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<p>Volatile organic compounds (VOCs) are common pollutants that are highly volatile and toxic. Adsorption technology has been proven to be an effective method for reducing VOCs emissions. In this work, three porous hyper-crosslinked polymers (HCPs) were successfully prepared and systematically characterized. pBGly-TPA, pBP-TPA, and pBBP-TPA exhibit high specific surface areas as well as excellent hydrophobicity. Dynamic adsorption studies show that these materials have good adsorption capacity for toluene, n-hexane, and cyclohexane. Among them, pBBP-TPA demonstrates the most significant adsorption performance (323.3&#xa0;mg/g for toluene, 118.2&#xa0;mg/g for n-hexane, and 161.6&#xa0;mg/g for cyclohexane). The adsorption kinetics fitted both the Boltzmann and Yoon-Nelson models, suggesting minimal mass transfer resistance in fixed-bed configurations. Notably, pBBP-TPA retained most of its initial adsorption capacity over four consecutive adsorption-desorption cycles and maintained excellent toluene adsorption performance, even in humid environments, making it a promising adsorbent for VOCs removal.</p>

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Enhancing the adsorption capacities of non-polar VOCs by extending the linker of hydrophobic hypercrosslinked polymers

  • 期刊论文

  • 发表日期：

    2025年12月5日

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  • Jianming Tang,
  • Meihe Yu,
  • Ao Liu,
  • Meiyan Guo,
  • Wan Yu,
  • Gang Xiong,
  • Baoyi Ren,
  • Fu Ding,
  • Lixin You,
  • Yaguang Sun

摘要

Volatile organic compounds (VOCs) are common pollutants that are highly volatile and toxic. Adsorption technology has been proven to be an effective method for reducing VOCs emissions. In this work, three porous hyper-crosslinked polymers (HCPs) were successfully prepared and systematically characterized. pBGly-TPA, pBP-TPA, and pBBP-TPA exhibit high specific surface areas as well as excellent hydrophobicity. Dynamic adsorption studies show that these materials have good adsorption capacity for toluene, n-hexane, and cyclohexane. Among them, pBBP-TPA demonstrates the most significant adsorption performance (323.3 mg/g for toluene, 118.2 mg/g for n-hexane, and 161.6 mg/g for cyclohexane). The adsorption kinetics fitted both the Boltzmann and Yoon-Nelson models, suggesting minimal mass transfer resistance in fixed-bed configurations. Notably, pBBP-TPA retained most of its initial adsorption capacity over four consecutive adsorption-desorption cycles and maintained excellent toluene adsorption performance, even in humid environments, making it a promising adsorbent for VOCs removal.