Back to Search
Start Over
Morphology controlled synthesis of α-FeOOH crystals and their shape-dependent adsorption for decontamination of Congo red dye
- Source :
- Materials Research Innovations. 19:385-391
- Publication Year :
- 2015
- Publisher :
- Informa UK Limited, 2015.
-
Abstract
- The α-FeOOH nanorods with superb adsorption properties have been synthesised by a facile and scaled-up method. In this approach, KOH solution concentration plays a crucial role in controlling the morphology of α-FeOOH nanaocrystals. It has been demonstrated that the synthesised α-FeOOH nanorods are about 10 nm in diameter and 100 nm in length. The α-FeOOH nanorods have a high specific surface area (333 m2 g− 1), and exhibited super adsorption properties, with maximum adsorption capacity of 104.2 mg g− 1 for Congo red (CR). The as-prepared nanorods show a larger specific surface area than the nanoparticles do, which enhance their adsorption capacity and increase their potential for application in wastewater treatment. The adsorption process of CR on α-FeOOH nanorods was systematically investigated, which was found to obey the pseudo-second-order rate equation and Langmuir adsorption model.
- Subjects :
- Materials science
Morphology (linguistics)
Mechanical Engineering
Langmuir adsorption model
Nanoparticle
Nanotechnology
Rate equation
Condensed Matter Physics
Congo red
chemistry.chemical_compound
symbols.namesake
Adsorption
chemistry
Chemical engineering
Mechanics of Materials
Specific surface area
symbols
General Materials Science
Nanorod
Subjects
Details
- ISSN :
- 1433075X and 14328917
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- Materials Research Innovations
- Accession number :
- edsair.doi...........53301190d7332723d24b6b24b1e8871e