Removal of Arsenic(III) from Water with a Combination of Graphene Oxide (GO) and Granular Ferric Hydroxide (GFH) at the Optimum Molecular Ratio
نویسندگان
چکیده
The occurrence of arsenic in water is a global problem for public health. Several removal technologies have been developed from water, and adsorption onto iron oxy-hydroxides the most widely used technique. Granular ferric hydroxide (GFH) has mainly As(V) removal, but it disadvantage that can create with residual concentration water. Moreover, graphene oxide (GO), which contains large amount reactive oxygen, exhibits high adsorbing capacity. In this study, combined use GO GFH as adsorbent materials different molar ratios was investigated order to achieve maximum As(III) aqueous solutions. effect adsorbent’s dosage, pH value, contact time, initial As(III), GO/GFH examined. As depicted, presence enhances GO. particular, ratio 2:1 (i.e., 0.2 g/L 0.1 GFH) chosen optimal at value 7.0 ± 0.1, while percentage increased 10 % (absence 90% simultaneous addition GFH. Freundlich isotherm pseudo-second-order kinetic models described experimental data adequately highest capacity achieved 22.62 μg/g.
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ژورنال
عنوان ژورنال: C
سال: 2023
ISSN: ['2311-5629']
DOI: https://doi.org/10.3390/c9010010