Electrocatalytic conversion of SO2 into high-value ferric persulfate and H2O2

doi:10.1016/j.apcatb.2025.125077

	Electrocatalytic conversion of SO2 into high-value ferric persulfate and H2O2
	Li, Lei 1; Zhang, Yan 1; Bai, Jing 1,4; Lang, Junyu2 ; Zhou, Tingsheng 1; Wang, Jiachen 1; Xie, Chaoyue 1; Zhou, Changhui 1; Li, Jinhua 1; Mao, Shun 3,4; Long, Mingce 1,4; Zhou, Baoxue 1,4
	2025-06-05
发表期刊	APPLIED CATALYSIS B: ENVIRONMENTAL (IF:20.2[JCR-2023],18.9[5-Year])
ISSN	0926-3373
EISSN	1873-3883
卷号	366
发表状态	已发表
DOI	10.1016/j.apcatb.2025.125077
摘要	Sulfur dioxide (SO2) is a harmful pollutant present in flue gas, necessitating urgent mitigation efforts. Converting SO2 to persulfate represents an attractive approach; however, low generation selectivity in producing persulfate from alkaline-absorbed SO2 presents a significant obstacle. Herein, we propose a novel Fe(III) oxidation-mediated SO2 conversion strategy for the simultaneous electrochemical synthesis of high-value ferric persulfate (FPS) and hydrogen peroxide (H2O2), offering a triple-function strategy. Initially, SO2 is captured by cost-effective and abundant Fe(III), then routed to FPS via electrocatalytic oxidation to sulfate radicals (SO4•−) on a boron-doped diamond anode. Simultaneously, H2O2 is produced on a ZrO2/CMK-3 cathode. As demonstrated, the S2O82- yield (23.8 mg·cm−2·h−1) and H2O2 yield (11.7 mg·cm−2·h−1) exhibit dual high-efficiency performance, substantially exceeding that of most other reported single synthesis systems, respectively. In-situ Raman and theoretical calculations reveal that the HSO4− pathway is the primary kinetic route for persulfate generation. Moreover, the FPS product demonstrates exceptional removal of recalcitrant organics due to the synergistic advanced oxidation of persulfate and flocculation of Fe(III). This work offers a promising and sustainable solution for the resource conversion of SO2 exhaust and simultaneous hydrogen peroxide production. © 2025
关键词	Electrochemical oxidation Advanced oxidation Alkalines Electrocatalytic Electrochemical synthesis Fe(III)-mediated oxidation Ferric persulphate production H2O2 production Persulphate SO 2 SO2 conversion
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收录类别	EI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China["22176125","22206123","22076121","22178220"]
WOS研究方向	Chemistry ; Engineering
WOS类目	Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:001425099400001
出版者	Elsevier B.V.
EI入藏号	20250417736855
EI主题词	Sulfur dioxide
EI分类号	801.3.1 ; 802.2 Chemical Reactions ; 804.2 Inorganic Compounds
原始文献类型	Journal article (JA)
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/483856
专题	物质科学与技术学院物质科学与技术学院_PI研究组_杨永组
通讯作者	Bai, Jing
作者单位	1.School of Environmental Science and Engineering, National Observation and Research Station of Erhai Lake Ecosystem in Yunnan, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai; 200240, China; 2.School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China; 3.School of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai; 200092, China; 4.Shanghai Institute of Pollution Control and Ecological Security, Shanghai; 200092, China
推荐引用方式 GB/T 7714	Li, Lei,Zhang, Yan,Bai, Jing,et al. Electrocatalytic conversion of SO2 into high-value ferric persulfate and H2O2[J]. APPLIED CATALYSIS B: ENVIRONMENTAL,2025,366.
APA	Li, Lei.,Zhang, Yan.,Bai, Jing.,Lang, Junyu.,Zhou, Tingsheng.,...&Zhou, Baoxue.(2025).Electrocatalytic conversion of SO2 into high-value ferric persulfate and H2O2.APPLIED CATALYSIS B: ENVIRONMENTAL,366.
MLA	Li, Lei,et al."Electrocatalytic conversion of SO2 into high-value ferric persulfate and H2O2".APPLIED CATALYSIS B: ENVIRONMENTAL 366(2025).