عنوان مجله
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Journal of Water Process Engineering
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کلیدواژهها
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Modified GO, Adsorption, Bactericidal activity, Aniline, Aquatic environment
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چکیده
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In this work, Cu2+-binded graphene oxide (Cu2+-GO) as a modified form of GO was prepared and characterized
using FTIR, XRD, SEM, EDX and TEM techniques. The modified GO showed an increased antibacterial activity
based on its minimum inhibitory concentrations (MIC) against several bacterial strains. It exhibited a high
capacity for adsorption of Aniline as compared to pristine GO with almost no adsorption. Maximum adsorption
of Aniline by Cu2+-GO was observed at neutral pH range. The results of kinetic studies revealed that the process
of Aniline adsorption is rather fast and follows a pseudo-second-order rate model. The adsorption isotherm data
were fitted well to non-linear form of the Langmuir model with maximum adsorption capacity (qm) of 79.3 mg/g.
A mechanism of chemisorption was proposed for removal of Aniline by Cu2+-GO based on the experimental
results. An acceptable performance of selectivity was observed for Aniline adsorption by Cu2+-GO in the presence
of higher concentrations of natural waters common anions. It also showed a desired performance for
adsorptive removal of Aniline from a simulated real sample of polluted water. The results of this study exhibited
that Cu2+-GO can be used for practical purposes such as water treatment plants and drinking water disinfection
filters.
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