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材料导报  2020, Vol. 34 Issue (Z2): 112-116    
  无机非金属及其复合材料 |
麦秸生物质炭对Pb(Ⅱ)的吸附研究
赵欢欢1, 宋香琳1, 程灿1, 张利亚2, 王留成1
1 郑州大学化工学院,郑州 450001
2 河南博顿生物科技有限公司,郑州 450001
Adsorption of Pb (Ⅱ) by Wheat Straw Biochar
ZHAO Huanhuan1, SONG Xianglin1, CHENG Can1, ZHANG Liya2, WANG Liucheng1
1 School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
2 Henan Bodun Biotechnology Company Limited, Zhengzhou 450001, China
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摘要 以小麦秸秆为原料,利用低温热解制备小麦秸秆生物质炭,分别使用SEM、FTIR、BET对生物质炭进行表征。考察了生物质炭对Pb(Ⅱ)的吸附性能,发现该吸附过程是一个自发的吸热过程,符合Langmuir模型,随着温度的升高,生物质炭的吸附能力增大。吸附动力学研究发现准二级动力学模型可以很好地描述麦秸生物质炭吸附Pb(Ⅱ)的过程,该过程可能受表面吸附和颗粒内扩散共同控制,为化学吸附。
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王留成
关键词:  小麦秸秆  生物质炭  吸附  Pb(Ⅱ)    
Abstract: Wheat straw biochar was prepared using a low-temperature pyrolysis device, and the biomass char was characterized by SEM, FTIR, and BET, respectively. Through the research of isothermal adsorption process, it was found that the adsorption of Pb(Ⅱ) by wheat straw biochar accorded with Langmuir model, and it was a spontaneous endothermic process. The investigation of adsorption kinetics found that the pseudo-second-order kinetic model can well describe the process of wheat straw biochar adsorption of Pb(Ⅱ). This adsorption process is a complex process and may be controlled by surface adsorption and intra-particle diffusion together with chemisorption.
Key words:  wheat straw    biochar    adsorption    Pb(Ⅱ)
               出版日期:  2020-11-25      发布日期:  2021-01-08
ZTFLH:  X712  
通讯作者:  wanglc@zzu.edu.cn   
作者简介:  赵欢欢,河南周口人。本科(2014—2018年)毕业于河南科技大学,化工与制药学院;现为郑州大学化工学院硕士研究生。研究课题主要围绕新能源探索和改善环境。王留成,郑州大学教授,工学博士,河南省教育厅学术技术带头人,加拿大访问学者,主要从事新领域精细化学品及电化学技术的研究。完成30余项科研项目,包括国家重点攻关、河南省重大公益、河南省重大攻关等项目,发表学术论文150余篇,获发明专利12项,省级科研奖励9项。
引用本文:    
赵欢欢, 宋香琳, 程灿, 张利亚, 王留成. 麦秸生物质炭对Pb(Ⅱ)的吸附研究[J]. 材料导报, 2020, 34(Z2): 112-116.
ZHAO Huanhuan, SONG Xianglin, CHENG Can, ZHANG Liya, WANG Liucheng. Adsorption of Pb (Ⅱ) by Wheat Straw Biochar. Materials Reports, 2020, 34(Z2): 112-116.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2020/V34/IZ2/112
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