Fabrication of Core-Shell Amino-Modified UiO-66@UiO-67 for Catalytic Reduction and Adsorption of Cr (VI)

被引：0
|
作者：
Liu, Yuhao [1 ]
Wang, Xuyi [3 ]
Chen, Jiayue [1 ]
Wang, Hua [2 ]
Cheng, Ming [1 ]
Zheng, Dan [1 ]
Zhang, Beibo [1 ]
Geng, Liang [4 ]
Chen, Liping [2 ]
Jia, Yingbin [2 ]
Wang, Luoxin [2 ]
机构：
[1] Sichuan Acad Silk Sci Co Ltd, Sichuan Silk Engn Technol Ctr, Chengdu 610031, Peoples R China
[2] Wuhan Text Univ, Sch Mat Sci & Engn, Hubei Key Lab New Text Mat & Applicat, Wuhan 430200, Peoples R China
[3] China Bluestar Chengrand Co Ltd, High Tech Organ Fibers Key Lab Sichuan Prov, Chengdu 610041, Peoples R China
[4] Chengdu Text Coll, Sichuan Prov Engn Res Ctr Funct Dev & Applicat Hig, Chengdu 611731, Peoples R China
来源：
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS | 2025年 / 35卷 / 01期
关键词：
NH2-UiO-66@UiO-67; Core-shell Structure MOFs; Catalysis/adsorption Synergy; Cr(VI) Removal; METAL-ORGANIC FRAMEWORK; PHOTOCATALYTIC ACTIVITY; WASTE-WATER; CR(VI); NANOPARTICLES; OXIDATION;
D O I：
10.1007/s10904-024-03298-8
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this work, we synthesized core-shell NH2-UiO-66@UiO-67 via a solvothermal method to achieve controlled assembly of amino-modified UiO-66 and UiO-67 at micro and nano scale. NH2-UiO-66@UiO-67 exhibited notable visible light responsiveness and an increased specific surface area.In addition, it demonstrated outstanding performance in Cr(VI) removal, which can be attributed to the photocatalytic conversion of Cr(VI) into less toxic Cr(III), and the adjustable pores and large specific surface area facilitating Cr(III) adsorption. Notably, it exhibited a robust removal efficiency across a wide pH range of 2.0 to 10.0. Specifically, at pH = 2.0, the Cr(VI) solution with a concentration of 60 mg/L was completely removed within 140 min. The results show that the adsorption of core-shell NH2-UiO-66@UiO-67 meets the pseudo-second-order adsorption kinetics and has the ability of photocatalytic reduction of Cr (VI).
引用
收藏
页码：439 / 448
页数：10
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