Comparison of adsorptive features between silver ion and silver nanoparticles on nanoporous materials

Jae Hoon Sim, Ha Nee Umh, Hyeon Ho Shin, Hwa Kyung Sung, Seung Yeon Oh, Byung Cheun Lee, Selvaraj Rengaraj, Younghun Kim

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The removal of Ag+ or AgNPs released from nano-products or effluent of WTP is important to reduce the potential risk of AgNPs. In this work, we prepared bimodal nanoporous silica (BNS) to compare the removal efficiency of Ag+ and AgNP with unimodal nanoporous silica (NS). To determine the adsorption capacity of Ag+ and AgNPs on NS and BNS, isotherm and kinetics studies was carried out at different concentrations. The results showed BNS with a bimodal nanoporous structure and a large external surface showed a higher uptake capacity and faster adsorption rate.

Original languageEnglish
Pages (from-to)2864-2869
Number of pages6
JournalJournal of Industrial and Engineering Chemistry
Volume20
Issue number5
DOIs
Publication statusPublished - Sep 25 2014

Keywords

  • Adsorption
  • Porous materials
  • Removal of silver
  • Silver ion
  • Silver nanoparticles

ASJC Scopus subject areas

  • Chemical Engineering(all)

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