【摘要】 本文报道了D252大孔强碱性阴离子交换树脂吸着铬(Ⅵ)的性能和机理,及最佳吸着条件和一系列热力学函数。通过柱色谱试验,选择了4N NaOH为洗脱液。由树脂的红外谱图研究表明:D252树脂对铬(Ⅵ)的吸着既有溶液中电介质之间的化学置换反应,也形成配合物,其配位比为1:1。更多还原

【Abstract】 In this paper the sorption behaviours and mechanism of macro-porous D252 resin fowards chromium (Ⅵ) have been investigated.The optinum conditions and some thermodynamic parameters of sorption have also been studied.In the column chromatography chromium(Ⅵ) is eluted by sodium hydroxide solution efficiently.The adsorption capacity of resin for chromium (Ⅵ) is 170.6 mg ion / g resin.The coordination ratio (functional group:metalion) of resin to chromium (Ⅵ) is 1:1 and sorbing mechanism has been investigated by means of chemical analysis and 1R-spectrum.更多还原