Effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method
The effect of NaOH solution on the formation of nanoparticles has been the subject of ongoing debate in selenium-based material research. In this project, the robust correlation between the mechanistic growth of zinc selenide/graphene oxide (ZnSe/GO) composite and the concentration of NaOH are eluci...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/38322/ http://psasir.upm.edu.my/id/eprint/38322/1/38322.pdf |
| _version_ | 1848848847684501504 |
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| author | Lee, Han Kee Talib, Zainal Abidin Mamat @ Mat Nazir, Md Shuhazlly Wang, Enze Lim, Hong Ngee Mahdi, Mohd Adzir Ng, Eng Khoon Mohd Yusoff, Norita Al-Jumaili, Batool Eneaze Liew, Josephine Ying Chyi |
| author_facet | Lee, Han Kee Talib, Zainal Abidin Mamat @ Mat Nazir, Md Shuhazlly Wang, Enze Lim, Hong Ngee Mahdi, Mohd Adzir Ng, Eng Khoon Mohd Yusoff, Norita Al-Jumaili, Batool Eneaze Liew, Josephine Ying Chyi |
| author_sort | Lee, Han Kee |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The effect of NaOH solution on the formation of nanoparticles has been the subject of ongoing debate in selenium-based material research. In this project, the robust correlation between the mechanistic growth of zinc selenide/graphene oxide (ZnSe/GO) composite and the concentration of NaOH are elucidated. The ZnSe/GO composite was synthesized via microwave-assisted hydrothermal method and the concentrations of NaOH are controlled at 2 M, 3 M, 4 M, 5 M and 6 M. The XRD spectra show that the crystal phases of the samples exhibited a 100% purity of ZnSe when the concentration of sodium hydroxide (NaOH) was set at 4 M. The further increase of NaOH concentration leads to the formation of impurities. This result reflects the essential role of hydroxyl ions in modifying the purity state of ZnSe/GO composite. The optical band gap energy of ZnSe/GO composite also decreased from 2.68 eV to 2.64 eV when the concentration of NaOH increased from 2 M to 4 M. Therefore, it can be concluded that the optimum concentration of NaOH used in synthesizing ZnSe/GO composite is 4 M. This project provides an alternative green method in the formation of a high purity ZnSe/GO composite. |
| first_indexed | 2025-11-15T09:41:00Z |
| format | Article |
| id | upm-38322 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:41:00Z |
| publishDate | 2019 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-383222020-05-04T16:17:21Z http://psasir.upm.edu.my/id/eprint/38322/ Effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method Lee, Han Kee Talib, Zainal Abidin Mamat @ Mat Nazir, Md Shuhazlly Wang, Enze Lim, Hong Ngee Mahdi, Mohd Adzir Ng, Eng Khoon Mohd Yusoff, Norita Al-Jumaili, Batool Eneaze Liew, Josephine Ying Chyi The effect of NaOH solution on the formation of nanoparticles has been the subject of ongoing debate in selenium-based material research. In this project, the robust correlation between the mechanistic growth of zinc selenide/graphene oxide (ZnSe/GO) composite and the concentration of NaOH are elucidated. The ZnSe/GO composite was synthesized via microwave-assisted hydrothermal method and the concentrations of NaOH are controlled at 2 M, 3 M, 4 M, 5 M and 6 M. The XRD spectra show that the crystal phases of the samples exhibited a 100% purity of ZnSe when the concentration of sodium hydroxide (NaOH) was set at 4 M. The further increase of NaOH concentration leads to the formation of impurities. This result reflects the essential role of hydroxyl ions in modifying the purity state of ZnSe/GO composite. The optical band gap energy of ZnSe/GO composite also decreased from 2.68 eV to 2.64 eV when the concentration of NaOH increased from 2 M to 4 M. Therefore, it can be concluded that the optimum concentration of NaOH used in synthesizing ZnSe/GO composite is 4 M. This project provides an alternative green method in the formation of a high purity ZnSe/GO composite. MDPI 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/38322/1/38322.pdf Lee, Han Kee and Talib, Zainal Abidin and Mamat @ Mat Nazir, Md Shuhazlly and Wang, Enze and Lim, Hong Ngee and Mahdi, Mohd Adzir and Ng, Eng Khoon and Mohd Yusoff, Norita and Al-Jumaili, Batool Eneaze and Liew, Josephine Ying Chyi (2019) Effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method. Materials, 12 (14). art. no. 2295. pp. 1-10. ISSN 1996-1944 https://www.mdpi.com/1996-1944/12/14/2295 10.3390/ma12142295 |
| spellingShingle | Lee, Han Kee Talib, Zainal Abidin Mamat @ Mat Nazir, Md Shuhazlly Wang, Enze Lim, Hong Ngee Mahdi, Mohd Adzir Ng, Eng Khoon Mohd Yusoff, Norita Al-Jumaili, Batool Eneaze Liew, Josephine Ying Chyi Effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method |
| title | Effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method |
| title_full | Effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method |
| title_fullStr | Effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method |
| title_full_unstemmed | Effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method |
| title_short | Effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method |
| title_sort | effect of sodium hydroxide concentration in synthesizing zinc selenide/graphene oxide composite via microwave-assisted hydrothermal method |
| url | http://psasir.upm.edu.my/id/eprint/38322/ http://psasir.upm.edu.my/id/eprint/38322/ http://psasir.upm.edu.my/id/eprint/38322/ http://psasir.upm.edu.my/id/eprint/38322/1/38322.pdf |