Preparation of amine modified layered double hydroxide and its adsorption mechanism for CO<sub>2</sub>

AI Ning; JIANG Zhe; XU Xi; QIAN Qifeng; WU Xi; WANG Jiawei

doi:10.3969/j.issn.0438-1157.2013.02.028

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Preparation of amine modified layered double hydroxide and its adsorption mechanism for CO₂

更新时间：2025-12-10

- Preparation of amine modified layered double hydroxide and its adsorption mechanism for CO₂
- CIESC Journal Issue 2, Pages: 616-623(2013)
- 作者机构：
  
  1. 浙江工业大学化学工程与材料学院,浙江,杭州,310032
  2. 清华大学,化学工程联合国家重点实验室,北京,100084
  3. 宁波诺丁汉大学工程学院,浙江,宁波,315100
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.02.028
  CLC： Q028
- Online First：05 February 2013，
  
  Published：05 February 2013
- 稿件说明：
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AI Ning, JIANG Zhe, XU Xi, et al. Preparation of amine modified layered double hydroxide and its adsorption mechanism for CO₂[J]. CIESC Journal, 2013, (2): 616-623. DOI: 10.3969/j.issn.0438-1157.2013.02.028.
DOI：

AI Ning, JIANG Zhe, XU Xi, et al. Preparation of amine modified layered double hydroxide and its adsorption mechanism for CO₂[J]. CIESC Journal, 2013, (2): 616-623. DOI: 10.3969/j.issn.0438-1157.2013.02.028. DOI：

摘要

以氨基硅烷为改性剂

采用超声剥脱的方法合成了氨基改性的层状双氢氧化物。利用元素分析、X射线衍射(XRD)、漫反射红外傅里叶变换光谱(DRIFTS)和热重分析(TGA)等技术对样品进行了表征。研究了样品在25～150℃温度范围内的二氧化碳吸附能力。在80℃下

NiMgAl N2在纯CO2和15% CO2/N2混合气中达到最大吸附容量

分别为2.02 mmol·g-1和1.89 mmol·g-1。吸附/脱附再生实验显示140℃为最佳的脱附温度。利用原位漫反射傅里叶红外光谱对二氧化碳在样品上的吸附进行了机理研究。

Abstract

An amine modified NiMgAl layered double hydroxide was synthesized via an exfoliation and grafting method.The samples were characterized by elemental analysis

X-ray diffraction

diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS)

and thermogravimetric analysis (TGA).Adsorption of carbon dioxide on the modified layered double hydroxide was investigated by TGA at 25—150℃.NiMgAl N2 shows a maximum CO2 adsorption capacity of 2.02 mmol·g-1 in pure CO2 and 1.89 mmol·g-1 in 15% CO2/N2 at 80℃.The optimum desorption temperature is 140℃ for NiMgAl N2 according to adsorption/desorption experiments.By in-situ DRIFTS

the adsorption of CO2 on NiMgAl N2 follows the mechanism of formation of ammonium carbamate ion pairs.

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Preparation of amine modified layered double hydroxide and its adsorption mechanism for CO2

DOI：10.3969/j.issn.0438-1157.2013.02.028

摘要

Abstract

关键词

Keywords

references

Preparation of amine modified layered double hydroxide and its adsorption mechanism for CO₂