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Photocatalytic degradation of methylene blue dye utilizing nano-Tio2 photocatalyst with montmorillonite: Characterization, process and kinetic studies

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Bibliographic Details
Main Author: Ng, Wen Jia
Other Authors: Zulfakar Mokhtar (Advisor)
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis 2011
Subjects:
Nano-titanium dioxide (nano-TiO2)
Montmorillonite
Water pollution
Methylene blue (MB)
Textile industries
Dyes
Wastewater treatment
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13362
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spelling my.unimap-133622011-08-02T01:36:25Z Photocatalytic degradation of methylene blue dye utilizing nano-Tio2 photocatalyst with montmorillonite: Characterization, process and kinetic studies Ng, Wen Jia Zulfakar Mokhtar (Advisor) Nano-titanium dioxide (nano-TiO2) Montmorillonite Water pollution Methylene blue (MB) Textile industries Dyes Wastewater treatment Access is limited to UniMAP community. Nano-titanium dioxide (nano-TiO2) photocatalyst was synthesized through sol-gel method. A sol-gel solution was prepared using the formulation of 1 TTIP: 2 C2H5OH: 5. H20. A simple batch reactor was designed and used for process studies. The photocatalytic degradation of methylene blue was studied under different operating parameters. The initial methylene blue concentration, catalyst dosage and pH value of methylene blue were studied as important process variables. The nano-TiO2 catalyst was characterized by using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDX) analysis. The degradation of Methylene Blue (MB) concentration under UV radiation is more efficient compared to without ultraviolet (UV) radiation. The highest percentage of degradation was achieved when the concentration of methylene blue was at 20ppm. The degradation of MB increased with an increase in catalyst dosing up to an optimum loading of 0.75g. Degradation efficiency decreased in the order of pH2 > pH5 > pH7 > pH9. The photocatalytic degradation of methylene blue shows a pseudo-first order kinetics. The highest apparent rate constant, kapp was achieved at the initial concentration of 20ppm, which is 0.0183min-1. The kinetics evaluation on methylene blue degradation was also studied to determine the rate constant, k and adsorption equilibrium constant, K. The value of k and K were estimated by using non-linear regression in POLYMATH software. 2011-08-02T01:36:25Z 2011-08-02T01:36:25Z 2011-05 Learning Object http://hdl.handle.net/123456789/13362 en Universiti Malaysia Perlis School of Bioprocess Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Nano-titanium dioxide (nano-TiO2)
Montmorillonite
Water pollution
Methylene blue (MB)
Textile industries
Dyes
Wastewater treatment
spellingShingle Nano-titanium dioxide (nano-TiO2)
Montmorillonite
Water pollution
Methylene blue (MB)
Textile industries
Dyes
Wastewater treatment
Ng, Wen Jia
Photocatalytic degradation of methylene blue dye utilizing nano-Tio2 photocatalyst with montmorillonite: Characterization, process and kinetic studies
description Access is limited to UniMAP community.
author2 Zulfakar Mokhtar (Advisor)
author_facet Zulfakar Mokhtar (Advisor)
Ng, Wen Jia
format Learning Object
author Ng, Wen Jia
author_sort Ng, Wen Jia
title Photocatalytic degradation of methylene blue dye utilizing nano-Tio2 photocatalyst with montmorillonite: Characterization, process and kinetic studies
title_short Photocatalytic degradation of methylene blue dye utilizing nano-Tio2 photocatalyst with montmorillonite: Characterization, process and kinetic studies
title_full Photocatalytic degradation of methylene blue dye utilizing nano-Tio2 photocatalyst with montmorillonite: Characterization, process and kinetic studies
title_fullStr Photocatalytic degradation of methylene blue dye utilizing nano-Tio2 photocatalyst with montmorillonite: Characterization, process and kinetic studies
title_full_unstemmed Photocatalytic degradation of methylene blue dye utilizing nano-Tio2 photocatalyst with montmorillonite: Characterization, process and kinetic studies
title_sort photocatalytic degradation of methylene blue dye utilizing nano-tio2 photocatalyst with montmorillonite: characterization, process and kinetic studies
publisher Universiti Malaysia Perlis
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13362
_version_ 1643790818832547840
score 13.18916

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