Enhancing phosphate adsorption by Mg/Al layered double hydroxide functionalized biochar with different Mg/Al ratios
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- 作者：Ronghua Lia ; b ; Jim J. Wangb ; JJWang@agcenter.lsu.edu" class="auth_mail" title="E-mail the corresponding author ; Baoyue Zhoub ; Mukesh Kumar Awasthia ; c ; Amjad Alia ; Zengqiang Zhanga ; Lewis A. Gastonb ; Altaf Hussain Lahoria ; Amanullah Mahara ; d
- 关键词：Phosphate ; adsorption ; layered double hydroxides ; biochar ; Mg/Al ratio
- 刊名：Science of the Total Environment
- 出版年：2016
- 出版时间：15 July 2016
- 年：2016
- 卷：559
- 期：Complete
- 页码：121-129
- 全文大小：1766 K
文摘
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Mg/Al-LDHs modified biochar with Mg/Al ratio 2, 3 and 4 were prepared.
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Modification significantly improved biochar's phosphate adsorption performance.
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Higher Mg/Al ratio increased LDHs interlayer space and biochar phosphate adsorption.
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Adsorption maximum of 4:1 Mg/Al-LDHs biochar was 81.83 mg P/g at pH 3.
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Inorganic anions decreased phosphate adsorption in order of F− > SO42 − > NO2− >Cl−.