张明月,李锋民,卢伦,顾书瑞

• 1:中国海洋大学环境科学与工程学院

摘要(Abstract)：

本文选取湿地植物芦苇作为原材料,在不同热解温度下(300~600℃),利用限氧升温炭化法制备成生物炭,通过元素分析、比表面积测定、红外光谱分析、X射线衍射分析、Zeta电位等方法研究其物理化学特征以及对亚甲基蓝的吸附特性。研究发现,当固液比为6g·L-1时,芦苇生物炭吸附亚甲基蓝的平衡时间为24h,其中,500℃下热解制备的生物炭吸附能力最强,其最大吸附量达到了5.030mg·g-1;当溶液的初始pH升高时,芦苇生物炭对亚甲基蓝的平衡吸附量随之增加并最终趋向稳定,其最佳pH为8~9;当背景溶液中的离子强度增加时,芦苇生物炭对亚甲基蓝的平衡吸附量略有减少,降幅范围为5%~22%;Langmuir等温线模型对吸附数据具有很好的拟合水平(R2>0.99),说明芦苇生物炭对亚甲基蓝的吸附为单分子层吸附。

关键词(KeyWords)： 芦苇生物炭;亚甲基蓝;吸附

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51378480);; 国家水体污染控制与治理重大科技专项(2012ZX07203004)资助~~

作者(Author): 张明月,李锋民,卢伦,顾书瑞

DOI: 10.16441/j.cnki.hdxb.20160043

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