| 类水滑石的插层改性及其对沼液中磷的吸附分离 |
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| 引用本文： | 郁强强,张志榕,郑杨清,郑艳梅,王海涛,王远鹏,何宁,李清彪.类水滑石的插层改性及其对沼液中磷的吸附分离[J].厦门大学学报(自然科学版),2015,54(1):25-30. |
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| 作者姓名： | 郁强强 张志榕 郑杨清 郑艳梅 王海涛 王远鹏 何宁 李清彪 |
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| 作者单位： | 1. 厦门大学化学化工学院,福建厦门,361005
2. 厦门大学化学化工学院,福建厦门361005;泉州师范学院化学与生命科学学院,福建泉州362000 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目 |
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| 摘 要： | 通过恒定pH法成功合成了均苯四甲酸插层的锌铝类水滑石(Zn2Al-PMA-LDHs),考察了它的特征结构及组成通式,并对沼液中磷的吸附性能进行了研究.结果表明,Zn2Al-PMA-LDHs对四川遂宁沼气工程所产沼液中磷的吸附性能要大大优于未插层的锌铝类水滑石(Zn2Al-Cl-LDHs).当吸附剂用量为0.1g/L时,Zn2Al-PMA-LDHs在4h内,对沼液中磷的吸附量由未插层前的11.58mg/g提高了约248%,达到40.31mg/g.同时该吸附剂对沼液中磷酸根的吸附过程符合准二级吸附动力学模型,吸附等温线表现为Langmuir型.用0.1 mol/L NaOH溶液对吸附后的Zn2Al-PMALDHs进行解吸再生,经过4个循环周期,其对沼液中磷的吸附量仍能达到首次吸附量的70%左右.
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| 关 键 词： | 锌铝类水滑石 均苯四甲酸 沼液 磷 吸附 |
Preparation of Intercalated Layered Double Hydroxides and Its Adsorption of Phosphate in Biogas Slurry |
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| YU Qiang-qiang;ZHANG Zhi-rong;ZHENG Yang-qing;ZHENG Yan-mei;WANG Hai-tao;WANG Yuan-peng;HE Ning;LI Qing-biao.Preparation of Intercalated Layered Double Hydroxides and Its Adsorption of Phosphate in Biogas Slurry[J].Journal of Xiamen University(Natural Science),2015,54(1):25-30. |
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| Authors: | YU Qiang-qiang;ZHANG Zhi-rong;ZHENG Yang-qing;ZHENG Yan-mei;WANG Hai-tao;WANG Yuan-peng;HE Ning;LI Qing-biao |
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| Institution: | YU Qiang-qiang;ZHANG Zhi-rong;ZHENG Yang-qing;ZHENG Yan-mei;WANG Hai-tao;WANG Yuan-peng;HE Ning;LI Qing-biao;College of Chemistry and Chemical Engineering,Xiamen University;College of Chemistry and Life Science,Quanzhou Normal University; |
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| Abstract: | |
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| Keywords: | ZnAl layered double hydroxides pyromellitic acid biogas slurry phosphate adsorption |
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