Spatial confined synthesis of submicron Fe-MoS2 with abundant surface cationic groups and sulfur vacancies for enhanced peroxymonosulfate activation

The widespread use of emerging refractory organic contaminants poses a significant threat to human health, prompting the need for a cost-effective and efficient removal strategy. While the iron ions/PMS system effectively removes organic pollutants, slow Fe3+ to Fe2+ transformation hampers its effic...

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Publié dans:	Environmental technology. - 1993. - 46(2025), 10 vom: 30. Apr., Seite 1561-1572
Auteur principal:	Liang, Shikun (Auteur)
Autres auteurs:	Ying, Yunzhan, Xu, Xiangwei, Qian, Chengbo, Jiang, Long, Zhou, Jing, Wan, Yulong, Wang, Lie, Yao, Yuyuan
Format:	Article en ligne
Langue:	English
Publié:	2025
Accès à la collection:	Environmental technology
Sujets:	Journal Article Molybdenum disulfide heterogeneous iron catalysts peroxymonosulfate spatial confined synthesis Sulfur 70FD1KFU70 22047-43-4 Iron E1UOL152H7 plus... Water Pollutants, Chemical Molybdenum 81AH48963U Peroxides Disulfides molybdenum disulfide ZC8B4P503V Cations


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100	1		\|a Liang, Shikun \|e verfasserin \|4 aut
245	1	0	\|a Spatial confined synthesis of submicron Fe-MoS2 with abundant surface cationic groups and sulfur vacancies for enhanced peroxymonosulfate activation
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500			\|a Date Revised 23.04.2025
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520			\|a The widespread use of emerging refractory organic contaminants poses a significant threat to human health, prompting the need for a cost-effective and efficient removal strategy. While the iron ions/PMS system effectively removes organic pollutants, slow Fe3+ to Fe2+ transformation hampers its efficiency, and the homogeneous distribution of iron ions complicates separation, resulting in secondary sludge pollution. Herein, we developed a novel submicron Fe-MoS2 (S-Fe-MoS2) catalyst with abundant surface cationic groups and sulfur vacancy through a cationic polyacrylamide aerogels (CPAMA) confined hydrothermal synthesis strategy. These features promote active site exposure, enhance reactant adsorption, and accelerate electron transfer between Mo and Fe sites, improving catalytic kinetics and promoting Fe3+/Fe2+ cycle for PMS activation. As a result, the S-Fe-MoS2/PMS system exhibited a high catalytic rate constant (kobs) of 0.32 min-1, in the degradation of 4-chlorophenol (4-CP), 1.5 times higher than that of the conventional Fe-MoS2/PMS system. It also achieved 82.9% total organic carbon (TOC) degradation within 60 min. Additionally, it possessed similar degradation performance for various organic pollutants, along with remarkable reusability (four cycles) and broad pH adaptability (2-8), indicating significant potential for widespread application. This study provided a new way for developing advanced heterogeneous catalysts with high efficiency for water treatment
650		4	\|a Journal Article
650		4	\|a Molybdenum disulfide
650		4	\|a heterogeneous iron catalysts
650		4	\|a peroxymonosulfate
650		4	\|a spatial confined synthesis
650		7	\|a Sulfur \|2 NLM
650		7	\|a 70FD1KFU70 \|2 NLM
650		7	\|a peroxymonosulfate \|2 NLM
650		7	\|a 22047-43-4 \|2 NLM
650		7	\|a Iron \|2 NLM
650		7	\|a E1UOL152H7 \|2 NLM
650		7	\|a Water Pollutants, Chemical \|2 NLM
650		7	\|a Molybdenum \|2 NLM
650		7	\|a 81AH48963U \|2 NLM
650		7	\|a Peroxides \|2 NLM
650		7	\|a Disulfides \|2 NLM
650		7	\|a molybdenum disulfide \|2 NLM
650		7	\|a ZC8B4P503V \|2 NLM
650		7	\|a Cations \|2 NLM
700	1		\|a Ying, Yunzhan \|e verfasserin \|4 aut
700	1		\|a Xu, Xiangwei \|e verfasserin \|4 aut
700	1		\|a Qian, Chengbo \|e verfasserin \|4 aut
700	1		\|a Jiang, Long \|e verfasserin \|4 aut
700	1		\|a Zhou, Jing \|e verfasserin \|4 aut
700	1		\|a Wan, Yulong \|e verfasserin \|4 aut
700	1		\|a Wang, Lie \|e verfasserin \|4 aut
700	1		\|a Yao, Yuyuan \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Environmental technology \|d 1993 \|g 46(2025), 10 vom: 30. Apr., Seite 1561-1572 \|w (DE-627)NLM098202545 \|x 1479-487X \|7 nnas
773	1	8	\|g volume:46 \|g year:2025 \|g number:10 \|g day:30 \|g month:04 \|g pages:1561-1572
856	4	0	\|u http://dx.doi.org/10.1080/09593330.2024.2391076 \|3 Volltext
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