The high efficiency of Al2O3–SiO2–CuO nanocomposites as an adsorbent: synthesis and dye removal efficiency

The high efficiency of Al2O3–SiO2–CuO nanocomposites as an adsorbent: synthesis and dye... In this study, Al2O3–SiO2 and Al2O3–SiO2–CuO nanocomposites with different amounts of CuO (40, 50 and 60 %) were synthesized by the sol–gel method and characterized by thermogravimetric and differential thermal analysis, X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, energy dispersive spectrometry and zeta potential analysis. The nanocomposites were applied as an adsorbent for removal of methylene blue (MB) from aqueous solution. The relation between removal percentages with variables such as adsorbent dosage (0.001, 0.003, 0.005, 0.01 and 0.02 g), adsorbent type and initial MB concentration (10, 20, 30 and 40 mg/L) was investigated, and optimized conditions were found to be 0.01 g, 50 % CuO and 10 mg/L, respectively. In this condition, the removal efficiency of MB was 98 %. The resulting zeta potential showed that the surfaces of Al2O3–SiO2–CuO nanocomposite and of Al2O3–SiO2 have negative charges, at −45 and −15 mV, respectively, while that of CuO has a positive charge of approximately +13 mV. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

The high efficiency of Al2O3–SiO2–CuO nanocomposites as an adsorbent: synthesis and dye removal efficiency

Loading next page...
 
/lp/springer_journal/the-high-efficiency-of-al2o3-sio2-cuo-nanocomposites-as-an-adsorbent-brtbwAJFgH
Publisher
Springer Journals
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2341-6
Publisher site
See Article on Publisher Site

Abstract

In this study, Al2O3–SiO2 and Al2O3–SiO2–CuO nanocomposites with different amounts of CuO (40, 50 and 60 %) were synthesized by the sol–gel method and characterized by thermogravimetric and differential thermal analysis, X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, energy dispersive spectrometry and zeta potential analysis. The nanocomposites were applied as an adsorbent for removal of methylene blue (MB) from aqueous solution. The relation between removal percentages with variables such as adsorbent dosage (0.001, 0.003, 0.005, 0.01 and 0.02 g), adsorbent type and initial MB concentration (10, 20, 30 and 40 mg/L) was investigated, and optimized conditions were found to be 0.01 g, 50 % CuO and 10 mg/L, respectively. In this condition, the removal efficiency of MB was 98 %. The resulting zeta potential showed that the surfaces of Al2O3–SiO2–CuO nanocomposite and of Al2O3–SiO2 have negative charges, at −45 and −15 mV, respectively, while that of CuO has a positive charge of approximately +13 mV.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Nov 16, 2015

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off