Adsorption Capability of Fe-HT3.0 for Nitrite and Nitrate Ions in a Binary Solution System

被引：1

作者：

Ogata, Fumihiko ^{[1
]}

Nagai, Noriaki ^{[1
]}

Nakamura, Takehiro ^{[1
]}

Kawasaki, Naohito ^{[1
,2
]}

机构：

[1] Kindai Univ, Fac Pharm, 3-4-1 Kowakae, Higashiosaka, Osaka 5778502, Japan

[2] Kindai Univ, Antiaging Ctr, 3-4-1 Kowakae, Higashiosaka, Osaka 5778502, Japan

来源：

CHEMICAL & PHARMACEUTICAL BULLETIN | 2019年 / 67卷 / 10期

关键词：

Fe-HT3.0; nitrite ion; nitrate ion; adsorption; AQUEOUS-SOLUTION; HYDROTALCITE; EQUILIBRIUM; MODEL;

D O I：

10.1248/cpb.c19-00506

中图分类号：

R914 [药物化学];

学科分类号：

100701 ;

摘要：

In this study, the adsorption capability of Fe-HT3.0 for nitrite and nitrate ions in a binary solution system was evaluated. It was found that the amount of nitrite and nitrate ions adsorbed in a single solution (1.19 and 1.27 mmol/g, respectively) was higher than that in a binary solution (0.36 and 0.90 mmol/g, respectively). Equilibrium adsorption was attained within 6-24 h. The adsorption data were fitted to a pseudo-second order model (correlation coefficient: 0.999), and indicated that the adsorption of both nitrite and nitrate ions is controlled by chemical sorption. Additionally, the binding energies before and after the adsorption of nitrite and nitrate ions in the binary solution system were measured. After adsorption, new nitrogen peaks (approx. 399 and 403 eV) were detected. The results of this study show the potential of Fe-HT3.0 for the removal of nitrite and nitrate ions from aqueous solution systems.

引用

页码：1168 / 1170

页数：3

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