Bimodal applications of LDH-chitosan nanocomposite: water treatment and antimicrobial activity

被引：5
|
作者：
Kamal, W. [1 ]
El Rouby, Waleed M. A. [2 ]
El-Gendy, Ahmed O. [3 ]
Farghali, A. A. [2 ]
机构：
[1] Beni Suef Univ BSU, Fac Sci, Dept Chem, Bani Suwayf, Egypt
[2] Beni Suef Univ BSU, Mat Sci & Nano Technol Dept, Fac Postgrad Studies Adv Sci PSAS, Bani Suwayf, Egypt
[3] Beni Suef Univ BSU, Dept Microbiol & Immunol, Fac Pharm, Bani Suwayf, Egypt
来源：
4TH INTERNATIONAL CONFERENCE ON ADVANCED SCIENCES (ICAS) | 2018年 / 464卷
关键词：
Chitosan; LDH; nanocomposite; adsorption; copper; iron; antimicrobial activity; waste water treatment; LAYERED DOUBLE HYDROXIDE; AQUEOUS-SOLUTION; EFFICIENT REMOVAL; WASTE-WATER; COPPER II; IONS; ADSORPTION; BEADS;
D O I：
10.1088/1757-899X/464/1/012005
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Chitosan-LDH (layered doubled hydroxide) composite was prepared for removal heavy metals and antimicrobial activity. It was characterized by Fourier transform infrared spectrometer (FTIR), X-ray diffraction (XRD), Transmission electron microscopy (TEM), Scanning electronic microscope (SEM). Studying various physicochemical parameters such as the effects of pH, adsorbent amount, and contact time for removing heavy metals were performed. The adsorption kinetics and adsorption isotherm model were done to understand the adsorption process. The prepared composite exhibited strong antimicrobial activity against different gram positive (Lactobacillus sakei LMG 2313, Corynebacterium sp, Staphylococcus aureus 5247) and gram negative bacteria (Escherichia coli AO5). Results were recorded in terms of minimum inhibitory concentration (MIC), which is the lowest concentration of antimicrobial/antifungal agent that will inhibit the visible growth of a microorganism after overnight incubation.
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页数：13
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