首页|Recyclable hydrolyzed polymers of intrinsic microporosity-1/Fe3O4 magnetic composites as adsorbents for selective cationic dye adsorption

Recyclable hydrolyzed polymers of intrinsic microporosity-1/Fe3O4 magnetic composites as adsorbents for selective cationic dye adsorption

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Polymers of intrinsic microporosity shows great potential for dye adsorption and magnetic Fe3O4 are easy to be separated.In this work,hydrolyzed polymers of intrinsic microporosity-1/Fe3O4 composite adsorbents were prepared by phase inversion and hydrolysis process for cationic dye adsorption.The chemical structure and morphology of the composite adsorbents were systema-tically characterized by several characterization methods.Using methylene blue as the target dye,the influences of solution pH,contact time,initial dye concentration,and system temperature on the methylene blue adsorption process were investigated.The incorporation of Fe3O4 particle into hydrolyzed polymers of intrinsic microporosity-1 endow the adsorbent with high magnetic saturation(20.7 emu·g-1)which allows the rapid separation of the adsorbent.Furthermore,the adsorption process was simulated by adsorption kinetics,isotherms and thermodynamics to gain insight onto the intrinsic adsorption mechanism.In addition,the composite adsor-bents are able to selectively adsorb cationic dyes from mixed dyes solution.Hydrolyzed polymers of intrinsic microporosity/Fe3O4 shows only a slight decrease for methylene blue adsorption after 10 adsorption/regeneration cycles,demonstrating the outstanding regeneration performance.The high adsorption capacity,outstanding regeneration ability,together with simple preparation method,endow the composite adsorbents great potential for selective removal of cationic dyes in wastewater system.

polymers of intrinsic microporositymagnetic adsorbentcationic dye adsorption

Feng Zhang、Shuainan Xu、Xiumei Geng、Meixia Shan、Yatao Zhang

展开 >

School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaChina Postdoctoral Science FoundationExcellent Youth Foundation of Henan Scientific CommitteeKey Scientific Research Project of Universities in Henan Province

22178327520032502020M68235122230042001821zx006

2024

10.1007/s11705-024-2386-4

化学科学与工程前沿
高等教育出版社

化学科学与工程前沿

CSTPCDEI
影响因子：0.172
ISSN：2095-0179
年,卷(期)：2024.18(2)
  • 49