title: The sensitive and selective adsorption of aromatic compounds with highly crosslinked polymer nanoparticles.
abstract: This study presents the preparation and characterization of a nanoscale Davankov-type hyper-crosslinked-polymer (HCP) as an adsorbent of benzene-ring-containing dyes and organic pollutants. HCP nanoparticles post-crosslinked from a poly(DVB-co-VBC) precursor were synthesized in this study, possessing ultrahigh surface area, hydrophobicity and stability. The as-synthesized Davankov-type HCP exhibited a rapid and selective adsorption ability towards the benzene-ring-containing dyes due to its highly conjugated structure. Besides, for the first time, the prepared HCP nanoparticles were adopted for the adsorption of nonpolar organic pollutants by means of solid-phase microextraction (SPME). Owing to its high hydrophobicity, diverse pore size distribution and highly conjugated structure, a 10 μm HCP coating exhibited excellent adsorption abilities towards benzene-ring-containing polycyclic aromatic hydrocarbons (PAHs) and benzene series compounds (benzene, toluene, ethylbenzene and o-xylene; abbreviated to BTEX) and to highly hydrophobic long-chain n-alkanes. Finally, the HCP-nanoparticles-coated SPME fiber was applied to the simultaneous analysis of five PAHs in environmental water samples and satisfactory recoveries were achieved. The findings could provide a new benchmark for the exploitation of superb HCPs as effective adsorbents for SPME or other adsorption applications.
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China. cesoygf@mail.sysu.edu.cn.
authors.forename: Shuqin
authors.initials: S
authors.lastname: Liu
authors.forename: Darui
authors.initials: D
authors.lastname: Chen
authors.forename: Juan
authors.initials: J
authors.lastname: Zheng
authors.forename: Lewei
authors.initials: L
authors.lastname: Zeng
authors.forename: Jijun
authors.initials: J
authors.lastname: Jiang
authors.forename: Ruifeng
authors.initials: R
authors.lastname: Jiang
authors.forename: Fang
authors.initials: F
authors.lastname: Zhu
authors.forename: Yong
authors.initials: Y
authors.lastname: Shen
authors.forename: Dingcai
authors.initials: D
authors.lastname: Wu
authors.forename: Gangfeng
authors.initials: G
authors.lastname: Ouyang
mesh_terms: D000327:Adsorption; D053758:Nanoparticles / Q000737:chemistry*; D013343:Styrenes / Q000737:chemistry*
chemical_list: D013343:Styrenes; C056745:poly(divinylbenzene)