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 abun-dant ordered mesoporous(Co/N-MCs)was applied as an adsorbent for tetracycline removal.Taking inte-grated 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 inter-action,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 iso-therm 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.

College of Food Science and Engineering,Northwest A&F University,Yangling 712100,China;Qinghai Provincial Key Laboratory of Qinghai-Tibet Plateau Biological Resources,Northwest Institute of Plateau Biology,Chinese Academy of Sciences,Xining 810008,China

[1]Xinyu Chen;Shuo Shi;Ximei Han;Min Li;Ying Nian;Jing Sun;Wentao Zhang;Tianli Yue;Jianlong Wang-.Insights into high-efficient removal of tetracycline by a codoped mesoporous carbon adsorbent)[J].中国化学工程学报（英文版）,2022(04):148-156

Adsorbents,cobaltic,therm

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