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Adsorption of hydrogen sulphide from aqueous solutions using modified nano/micro fibrillated cellulose
Lappeenranta Univ Technol.
Lappeenranta Univ Technol.
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.ORCID iD: 0000-0002-3565-9943
Florida Int Univ.
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2014 (English)In: Environmental technology, ISSN 0959-3330, Vol. 35, no 18, 2334-2346 p.Article in journal (Refereed) Published
Abstract [en]

In the present study, microfibrillated cellulose (MFC) was modified by aminopropyltriethoxysilane (APS), hydroxy-carbonated apatite (HAP), or epoxy in order to produce novel nanostructured adsorbents for the removal of hydrogen sulphide (H2S) from the aqueous solutions. Structural properties of the modified MFC materials were examined using a scanning electron microscope, Fourier transform infrared spectroscopy and acid/base titration. These methods were used to verify the presence of nanostructures on the adsorbents surfaces as well as functionalities suitable for H2S adsorption. Adsorption of H2S by prepared adsorbents was investigated in batch mode under different experimental conditions, i.e. varying pH and H2S concentrations. H2S uptake was found to be 103.95, 13.38 and 12.73mg/g by APS/MFC, HAP/MFC and epoxy/MFC, respectively from 80mg/L H2S solution. The equilibrium data were best described by the Langmuir isotherm for HAP/MFC and APS/MFC and the Sips isotherm for epoxy/MFC.

Place, publisher, year, edition, pages
2014. Vol. 35, no 18, 2334-2346 p.
Keyword [en]
adsorption, hydrogen sulphide, nanocellulose, water treatment, isotherms
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-36084DOI: 10.1080/09593330.2014.903300ISI: 000336432700009OAI: oai:DiVA.org:lnu-36084DiVA: diva2:734407
Available from: 2014-07-17 Created: 2014-07-17 Last updated: 2014-07-17Bibliographically approved

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Bhatnagar, Amit
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
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  • de-DE
  • en-GB
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  • nn-NO
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