|本期目录/Table of Contents|

[1]余佳敏,赵宇,肖勇,等.烟秆基Fe/Mg磁性生物炭复合材料的制备、表征及吸附性能[J].江苏农业科学,2019,47(09):257-262.
 Yu Jiamin,et al.Study on preparation and characterization of tobacco stems magnetic biochar composites and its adsorbing capacity[J].Jiangsu Agricultural Sciences,2019,47(09):257-262.
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烟秆基Fe/Mg磁性生物炭复合材料的制备、
表征及吸附性能
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期数:
2019年第09期
页码:
257-262
栏目:
农业工程与信息技术
出版日期:
2019-05-27

文章信息/Info

Title:
Study on preparation and characterization of tobacco stems magnetic biochar composites and its adsorbing capacity
作者:
余佳敏 赵宇 肖勇 江鸿 张建会 余祥文
中国烟草总公司四川省公司,四川成都 610041
Author(s):
Yu Jiaminet al
关键词:
烟秆生物炭磁性生物炭吸附性能
Keywords:
-
分类号:
TQ424.1
DOI:
-
文献标志码:
A
摘要:
利用热解技术,以烟秆为碳源,FeCl2·4H2O为赋磁剂,通过一步法制备了可通过外加磁场进行分离的磁性生物炭(MBC)吸附剂。对吸附剂进行了表征,并分析了离子浓度配比、热解温度、初始浓度、pH值、阴离子共存等条件对MBC吸附磷特性的影响。结果表明,MBC对磷的吸附符合准二级动力学吸附方程和朗格缪尔(Langmuir)等温模型,吸附速率主要由化学吸附控制。由于金属氧化物的介入,静电吸附、离子交换和络合等作用增强,进而明显提升了对磷酸盐的吸附容量;阴离子与磷酸盐共存时,对磷的吸附影响有限,表明MBC吸附剂对磷具有较好的选择性。溶液pH值会影响磷酸根的存在形态,进而影响MBC对磷的吸附能力。再生试验结果表明,经过5次循环后,MBC吸附剂的吸附能力可以达到82%以上,表现了良好的再生能力和吸附能力。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-12-28
基金项目:四川省烟草公司科技项目(编号:SCYC201603、SCYC201604)。
作者简介:余佳敏(1989—),女,四川成都人,硕士,助理农艺师,主要从事植物保护、农业废弃物处理及资源化利用研究。E-mail:scycyujm@163.com。
通信作者:余祥文,硕士,高级农艺师,主要从事烟草相关研究。E-mail:ytt97@sina.com。
更新日期/Last Update: 2019-05-05