ZnS pillaring on kaolin catalyst for the photocatalytic reduction of CO2 into methanol

Nor Khonisah D., . and Nik Fatihah N. K, . (2014) ZnS pillaring on kaolin catalyst for the photocatalytic reduction of CO2 into methanol. [Proceedings Paper]

Increasing of carbon dioxide C02 concentration in atmosphere has gain major attention by the researchers. This is because C02 can absorb heat from the UV light and emits the heat to the 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 C02. However AOP has come out as the emerging technologies due to its practicality in reduction process in industry. This study was focusing on one of the AOP which was photocatalytic reduction process of C02. In this study ZnS-Kaolin was used as photocatalyst a combination of semiconductor ZnS and phyllosilicate mineral Kaolin. ZnS-Kaolin was prepared by using two methods which were hydrothermal and impregnation method. In this photocatalytic reduction process the catalyst was dispersed in medium solution NaOH aqueous and hence helps to catalyze the process. The characteristics of the developed ZnS-Kaolin were observed by using SEM XRD and TGA. The effect of parameters such as irradiation time and dosage of ZnS-Kaoli:l catalyst were studied. Methanol as a main product was analyzed using High Performance Liquid Chromatography HPLC. As a results ZnS-Kaolin prepared by hydrothermal method shows better performance compared with catalyst prepared from impregnation method in photoreduction process of C02.

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Abstract

Increasing of carbon dioxide C02 concentration in atmosphere has gain major attention by the researchers. This is because C02 can absorb heat from the UV light and emits the heat to the 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 C02. However AOP has come out as the emerging technologies due to its practicality in reduction process in industry. This study was focusing on one of the AOP which was photocatalytic reduction process of C02. In this study ZnS-Kaolin was used as photocatalyst a combination of semiconductor ZnS and phyllosilicate mineral Kaolin. ZnS-Kaolin was prepared by using two methods which were hydrothermal and impregnation method. In this photocatalytic reduction process the catalyst was dispersed in medium solution NaOH aqueous and hence helps to catalyze the process. The characteristics of the developed ZnS-Kaolin were observed by using SEM XRD and TGA. The effect of parameters such as irradiation time and dosage of ZnS-Kaoli:l catalyst were studied. Methanol as a main product was analyzed using High Performance Liquid Chromatography HPLC. As a results ZnS-Kaolin prepared by hydrothermal method shows better performance compared with catalyst prepared from impregnation method in photoreduction process of C02.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia TP339 B615 Call Number
AGROVOC Term:	Kaolinite
AGROVOC Term:	Catalysts
AGROVOC Term:	Carbon dioxide
AGROVOC Term:	Photooxidation
AGROVOC Term:	High performance liquid chromatography
AGROVOC Term:	Global warming
AGROVOC Term:	Atmospheric pollution
AGROVOC Term:	Oxidation
AGROVOC Term:	Kaolinite
AGROVOC Term:	HPLC
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/12068

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