Li ◽  
Xuekun Tang ◽  
Kun Liu ◽  
Jing Huang ◽  
Yueyang Xu ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Cost Efficiency ◽  
Reaction Rate ◽  
Organic Pollutant ◽  
Layer By Layer ◽  
Heterogeneous Fenton ◽  
Fast Reaction ◽  
Methylene Blue Degradation ◽  
Ph Range ◽  
Fast Reaction Rate

Heterogeneous Fenton-like catalysts with the activation of peroxymonosulfate (PMS), which offer the advantages of fast reaction rate, wide functional pH range and cost efficiency, have attracted great interest in wastewater treatment. In this study, a novel magnetic MnO2/Fe3O4/diatomite nanocomposite is synthesized and then used as heterogeneous Fenton-like catalyst to degrade the organic pollutant methylene blue (MB) with the activation of PMS. The characterization results show that the Fe3O4 nanoparticles and nanoflower-like MnO2 are evenly distributed layer-by-layer on the surface of diatomite, which can be readily magnetically separated from the solution. The as-prepared catalyst, compared with other Fenton-like catalysts, shows a superb MB degradation rate of nearly 100% in 45 min in the pH range of 4 to 8 and temperature range of 25 to 55 °C. Moreover, the nanocomposite shows a good mineralization rate of about 60% in 60 min and great recyclability with a recycle efficiency of 86.78% after five runs for MB. The probable mechanism of this catalytic system is also proposed as a synergistic effect between MnO2 and Fe3O4.

scholarly journals Kinetic Studies of Methylene Blue Degradation using CaTiO3 Photocatalyst from Chicken Eggshells

2021 ◽  
Vol 1726 ◽  
pp. 012017
Author(s):  
Lusi Ernawati ◽  
Ade Wahyu Yusariarta ◽  
Andromeda Dwi Laksono ◽  
Ruri Agung Wahyuono ◽  
Hendri Widiyandari ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Kinetic Studies ◽  
Methylene Blue Degradation
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