Bismuth Basic Nitrate as a Novel Adsorbent for Azo Dye Removal
| Autor: | Zulkarnain Zainal, E. A. Abdullah, T. K. Ban, Abdul Halim Abdullah, Mohd Zobir Hussein |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | E-Journal of Chemistry, Vol 9, Iss 4, Pp 1885-1896 (2012) |
| ISSN: | 2090-9810 0973-4945 |
| Popis: | Bismuth basic nitrate (BBN) and its TiO2-Ag modified sorbent, PTBA were successfully synthesized via a precipitation method. The structural characteristics of prepared sorbents were determined through different analytical techniques. The potential use of prepared sorbents for organic compounds' removal was evaluated using Methyl Orange and Sunset Yellow dyes as model pollutants in aqueous solutions. The experimental results showed that the presence of TiO2and Ag particles during the crystal growth of bismuth basic nitrate has an effect on the crystal structure, point of zero charge (pHpzc), pore volume and diameter. The lower binding energy of Ti 2p core level peak indicates the octahedral coordination of TiO2particles on the PTBA surface. The alteration of hydrophilic-hydrophobic characteristics of sorbent's surface improves the adsorptive performance of the modified sorbent and provides an efficient route for organic contaminants' removal from aqueous solutions. |
| Databáze: | OpenAIRE |
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