Tritium label in studying sorption of humic substances by carbon-based nanomaterials
Open Access
- 31 March 2011
- journal article
- Published by European Journal of Chemistry in European Journal of Chemistry
- Vol. 2 (1), 61-64
- https://doi.org/10.5155/eurjchem.2.1.61-64.229
Abstract
Sorption capacity of single-walled carbon nanotubes, detonated nanodiamonds and graphene to humic substances was studied by radiotracer method. Tritium labeled brown coal humic acids and fulvic acids separated from Suwannee River were used as sorbates. Adsorption isotherms were described by Langmuir equation. It was found that, for all tested carbon-based nanomaterials, adsorption of coal humic acids is higher than of river fulvic acids. Adsorption capacity of nanomaterials in attitude to humic substances was changed in the order, nanodiamonds < single-walled nanotubes < graphene. Composites of humic substances with carbon-based nanomaterials were subjected to dynamic light scattering analysis.Keywords
This publication has 17 references indexed in Scilit:
- Application of carbon nanotube technology for removal of contaminants in drinking water: A reviewScience of The Total Environment, 2009
- Sorption of atrazine onto humic acids (HAs) coated nanoparticlesColloids and Surfaces A: Physicochemical and Engineering Aspects, 2009
- Environmental Applications of Carbon-Based NanomaterialsEnvironmental Science & Technology, 2008
- Natural Organic Matter (NOM) Adsorption to Multi-Walled Carbon Nanotubes: Effect of NOM Characteristics and Water Quality ParametersEnvironmental Science & Technology, 2008
- Humic acid protein complexationGeochimica et Cosmochimica Acta, 2008
- Adsorption kinetics, thermodynamics and desorption of natural dissolved organic matter by multiwalled carbon nanotubesJournal of Environmental Science and Health, Part A, 2007
- Molecular Weight Characteristics of Humic Substances from Different Environments As Determined by Size Exclusion Chromatography and Their Statistical EvaluationEnvironmental Science & Technology, 2003
- Development in aquatic humic chemistryAgronomy for Sustainable Development, 2000
- Size-exclusion chromatographic descriptors of humic substancesAnalytica Chimica Acta, 2000
- SIZE EXCLUSION CHROMATOGRAPHY OF HUMIC SUBSTANCES: LIMITS, PERSPECTIVES AND PROSPECTIVESSoil Science, 1999