版权说明 操作指南
首页 > 成果 > 详情

Competitive adsorption of Pb(II), Cd(II) and Cu(II) onto chitosan-pyromellitic dianhydride modified biochar

SCI-EEI
WOS被引频次:65
认领
导出
Link by DOI
反馈
分享
QQ微信 微博
成果类型:
期刊论文
作者:
Deng, Jiaqin;Liu, Yunguo*;Liu, Shaobo;Zeng, Guangming;Tan, Xiaofei;Huang, Binyan;Tang, Xiaojun;Wang, Shengfan;Hua, Quan;Yan, Zhili
通讯作者:
Liu, Yunguo
作者机构:
[Liu, Yunguo; Zeng, Guangming; Tan, Xiaofei; Yan, Zhili; Deng, Jiaqin; Hua, Quan; Wang, Shengfan; Huang, Binyan] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
[Liu, Yunguo; Zeng, Guangming; Tan, Xiaofei; Yan, Zhili; Deng, Jiaqin; Hua, Quan; Wang, Shengfan; Huang, Binyan] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.
[Liu, Shaobo] Cent S Univ, Coll Architecture & Art, Changsha 410082, Hunan, Peoples R China.
[Tang, Xiaojun] Cent S Univ, Xiangya Hosp 2, Otorhinolaryngol Dept, Changsha 410011, Hunan, Peoples R China.
通讯机构:
[Liu, Yunguo] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
语种:
英文
关键词:
Modified biochar;Competitive adsorption;Heavy metals;Adsorption mechanism;Selective functional groups
期刊:
Journal of Colloid and Interface Science
ISSN:
0021-9797
年:
2017
卷:
506
页码:
355-364
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:化学;WOS学科类别:Chemistry, Physical
入藏号:
WOS:000410464300039;EI:20173003973943
机构署名:
本校为其他机构
院系归属:
建筑与艺术学院
湘雅二医院(第二临床学院)
摘要:
In this work, a novel engineered biochar prepared through modification with chitosan and pyromellitic dianhydride (PMDA) was investigated as an adsorbent for the removal of heavy metal ions from single metal and mixed-metal solutions (Cd, Cu and Pb). Characterization experiments with FTIR and XPS suggested that the novel modified biochar had more surface functional groups compare to the pristine biochar. Adsorption experiments indicated that the initial pH of the solution influenced the ability of biochars to adsorb heavy metals in single- and multi-metal systems. Moreover, the chitosan-PMDA modified biochar had strong selective adsorption of Cu(II). Mechanism studies showed that chemisorption was the major mechanism for heavy metal removal by the chitosan-PMDA modified biochar. Furthermore, the types of effective functional group for these heavy metal removal were different. The N-C=O group played a dominant role in the process of Pb(II) removal, while several N-containing functional groups and C=C groups participated in the adsorption of Cd(II). The novel engineered biochar had selective adsorption capacity for copper due to the N-containing functional groups, meanwhile abundant carbonyl groups also participated in the removal of copper, and may reduce Cu(II) to Cu(I). (C) 2017 Elsevier Inc. All rights reserved.
参考文献:
Ahmad M, 2014, CHEMOSPHERE, V99, P19, DOI 10.1016/j.chemosphere.2013.10.071
Alhashimi HA, 2017, RESOUR CONSERV RECY, V118, P13, DOI 10.1016/j.resconrec.2016.11.016
Aran D, 2016, BIORESOURCE TECHNOL, V212, P199, DOI 10.1016/j.biortech.2016.04.043
Barakat MA, 2011, ARAB J CHEM, V4, P361, DOI 10.1016/j.arabjc.2010.07.019
Bogusz A, 2015, BIORESOURCE TECHNOL, V196, P540, DOI 10.1016/j.biortech.2015.08.006

反馈

验证码:
看不清楚,换一个
确定
取消

成果认领

标题:
用户 作者 通讯作者
请选择
请选择
确定
取消

提示

该栏目需要登录且有访问权限才可以访问

如果您有访问权限,请直接 登录访问

如果您没有访问权限,请联系管理员申请开通

管理员联系邮箱:yun@hnwdkj.com