Synthesis of magnetic NiFe 2 O 4 /g-C 3 N 4 heterojunction photocatalysts for boosting dye degradation performance under visible-light irradiation.

Autor: Nguyen LTT; Faculty of Chemistry, Thai Nguyen University of Education Thai Nguyen 240000 Vietnam., Duong ATT; Faculty of Chemistry, Thai Nguyen University of Education Thai Nguyen 240000 Vietnam., Bui ND; Faculty of Chemistry, Thai Nguyen University of Education Thai Nguyen 240000 Vietnam., Ngo VTM; Faculty of Chemistry, Thai Nguyen University of Education Thai Nguyen 240000 Vietnam., Nguyen HQ; Faculty of Chemistry, Thai Nguyen University of Education Thai Nguyen 240000 Vietnam., Nguyen HTT; Faculty of Automotive and Power Machinery Engineering, Thai Nguyen University of Technology Thai Nguyen 24000 Vietnam., Tran GT; Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University 298-300A Nguyen Tat Thanh, District 4 Ho Chi Minh City 755414 Vietnam tranvt@ntt.edu.vn tranuv@gmail.com +84-028-39-404-759 +84-028-3941-1211., Tran TV; Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University 298-300A Nguyen Tat Thanh, District 4 Ho Chi Minh City 755414 Vietnam tranvt@ntt.edu.vn tranuv@gmail.com +84-028-39-404-759 +84-028-3941-1211.
Jazyk: angličtina
Zdroj: Nanoscale advances [Nanoscale Adv] 2024 Dec 05. Date of Electronic Publication: 2024 Dec 05.
DOI: 10.1039/d4na00694a
Abstrakt: Water pollution from dyes in wastewater is a critical global issue, as these stable organic dyes resist biodegradation, posing serious threats to aquatic ecosystems. To address this situation, advanced photocatalysts have been developed. Here, NiFe 2 O 4 /g-C 3 N 4 was synthesized for the photocatalytic degradation of Rhodamine B (RhB) dye in the presence of H 2 O 2 and visible light. Physicochemical analysis results showed NiFe 2 O 4 nanoparticles dispersed in the g-C 3 N 4 matrix, with an upward trend in the saturation magnetization of CNF x as NiFe 2 O 4 content rose. The surface area of CNF30 was 62.3 m 2 g -1 , outperforming both NiFe 2 O 4 (23.2 m 2 g -1 ) and g-C 3 N 4 (48.5 m 2 g -1 ). NiFe 2 O 4 /g-C 3 N 4 could be reused up to four cycles, and efficiently catalyzed the degradation of nearly 98% RhB dye, showing a decreased rate of up to 95% COD. Through scavenger studies, the main role of ˙OH was demonstrated. Therefore, highly efficient and recyclable NiFe 2 O 4 /g-C 3 N 4 can be a potential photocatalyst for degradation of dyes.
Competing Interests: The authors declare that there are no conflicts of interest.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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