Removal of p-Nitrophenol from Aqueous Solution Using Synthesized Silica-Magnetite Composite

Silica-magnetite composite was synthesized as model adsorbent for the removal of p-nitrophenol (p-NP), a problematic toxicant present in effluents from pharmaceutical and allied industries. The adsorption behavior was studied by batch method. Prepared adsorbent was fully characterized using Fourier...

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Main Authors: Adekola F.A., Orimolade B.O., Adebayo G.B.
Format: บทความวารสาร
Language:English
Published: Science Faculty of Chiang Mai University 2019
Online Access:http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=8291
http://cmuir.cmu.ac.th/jspui/handle/6653943832/63925
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-639252019-05-07T09:59:39Z Removal of p-Nitrophenol from Aqueous Solution Using Synthesized Silica-Magnetite Composite Adekola F.A. Orimolade B.O. Adebayo G.B. Silica-magnetite composite was synthesized as model adsorbent for the removal of p-nitrophenol (p-NP), a problematic toxicant present in effluents from pharmaceutical and allied industries. The adsorption behavior was studied by batch method. Prepared adsorbent was fully characterized using Fourier Transform Infra-red spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and X-Ray Fluorescence. The optimum conditions of adsorption were determined by investigating the effect of initial p-NP concentration, contact time, adsorbent dose, pH value of aqueous solution and temperature. Adsorption equilibrium time was found to be 60 min. The optimum initial concentration of p-NP was 70 mg/L while the optimum temperature and pH were 30 °C and 2 respectively. The equilibrium adsorption experimental data were fitted best the Langmuir isotherm. The pseudo-second order kinetic model described the adsorption kinetics more effectively. The thermodynamic studies revealed that the adsorption process is spontaneous and feasible. The experimental results have revealed the potential of synthesized material for the removal of p-nitrophenol from aqueous solution. 2019-05-07T09:59:39Z 2019-05-07T09:59:39Z 2017 บทความวารสาร 0125-2526 http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=8291 http://cmuir.cmu.ac.th/jspui/handle/6653943832/63925 Eng Science Faculty of Chiang Mai University
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Silica-magnetite composite was synthesized as model adsorbent for the removal of p-nitrophenol (p-NP), a problematic toxicant present in effluents from pharmaceutical and allied industries. The adsorption behavior was studied by batch method. Prepared adsorbent was fully characterized using Fourier Transform Infra-red spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and X-Ray Fluorescence. The optimum conditions of adsorption were determined by investigating the effect of initial p-NP concentration, contact time, adsorbent dose, pH value of aqueous solution and temperature. Adsorption equilibrium time was found to be 60 min. The optimum initial concentration of p-NP was 70 mg/L while the optimum temperature and pH were 30 °C and 2 respectively. The equilibrium adsorption experimental data were fitted best the Langmuir isotherm. The pseudo-second order kinetic model described the adsorption kinetics more effectively. The thermodynamic studies revealed that the adsorption process is spontaneous and feasible. The experimental results have revealed the potential of synthesized material for the removal of p-nitrophenol from aqueous solution.
format บทความวารสาร
author Adekola F.A.
Orimolade B.O.
Adebayo G.B.
spellingShingle Adekola F.A.
Orimolade B.O.
Adebayo G.B.
Removal of p-Nitrophenol from Aqueous Solution Using Synthesized Silica-Magnetite Composite
author_facet Adekola F.A.
Orimolade B.O.
Adebayo G.B.
author_sort Adekola F.A.
title Removal of p-Nitrophenol from Aqueous Solution Using Synthesized Silica-Magnetite Composite
title_short Removal of p-Nitrophenol from Aqueous Solution Using Synthesized Silica-Magnetite Composite
title_full Removal of p-Nitrophenol from Aqueous Solution Using Synthesized Silica-Magnetite Composite
title_fullStr Removal of p-Nitrophenol from Aqueous Solution Using Synthesized Silica-Magnetite Composite
title_full_unstemmed Removal of p-Nitrophenol from Aqueous Solution Using Synthesized Silica-Magnetite Composite
title_sort removal of p-nitrophenol from aqueous solution using synthesized silica-magnetite composite
publisher Science Faculty of Chiang Mai University
publishDate 2019
url http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=8291
http://cmuir.cmu.ac.th/jspui/handle/6653943832/63925
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