期刊
CELLULOSE
卷 26, 期 17, 页码 9179-9206出版社
SPRINGER
DOI: 10.1007/s10570-019-02698-1
关键词
N,N,N-Trimethyl chitosan chloride; Xanthan gum; Interpenetrating polymer network; Adsorption capacity; Antibacterial activity
资金
- National Research Foundation of Korea Grant - Korean Government (MEST) [NRF2019R1I1A3A01063833]
- Hannam University
- Korea Environment Industry & Technology Institute (KEITI) through Technology Development Program for Environmental Industry Advancement - Korea Ministry of Environment (MOE) [RE201805141]
- Cairo University
A facile and green method was utilized for preparing an efficient dual function adsorbent as a filter for capturing crystal violet (CV) dye and an inhibitor for the growth of Escherichia coli based on interpenetrating networks (IPNs) between N,N,N-trimethyl chitosan (TMC) and xanthan gum (XG) in different weight ratios. The IPNs showed an excellent CV dye adsorption capacity (94.4%, Q(max) = 555.6 mg g(-1)) at the optimum conditions chosen in this study, where 40 mg of the adsorbent was used for 50 mL of the 450 mg L-1 CV solution at pH 7, temperature of 30 degrees C and the equilibrium adsorption time of 6 h. The adsorption data were well fitted to the Langmuir isotherm model. The adsorption kinetics exhibited pseudo-first order and intraparticle diffusion model participating in the mechanism of CV adsorption on IPN surface. The antibacterial activity test exhibited that all TMC/XG IPNs inhibited growth of E. coli, suggesting potential application as an antibacterial adsorbent in wastewater treatment. [GRAPHICS] .
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