[1]雷春生,朱晓峰.不同形貌γ-AlOOH的制备及刚果红吸附试验研究[J].常州大学学报(自然科学版),2016,(03):42.[doi:10.3969/j.issn.2095-0411.2016.03.009]
　LEI Chunsheng,ZHU Xiaofeng.Preparation of Different Morphology of γ-AlOOH and Their Adsorption Performance to Congo Red in Water[J].Journal of Changzhou University(Natural Science Edition),2016,(03):42.[doi:10.3969/j.issn.2095-0411.2016.03.009]
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不同形貌γ-AlOOH的制备及刚果红吸附试验研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2016年03期
页码:
42
栏目:
环境科学与工程
出版日期:
2016-05-30

文章信息/Info

Title:
Preparation of Different Morphology of γ-AlOOH and Their Adsorption Performance to Congo Red in Water
作者:
雷春生1; 2; 朱晓峰1
1. 常州大学 环境与安全工程学院,江苏 常州 213164; 2. 武汉理工大学 材料复合新技术国家重点实验室,湖北 武汉 430070
Author(s):
LEI Chunsheng1; 2;  ZHU Xiaofeng1
1. School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China; 2. State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Techology, Wuhan 430070, China
关键词:
γ-AlOOH;  空心微球;  分等级结构;  刚果红;  吸附
Keywords:
γ-AlOOH;  hollow microsphere;  hierarchical structure;  Congo red;  adsorption
分类号:
TQ 316.334
DOI:
10.3969/j.issn.2095-0411.2016.03.009
文献标志码:
A
摘要:
以硝酸铝为铝源、尿素、硫酸钠、十六烷基三甲基溴化铵为沉淀剂,采用水热法分别合成空心微球、针状和层状的γ-AlOOH。通过X射线衍射(XRD)、扫描电子显微镜(SEM)和N2吸附-脱附技术对γ-AlOOH样品进行表征测试。结果表明:3种不同形貌的γ-AlOOH均为正交晶相,其中空心微球状具有分等级孔结构,比表面积最大,达到82.5 m2·g-1,吸附量最大,达到504.54 mg·g-1; 而针状和层状主要为狭缝型孔结构。3种样品对刚果红动力学吸附数据符合准二级动力学模型和离子内扩散模型,热力学吸附数据符合Langmuir等温线模型。
Abstract:
Hollow microspheres, needle-like and lamellar γ-AlOOH were synthesized by hydrothermal method, respectively, using aluminium nitrate as precursors and urea sodium sulfate and CTAB as precipitating agent. The structure, morphology and textural properties of the γ-AlOOH samples were characterized by X-ray diffraction, scanning electron microscopy and N2 adsorption-desorption techniques. It was found that all samples were orthorhombic γ-AlOOH; γ-AlOOH hollow microspheres had unique hierarchically porous structure and high specific surface areas(82.5 m2·g-1); It exhibited excellent sorption capacity(504.54 mg·g-1)for Conge red; Needle-like and lamellar γ-AlOOH were mainly of slit-shape porous structure. The pseudo-second order and intra-particle diffusion model could describe the adsorption kinetics. The Langmuir model showed the better correlation of the experimental data.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-06-09。基金项目:国家自然科学基金资助项目(51208068)。作者简介:雷春生(1978—),男,湖南衡阳人,博士生,副教授,主要从事纳米吸附材料研究。
更新日期/Last Update: 2016-05-20