期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 209, 期 -, 页码 315-329出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.04.033
关键词
Cellulose; Chemical and biological pretreatment; Adsorption
资金
- Technological innovation platform of straw comprehensive utilization in Jilin Province [(2014) C-1]
- Science and Technology Department of Jilin Province [20190303057SF]
The study used a combination of chemical and biological pretreatment methods to extract cellulose from corn straw and prepared porous carbon materials with excellent adsorption performance. The research investigated the adsorption mechanism and kinetics of synthetic dye MG and antibiotic TC, and provided insights for the extraction of cellulose from other lignocellulosic materials.
In this study, we used a combination of chemical and biological pretreatment methods to extract cellulose from corn straw with a relative content of 92.40%. The adsorption performance and mechanism of the prepared porous carbon were investigated using synthetic dye malachite green (MG) and antibiotic tetracycline hydrochloride (TC) as adsorption models. The kinetic studies suggested that the adsorption followed the pseudosecond-order model and Bangham model. The Freundlich isotherm model fitted the adsorption data best for both MG and TC. The thermodynamic studies showed that the adsorption of MG and TC by adsorbents were spontaneous and endothermic in nature. In addition, the adsorption performance was maintained at 50% of the original value after five cycles. More importantly, this method not only improved the adsorption performance of prepared porous carbon materials but also provides a reference for the application of other lignocellulosic materials for cellulose extraction.
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