Functionalized and Monodispersed Mesoporous Silica Nanospheres with a Schiff-Base for Metal Ion Adsorption

被引：0

作者：

Ha, Hyung Min ^{[1
]}

Park, Sung Soo ^{[1
]}

Yoo, Jong-Man ^{[1
]}

Jo, Nam-Ju ^{[1
]}

Ha, Chang-Sik ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Polymer Sci & Engn, Busan 46241, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2019年 / 19卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

Mesoporous Silica; Schiff-Base; Metal Ion Adsorption; Artificial Wastewater; Artificial Seawater; SELECTIVE ADSORPTION; PARTICLE-SIZE; NANOPARTICLES; REMOVAL; WATER; FABRICATION; RECOVERY; FACILE; ZN(II); SYSTEM;

D O I：

10.1166/jnn.2019.17055

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mesoporous silica nanospheres (MSNs-AH) with a Schiff-base ligand were synthesized using a snap-top strategy and post-synthetic grafting strategy for metal ion adsorption. The mesoporous MSNs-AH with the Schiff-base ligand were used for the adsorption of metal ions from artificial wastewater and artificial seawater. The adsorption characteristics of the functionalized adsorbents for various metal ions were tested for different adsorption times (1 similar to 48 h) in artificial wastewater and artificial seawater. In the case of artificial wastewater, the functionalized adsorbents had no preferential selectivity for metal ions except for Na+ ions, even though the MSNs-AH adsorbent adsorbed most of the metal ions investigated in this work, including Li+, Co2+, Ca2+, Fe3+, Mn2+, Mg2+, Al3+, Zn2+, and Ni2+. In the case of artificial seawater, however, the MSN absorbent showed high selectivity for Li+ ions.

引用

页码：6239 / 6246

页数：8

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