A Superb Iron-Based Glassy-Crystal Alloy Fiber as an Ultrafast and Stable Catalyst for Advanced Oxidation  

作　　者：Sida Jiang Guanyu Cao Zhe Jia Ligang Sun Chen Wang Hongbo Fan Yonghui Wang Weizhi Xu Yifan Cui Zhiliang Ning Jianfei Sun Jianhua Li Xiaobin Tang Heng Liang E.Peng 

机构地区：[1]National Key Laboratory of Space Environment and Matter Behaviors,Harbin Institute of Technology,Harbin 150001,China [2]School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China [3]School of Materials Science and Engineering,Jiangsu Key Laboratory for Advanced Metallic Materials,Southeast University,Nanjing 211189,China [4]School of Science,Harbin Institute of Technology,Shenzhen 518055,China [5]School of Physics,Harbin Institute of Technology,Harbin 150001,China [6]Beijing Engineering Research Center of Detection and Application for Weak Magnetic Field,Department of Physics,University of Science and Technology,Beijing,Beijing 100083,China [7]State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150001,China

出　　处：《Advanced Fiber Materials》2024年第5期1483-1494,共12页先进纤维材料（英文）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.52271028,52201174,12002108,52071118,51827801);the China Postdoctoral Science Foundation(Grant Nos.2019M661275 and 2020T130030ZX);the National Key Research and Development Program of China(Grant No.2022YFA1604600);the Funds of Frontier Research Center of Space Environment Interacting with Matter(Harbin Institute of Technology);the Natural Science Foundation of Heilongjian Province(Grant No.LH2022D017);the Natural Science Foundation of Jiangsu Province(Grant No.BK20220858);the Guangdong Basic and Applied Basic Research Foundation(Grant No.2022A1515011402);the Fundamental Research Funds for the Central Universities(Grant No.HIT.BRET.2023FRFK06001).

摘　　要：Waterborne organic pollutants pose significant threats to ecosystems and the health of billions worldwide,presenting a pressing global challenge.Advanced oxidation processes(AOPs)offer promise for efficient wastewater treatment,yet the efficacy and the reliability of current environmental catalysts hinder their widespread adoption.This study developed an as-cast nanostructured glassy fiber capable of rapidly activating persulfate and achieved the degradation of diverse organic contaminants within 60 s using the as-prepared fiber.The material is relatively robust and can be reused about 40 times.The exceptional catalytic performance of the fibers stemmed from their low atomic coordination numbers,which facilitated the generation of numerous unsaturated active sites and accelerated radical production rates through a one-electron transfer mechanism.Additionally,the glassy-nanocrystalline heterogeneous interface,achieved through our proposed nanostructur-alization approach,exhibited electron delocalization behavior.This enhanced persulfate adsorption and reduced the energy barrier for heterolytic cleavage of peroxy bonds.These findings present a novel avenue for the rational structural design of high-performance environmental catalysts for advanced water remediation.

关 键 词：Glassy-crystal alloy NANOCRYSTALLIZATION Heterogeneous interface Atomic configuration Water remediation 

分 类 号：O64[理学—物理化学]