Magnetic beads embedded in poly (sodium-p-styrenesulfonate) and ZIF-67: Removal of nitrophenol from water

被引：38

作者：

Yang, Qingxiang ^{[1
]}

Lu, Ran ^{[1
]}

Ren, ShuangShuang ^{[1
]}

Zhou, Huimin ^{[1
]}

Wu, Qingxian ^{[1
]}

Zhen, Yaoyao ^{[1
]}

Chen, Zhijun ^{[1
]}

Fang, Shaoming ^{[1
]}

机构：

[1] Zhengzhou Univ Light Ind, Henan Collaborat Innovat Ctr Environm Pollut Cont, Sch Mat & Chem Engn, Henan Prov Key Lab Surface & Interface Sci, Zhengzhou 450002, Henan, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2018年 / 265卷

基金：

中国国家自然科学基金;

关键词：

ZIF-67; Magnetic particles; Adsorption; Nitrophenol; METAL-ORGANIC FRAMEWORKS; ZEOLITIC IMIDAZOLATE FRAMEWORK-8; ADSORPTIVE REMOVAL; NANOCRYSTALS; PERFORMANCE; DYES; MICROSPHERES; DEGRADATION; FABRICATION; PRECURSORS;

D O I：

10.1016/j.jssc.2018.06.006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Owing to the diverse structures and unique characteristics of MOFs, the combination of magnetic particles with porous MOFs is an attractive way for rapid and efficient extraction of organic pollutions from water. In this work, the magnetic porous composites, Fe3O4-PSS@ZIF-67 (PSS, poly (sodium-p-styrenesulfonate)), were prepared. The obtained composites exhibit core-shell structure, for which the spherical Fe3O4 particles as core are embedded in ZIF-67 shell. The existence of SO3- anions on poly (sodium-p-styrenesulfonate) is the key factor for the uniform coating of ZIF-67 on Fe3O4 particles. Poly (sodium-p-styrenesulfonate) providing enough chelating sites (-SO3-) for Co2+ which could further coordinate with 2-methylimidazole to form ZIF-67. This work further studied the adsorption property of 2-nitroresorcinol in aqueous solution, using Fe3O4-PSS@ZIF-67 as adsorbents. The equilibrium adsorption capacity for 2-nitroresorcinol is up to 52.50 mg g(-1). The adsorption kinetics were investigated. The mechanism could be attributed to the electrostatic interaction between 2-nitroresorcinol and Fe3O4-PSS@ZIF-67 composites.

引用

页码：200 / 207

页数：8

共 55 条

[1] Synthesis of amine-modified zeolitic imidazolate framework-8, ultrasound-assisted dye removal and modeling [J].