Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst

Increasing of carbon dioxide (CO2) concentration in atmosphere has gain major attention by the researchers. This is due to CO2 ability to absorb heat from the UV light and emits the heat to atmosphere resulted in earth warming. In order to overcome this problem, the researchers come out with many so...

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Main Author:	Nik Fatihaf, Nek Kamarzaman
Format:	Undergraduates Project Papers
Language:	English
Published:	2012
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/7102/ http://umpir.ump.edu.my/id/eprint/7102/ http://umpir.ump.edu.my/id/eprint/7102/1/CD7180.pdf

id	ump-7102
recordtype	eprints
spelling	ump-71022015-03-03T09:34:18Z http://umpir.ump.edu.my/id/eprint/7102/ Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst Nik Fatihaf, Nek Kamarzaman TP Chemical technology Increasing of carbon dioxide (CO2) concentration in atmosphere has gain major attention by the researchers. This is due to CO2 ability to absorb heat from the UV light and emits the heat to atmosphere resulted in earth warming. In order to overcome this problem, the researchers come out with many solutions. Conventional method and also Advanced Oxidation Process (AOP) have been invented as a way to reduce the concentration of the predominant greenhouse gases especially CO2. However, AOP has come out as the emerging technologies due to its practicality in reduction process in industry. This study will be focusing on one of the AOP which is photocatalytic reduction process of CO2. In this process, a photocatalyst was needed. In this research, photocatalyst used was ZnS-Kaolin, a combination of semiconductor ZnS and phyllosilicate mineral, Kaolin. ZnS-Kaolin was prepared by using two methods which are hydrothermal method and simpler impregnation method. In this photocatalytic reduction process, the catalyst was dispersed in medium solution, NaOH aqueous and hence help to catalyze the process. The characteristics of the developed ZnS-Kaolin were observed by using Scanning Electron Microscope (SEM) and Thermal Gravimetric Analyzer (TGA). The effect of parameters such as irradiation time and dosage of ZnS-Kaolin used were observed and studied. This process was produced usable products such as methanol and was analyzed by using High Performance Liquid Chromatography (HPLC). Based on the results, from SEM analysis, it was found that raw Kaolin was constructed from hexagonal flakes structure. Meanwhile, both ZnS-Kaolin prepared from Hydrothermal and Impregnation methods are consists of leaf-like layers structure with ZnS nanoparticles deposited on Kaolin structure. From TGA analysis, it was found that ZnS-Kaolin prepared from Hydrothermal method has higher thermal resistance compared to ZnS-Kaolin prepared from Impregnation method. Meanwhile, for photoreduction process of CO2, methanol production was observed to be maximum by using ZnS-Kaolin prepared from Hydrothermal method at dosage of 0.75 g and at 2 hours irradiation time. In conclusion, ZnS-Kaolin prepared by using Hydrothermal method shows better performance in photoreduction process of CO2 compared to ZnS-Kaolin prepared from Impregnation method. 2012-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7102/1/CD7180.pdf Nik Fatihaf, Nek Kamarzaman (2012) Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst. Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:73988&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Nik Fatihaf, Nek Kamarzaman Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst
description	Increasing of carbon dioxide (CO2) concentration in atmosphere has gain major attention by the researchers. This is due to CO2 ability to absorb heat from the UV light and emits the heat to atmosphere resulted in earth warming. In order to overcome this problem, the researchers come out with many solutions. Conventional method and also Advanced Oxidation Process (AOP) have been invented as a way to reduce the concentration of the predominant greenhouse gases especially CO2. However, AOP has come out as the emerging technologies due to its practicality in reduction process in industry. This study will be focusing on one of the AOP which is photocatalytic reduction process of CO2. In this process, a photocatalyst was needed. In this research, photocatalyst used was ZnS-Kaolin, a combination of semiconductor ZnS and phyllosilicate mineral, Kaolin. ZnS-Kaolin was prepared by using two methods which are hydrothermal method and simpler impregnation method. In this photocatalytic reduction process, the catalyst was dispersed in medium solution, NaOH aqueous and hence help to catalyze the process. The characteristics of the developed ZnS-Kaolin were observed by using Scanning Electron Microscope (SEM) and Thermal Gravimetric Analyzer (TGA). The effect of parameters such as irradiation time and dosage of ZnS-Kaolin used were observed and studied. This process was produced usable products such as methanol and was analyzed by using High Performance Liquid Chromatography (HPLC). Based on the results, from SEM analysis, it was found that raw Kaolin was constructed from hexagonal flakes structure. Meanwhile, both ZnS-Kaolin prepared from Hydrothermal and Impregnation methods are consists of leaf-like layers structure with ZnS nanoparticles deposited on Kaolin structure. From TGA analysis, it was found that ZnS-Kaolin prepared from Hydrothermal method has higher thermal resistance compared to ZnS-Kaolin prepared from Impregnation method. Meanwhile, for photoreduction process of CO2, methanol production was observed to be maximum by using ZnS-Kaolin prepared from Hydrothermal method at dosage of 0.75 g and at 2 hours irradiation time. In conclusion, ZnS-Kaolin prepared by using Hydrothermal method shows better performance in photoreduction process of CO2 compared to ZnS-Kaolin prepared from Impregnation method.
format	Undergraduates Project Papers
author	Nik Fatihaf, Nek Kamarzaman
author_facet	Nik Fatihaf, Nek Kamarzaman
author_sort	Nik Fatihaf, Nek Kamarzaman
title	Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst
title_short	Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst
title_full	Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst
title_fullStr	Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst
title_full_unstemmed	Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst
title_sort	photocatalytic reduction of co2 using zns pillaring on kaolin catalyst
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/7102/ http://umpir.ump.edu.my/id/eprint/7102/ http://umpir.ump.edu.my/id/eprint/7102/1/CD7180.pdf
first_indexed	2023-09-18T22:03:27Z
last_indexed	2023-09-18T22:03:27Z
_version_	1777414552013504512

Photocatalytic Reduction of Co2 Using Zns Pillaring on Kaolin Catalyst

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