Visible-light-prompt photoelectrochemical sensor of copper(II) ions based on CdS nanorods modified with Au nanoparticles and graphene quantum dots
Excessive consumption of Cu2+ ions can cause damage to liver and kidney. Thus, significant efforts have been devoted to detecting Cu2+ ions in the environment and biological systems. An interconnected triplet structure of CdS/Au/GQDs was designed as the photo-to-electron conversion medium for real-t...
| Main Authors: | , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/65472/ http://psasir.upm.edu.my/id/eprint/65472/1/49.pdf |
| _version_ | 1848855294046633984 |
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| author | Ibrahim, Izwaharyanie Lim, Hong Ngee |
| author_facet | Ibrahim, Izwaharyanie Lim, Hong Ngee |
| author_sort | Ibrahim, Izwaharyanie |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Excessive consumption of Cu2+ ions can cause damage to liver and kidney. Thus, significant efforts have been devoted to detecting Cu2+ ions in the environment and biological systems. An interconnected triplet structure of CdS/Au/GQDs was designed as the photo-to-electron conversion medium for real-time and selective visible-light-prompt photoelectrochemical (PEC) sensor of Cu2+ ions in real-water samples. The synergistic interaction of CdS/Au/GQDs enabled smooth transportation of charge carrier to the charge collector, providing a channel to inhibit the charge recombination reaction. Moreover, the presence of Cu2+ ion on the photoelectrode activated the quenching of the charge transfer efficiency, thus promoting sensitive PEC determination of Cu2+ ions level. The real-time monitoring of Cu2+ ions in mineral water, tap water and reverse osmosis water were performed with satisfactory results, confirming the capability of the as-fabricated photoelectrode as a practical detector for trace element of Cu2+ ions. |
| first_indexed | 2025-11-15T11:23:28Z |
| format | Conference or Workshop Item |
| id | upm-65472 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:23:28Z |
| publishDate | 2018 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-654722018-10-08T02:43:24Z http://psasir.upm.edu.my/id/eprint/65472/ Visible-light-prompt photoelectrochemical sensor of copper(II) ions based on CdS nanorods modified with Au nanoparticles and graphene quantum dots Ibrahim, Izwaharyanie Lim, Hong Ngee Excessive consumption of Cu2+ ions can cause damage to liver and kidney. Thus, significant efforts have been devoted to detecting Cu2+ ions in the environment and biological systems. An interconnected triplet structure of CdS/Au/GQDs was designed as the photo-to-electron conversion medium for real-time and selective visible-light-prompt photoelectrochemical (PEC) sensor of Cu2+ ions in real-water samples. The synergistic interaction of CdS/Au/GQDs enabled smooth transportation of charge carrier to the charge collector, providing a channel to inhibit the charge recombination reaction. Moreover, the presence of Cu2+ ion on the photoelectrode activated the quenching of the charge transfer efficiency, thus promoting sensitive PEC determination of Cu2+ ions level. The real-time monitoring of Cu2+ ions in mineral water, tap water and reverse osmosis water were performed with satisfactory results, confirming the capability of the as-fabricated photoelectrode as a practical detector for trace element of Cu2+ ions. 2018 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/65472/1/49.pdf Ibrahim, Izwaharyanie and Lim, Hong Ngee (2018) Visible-light-prompt photoelectrochemical sensor of copper(II) ions based on CdS nanorods modified with Au nanoparticles and graphene quantum dots. In: 2nd International Symposium on Advanced Materials and Nanotechnology (i-SAMN 2018), 15-16 Aug. 2018, The Everly Putrajaya, Malaysia. (pp. 90-91). http://www.samn2018.upm.edu.my/doc/49.pdf |
| spellingShingle | Ibrahim, Izwaharyanie Lim, Hong Ngee Visible-light-prompt photoelectrochemical sensor of copper(II) ions based on CdS nanorods modified with Au nanoparticles and graphene quantum dots |
| title | Visible-light-prompt photoelectrochemical sensor of copper(II) ions based on CdS nanorods modified with Au nanoparticles and graphene quantum dots |
| title_full | Visible-light-prompt photoelectrochemical sensor of copper(II) ions based on CdS nanorods modified with Au nanoparticles and graphene quantum dots |
| title_fullStr | Visible-light-prompt photoelectrochemical sensor of copper(II) ions based on CdS nanorods modified with Au nanoparticles and graphene quantum dots |
| title_full_unstemmed | Visible-light-prompt photoelectrochemical sensor of copper(II) ions based on CdS nanorods modified with Au nanoparticles and graphene quantum dots |
| title_short | Visible-light-prompt photoelectrochemical sensor of copper(II) ions based on CdS nanorods modified with Au nanoparticles and graphene quantum dots |
| title_sort | visible-light-prompt photoelectrochemical sensor of copper(ii) ions based on cds nanorods modified with au nanoparticles and graphene quantum dots |
| url | http://psasir.upm.edu.my/id/eprint/65472/ http://psasir.upm.edu.my/id/eprint/65472/ http://psasir.upm.edu.my/id/eprint/65472/1/49.pdf |