Synthesis of efficient activated carbon fromPeltophorum pterocarpumfor the adsorption of Safranin O and its investigation on equilibrium, kinetic, and thermodynamic studies
| Autor: | Y. Subbareddy, S. Valliammai, B. Jeyaraj, C. Jayakumar, K. S. Nagaraja |
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| Rok vydání: | 2014 |
| Předmět: |
Thermogravimetric analysis
biology Chemistry Peltophorum pterocarpum Analytical chemistry chemistry.chemical_element Ocean Engineering biology.organism_classification Pollution chemistry.chemical_compound Adsorption Safranin medicine Fourier transform infrared spectroscopy Carbon Phosphoric acid Water Science and Technology Activated carbon medicine.drug Nuclear chemistry |
| Zdroj: | Desalination and Water Treatment. 55:1048-1059 |
| ISSN: | 1944-3986 1944-3994 |
| DOI: | 10.1080/19443994.2014.928803 |
| Popis: | Activated carbon with efficient adsorption capacity was prepared using Peltophorum pterocarpum leaves impregnated with phosphoric acid. The prepared activated carbon (PAC) was characterized for their surface functional groups by Fourier transform infrared spectroscopy and for their surface morphology and chemical composition by Scanning Electron Microscopy with Energy Dispersive X-ray analysis. X-ray diffraction and Raman studies revealed that the graphitic and nanocrystalline nature of PAC. The surface area (409.01 m2/g) of the PAC was determined by Brunauer Emmet and Teller method and the material was found to be mesoporous. The thermal stability of PAC was studied with thermogravimetric analysis. The effects of contact time, adsorbent dose, initial dye concentration at different temperatures and pH on the removal percentage of Safranin O (SO) dye were investigated. With increase in contact time, adsorbent dose, pH, and temperature, an increase in the removal of SO dye was observed. The experime... |
| Databáze: | OpenAIRE |
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