当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES期刊下所有文献 > Three-dimensional nanoporous starch-based material for fast and highly efficient removal of heavy metal ions from wastewater.

Three-dimensional nanoporous starch-based material for fast and highly efficient removal of heavy metal ions from wastewater.

Abstract：

:The development of advanced adsorbents with fast adsorption rate, simple preparation, low cost, and high adsorption capacity is one of the most important topics for water purification. Herein, a novel and pollution-free adsorbent, three-dimensional nanoporous starch-based nanomaterial (3D-PSN), was prepared via sacrifice template method and functionalized for the first time in this work. Relevant characterization was performed through XRD, SEM, TGA, zeta potential analysis, FTIR, and XPS to confirm the formation of nanomaterials. Owing to its unique three-dimensional network nanostructure and abundant active sites, this adsorbent displayed outstanding adsorption properties for heavy metal ions removal, as high as 532.28 mg/g for Cd (II), 381.47 mg/g for Hg(II), 354.15 mg/g for Cu(II), 238.39 mg/g for Pb(II), completed within 30 min. In this process, the pseudo-second-order kinetic model appeared more consistent with the adsorption kinetic data, and the adsorption behavior complied with the Langmuir adsorption model. The adsorption mechanism mainly replied on the ion-exchange reaction, as well as chemical complexation formation. This adsorbent has remarkable recyclability, exhibiting strong application prospects for water purification and environmental remediation.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Fang Y,Lv X,Xu X,Zhu J,Liu P,Guo L,Yuan C,Cui B

doi

10.1016/j.ijbiomac.2020.07.017

subject

Has Abstract

pub_date

2020-12-01 00:00:00

pages

415-426

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(20)33763-6

journal_volume

164

pub_type

杂志文章

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