AUTHOR=Lei Yuanhang , Yang Haibo , Xie Jiangqin , Chen Qi , Quan Wenxuan , Wang Anping 

TITLE=Synthesis of strong magnetic response ZIF-67 for rapid adsorption of Cu2+

JOURNAL=Frontiers in Chemistry

VOLUME=Volume 11 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2023.1135193

DOI=10.3389/fchem.2023.1135193

ISSN=2296-2646

ABSTRACT=With the acceleration of industrialization and urbanization, the global water resources have also been polluted. Among the water pollutants, heavy metals have caused great harm to the environment and organisms. When the concentration of Cu2+in water exceeds the standard, the intake of human body will mainly damage the nervous system. Based on this, we use MOF materials with high chemical stability, high specific surface area, high adsorption and other unique properties to adsorb Cu2+. MOF-67 was prepared with various solvents, and the strongest magnetic response MOF-67 with the best physical and chemical properties was selected. It is used to quickly adsorb low concentration Cu2+ in water to purify water quality. At the same time, it can be quickly recovered through external magnetic field to avoid secondary pollution, which conforms to the concept of green environmental protection. When the initial concentration of Cu2+ is 50 mg/L for 30 min, the adsorption rate reaches 93.4%. The magnetic adsorbent can be reused for 3 times.