Microporous organic hydroxyl-functionalized polybenzotriazole for encouraging CO2 capture and separation

Qiang Yin; Chunlin Lu; Shuai Zhang; Meifang Liu; Kai Du; Lin Zhang; Guanjun Chang

doi:10.1039/c9ra03741a

Microporous organic hydroxyl-functionalized polybenzotriazole for encouraging CO₂ capture and separation

RSC Adv. 2019 Jul 22;9(39):22604-22608. doi: 10.1039/c9ra03741a. eCollection 2019 Jul 17.

Authors

Qiang Yin¹, Chunlin Lu¹, Shuai Zhang¹, Meifang Liu¹, Kai Du¹, Lin Zhang¹, Guanjun Chang²

Affiliations

¹ Research Center of Laser Fusion, China Academy of Engineering Physics Mianyang 621900 P. R. China liumeifang@caep.cn.
² State Key Laboratory of Environment-friendly Energy Materials, School of Material Science and Engineering, Southwest University of Science and Technology Mianyang 621010 P. R. China gjchang@mail.ustc.edu.cn.

Abstract

We report a mild, hydroxyl functionalized and thermal stable benzotriazole-based aerogel (HO-PBTA), which is inspired by phenolic resin chemistry. Taking advantage of the synergistic adsorption interactions between hydroxy-benzotriazole and CO₂, and the phobic effect between benzotriazole and nitrogen (N₂), the CO₂ uptake capacity of the HO-PBTA reaches an encouraging level (6.41 mmol g^-1 at 1.0 bar and 273 K) with high selectivity (CO₂/N₂ = 76 at 273 K).