AI Article Synopsis
- The study focuses on creating micron-sized poly(vinylbenzyl chloride) beads and modifying them to enhance their adsorption capabilities for contaminants.
- The modified beads effectively removed organic dyes and heavy metal ions from water, showcasing their potential as water treatment adsorbents.
- The adsorption process followed the Langmuir model, indicating high efficiency in removing arsenate and dichromate ions from various water sources.
Article Abstract
In this study, the synthesis of micron-sized poly(vinylbenzyl chloride) (p(VBC)) beads and subsequent conversion of the reactive chloromethyl groups to double amidoxime group containing moieties by post modification is reported. The prepared beads were characterized by SEM and FT-IR spectroscopy. The amidoximated p(VBC) beads were used as adsorbent for the removal of organic dyes, such as eosin y (EY) and methyl orange (MO), and heavy metals containing complex ions such as dichromate (Cr2O7(2-)) and arsenate (HAsO4(2)(-)) from aqueous media. The effect of the adsorbent dose on the percent removal, the effect of initial concentration of adsorbates on the adsorption rate and their amounts were also investigated. The Langmuir, Freundlich and Temkin adsorption isotherms were applied to the adsorption processes. The results indicated that the adsorption of both dichromate and arsenate ions obeyed the Langmuir adsorption model. Interestingly, it was found that the prepared beads were capable of removing significant amounts of arsenate and dichromate ions from tap and river (Sarıcay, Canakkale-Turkey) water.
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| http://dx.doi.org/10.1016/j.jcis.2016.02.040 | DOI Listing |
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