第 43 卷第 1 期 |  | Vol. 43 No. 1 | 2013 年 2 月 | Feb 2013 |
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所屬欄目:功能材料
N-甲基乙酰胺基修飾的超高交聯(lián)吸附樹(shù)脂的合成與吸附性能 |
周 平,王小梅*,趙晨曦
(長(cháng)沙學(xué)院 生物工程與環(huán)境科學(xué)系,湖南 長(cháng)沙 410003) |
摘 要:以大孔交聯(lián)氯甲基化聚苯乙烯為原料通過(guò)Friedel-Crafts反應、甲胺化反應和乙;磻,制備了N-甲基乙酰胺基修飾的超高交聯(lián)型吸附樹(shù)脂。研究了樹(shù)脂對水溶液中水楊酸的吸附去除性能。結果表明,所制得的樹(shù)脂能有效吸附水溶液中的水楊酸,吸附等溫線(xiàn)都是I型吸附等溫線(xiàn),Langmuir和Freundlich方程模型都可很好地擬合平衡吸附數據。水楊酸原始濃度在903.6 mg/L、流速在88 mL/h,10 mL濕樹(shù)脂在60 BV(1BV=10 mL)左右出現穿透,性能優(yōu)于目前商品化的XAD-4樹(shù)脂和XAD-7樹(shù)脂。 |
關(guān)鍵詞:N-甲基乙酰胺;超高交聯(lián)樹(shù)脂;吸附;水楊酸 |
中圖分類(lèi)號:TQ32 文獻標識碼:A 文章編號:1009-9212(2013)01-0055-04 |
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Synthesis and Adsorption Property of Hypercrosslinked Polymeric Adsorbent Modified with N-Methylacetamide Groups |
ZHOU Ping,WANG Xiao-mei*,ZHAO Chen-xi
(Department of Bioengineering and Environmental Science,Changsha University,Changsha 410003,China) |
Abstract:By Friedel-Crafts reaction,methylamination and acetamidation,a novel N-methylacetamide modified hypercrosslinked polymeric adsorbent was synthesized from macroporous cross-linked chloromethylated polystyrene. The adsorption behavior of salicylic acid on this resin was investigated in aqueous solution. The results indicated that the adsorption isotherms were type I isotherm,the Langmuir and Freundlich models were in accordance with the adsorption equilibrium data. At an initial concentration of 903.6 mg/L and a flow rate of 88 mL/h,60 BV of salicylic acid aqueous solution could be dealt by 10 mL of the title resin before the breakthrough point,which was superior to XAD-4 and XAD-7. |
Key words:N-methylacetamide;hypercrosslinked polymeric adsorbent;adsorption;salicylic acid |
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基金項目:湖南省教育廳研究課題(11C0120)。
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作者簡(jiǎn)介:周 平(1988-),男,湖南岳陽(yáng)人,研究方向:功能高分子材料。
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聯(lián) 系 人:王小梅(1977-),女,湖南祁東人,研究方向:功能高分子。(E-mail:wxm@ccsu.cn)
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收稿日期:2012-12-20
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