Adsorptive removal of cationic and anionic dyes from aqueous solution by utilizing almond shell as bioadsorbent

Adsorptive removal of cationic and anionic dyes from aqueous solution by utilizing almond shell... Almond shell is a food waste that is utilized as bioadsorbent for the uptake of Eriochrome Black T (EBT) and Malachite Green (MG) dyes from aqueous solutions. The biomaterial was characterized by specific surface area (BET), scanning electron microscopy, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis, and X-ray diffraction. The effects of the initial pH of solutions, particle size, adsorbent dosage, initial dye concentration, contact time, and temperature on the EBT and MG adsorption were studied using batch contact mode at 22 °C. Rapid sorption dynamics following a second-order kinetic model were shown by kinetic studies. The adsorption equilibrium data were fitted well to the Freundlich isotherm for EBT and MG as anionic and cationic dyes, respectively. The adsorption of pollutants was exothermic (ΔH 0 = −1.7 kJ mol−1 for EBT and −32 kJ mol−1 for MG). The reaction was accompanied by a decrease in entropy (ΔS 0 < 0 for EBT and MG). Negative values of ΔG 0 showed the spontaneity of the MG adsorption process. However, positive values of ΔG 0 showed that the EBT uptake by almond shell is not a spontaneous reaction. The results indicate that almond shell is a promising alternative for the biosorption of anionic (EBT) and cationic (MG) dyes from aqueous solutions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Euro-Mediterranean Journal for Environmental Integration Springer Journals

Adsorptive removal of cationic and anionic dyes from aqueous solution by utilizing almond shell as bioadsorbent

Loading next page...
 
/lp/springer_journal/adsorptive-removal-of-cationic-and-anionic-dyes-from-aqueous-solution-Oyl4BHZ0rS
Publisher
Springer International Publishing
Copyright
Copyright © 2017 by Springer International Publishing AG
Subject
Earth Sciences; Environmental Science and Engineering; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution; Environmental Management; Atmospheric Protection/Air Quality Control/Air Pollution; Waste Management/Waste Technology; Environmental Chemistry
ISSN
2365-6433
eISSN
2365-7448
D.O.I.
10.1007/s41207-017-0032-y
Publisher site
See Article on Publisher Site

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 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

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

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial