Efficient Pb(II) removal using sodium alginate-carboxymethyl cellulose gel beads: Preparation, characterization, and adsorption mechanism
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- 作者：Huixue Rena ; renhx138@163.com" class="auth_mail" title="E-mail the corresponding author ; Zhimin Gaoa ; Daoji Wua ; b ; wdj@sdjzu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Jiahui Jianga ; Youmin Suna ; Congwei Luob
- 关键词：Sodium alginate (PubChem CID ; 6850754) ; Sodium carboxymethyl cellulose (PubChem CID ; 6328154) ; Lead nitrate (PubChem CID ; 24924) ; Iron trichloride (PubChem CID ; 24380) ; Calcium chloride (PubChem CID ; 5284359)
- 刊名：Carbohydrate Polymers
- 出版年：2016
- 出版时间：10 February 2016
- 年：2016
- 卷：137
- 期：Complete
- 页码：402-409
- 全文大小：1158 K
文摘
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Synthesis of SA–CMC–Ca–Fe gel beads through cross-linking beading of SA and CMC in CaCl2 and FeCl3 solutions.
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SA–CMC gel bead shows larger specific surface area and porosity due to the internal network structure.
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The lead ions’ removal rate by SA–CMC is significantly better than the conventional adsorbents.
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The high Pb2+ adsorption capacity of SA–CMC was discussed by different adsorption isotherms.
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Based on different kinetic study, chemical adsorption is the main adsorption process of Pb2+ adsorption of SA–CMC gel beads.