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

Autor: Bodkhe GA; RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India., Hedau BS; RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India., Deshmukh MA; RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India., Patil HK; RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India., Shirsat SM; Department of Electronics and Telecommunication Engineering, Jawaharlal Nehru Engineering College, Aurangabad, India., Phase DM; UGC-DAE Consortium for Scientific Research, University Campus, Indore, India., Pandey KK; High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Center, Mumbai, India., Shirsat MD; RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India.
Jazyk: angličtina
Zdroj: Frontiers in chemistry [Front Chem] 2020 Oct 15; Vol. 8, pp. 803. Date of Electronic Publication: 2020 Oct 15 (Print Publication: 2020).
DOI: 10.3389/fchem.2020.00803
Abstrakt: In the present investigation, copper benzene tricarboxylate metal organic frameworks (CuBTC MOF) and Au nanoparticle incorporated CuBTC MOF (Au@CuBTC) were synthesized by the conventional solvothermal method in a round bottom flask at 105°C and kept in an oil bath. The synthesized CuBTC MOF and Au@CuBTC MOFs were characterized by structure using X-ray diffraction (XRD) spectroscopic methods including Fourier Transform Infrared spectroscopy, Raman Spectroscopy, X-ray Photoelectron Spectroscopy (XPS), and Energy dispersive spectroscopy (EDS). We also characterized them using morphological techniques such as Field emission scanning electron microscopy (FE-SEM), and electrochemical approaches that included cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). We examined thermal stability by thermogravimetric analysis (TG/DTA) and N 2 adsorption-desorption isotherm by Brunauer-Emmett-Teller (BET) surface area method. Both materials were tested for the detection of lead (II) ions in aqueous media. Au nanoparticle incorporated CuBTC MOF showed great affinity and selectivity toward Pb 2+ ions and achieved a lower detection limit (LOD) of 1 nM/L by differential pulse voltammetry (DPV) technique, which is far below than MCL for Pb 2+ ions (0.03 μM/L) suggested by the United States (U.S.) Environmental Protection Agency (EPA) drinking water regulations.
(Copyright © 2020 Bodkhe, Hedau, Deshmukh, Patil, Shirsat, Phase, Pandey and Shirsat.)
Databáze: MEDLINE
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