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现代化工  2023, Vol. 43 Issue (2): 128-132    DOI: 10.16606/j.cnki.issn0253-4320.2023.02.025
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
胺基修饰高交联聚苯乙烯微球对水中对硝基苯酚的吸附特性
饶何逊, 宋佩霖, 申萌萌, 楼冉, 罗一多, 戴钰, 夏月, 王镜玮, 陈文静
扬州大学环境科学与工程学院, 江苏 扬州 225127
Adsorption removal of p-nitrophenol from wastewater by aminated hyper-cross-linked polystyrene microsphere
RAO He-xun, SONG Pei-lin, SHEN Meng-meng, LOU Ran, LUO Yi-duo, DAI Yu, XIA Yue, WANG Jing-wei, CHEN Wen-jing
College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
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摘要 通过"傅氏后交联+表面氨基化"的工艺路线制备出一种胺基修饰高交联聚苯乙烯微球A-HPM,考察了A-HPM对溶液中对硝基苯酚(PNP)的吸附特性。结果表明,A-HPM具有比表面积高、纳米孔结构与胺基官能团丰富等特点,能够通过微孔填充、π-π和酸碱作用协同吸附去除溶液中的PNP。溶液pH对A-HPM去除PNP的性能有较大影响,弱酸性条件下(pH为5~6)A-HPM对PNP的最大吸附量可达153.9 mg/g(初始质量浓度为200 mg/L)。A-HPM对PNP的吸附属于放热反应,且吸附性能不受溶液中共存离子的影响。动力学研究表明,A-HPM对PNP的吸附可在1 200 min达到平衡。吸附饱和的A-HPM能够通过NaOH溶液进行高效再生,再生后A-HPM的吸附性能保持稳定,从而实现长期循环使用。
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饶何逊
宋佩霖
申萌萌
楼冉
罗一多
戴钰
夏月
王镜玮
陈文静
关键词:  高交联聚苯乙烯微球  氨基化  对硝基苯酚  吸附-脱附    
Abstract: A new recyclable aminated hyper-cross-linked polystyrene microsphere (A-HPM) is synthesized for effective removal of p-nitrophenol (PNP) from wastewater.Possibly benefited from its unique structure of polystyrene matrix,sufficient aminated groups and high specific surface area,A-HPM can remove PNP from wastewater through the synergetic effect of micropore filling,π-π interactions and acid-base interactions.PNP adsorption by A-HPM is a pH-dependent process with the maximum adsorption capacity of 153.88 mg·g-1 under weak acid condition and an initial PNP concentration of 200 mg·L-1.The adsorption of PNP by A-HPM is an exothermic process,and the removal performance is not affected by the coexisting ions.Kinetic study indicates its adsorption equilibrium can be achieved within 1,200 min.The exhausted A-HPM can be effectively regenerated by sodium hydroxide solution,allowing for long-term cyclic utilization with constant adsorption performance.
Key words:  hyper-cross-linked polystyrene microspheres    aminated    p-nitrophenol    adsorption-regeneration
               出版日期:  2023-02-20
ZTFLH:  X703  
基金资助: 国家自然科学基金(52070160);博士后自然科学基金面上项目(2020M6716254);污染控制与资源化研究国家重点实验室开放课题(PCRRF20011);江苏省大学生实践创新训练计划项目(X20210576,X20220563,X20220572)
通讯作者:  陈文静(1984-),女,博士,讲师,主要从事污水生物处理技术与工艺等方面的研究,通讯联系人,chenwenjing@yzu.edu.cn。    E-mail:  chenwenjing@yzu.edu.cn
作者简介:  饶何逊(2000-),男,本科生,主要从事污水深度处理等方面的研究,710696144@qq.com。
引用本文:    
饶何逊, 宋佩霖, 申萌萌, 楼冉, 罗一多, 戴钰, 夏月, 王镜玮, 陈文静. 胺基修饰高交联聚苯乙烯微球对水中对硝基苯酚的吸附特性[J]. 现代化工, 2023, 43(2): 128-132.
RAO He-xun, SONG Pei-lin, SHEN Meng-meng, LOU Ran, LUO Yi-duo, DAI Yu, XIA Yue, WANG Jing-wei, CHEN Wen-jing. Adsorption removal of p-nitrophenol from wastewater by aminated hyper-cross-linked polystyrene microsphere. Modern Chemical Industry, 2023, 43(2): 128-132.
链接本文:  
https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2023.02.025  或          https://www.xdhg.com.cn/CN/Y2023/V43/I2/128
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