In situ use of photocatalytically produced H2O2 for Fenton degradation of organic pollutants

Kumar, Uttam; Shrivastava, Anshu; Sinha, Indrajit

doi:10.1039/d3cy01769a

Catal. Sci. Technol.

2024

DOI: 10.1039/d3cy01769a

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In situ use of photocatalytically produced H₂O₂ for Fenton degradation of organic pollutants

Uttam Kumar,

Anshu Shrivastava,

Indrajit Sinha

Abstract: Recent years have seen increased research on green H2O2 production by photocatalysis. Though the H2O2 formation by photocatalysis is still at a dilute level, it is sufficient to degrade a...

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Cited by 3 publications

References 87 publications

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Comparative evaluation of α-Bi2O3/CoFe2O4 and ZnO/CoFe2O4 heterojunction nanocomposites for microwave induced catalytic degradation of tetracycline

Bose,

Kumar

2024

Chemosphere

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Comparative evaluation of α-Bi2O3/CoFe2O4 and ZnO/CoFe2O4 heterojunction nanocomposites for microwave induced catalytic degradation of tetracycline

Bose,

Kumar

2024

Chemosphere

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Red mud supported on rice husk biochar as sono-photo-Fenton catalysts for degradation of ciprofloxacin in water

Thi Mai,

Van Thanh,

Nhat Huy

et al. 2025

Separation and Purification Technology

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Boosted Photo-Fenton Degradation over a Composite Catalyst Based on FeOOH Nanoparticles Anchored on a Flower-like BaTiO₃ Microsphere

Cui,

Yuan,

Sun

et al. 2024

ACS Appl. Nano Mater.

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The conventional heterogeneous photo-Fenton systems suffer from limited surface active sites, sluggish Fe 3+ /Fe 2+ cycle, and low activation efficiency of hydrogen peroxide, thus limiting their applications. Herein a 0D/ 3D FeOOH/BaTiO 3 composite photo-Fenton catalyst system was proposed. The typical microstructure in which FeOOH nanoparticles uniformly anchored on the flower-like BaTiO 3 microsphere endows the composite catalysts with abundant active sites and intimate heterojunctions, which are conducive to charge carrier separation and transportation, as confirmed by the electrochemical and XPS characterization results. Benefiting from these advantages, the degradation rate of RhB with 1:4 FeOOH/BaTiO 3 was significantly increased to 0.23 min −1 , which was 40.5 and 7.9 times higher than that of BaTiO 3 and FeOOH when a trace amount of H 2 O 2 (6 mM) was present. In addition, the catalysts also showed superior degradation efficiency in decomposing the antibiotic TC and possessed high recycle stability. The triggered Fenton reactions give rise to abundant • OH, which was confirmed to be the dominated active species. According to the band structure analysis and control experiment results, it was believed the smooth photoelectron transfer from BaTiO 3 to FeOOH accelerated the Fe 3+ /Fe 2+ cycle, facilitated activation of H 2 O 2 , and boosted photo-Fenton reactions. This work provides a perspective on the design of high-performance photo-Fenton catalysts to tackle wastewater treatment.

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In situ use of photocatalytically produced H₂O₂ for Fenton degradation of organic pollutants

Abstract: Recent years have seen increased research on green H2O2 production by photocatalysis. Though the H2O2 formation by photocatalysis is still at a dilute level, it is sufficient to degrade a...

Cited by 3 publications

References 87 publications

Comparative evaluation of α-Bi2O3/CoFe2O4 and ZnO/CoFe2O4 heterojunction nanocomposites for microwave induced catalytic degradation of tetracycline

Comparative evaluation of α-Bi2O3/CoFe2O4 and ZnO/CoFe2O4 heterojunction nanocomposites for microwave induced catalytic degradation of tetracycline

Red mud supported on rice husk biochar as sono-photo-Fenton catalysts for degradation of ciprofloxacin in water

Boosted Photo-Fenton Degradation over a Composite Catalyst Based on FeOOH Nanoparticles Anchored on a Flower-like BaTiO₃ Microsphere

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In situ use of photocatalytically produced H2O2 for Fenton degradation of organic pollutants

Abstract: Recent years have seen increased research on green H2O2 production by photocatalysis. Though the H2O2 formation by photocatalysis is still at a dilute level, it is sufficient to degrade a...

Cited by 3 publications

References 87 publications

Comparative evaluation of α-Bi2O3/CoFe2O4 and ZnO/CoFe2O4 heterojunction nanocomposites for microwave induced catalytic degradation of tetracycline

Comparative evaluation of α-Bi2O3/CoFe2O4 and ZnO/CoFe2O4 heterojunction nanocomposites for microwave induced catalytic degradation of tetracycline

Red mud supported on rice husk biochar as sono-photo-Fenton catalysts for degradation of ciprofloxacin in water

Boosted Photo-Fenton Degradation over a Composite Catalyst Based on FeOOH Nanoparticles Anchored on a Flower-like BaTiO3 Microsphere

Contact Info

Product

Resources

About

In situ use of photocatalytically produced H₂O₂ for Fenton degradation of organic pollutants

Boosted Photo-Fenton Degradation over a Composite Catalyst Based on FeOOH Nanoparticles Anchored on a Flower-like BaTiO₃ Microsphere