Adsorption of Benzene and Aniline Using a Novel Hypercrosslinked Polymeric Adsorbent Modified by Phenolic Hydroxyl Group

Abstract:

Using gelatin as dispersant, liquid paraffin as porogen, novel hypercrosslinked polymeric adsorbents of LM-5 and LM-6 were prepared by post-crosslinking reaction with phenol and 2-naphthol, respectively. Bromoethane was used as crosslinking reagent to substitute poisonous organic compound of chloromethyl methylether. 2-Naphthol was used in the post-crosslinking reaction to enhance phenolic hydroxyl group content. The experiments of selective adsorbing aniline on resins in mixture solution, which consisting of benzene and aniline, show that the adsorption of aniline and benzene on LM-6 in aqueous solution are mainly pushed by physical interaction. The adsorption of aniline is also partly pushed by chemical interaction, and the adsorptive enthalpy illuminates that there exists hydrogen-bonding. Owning to the hydrogen-bond, the adsorption capacity of aniline on LM-6 is markedly higher than that of benzene.

• Periodical: Key Engineering Materials (Volumes 575-576)
• Pages: 130-134
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.575-576.130
• Online since: September 2013
• Authors: Xin Hua Yuan, Wen Hua Guo, Yan Lei, Yong Qiang Liu, Ji Ye Wu, Wei Qun Qiu, Jie Hu, Shun Sheng Cao
• Keywords: Adsorption, Adsorption Enthalpy, Aniline, Benzene, Hypercrosslinked Polymeric Adsorbent

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