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Updated: Sep 24, 2025

Author Spotlight: Standardizing the Development of Amine-Based Silica Composites as CO2 Adsorbents for Direct Air Capture
Published on: September 29, 2023
Microporous organic hydroxyl-functionalized polybenzotriazole for encouraging CO2 capture and separation
Qiang Yin1, Chunlin Lu1, Shuai Zhang1
1Research Center of Laser Fusion, China Academy of Engineering Physics Mianyang 621900 P. R. China liumeifang@caep.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).
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