Nanostructured polyaniline rice husk composite as adsorption materials synthesized by different methods
| Autor: | Thi Binh Phan, Thi Thanh Thuy Mai, Thi Xuan Mai, Thi Tot Pham, Minh Quy Bui, Hai Yen Tran |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
Nanocomposite Scanning electron microscope Inorganic chemistry Langmuir adsorption model Industrial and Manufacturing Engineering chemistry.chemical_compound symbols.namesake Adsorption Aniline chemistry Transmission electron microscopy Polyaniline symbols General Materials Science Ammonium persulfate Electrical and Electronic Engineering Nuclear chemistry |
| Zdroj: | Advances in Natural Sciences: Nanoscience and Nanotechnology. 5:015010 |
| ISSN: | 2043-6262 |
| DOI: | 10.1088/2043-6262/5/1/015010 |
| Popis: | Composites based on polyaniline (PANi) and rice husk (RH) were prepared by two methods: the first one was chemical method by combining RH contained in acid medium and aniline using ammonium persulfate as an oxidation agent and the second one was that of soaking RH into PANi solution. The presence of PANi combined with RH to form nanocomposite was clearly demonstrated by infrared (IR) spectra as well as by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images. Lead(II) and cadmium(II) ion concentrations in solution before and after adsorption process on those composites were analysed by atomic adsorption spectroscopy. Of the above preparation methods, the soaking one provided a composite onto which the maximum adsorption capacity was higher for lead(II) ion (200?mg?g?1), but lower for cadmium(II) ion (106.383?mg?g?1) in comparison with the chemical one. However, their adsorption process occurring on both composites also fitted well into the Langmuir isotherm model. |
| Databáze: | OpenAIRE |
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