Back to Search
Start Over
Preliminary evaluation of resorcinol-formaldehyde carbon gels for water pollutants removal
- Source :
- Acta Chimica Slovaca. 10:54-60
- Publication Year :
- 2017
- Publisher :
- Walter de Gruyter GmbH, 2017.
-
Abstract
- The present work was aimed to evaluate the suitability of resorcinol-formaldehyde carbon gels as adsorbent for water pollutants removal. The carbon gels were characterized using N2 adsorption-desorption isotherm for specific surface area, and Fourier transform infrared (FTIR) for surface functional groups. Methylene blue and cesium were employed as model water pollutants. Results show that the un-oxidized carbon gel, despite its lower specific surface area (333 m2/g) displayed a 118 mg/g removal of methylene blue, that is higher than 35 mg/g by the oxidized carbon gel (418 m2/g). The evaluation of adsorption kinetics revealed a lower pseudo-first order rate constant of 0.088 h-1 for 10 mg/L methylene blue adsorption. A positive effect of surface oxidation was demonstrated for cesium adsorption. On molar basis, however, the oxidized carbon gel exhibits a selective removal towards methylene blue compared to cesium. Carbon gel is a promising candidate for water pollutants removal, and further treatment needs to be sought to boost its performance.
- Subjects :
- Formaldehyde
chemistry.chemical_element
02 engineering and technology
General Medicine
Resorcinol
010501 environmental sciences
021001 nanoscience & nanotechnology
01 natural sciences
chemistry.chemical_compound
Adsorption
Reaction rate constant
chemistry
Specific surface area
Environmental chemistry
Fourier transform infrared spectroscopy
0210 nano-technology
Carbon
Methylene blue
0105 earth and related environmental sciences
Nuclear chemistry
Subjects
Details
- ISSN :
- 1337978X
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Acta Chimica Slovaca
- Accession number :
- edsair.doi...........336ec77df32beec190aa0aea72aae0f3