Performance of amine functionalized mesoporous adsorbents for CO<sub>2</sub> adsorption

HE Kaiwu; TANG Siyang; LIU Changjun; YUE Hairong; LIANG Bin

doi:10.11949/j.issn.0438-1157.20180336

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Performance of amine functionalized mesoporous adsorbents for CO₂ adsorption

更新时间：2025-12-10

- Performance of amine functionalized mesoporous adsorbents for CO₂ adsorption
- CIESC Journal Issue 9, Pages: 3887-3895(2018)
- 作者机构：
  
  1. 四川大学化学工程学院,四川,成都,610065
  2. 四川大学新能源与低碳技术研究院,四川,成都,610065
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180336
  CLC： Q116.2
- Online First：05 September 2018，
  
  Published：05 September 2018
- 稿件说明：
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HE Kaiwu, TANG Siyang, LIU Changjun, et al. Performance of amine functionalized mesoporous adsorbents for CO₂ adsorption[J]. CIESC Journal, 2018, (9): 3887-3895. DOI: 10.11949/j.issn.0438-1157.20180336.
DOI：

HE Kaiwu, TANG Siyang, LIU Changjun, et al. Performance of amine functionalized mesoporous adsorbents for CO₂ adsorption[J]. CIESC Journal, 2018, (9): 3887-3895. DOI: 10.11949/j.issn.0438-1157.20180336. DOI：

摘要

针对当前固体胺CO2吸附剂存在吸附容量小、循环稳定性差等问题，采用高比表面积、易嫁接胺的介孔SBA-15作为载体，研究分子筛模板剂脱除方法和有机胺改性方法对制备的固体吸附剂吸附性能的影响，并采用N2物理吸附、X射线衍射、红外光谱、热失重分析等表征技术并对样品进行表征。实验结果表明，通过嫁接和浸渍能够合成出不同有机胺负载量的胺功能化吸附剂，其中混合胺嫁接法改性的APTES-SBA（U）-T60吸附剂其吸附容量最大，在75℃下的纯CO2气氛中吸附量达到192.05 mg/g，优于溶剂萃取和煅烧法去除模板剂。此外，混合胺嫁接法制备的样品在多次的吸/脱附操作下，CO2吸附稳定性良好，表明混合胺修饰的吸附剂具有很好的稳定性和再生性。

Abstract

Amine-functionalized nanomaterials have significant potential in CO2 capture technology because of their low energy consumption

stable performance

and high regeneration capacity. To improve the CO2 adsorption capacity

the high surface and mesoporous SBA-15 was used as the support for amine modification and CO2 adsorption. The adsorbents prepared with different modified methods

amines and amine content were characterized by using the BET

XRD

FT-IR

thermo-gravimetric analysis

and TG adsorption test technologies. The adsorption results showed that the grafting of mixed amine modified APTES-SBA (U)-T60 with a high adsorption capacity of 192.05 mg/g under pure CO2 at 75℃

which is higher than that of solvent extraction and calcination method. Mixed amine modified adsorbents exhibited a high thermal stability and reproducibility.

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Performance of amine functionalized mesoporous adsorbents for CO2 adsorption

DOI：10.11949/j.issn.0438-1157.20180336

摘要

Abstract

关键词

Keywords

references

Performance of amine functionalized mesoporous adsorbents for CO₂ adsorption