Catalytic degradation of organic pollutants for water remediation over Ag nanoparticles immobilized on amine-functionalized metalorganic frameworks
作者机构：Liaoning Key Lab of Lignocellulose Chemistry and BioMaterialsLiaoning Collaborative Innovation Center for Lignocellulosic BiorefineryCollege of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalian 116034China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2022年第15卷第9期
页 面：7887-7895页
核心收录：
学科分类：0808[工学-电气工程] 081704[工学-应用化学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学]
基 金：the National Natural Science Foundation of China(No.51961125207) Dalian Support Plan for Innovation of High-level Talents(Nos.2019RQ034 and 2019RD13) Liaoning Revitalization Talents Program(Nos.XLYC2007104 and XLYC1901004) Opening Project of Guangxi Key Laboratory of Clean Pulp&Papermaking and Pollution Control(No.2019KF14) Liaoning Baiqianwan Talents Program(No.2021921087)
主 题：Ag/UiO-66-NH_(2) catalytic degradation organic pollutants 4-nitrophenol water remediation
摘 要：Developing efficient catalysts for organic pollutants degradation is crucial for remediating the current severe water environment,yet remains a great ***,we report silver nanoparticles immobilized on an amine-functionalized metal-organic framework(MOFs)(Ag/UiO-66-NH_(2))as a robust catalyst for the reduction of 4-nitrophenol(4-NP).The fabricated Ag/UiO-66-NH_(2)catalyst exhibits the merits of superior activities(high turnover frequency(TOF)3.2×10^(4)h^(-1)and k value 6.9×10^(-2)s^(-1)),costeffectiveness under the lowest NaBH4 concentration(n[NaBH_(4)]/n[4-NP],200),outstanding cyclability(10 recycling runs),and observable long-term durability,significantly outperforming previously reported catalytic *** excellent degradation efficiency is ascribed to the favorable microenvironment modulation of unique MOF structure,which regulates the intrinsic properties of active sites and improves the electron-transfer ***,the Ag/UiO-66-NH_(2)also promotes the catalytic degradation of several organic pollutants at room temperature and hence could find a broad application for water *** work offers a new avenue for the development of high-performance MOF-based catalysts with excellent activity and durability.
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