First Author:Ying Guo

Correspondence Author:Dun Niu, Hong-bin Sun

Co author:Xinyue Zhang, Nianyi Xie, Rongxiu Guo, Yao Wang, Zejun Sun, Hong Li, Hongna Jia

Journal:Dalton Transactions

Issue:39

Volume:50

Impact Factor:3.5

DOI number:10.1039/d1dt01895g

Affiliation of Author(s):Department of Chemistry, Northeastern University

Teaching and Research Group:物理化学

Place of Publication:ENGLAND

Abstract:A zirconium-porphyrin based organic framework PCN-222 was employed for investigating the adsorption performance of Sb(iii) in aqueous solution. It is proved that the adsorbent has the advantages of rapid adsorption and high capacity. Interestingly, we discover that PCN-222 shows pH-dependent adsorption performance, with higher capacity at pH = 2 and 8 than at pH = 5. According to XPS and FT-IR analyses, an adsorption model of PCN-222 with pH = 2, 5, and 8 is proposed, that is, zirconium clusters combine with antimony at different pH values with bidentate complexes, monodentate complexes, and alkaline monodentate complexes, thus producing an excellent adsorption effect. Moreover, the porphyrin ring is also beneficial for the adsorption of antimony. In addition, PCN-222 shows good regeneration and recycling performance, and it is a promising adsorbent as well as a platform for investigating the removal of Sb(iii) in water treatment.

Document Code:WOS:000696317100001

Discipline:Natural Science

First-Level Discipline:Chemistry

Page Number:13932-13942

ISSN No.:1477-9226

Translation or Not:no