Preparation of novel diatomite-based composites: applications in organic effluents sorption
| Autor: | Jean-Philippe Basly, Boualem Hamdi, Michel Baudu, Nedjma Khelifa |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
021110 strategic
defence & security studies Aqueous solution Materials science Chromatography Environmental remediation Composite number 0211 other engineering and technologies Ocean Engineering Sorption 02 engineering and technology 010501 environmental sciences 01 natural sciences Pollution chemistry.chemical_compound Adsorption chemistry medicine Methyl orange Hybrid material 0105 earth and related environmental sciences Water Science and Technology Activated carbon medicine.drug Nuclear chemistry |
| Zdroj: | Desalination and Water Treatment. 57:12443-12452 |
| ISSN: | 1944-3986 1944-3994 |
| DOI: | 10.1080/19443994.2015.1052994 |
| Popis: | A new diatomite-based composite is prepared and used for environmental remediation. The Algerian diatomite has been used for the first time for this application. Preparation conditions showed increased surface area with improved sorption properties. This composite consisting of diatomite (Dia) and activated carbon (C) was prepared using a mixture of diatomaceous earth and glucose. Effects of thermal and chemical treatments are studied. methylene blue (MB), methyl orange (MO) and para-nitro-phenol (PNP) from aqueous solution were chosen as pollutants to test retention capacity. Physical, chemical and structural properties of these new hybrid materials have been investigated by several methods. The surface areas of pure and modified diatomite are estimated to be (22 m2 g−1) and (100–173 m2 g−1), respectively. Sorption kinetics and isotherms for MB, MO and PNP were carried out in order to determine their respective adsorption capacity. The surface charges (negatives) and macroporosity of diatomite di... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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