| Autor: |
Hanafiah, M.A.K.M., Ismail, Mardhiah, Wan Ngah, Wan Saime, Wan Mat Khalir, Wan Khaima Azira, Zakaria, Haslizaidi |
| Zdroj: |
Key Engineering Materials; December 2013, Vol. 594 Issue: 1 p270-274, 5p |
| Abstrakt: |
Neem (Azadirachta indica) leaf powder was modified using a chelating agent, ethylenediaminetetaraacetic dianhydride (EDTAD) and the adsorption performance in removing methylene blue (MB) was investigated under batch mode. The EDTAD modified neem leaf powder (ENLP) was characterized by spectroscopic technique and elemental analysis. Fourier transform infrared (FTIR) spectra indicated that the ROH, RCOOR, RCOO- and RNH2 groups were involved in the removal of MB. The maximum adsorption capacity calculated from the Langmuir isotherm model was 178.57 mg/g at 318 K. Adsorption kinetic was found to be fitted well with the pseudo-first-order model. This study suggests that ENLP can be an attractive adsorbent for MB removal from diluted industrial wastewater. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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