第一作者：Ying Guo

通讯作者：Dun Niu, Hong-bin Sun

合写作者：Xinyue Zhang, Nianyi Xie, Rongxiu Guo, Yao Wang, Zejun Sun, Hong Li, Hongna Jia

发表刊物：Dalton Transactions

期号：39

卷号：50

影响因子：3.5

DOI码：10.1039/d1dt01895g

所属单位：Department of Chemistry, Northeastern University

教研室：物理化学

刊物所在地：ENGLAND

摘要：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.

论文编号：WOS:000696317100001

学科门类：理学

一级学科：化学

页面范围：13932-13942

ISSN号：1477-9226

是否译文：否