Wang Shouqi, Wu Linkai, Wang Liangcai, Zhou Jianbin, Ma Huanhuan, Chen Dengyu
College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
Joint International Research Laboratory of Biomass Energy and Materials, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
Materials (Basel). 2023 Jul 12;16(14):4966. doi: 10.3390/ma16144966.
The environment has been heavily contaminated with tetracycline (TC) due to its excessive use; however, activated carbon possessing well-developed pores can effectively adsorb TC. This study synthesized pinecone-derived activated carbon (PAC) with high specific surface area (1744.659 cm/g, 1688.427 cm/g) and high adsorption properties (840.62 mg/g, 827.33 mg/g) via hydrothermal pretreatment methods utilizing pinecones as precursors. The results showed that PAC treated with 6% KOH solution had excellent adsorption properties. It is found that the adsorption process accords with the PSO model, and a large amount of C=C in PAC provides the carrier for π-πEDA interaction. The results of characterization and the isothermal model show that TC plays a key role in the adsorption process of PAC. It is concluded that the adsorption process of TC on PAC prepared by hydrothermal pretreatment is mainly pore filling and π-πEDA interaction, which makes it a promising adsorbent for TC adsorption.
由于四环素（TC）的过度使用，环境已受到严重污染；然而，具有发达孔隙的活性炭可以有效吸附TC。本研究以松果为前驱体，通过水热预处理方法合成了具有高比表面积（1744.659 cm²/g，1688.427 cm²/g）和高吸附性能（840.62 mg/g，827.33 mg/g）的松果衍生活性炭（PAC）。结果表明，用6% KOH溶液处理的PAC具有优异的吸附性能。发现吸附过程符合PSO模型，且PAC中大量的C=C为π-π EDA相互作用提供了载体。表征结果和等温模型表明，TC在PAC的吸附过程中起关键作用。得出结论，水热预处理制备的PAC对TC的吸附过程主要是孔隙填充和π-π EDA相互作用，这使其成为一种有前途的TC吸附剂。
