当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES期刊下所有文献 > Highly efficient adsorption of Pb(II) from aqueous solution using amino-functionalized SBA-15/calcium alginate microspheres as adsorbent.

Highly efficient adsorption of Pb(II) from aqueous solution using amino-functionalized SBA-15/calcium alginate microspheres as adsorbent.

Abstract：

:In this work, amino-functionalized Santa Barbara Amorphous-15/calcium alginate (ASBA-15@CA) microspheres were fabricated and characterized by FTIR, SEM, XRD, TGA, and XPS analyses. The Pb(II) adsorption properties of the ASBA-15@CA microspheres were studied in terms of the effects of the adsorption time, adsorbent dose, solution pH, temperature, and initial concentration of Pb(II) on the adsorption capacity. At pH 6 and 298 K, the adsorption reached equilibrium after 100 min and the sample exhibited a good adsorption effect, affording a maximum adsorption capacity of 1029.58 mg/g and a removal rate as high as 98.99%. The adsorption process conformed to the Langmuir model (R2 = 0.9937) and followed the pseudo-second-order kinetics model (R2 = 0.9995). Regeneration experiments showed that the removal rate of the sample reached 75% even after 6 cycles. Overall, this study provides new insights into the development of novel, highly efficient, and repeatable degradation materials for the removal of Pb(II).

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Song Y,Yang LY,Wang YG,Yu D,Shen J,Ouyang XK

doi

10.1016/j.ijbiomac.2018.12.112

subject

Has Abstract

pub_date

2019-03-15 00:00:00

pages

808-819

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(18)34527-6

journal_volume

125

pub_type

杂志文章

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