|本期目录/Table of Contents|

[1]胡煜,朱天骄,张璐,等.玉米秸秆基阴离子吸附剂去除水中六价铬的性能[J].生物加工过程,2019,17(02):220-226.[doi:10.3969/j.issn.1672-3678.2019.02.017]
 HU Yu,ZHU Tianjiao,ZHANG Lu,et al.Fabrication of a corn straw-based adsorbent forhexavalent chromium removal from water[J].Chinese Journal of Bioprocess Engineering,2019,17(02):220-226.[doi:10.3969/j.issn.1672-3678.2019.02.017]
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玉米秸秆基阴离子吸附剂去除水中六价铬的性能()
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《生物加工过程》[ISSN:1672-3678/CN:32-1706/Q]

卷:
17
期数:
2019年02期
页码:
220-226
栏目:
出版日期:
2019-03-30

文章信息/Info

Title:
Fabrication of a corn straw-based adsorbent forhexavalent chromium removal from water
文章编号:
1672-3678(2019)02-0220-07
作者:
胡煜朱天骄张璐徐纪敏聂广泽
南京工业大学 环境科学与工程学院,江苏 南京 211800
Author(s):
HU YuZHU TianjiaoZHANG LuXU JiminNIE Guangze
School of Environmental Science and Engineering,Nanjing Tech University,Nanjing 211800,China
关键词:
玉米秸秆 改性 吸附剂 六价铬Cr(Ⅵ) 生物环境
分类号:
X52
DOI:
10.3969/j.issn.1672-3678.2019.02.017
文献标志码:
A
摘要:
通过对玉米秸秆进行化学改性嫁接季氨基官能团,制备了一种新型的阴离子吸附剂,用于深度去除水体中的六价铬。通过扫描电镜(SEM)、红外光谱(FT-IR)分析发现:季氨基被成功嫁接到秸秆基质上,改性后秸秆内表面沟壑较多,比表面积增大。热力学与动力学研究显示:玉米秸秆基吸附剂吸附Cr(Ⅵ)的过程符合Langmuir模型和准二级动力学模型,属于单分子层化学吸附,最大吸附量可达15.63 mg/g,远大于D311A树脂吸附容量,且40 min左右即可达到平衡,最佳吸附pH为3~7。通过柱吸附实验研究发现:5 mL吸附剂处理含铬废水的体积可达3 000 mL,吸附饱和的吸附剂通过强酸脱附再生,多次循环吸附后处理体积几乎不变,表明本文制备的秸秆基吸附剂具备较好的应用前景。

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备注/Memo

备注/Memo:
收稿日期:2018-07-31修回日期:2018-10-23
基金项目:国家自然科学基金(21507060); 南京工业大学大学生创新创业实践项目(201734022A)
作者简介:胡煜(1997—),男,江苏盐城人,本科生,研究方向:废物资源化与水污染控制; 聂广泽(联系人),助理教授,E-mail:gznie@njtech.edu.cn
引文格式:胡煜,朱天骄,张璐,等.玉米秸秆基阴离子吸附剂去除水中六价铬的性能[J].生物加工过程,2019,17(2):220-226.
HU Yu,ZHU Tianjiao,ZHANG Lu,et al.Fabrication of a corn straw-based adsorbent forhexavalent chromium removal from water[J].Chin J Bioprocess Eng,2019,17(2):220-226..
更新日期/Last Update: 2019-03-30