A kinetic model for the photocatalytic reduction of CO2 to methanol pathways
Carbon dioxide (CO2) is one of the greenhouse gases that contribute to global warming. CO2 could be converted to valuable products such as hydrocarbons through the photocatalytic process. The aim of this research was to develop the kinetic model for the photocatalytic reduction of CO2 to methanol (C...
| Main Authors: | , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IOP Publishing Ltd
2019
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/35836/ http://umpir.ump.edu.my/id/eprint/35836/1/A%20kinetic%20model%20for%20the%20photocatalytic%20reduction%20of%20CO2%20to%20methanol%20pathways.pdf |
| _version_ | 1848824882959220736 |
|---|---|
| author | Hamidah, Abdullah Khan, Md. Maksudur Rahman Zahira, Yaakob Nur Aminatulmimi, Ismail |
| author_facet | Hamidah, Abdullah Khan, Md. Maksudur Rahman Zahira, Yaakob Nur Aminatulmimi, Ismail |
| author_sort | Hamidah, Abdullah |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Carbon dioxide (CO2) is one of the greenhouse gases that contribute to global warming. CO2 could be converted to valuable products such as hydrocarbons through the photocatalytic process. The aim of this research was to develop the kinetic model for the photocatalytic reduction of CO2 to methanol (CH3OH) in liquid phase reaction using cerium oxide-titanium dioxide (CeO2-TiO2) catalyst. The Langmuir-Hinshelwood approach was used in developing rate laws for the catalytic reaction using the catalytic reaction mechanism proposed. The catalytic reaction mechanism is about the adsorption of reactant (CO2 dissolved in the liquid phase), the reaction on catalyst surface and desorption of product. The experimental kinetic data were evaluated in the Polymath 6.1 software. In this study, two types of mechanism are proposed whereas one is considered the carbon monoxide (CO) oxidation while the other is not. Based on the model fitting, it was found that the model considers the CO oxidation is fitted well with the experimental data represents that the oxidation reaction of intermediate product, CO is the rate-determining step in the photocatalytic reduction of CO2 to CH3OH in liquid phase reaction. |
| first_indexed | 2025-11-15T03:20:06Z |
| format | Conference or Workshop Item |
| id | ump-35836 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:20:06Z |
| publishDate | 2019 |
| publisher | IOP Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-358362022-12-27T03:31:01Z http://umpir.ump.edu.my/id/eprint/35836/ A kinetic model for the photocatalytic reduction of CO2 to methanol pathways Hamidah, Abdullah Khan, Md. Maksudur Rahman Zahira, Yaakob Nur Aminatulmimi, Ismail QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology Carbon dioxide (CO2) is one of the greenhouse gases that contribute to global warming. CO2 could be converted to valuable products such as hydrocarbons through the photocatalytic process. The aim of this research was to develop the kinetic model for the photocatalytic reduction of CO2 to methanol (CH3OH) in liquid phase reaction using cerium oxide-titanium dioxide (CeO2-TiO2) catalyst. The Langmuir-Hinshelwood approach was used in developing rate laws for the catalytic reaction using the catalytic reaction mechanism proposed. The catalytic reaction mechanism is about the adsorption of reactant (CO2 dissolved in the liquid phase), the reaction on catalyst surface and desorption of product. The experimental kinetic data were evaluated in the Polymath 6.1 software. In this study, two types of mechanism are proposed whereas one is considered the carbon monoxide (CO) oxidation while the other is not. Based on the model fitting, it was found that the model considers the CO oxidation is fitted well with the experimental data represents that the oxidation reaction of intermediate product, CO is the rate-determining step in the photocatalytic reduction of CO2 to CH3OH in liquid phase reaction. IOP Publishing Ltd 2019-12-09 Conference or Workshop Item PeerReviewed pdf en cc_by http://umpir.ump.edu.my/id/eprint/35836/1/A%20kinetic%20model%20for%20the%20photocatalytic%20reduction%20of%20CO2%20to%20methanol%20pathways.pdf Hamidah, Abdullah and Khan, Md. Maksudur Rahman and Zahira, Yaakob and Nur Aminatulmimi, Ismail (2019) A kinetic model for the photocatalytic reduction of CO2 to methanol pathways. In: IOP Conference Series: Materials Science and Engineering; 1st Process Systems Engineering and Safety Symposium 2019, ProSES 2019 , 4 September 2019 , Kuantan, Pahang, Malaysia. pp. 1-8., 702 (012026). ISSN 1757-8981 (Published) https://doi.org/10.1088/1757-899X/702/1/012026 |
| spellingShingle | QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology Hamidah, Abdullah Khan, Md. Maksudur Rahman Zahira, Yaakob Nur Aminatulmimi, Ismail A kinetic model for the photocatalytic reduction of CO2 to methanol pathways |
| title | A kinetic model for the photocatalytic reduction of CO2 to methanol pathways |
| title_full | A kinetic model for the photocatalytic reduction of CO2 to methanol pathways |
| title_fullStr | A kinetic model for the photocatalytic reduction of CO2 to methanol pathways |
| title_full_unstemmed | A kinetic model for the photocatalytic reduction of CO2 to methanol pathways |
| title_short | A kinetic model for the photocatalytic reduction of CO2 to methanol pathways |
| title_sort | kinetic model for the photocatalytic reduction of co2 to methanol pathways |
| topic | QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/35836/ http://umpir.ump.edu.my/id/eprint/35836/ http://umpir.ump.edu.my/id/eprint/35836/1/A%20kinetic%20model%20for%20the%20photocatalytic%20reduction%20of%20CO2%20to%20methanol%20pathways.pdf |