Halloysite nanotube confined interface engineering enhanced catalytic oxidation of photo-Fenton reaction for aniline aerofloat degradation: Defective heterojunction for electron transfer regulation

Liu, Wei; Dong, Yingbo; Liu, Junfei; Zhang, Liping; Lu, Yanrong; Lin, Hai

doi:10.1016/j.cej.2022.138666

Cited by 8 publications

(2 citation statements)

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“…Energy conservation and consumption reduction, deep treatment and reuse, and standard discharge of wastewater in the wastewater treatment process have always been the focus and hotspot of people’s attention. At present, the main treatment methods for industrial wastewater include adsorption method, sedimentation method, membrane separation method, electrochemical method, catalytic oxidation method, and activated sludge method. − The Fenton catalytic oxidation technology has a long history, with the advantages of low cost, fast reaction, and strong oxidation ability . It can efficiently catalyze the degradation of pollutants in wastewater.…”

Section: Introductionmentioning

confidence: 99%

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Performance and Mechanism of the Modified Group Regulated the MIL-101(Fe) Type Fenton-like Catalysts

Guo,

Shi,

Feng

et al. 2024

ACS Omega

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In order to avoid the disadvantages of the Fenton process in wastewater treatment and reduce the cost of wastewater treatment, a series of MIL-101(Fe)-X (X = −OH, −NH 2 , −NO 2 , −H) solid Fenton catalysts were successfully prepared. The performance of these Fenton-like catalysts was studied with the Fenton experiment as a reference and methylene blue (MB) as an organic pollutant. The effects of the H 2 O 2 concentration, catalyst dosage, and reaction pH on catalytic performance were systematically studied. The research had shown that the optimal concentration of H 2 O 2 for catalytic reactions was 0.10 mmol/L and the pH was 3. At this point, their catalytic degradation MB performance was superior to the Fenton reaction and photocatalytic reaction. When the H 2 O 2 participated in the reaction, the performance of MIL-101(Fe)-X (X = −OH, −NH 2 , −NO 2 , −H) in catalyzing the degradation of MB followed the rule of −OH > −NH 2 > −NO 2 > −H. This was due to the synergistic effect of Fenton-like catalysis and photocatalytic degradation in the catalytic degradation of MB. In addition, the electron paramagnetic resonance and electrospray ionization mass spectrometry showed that the hydroxyl radical (•OH) generated during the catalytic process first underwent a redox reaction with the highly electronegative functional groups in the MB molecule, and finally oxidized it to CO 2 and H 2 O. This study successfully prepared commercially applicable Fenton-like catalysts and explored their optimal reaction conditions. This provides a technical reference for wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

“… 2 − 4 The Fenton catalytic oxidation technology has a long history, with the advantages of low cost, fast reaction, and strong oxidation ability. 5 It can efficiently catalyze the degradation of pollutants in wastewater. However, the traditional Fenton process produces heavy metal Fe 3+ , leading to secondary pollution of wastewater.…”

Section: Introductionmentioning

confidence: 99%