Physiochemical properties of TiO2 nanoparticle loaded APTES-functionalized MWCNTs composites and their photocatalytic activity with kinetic study
In this study, functionalized-MWCNTs with 3-aminopropyltriethoxysilane (APTES) loaded titania nanoparticles (MWCNTs-APTES-TiO2) were prepared to investigate their physicochemical properties and photocatalytic activity for methyl orange (MO) degradation. The TiO2 nanoparticles, functionalized-MNCNT a...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-01-01
|
| Series: | Arabian Journal of Chemistry |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535218301576 |
| _version_ | 1819267756817645568 |
|---|---|
| author | Amirah Ahmad Mohd Hasmizam Razali Mazidah Mamat Karimah Kassim Khairul Anuar Mat Amin |
| author_facet | Amirah Ahmad Mohd Hasmizam Razali Mazidah Mamat Karimah Kassim Khairul Anuar Mat Amin |
| author_sort | Amirah Ahmad |
| collection | DOAJ |
| description | In this study, functionalized-MWCNTs with 3-aminopropyltriethoxysilane (APTES) loaded titania nanoparticles (MWCNTs-APTES-TiO2) were prepared to investigate their physicochemical properties and photocatalytic activity for methyl orange (MO) degradation. The TiO2 nanoparticles, functionalized-MNCNT and composite powders were characterized by XRD, raman, and TEM. The results obtained proved that titania (TiO2) nanoparticles was successfully loaded on APTES-MWCNTs. For application, MWCNTs-APTES-TiO2 composites were used as photocatalyst for degradation of methyl orange (MO) in aqueous solution under UV light irradiation and the result shows that 87% MO was degraded after 180 min. Kinetic analysis indicated that photocatalytic degradation of MO solution by MWCNTs-APTES-TiO2 obeyed second-order kinetic model (R2 > 0.95), supported by half-life equations and graph. Because of the presence of carbon nanotubes accelerated the degradation of methyl orange due to inhibition of electron-hole recombination, the formation of additional hydroxyl radicals and functional groups of the latter had an inhibitory effect on the degradation of methyl orange. This study suggested the MWCNTs-APTES-TiO2 nanocomposite has considerable potential as environmental photocatalyst due to higher degradation rate as compared to bare TiO2. Keywords: Photocatalyst, Titanium dioxide, Multi-walled carbon nanotubes, Methyl orange, Degradation |
| first_indexed | 2024-12-23T21:22:14Z |
| format | Article |
| id | doaj.art-fe44c8e1baf24c4c97d312ea42b438b4 |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-12-23T21:22:14Z |
| publishDate | 2020-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-fe44c8e1baf24c4c97d312ea42b438b42022-12-21T17:30:44ZengElsevierArabian Journal of Chemistry1878-53522020-01-0113127852794Physiochemical properties of TiO2 nanoparticle loaded APTES-functionalized MWCNTs composites and their photocatalytic activity with kinetic studyAmirah Ahmad0Mohd Hasmizam Razali1Mazidah Mamat2Karimah Kassim3Khairul Anuar Mat Amin4School of Fundamental Sciences, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, MalaysiaSchool of Fundamental Sciences, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia; Advanced Nanomaterials Research Group, School of Fundamental Science, Universiti Malaysia Terengganu, 21030 Terengganu, Malaysia; Corresponding author at: School of Fundamental Sciences, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia.School of Fundamental Sciences, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, MalaysiaCentre for Nanomaterials Research, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, MalaysiaSchool of Fundamental Sciences, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia; Advanced Nanomaterials Research Group, School of Fundamental Science, Universiti Malaysia Terengganu, 21030 Terengganu, MalaysiaIn this study, functionalized-MWCNTs with 3-aminopropyltriethoxysilane (APTES) loaded titania nanoparticles (MWCNTs-APTES-TiO2) were prepared to investigate their physicochemical properties and photocatalytic activity for methyl orange (MO) degradation. The TiO2 nanoparticles, functionalized-MNCNT and composite powders were characterized by XRD, raman, and TEM. The results obtained proved that titania (TiO2) nanoparticles was successfully loaded on APTES-MWCNTs. For application, MWCNTs-APTES-TiO2 composites were used as photocatalyst for degradation of methyl orange (MO) in aqueous solution under UV light irradiation and the result shows that 87% MO was degraded after 180 min. Kinetic analysis indicated that photocatalytic degradation of MO solution by MWCNTs-APTES-TiO2 obeyed second-order kinetic model (R2 > 0.95), supported by half-life equations and graph. Because of the presence of carbon nanotubes accelerated the degradation of methyl orange due to inhibition of electron-hole recombination, the formation of additional hydroxyl radicals and functional groups of the latter had an inhibitory effect on the degradation of methyl orange. This study suggested the MWCNTs-APTES-TiO2 nanocomposite has considerable potential as environmental photocatalyst due to higher degradation rate as compared to bare TiO2. Keywords: Photocatalyst, Titanium dioxide, Multi-walled carbon nanotubes, Methyl orange, Degradationhttp://www.sciencedirect.com/science/article/pii/S1878535218301576 |
| spellingShingle | Amirah Ahmad Mohd Hasmizam Razali Mazidah Mamat Karimah Kassim Khairul Anuar Mat Amin Physiochemical properties of TiO2 nanoparticle loaded APTES-functionalized MWCNTs composites and their photocatalytic activity with kinetic study Arabian Journal of Chemistry |
| title | Physiochemical properties of TiO2 nanoparticle loaded APTES-functionalized MWCNTs composites and their photocatalytic activity with kinetic study |
| title_full | Physiochemical properties of TiO2 nanoparticle loaded APTES-functionalized MWCNTs composites and their photocatalytic activity with kinetic study |
| title_fullStr | Physiochemical properties of TiO2 nanoparticle loaded APTES-functionalized MWCNTs composites and their photocatalytic activity with kinetic study |
| title_full_unstemmed | Physiochemical properties of TiO2 nanoparticle loaded APTES-functionalized MWCNTs composites and their photocatalytic activity with kinetic study |
| title_short | Physiochemical properties of TiO2 nanoparticle loaded APTES-functionalized MWCNTs composites and their photocatalytic activity with kinetic study |
| title_sort | physiochemical properties of tio2 nanoparticle loaded aptes functionalized mwcnts composites and their photocatalytic activity with kinetic study |
| url | http://www.sciencedirect.com/science/article/pii/S1878535218301576 |
| work_keys_str_mv | AT amirahahmad physiochemicalpropertiesoftio2nanoparticleloadedaptesfunctionalizedmwcntscompositesandtheirphotocatalyticactivitywithkineticstudy AT mohdhasmizamrazali physiochemicalpropertiesoftio2nanoparticleloadedaptesfunctionalizedmwcntscompositesandtheirphotocatalyticactivitywithkineticstudy AT mazidahmamat physiochemicalpropertiesoftio2nanoparticleloadedaptesfunctionalizedmwcntscompositesandtheirphotocatalyticactivitywithkineticstudy AT karimahkassim physiochemicalpropertiesoftio2nanoparticleloadedaptesfunctionalizedmwcntscompositesandtheirphotocatalyticactivitywithkineticstudy AT khairulanuarmatamin physiochemicalpropertiesoftio2nanoparticleloadedaptesfunctionalizedmwcntscompositesandtheirphotocatalyticactivitywithkineticstudy |