%0 Journal Article %A Xinyu Chen %A Shuo Shi %A Ximei Han %A Min Li %A Ying Nian %A Jing Sun %A Wentao Zhang %A Tianli Yue %A Jianlong Wang %T Insights into high-efficient removal of tetracycline by a codoped mesoporous carbon adsorbent %D 2022 %R 10.1016/j.cjche.2021.07.023 %J Chinese Journal of Chemical Engineering %P 148-156 %V 44 %N 4 %X Adsorbents with simple preparation and high surface area have become increasingly prevalent for the removal of organic contaminants. Herein, a carbon nanoplate codoped by Co and N elements with abundant ordered mesoporous (Co/N-MCs) was applied as an adsorbent for tetracycline removal. Taking integrated advantages of ordered mesopores on carbon-based structures and N-doping inducing the strengthened π–π dispersion and generation of pyridinic N, as well as cobaltic nanoparticles embedded in carbon nanoplates, the Co/N-MCs was tailored for high efficiently absorbing tetracycline via π-π interaction, Lewis acid-base interaction, metal complexation and electrostatic attraction. The Co/N-MCs had the advantages of high surface area, porous structure, plenty adsorption sites, and easy separation. As such, the as-prepared Co/N-MCs adsorbents significantly enhanced tetracycline removal performance with a maximum adsorption capacity of 344.83 mg·g-1 at pH 6 and good reusability, which was finally applied to removal tetracycline from tap water sample. Furthermore, the adsorption process towards tetracycline hydrochloride could be well attributed to the pseudo-second-order kinetic and Langmuir isotherm models. Compared with traditional carbon-based adsorbents, it owns a simpler synthesis method and a higher adsorption capacity, as well as it is a promising candidate for water purification. %U https://cjche.cip.com.cn/EN/10.1016/j.cjche.2021.07.023