AUTHOR=Bodkhe Gajanan A. , Hedau Bhavna S. , Deshmukh Megha A. , Patil Harshada K. , Shirsat Sumedh M. , Phase Devdatta M. , Pandey Krishan K. , Shirsat Mahendra D. 

TITLE=Detection of Pb(II): Au Nanoparticle Incorporated CuBTC MOFs

JOURNAL=Frontiers in Chemistry

VOLUME=Volume 8 - 2020

YEAR=2020

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2020.00803

DOI=10.3389/fchem.2020.00803

ISSN=2296-2646

ABSTRACT=In the present investigation copper benzene tricarboxylate metal organic frameworks (CuBTC MOF) and Au nanoparticles incorporated CuBTC MOF (Au@CuBTC) was synthesized by conventional solvothermal method in round bottom flask at 105 oC kept in oil bath.  The synthesized CuBTC MOF and Au@CuBTC MOFs were characterized by structural viz. X ray diffraction (XRD); spectroscopic methods viz. Fourier Transform Infrared spectroscopy, Raman Spectroscopy, X-ray Photoelectron Spectroscopy (XPS), Energy dispersive spectroscopy (EDS); morphological viz. Field emission scanning electron microscopy (FE-SEM); Electrochemical viz. cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS); thermal stability by thermogravimetric analysis (TG/DTA) and N2 adsorption – desorption isotherm by Brunauer-Emmett-Teller (BET) surface area method. Both the materials were tested for detection of lead (II) ions in aqueous media. Au nanoparticles incorporated CuBTC MOF shows great affinity, selectivity towards Pb2+ ions and achieved lower detection limit (LOD) of 1 nM/L by differential pulse voltammetry (DPV) technique which is far below the MCL for Pb2+ ions (0.03μM/L) as suggested by United States (U.S.) Environmental Protection Agency's (EPA) drinking water regulation.