文献类型：期刊文献

英文题名：Effect of Pyrolysis Temperature on Adsorption Characteristics of Biochar Derived from Corn Straw

作者：Dai, Jing[1]; Xu, Ruolin[1]; Li, Wangying[1]; Li, Yulin[1]; Yang, Yang[1]; Xiao, Yang[1]; Mao, Huan[1]; Qiu, Muqing[1]; Wang, Hai[1]; Yang, Ningcan[1]; Han, Li[1]

机构：[1] College of Life Science, Shaoxing University, Shaoxing, 312000, China

年份：2021

卷号：20

期号：1

起止页码：291

外文期刊名：Nature Environment and Pollution Technology

收录：EI(收录号：20211310151914)、Scopus(收录号：2-s2.0-85103273726)

基金：This work is supported by the Natural Science Foundation of Zhejiang Province, China (LGF19C030001 and LG-F20C030001). Authors are very grateful for their support.

语种：英文

外文关键词：Carbonization - Copper - Heavy metals - Integral equations - Ions - Population statistics - Wastewater treatment

外文摘要：With the growth of population and the rapid development of industry, a large amount of wastewater containing heavy metals has been produced. How to treat wastewater containing heavy metals effectively is an important problem. In this study, biochar derived from corn straw is prepared at different carbonization temperatures by oxygen-limited carbonization, and finally, biochar derived from the corn straw at different temperatures is obtained. Then, the adsorption characteristics of ionic heavy metal copper in aqueous solution were studied by biochar prepared at different temperatures. Adsorption kinetics of copper in aqueous solution by biochar from corn straw is discussed in detail. Experimental results show that the adsorption capacity of Cu2+ ions in solution by biochar prepared at different temperatures is significantly different. The prepared biochar derived from corn straw is a fragmentary and porous structure. A lot of functional groups appear on the prepared biochar. The pseudo second order kinetic equation can better describe the entire adsorption of Cu2+ ions in solution by biochar prepared under different temperatures. The adsorption process of Cu2+ ions by biochar is controlled by liquid diffusion and intraparticle diffusion. ? 2021 Technoscience Publications. All rights reserved.