无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2023, Vol. 55 ›› Issue (7): 89-96.doi: 10.19964/j.issn.1006-4990.2022-0598

• 环境·健康·安全 • 上一篇    下一篇

磁性黄原酸化壳聚糖合成及表征

张鹏1,2,3(), 董珊珊1, 王雨露2, 赵月龙1   

  1. 1.太原理工大学环境科学与工程学院,山西 太原 030000
    2.湖南科技大学土木工程学院,湖南 湘潭 411201
    3.山西师范大学现代文理学院转设筹备处,山西 临汾 041075
  • 收稿日期:2022-10-10 出版日期:2023-07-10 发布日期:2023-07-13
  • 作者简介:张鹏(1982— ),男,博士,副教授,研究方向为混凝科学与技术;E-mail:zhangpeng388@126.com
  • 基金资助:
    国家自然科学基金项目(41502331);山西省基础研究计划资助项目(202203021211248)

Synthesis and characterization of magnetic xanthogenated chitosan

ZHANG Peng1,2,3(), DONG Shanshan1, WANG Yulu2, ZHAO Yuelong1   

  1. 1. College of Environmental Science and Engineering,Taiyuan University of Technology,Taiyuan 030000,China
    2. College of Civil Engineering,Hunan University of Science and Technology,Xiangtan 411201,China
    3. Upgrading office of Modern College of Humanities and Sciences of Shanxi Normal University,Linfen 041075,China
  • Received:2022-10-10 Published:2023-07-10 Online:2023-07-13

摘要:

以壳聚糖、二硫化碳、四氧化三铁为原料,戊二醛为交联剂,采用超声波辅助合成了一种核-壳结构的磁性黄原酸化壳聚糖重金属捕集剂(FSiCS)。通过测定水溶液中Sb(Ⅲ)的去除率来评价FSiCS的性能。当CS2用量为3.0 mL、NaOH质量浓度为90 g/L、反应时间为60 min+60 min、超声功率为160 W、戊二醛用量为150 μL、反应温度为50 ℃时,合成的FSiCS性能最佳。通过傅里叶红外光谱仪(FTIR)、扫描电镜(SEM)对其进行结构表征。FTIR分析表明,FSiCS中含有—SH、N—C=S、C=S、C—S等含硫基团或化学键,能够与Sb(Ⅲ)发生配位作用;SEM分析表明,FSiCS的粒径为100~250 nm,呈圆球形或棱角分明的多边形。

关键词: 磁性, 重金属捕集剂, 壳聚糖, 混凝, 金属锑

Abstract:

The core-shell magnetic xanthogenated chitosan for heavy metal catcher(FSiCS) was synthesized by using chitosan,carbon disulfide and Fe3O4 as raw materials and glutaraldehyde as cross-linking agent through ultrasonic assisted synthesis.The removal rate of Sb(Ⅲ) in aqueous solution was measured to evaluate the performance of FSiCS.The FSiCS showed the best performance when the amount of CS2 was 3.0 mL,concentration of NaOH was 90 g/L,reaction time was 60 min+60 min,ultrasonic power was 160 W,amount of glutaraldehyde was 150 μL,reaction temperature was 50 ℃.The structure was characterized by Fourier transform infrared spectroscopy(FTIR),scanning electron microscopy(SEM).FTIR showed that FSiCS contained sulfur groups or chemical bonds such as —SH,N—C=S,C=S and C—S,which could coordinate with Sb(Ⅲ).SEM showed that FSiCS had a particle size between 100~250 nm,and the particles were spherical or polygonal with clear edges and corners.

Key words: magnetism, heavy metal catcher, chitosan, coagulation, metal antimony

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