The efficient adsorption of heavy metal ions from wastewater has become a serious challenge from both environmental and biological viewpoints. Recently, porous metal‐organic frameworks (MOFs), with metallic clusters and organic linkers, have been developed as promising structures in the capture of different toxic and hazardous substances, including heavy metal ions, because of their unique features. Here there is a collection for recent progress in the field of water remediation from the variable‐valent metals in polluted water and the corresponding MOFs which are able to remove these pollutant agents from water. Meanwhile, effective factors in the absorption of metal ions are discussed. MOFs are considered to be a promising candidate for metal ions removal from wastewater.
Metal-organic frameworks are a class of attractive materials for fluorescent sensing. Here, we report the exploration of fluorescent Zn-based amine/azine-functionalized MOF, TMU-17-NH2, ([Zn(NH2-BDC)(4-bpdb)].2DMF; NH2-BDC = amino-1,4-benzenedicarboxylic acid, 4-bpdb = 1,4-bis(4-pyridyl)-2,3-diaza-2,3-butadiene) for highly selective and sensitive detection of Fe 3+ in DMF solution. TMU-17-NH2 shows fast recognition of Fe 3+ ion with a response time of <1 min and detection limit of 0.7 µM (40 ppb), and the luminescence is completely quenched in 10 -3 M DMF solution of Fe 3+ . Furthermore, no interferences from 250 μM As 3+ , Cd 2+ , Zn 2+ , Co 3+ , Ni 2+ , Cu 2+ , Pb 2+ , Mn 2+ and Al 3+ were found for the detection of Fe 3+ , which suggests that the functionalized TMU-17-NH2 is a promising luminescent probe for selectively sensing iron ions.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.