文献类型：期刊文献

英文题名：Thermal treatment of biochar in the air/nitrogen atmosphere for developed mesoporosity and enhanced adsorption to tetracycline

作者：Zhu, Xiaoxiao[1];Li, Chunyan[1];Li, Jianfa[1];Xie, Bin[1];Lu, Jinhong[1];Li, Yimin[1]

机构：[1]Shaoxing Univ, Coll Chem & Chem Engn, Shaoxing 312000, Zhejiang, Peoples R China

年份：2018

卷号：263

起止页码：475

外文期刊名：BIORESOURCE TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000439317100057)、、EI(收录号：20182105217029)、Scopus(收录号：2-s2.0-85046998066)、WOS

基金：This work was supported by the National Natural Science Foundation of China (No. 21777103) and by the Natural Science Foundation of Zhejiang Province, China (LY16B070003).

语种：英文

外文关键词：Biochar; Activation; Mesoporous carbon; Adsorption; Antibiotic

外文摘要：For the purpose of producing carbons with developed mesoporosity, a wood biochar was thermally treated at 600-800 degrees C in the air/nitrogen atmosphere. The mesopore development was observed when the air flux increased to 50-90 mL/min, and the carbon product having high mesopore surface area (316 m(2)/g) and mesopore pore volume (0.284 cm(3)/g) was produced at the treatment temperature of 700 degrees C. The mesopores were developed mainly in the temperature holding stage of thermal treatment, with size mainly ranged from 20 to 60 angstrom. The carbons' adsorption to the antibiotic tetracycline was enhanced by 5.5-9.2 folds when the air/nitrogen mixture was used instead of nitrogen atmosphere in thermal treatment, and the enhanced adsorption is positively related to the mesopore development. In general, this research provides a facile way to produce carbons with developed mesoporosity, so as to improve their adsorption to bulky organic molecules.