Preparation and characterization of magnetite-silica nano-composite as adsorbents for removal of methylene blue dyes from environmental water samples

Adel Fisli, Saeful Yusuf, Ridwan, Yuni Krisyuningsih, Jarnuzi Gunlazuardi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Magnetite-silica nano-composites (Fe3O4/SiO2) adsorbent, which have been synthesized and characterized and were tested as an effective sorbent material for methylene blue (MB) dye removal from water samples. The nano-composites were prepared by a simple procedure via a coprecipitation of iron (II) and iron (III) ion mixture in ammonium hydroxide and then was impregnated by a sodium silicate, in various iron to silica ratios. The prepared samples were characterized using zeta potential, XRD, VSM, TEM and porosity analysis. The result of characterization showed that the prepared Fe3O4 nano-particles have been successfully coated by silica, to form Fe3O4/SiO2 nano-composite. The nano-composite showed super-paramagnetic behavior at room temperature and contains both meso- and micro-porosity systems, in which the meso-porosity dominantly contributes to the pore volume. Adsorption performance of magneticsilica nano particles were examined by its ability to adsorb methylene blue (MB) dye in aqueous solution. Based on 20 mg/L MB as initial concentration, 1 gr/L adsorbent (Fe3O4/SiO2) dose, when the Fe3O4/SiO2 with ratio of iron to silica 3:1 was used, the remaining MB in solution was 13,3%. The composite was effective to adsorb MB in water and can be easily recovered from treated water with helping of external magnetic bar.

Original languageEnglish
Title of host publicationAdvanced Materials Science and Technology - ICAMST 2013
PublisherTrans Tech Publications
Pages525-531
Number of pages7
ISBN (Print)9783038350316
DOIs
Publication statusPublished - 1 Jan 2014
Event2013 International Conference on Advanced Materials Science and Technology, ICAMST 2013 - Yogyakarta, Indonesia
Duration: 17 Sep 201318 Sep 2013

Publication series

NameAdvanced Materials Research
Volume896
ISSN (Print)1022-6680

Conference

Conference2013 International Conference on Advanced Materials Science and Technology, ICAMST 2013
CountryIndonesia
CityYogyakarta
Period17/09/1318/09/13

Keywords

  • Adsorption
  • Dyes
  • Nano-composite
  • Silica-coated magnetite

Fingerprint Dive into the research topics of 'Preparation and characterization of magnetite-silica nano-composite as adsorbents for removal of methylene blue dyes from environmental water samples'. Together they form a unique fingerprint.

  • Cite this

    Fisli, A., Yusuf, S., Ridwan, Krisyuningsih, Y., & Gunlazuardi, J. (2014). Preparation and characterization of magnetite-silica nano-composite as adsorbents for removal of methylene blue dyes from environmental water samples. In Advanced Materials Science and Technology - ICAMST 2013 (pp. 525-531). (Advanced Materials Research; Vol. 896). Trans Tech Publications. https://doi.org/10.4028/www.scientific.net/AMR.896.525