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制备了经间苯三酚进行化学修饰的吸附树脂并进行了红外光谱表征,以NDA150作为参照,对比了两种吸附树脂对不同温度下水溶液中间苯三酚、2,6-二氯酚以及间苯三酚/2,6-二氯酚双组分体系的吸附研究,并探讨了其吸附机理.结果表明:在合适的温度下FZH33对溶液中间苯三酚、2,6-二氯酚的吸附过程存在化学吸附效应,和NDA150相比较,在相同浓度下,FZH33对溶液中间苯三酚、2,6-二氯酚的静态吸附量显著增加,静态吸附百分比增量分别最少可达115.9%和18.9%,显示出对酚类物质的吸附选择性;在一定温度和浓度范围内,在双组分体系下水溶液中间苯三酚/2,6-二氯酚在FZH33上的吸附具有协同吸附效应,和单组分相比,FZH33在双组分中对间苯三酚和2,6-二氯酚的静态吸附百分比增量分别最高可达261.7%和24.5%.
The adsorption resin chemically modified by phloroglucinol was prepared and characterized by FTIR. NDA150 was used as a reference to compare the adsorption of pyrogallol, 2,6-dichlorophenol and 2,6-dichlorophenol in aqueous solution at different temperatures. Pyrogallol / 2,6-dichlorophenol was studied and the adsorption mechanism was discussed. The results showed that FZH33 could effectively adsorb phloroglucinol and 2,6-dichlorophenol in solution at a suitable temperature Compared with NDA150, the adsorption capacity of FZH33 to phloroglucinol and 2,6-dichlorophenol in the solution increased significantly, and the static adsorption percentage increments were at least 115.9% And 18.9% respectively, showing the selective adsorption of phenolic compounds. The adsorption of pyrogallol / 2,6-dichlorophenol on FZH33 in a two-component system at a certain temperature and concentration had synergistic adsorption Compared with the single component, FZH33 could increase the static adsorption percentage of phloroglucinol and 2,6-dichlorophenol up to 261.7% and 24.5% respectively in the two components.