Utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (II) ions
A newly developed CdS/rGO/CC electrode was prepared based on a flexible carbon cloth (CC) substrate with cadmium sulfide (CdS) nanoparticles and reduced graphene oxide (rGO). The CdS was synthesized using an aerosol-assisted chemical vapor deposition (AACVD) method, and the graphene oxide was therma...
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my.upm.eprints.532182017-10-24T09:06:44Z http://psasir.upm.edu.my/id/eprint/53218/ Utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (II) ions Foo, C. Y. Lim, H. N. Pandikumar, Alagarsamy Huang, N. M. Ng, Yun Hau A newly developed CdS/rGO/CC electrode was prepared based on a flexible carbon cloth (CC) substrate with cadmium sulfide (CdS) nanoparticles and reduced graphene oxide (rGO). The CdS was synthesized using an aerosol-assisted chemical vapor deposition (AACVD) method, and the graphene oxide was thermally reduced on the modified electrode surface. The existence of rGO in the CdS-modified electrode increased the photocurrent intensity of the CdS/rGO/CC-modified electrode by three orders of magnitude, compared to that of the CdS/ITO electrode and two orders of magnitude higher than the CdS/CC electrode. A new visible-light-prompt photoelectrochemical sensor was developed based on the competitive binding reaction of Cu2+ and CdS on the electrode surface. The results showed that the effect of the Cu2+ on the photocurrent response was concentration-dependent over the linear ranges of 0.1–1.0 μM and 1.0–40.0 μM with a detection limit of 0.05 μM. The results of a selectivity test showed that this modified electrode has a high response toward Cu2+ compared to other heavy metal ions. The proposed CdS/rGO/CC electrode provided a significantly high potential current compared to other reported values, and could be a practical tool for the fast, sensitive, and selective determination of Cu2+. Elsevier 2016-03 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/53218/1/Utilization%20of%20reduced%20graphene%20oxide%20%20cadmium%20sulfide%20-%20modified%20carbon%20cloth%20for%20visible%20-%20light%20-%20prompt%20photoelectrochemical%20sensor%20for%20copper%20%28II%29%20ions.pdf Foo, C. Y. and Lim, H. N. and Pandikumar, Alagarsamy and Huang, N. M. and Ng, Yun Hau (2016) Utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (II) ions. Journal of Hazardous Materials, 304 (11). pp. 400-408. ISSN 0304-3894; ESSN: 1873-3336 10.1016/j.jhazmat.2015.11.004 |
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A newly developed CdS/rGO/CC electrode was prepared based on a flexible carbon cloth (CC) substrate with cadmium sulfide (CdS) nanoparticles and reduced graphene oxide (rGO). The CdS was synthesized using an aerosol-assisted chemical vapor deposition (AACVD) method, and the graphene oxide was thermally reduced on the modified electrode surface. The existence of rGO in the CdS-modified electrode increased the photocurrent intensity of the CdS/rGO/CC-modified electrode by three orders of magnitude, compared to that of the CdS/ITO electrode and two orders of magnitude higher than the CdS/CC electrode. A new visible-light-prompt photoelectrochemical sensor was developed based on the competitive binding reaction of Cu2+ and CdS on the electrode surface. The results showed that the effect of the Cu2+ on the photocurrent response was concentration-dependent over the linear ranges of 0.1–1.0 μM and 1.0–40.0 μM with a detection limit of 0.05 μM. The results of a selectivity test showed that this modified electrode has a high response toward Cu2+ compared to other heavy metal ions. The proposed CdS/rGO/CC electrode provided a significantly high potential current compared to other reported values, and could be a practical tool for the fast, sensitive, and selective determination of Cu2+.
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| format |
Article |
| author |
Foo, C. Y. Lim, H. N. Pandikumar, Alagarsamy Huang, N. M. Ng, Yun Hau |
| spellingShingle |
Foo, C. Y. Lim, H. N. Pandikumar, Alagarsamy Huang, N. M. Ng, Yun Hau Utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (II) ions |
| author_facet |
Foo, C. Y. Lim, H. N. Pandikumar, Alagarsamy Huang, N. M. Ng, Yun Hau |
| author_sort |
Foo, C. Y. |
| title |
Utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (II) ions |
| title_short |
Utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (II) ions |
| title_full |
Utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (II) ions |
| title_fullStr |
Utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (II) ions |
| title_full_unstemmed |
Utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (II) ions |
| title_sort |
utilization of reduced graphene oxide / cadmium sulfide - modified carbon cloth for visible - light - prompt photoelectrochemical sensor for copper (ii) ions |
| publisher |
Elsevier |
| publishDate |
2016 |
| url |
http://psasir.upm.edu.my/id/eprint/53218/1/Utilization%20of%20reduced%20graphene%20oxide%20%20cadmium%20sulfide%20-%20modified%20carbon%20cloth%20for%20visible%20-%20light%20-%20prompt%20photoelectrochemical%20sensor%20for%20copper%20%28II%29%20ions.pdf http://psasir.upm.edu.my/id/eprint/53218/ |
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13.211869 |