【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（FSi CS）。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150μL、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。更多还原

【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 FSi CS.The FSi CS showed the best performance when the amount of CS₂ was 3.0 m L,concentration of Na OH was 90 g/L,reaction time was 60 min+60 min,ultrasonic power was 160 W,amount of glutaraldehyde was 150μL,reaction temperature was 50℃.The structure was characterized by Fourier transform infrared spectroscopy（FTIR）,scanning electron microscopy（SEM）.FTIR showed that FSi CS 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 FSi CS had a particle size between 100～250 nm,and the particles were spherical or polygonal with clear edges and corners.更多还原