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Synthesis of novel zeolitic imidazolate framework (ZIF-67)-zinc oxide (ZnO) nanocomposite (ZnO@ZIF-67) and potential adsorption of pharmaceutical (tetracycline (TCC)) from water
被引:40
作者:
Ahmadi, S. A. R.
[1
]
Kalaee, M. R.
[1
,2
]
Moradi, O.
[3
]
Nosratinia, F.
[1
]
Abdouss, M.
[4
]
机构:
[1] Islamic Azad Univ, Dept Chem & Polymer Engn, South Tehran Branch, Tehran, Iran
[2] Islamic Azad Univ, Nanotechnol Res Ctr, Tehran South Branch, Tehran 1584743311, Iran
[3] Islamic Azad Univ, Fac Sci, Dept Chem, Shahr e Qods Branch, Tehran, Iran
[4] Amirkabir Univ Technol, Dept Chem, Tehran 158754413, Iran
关键词:
Synthesis;
Novel nanocomposite;
ZnO@ZIF-67;
Pharmaceutical removal;
Tetracycline;
METAL-ORGANIC FRAMEWORK;
ULTRASOUND-ASSISTED SYNTHESIS;
WASTE-WATER;
DYE REMOVAL;
AQUEOUS-SOLUTION;
PHOTOCATALYTIC DEGRADATION;
DIELECTRIC-PROPERTIES;
EFFICIENT ADSORPTION;
OPTICAL DISPERSION;
POLLUTANT;
D O I:
10.1016/j.molstruc.2021.132013
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Herein, novel zeolitic imidazolate framework (ZIF-67) - zinc oxide (ZnO) nanocomposite (ZnO@ZIF-67) was synthesized with different amounts of ZnO (0.03, 0.05, and 0.09 g denoted as ZnOZ (0.03), ZnOZ (0.05), and ZnOZ (0.09), respectively. ZIF-67 and ZnOZs composites were synthesized at room temperature. The synthesized materials including ZIF-67, ZnO, ZnOZ (0.03), ZnOZ (0.05), and ZnOZ (0.09) were characterized by FTIR (Fourier-transform infrared spectroscopy), SEM (scanning electron microscopy), EDX (Energy-dispersive X-ray spectroscopy), XRD (X-ray powder diffraction), and BET (Brunauer-EmmettTeller) analyses and used to remove tetracycline (TCC) as a pharmaceutical pollutant from water. The effect of various parameters including pH, contaminant initial concentration, adsorbent dose, contact time, and temperature from the aqueous medium was also investigated. The adsorption data showed that the TCC removal followed the Langmuir isotherm and pseudo-second-order kinetics. In addition, thermodynamic data indicated that TCC adsorption was a spontaneous and endothermic reaction. It could be concluded that ZnO@ZIF-67 nanocomposite was an acceptable adsorbent for the removal of pharmaceutical contaminant from aqueous media. (c) 2021 Elsevier B.V. All rights reserved.
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页数:12
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