Preparation of Anion Exchangers Derived from Melamine Sponge and Its Adsorption Characteristics of Nitrate Ion

被引：8

作者：

Goto, Tatsuru ^{[1
]}

Amano, Yoshimasa ^{[1
,2
]}

Machida, Motoi ^{[1
,2
]}

机构：

[1] Chiba Univ, Grad Sch Engn, Inage Ku, 1-33 Yayoi Cho, Chiba, Chiba 2638522, Japan

[2] Chiba Univ, Self & Hlth Org, Inage Ku, 1-33 Yayoi Cho, Chiba, Chiba 2638522, Japan

来源：

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | 2017年 / 50卷 / 09期

基金：

日本学术振兴会;

关键词：

Melamine Sponge; Quaternization; Nitrate Ion; Adsorption; Ion Exchange; FORMALDEHYDE RESINS; REMOVAL; PHOSPHATE; WATER; XPS;

D O I：

10.1252/jcej.17we062

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Preparation of anion exchangers using melamine sponge (MS) and adsorption of nitrate ion was investigated. Carbonized melamine sponge was prepared at 500 degrees C with ZnCl2 impregnation (Z6) to develop the pore structure. Z6 was further treated by CH3I to introduce quaternary nitrogen onto the carbon surface and referred to as Z6-Q. Based on the result of X-ray photoelectron spectroscopy (XPS), Z6-Q contained more quaternary nitrogen than MS and Z6. Adsorption of nitrate ion on Z6-Q reached an equilibrium state the most quickly among the prepared samples. Adsorption kinetic curves indicated that the rate-limiting process was diffusion inside the pore for the adsorption of nitrate ion. In the adsorption of nitrate ion ranging 0.1-0.7 mmol/g, Z6-Q released equimolar chloride ion, suggesting that Z6-Q could have anion exchange sites to adsorb nitrate ion.

引用

页码：692 / 695

页数：4

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