In:
Journal of Materials Chemistry A, Royal Society of Chemistry (RSC), Vol. 11, No. 4 ( 2023), p. 1991-2001
Abstract:
The wide application of the Fenton reaction has been severely restricted by the requirement of continuous feeding of H 2 O 2 , the iron-slurry production, and the slow recycle rate of Fe 3+ /Fe 2+ . This work reports transforming type-II Fe 2 O 3 @2H-MoS 2 heterostructures to a Z-scheme Fe 2 O 3 @C@1T/2H-MoS 2 catalyst capable of photocatalytic in situ generation of H 2 O 2 as an oxidant for the subsequent Fenton reaction. With MoS 2 as a co-catalyst to improve the reduction from Fe 3+ to Fe 2+ , the cascade process demonstrates high performance in oxidative degradation of organics ( e.g. , 100 mg L −1 tetracycline within 100 min). The in situ generated H 2 O 2 , with a yield as high as 1575 μmol g −1 h −1 in air-saturated methanol solution (75 vol%), accounts for 43.5% of the total degradation efficiency. The current system represents an effective solution to the challenges in the traditional Fenton reaction, holding great potential for organic pollutant degradation in wastewater.
Type of Medium:
Online Resource
ISSN:
2050-7488
,
2050-7496
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2702232-8
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