Tin Nanoparticles Modified Electrode For Simultaneous Detection Of Cadmium (Cd) And Lead (Pb) Ions
Heavy metal pollution in the environment has significantly endangered human health by accumulation of heavy metal ions within the food chain. Therefore, heavy metal detection is important for environmental monitoring. In this research, the tin nanoparticles (SnNPs) were synthesized using chemical re...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2022
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| Online Access: | http://eprints.usm.my/56592/ http://eprints.usm.my/56592/1/Tin%20Nanoparticles%20Modified%20Electrode%20For%20Simultaneous%20Detection%20Of%20Cadmium%20%28Cd%29%20And%20Lead%20%28Pb%29%20Ions_Loo%20Ji%20Yu.pdf |
| _version_ | 1848883394334687232 |
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| author | Loo, Ji Yu |
| author_facet | Loo, Ji Yu |
| author_sort | Loo, Ji Yu |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Heavy metal pollution in the environment has significantly endangered human health by accumulation of heavy metal ions within the food chain. Therefore, heavy metal detection is important for environmental monitoring. In this research, the tin nanoparticles (SnNPs) were synthesized using chemical reduction method and used for modification of Indium Tin Oxide (ITO) electrode for detection of heavy metal ions. The SnNPs were synthesized using two approaches, with and without the addition of polyvinylpyrrolidone (PVP), namely SnNPs WPVP, and SnNPs WOPVP, respectively. The as-synthesized SnNPs were drop casted on the ITO electrode with varying concentration, and with and without Nafion. The modified electrode was
subjected to cyclic voltammetry (CV) and square wave anodic stripping voltammetry (SWASV). Nafion/SnNPs WPVP/ITO modified electrode showed good performance in simultaneous detection of Cd2+ and Pb2+ ions with linear range of 10-100 ppb, the
limit of detections (LOD) for simultaneous detection of Cd2+ and Pb2+ ions were 1.44 ppb and 1.97 ppb, respectively. The sensitivity of the Nafion/SnNPs WPVP/ITO modified electrode was 0.25 μA/ppb and 0.20 μA/ppb towards Cd2+ and Pb2+ ions,
respectively. The modified electrode showed high selectivity towards detection of Cd2+ and Pb2+ ions in interference study. The feasibility of the modified electrode was studied in real seawater sample for detection of Cd2+ and Pb2+ ions and successfully detected the presence of Pb2+ ions in the seawater sample. Thus, the results revealed that the SnNPs/ITO electrode can be used as heavy metal ions sensor. |
| first_indexed | 2025-11-15T18:50:07Z |
| format | Monograph |
| id | usm-56592 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:50:07Z |
| publishDate | 2022 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-565922023-01-27T09:43:58Z http://eprints.usm.my/56592/ Tin Nanoparticles Modified Electrode For Simultaneous Detection Of Cadmium (Cd) And Lead (Pb) Ions Loo, Ji Yu T Technology TN Mining Engineering. Metallurgy Heavy metal pollution in the environment has significantly endangered human health by accumulation of heavy metal ions within the food chain. Therefore, heavy metal detection is important for environmental monitoring. In this research, the tin nanoparticles (SnNPs) were synthesized using chemical reduction method and used for modification of Indium Tin Oxide (ITO) electrode for detection of heavy metal ions. The SnNPs were synthesized using two approaches, with and without the addition of polyvinylpyrrolidone (PVP), namely SnNPs WPVP, and SnNPs WOPVP, respectively. The as-synthesized SnNPs were drop casted on the ITO electrode with varying concentration, and with and without Nafion. The modified electrode was subjected to cyclic voltammetry (CV) and square wave anodic stripping voltammetry (SWASV). Nafion/SnNPs WPVP/ITO modified electrode showed good performance in simultaneous detection of Cd2+ and Pb2+ ions with linear range of 10-100 ppb, the limit of detections (LOD) for simultaneous detection of Cd2+ and Pb2+ ions were 1.44 ppb and 1.97 ppb, respectively. The sensitivity of the Nafion/SnNPs WPVP/ITO modified electrode was 0.25 μA/ppb and 0.20 μA/ppb towards Cd2+ and Pb2+ ions, respectively. The modified electrode showed high selectivity towards detection of Cd2+ and Pb2+ ions in interference study. The feasibility of the modified electrode was studied in real seawater sample for detection of Cd2+ and Pb2+ ions and successfully detected the presence of Pb2+ ions in the seawater sample. Thus, the results revealed that the SnNPs/ITO electrode can be used as heavy metal ions sensor. Universiti Sains Malaysia 2022-08-12 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/56592/1/Tin%20Nanoparticles%20Modified%20Electrode%20For%20Simultaneous%20Detection%20Of%20Cadmium%20%28Cd%29%20And%20Lead%20%28Pb%29%20Ions_Loo%20Ji%20Yu.pdf Loo, Ji Yu (2022) Tin Nanoparticles Modified Electrode For Simultaneous Detection Of Cadmium (Cd) And Lead (Pb) Ions. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Bahan dan Sumber Mineral. (Submitted) |
| spellingShingle | T Technology TN Mining Engineering. Metallurgy Loo, Ji Yu Tin Nanoparticles Modified Electrode For Simultaneous Detection Of Cadmium (Cd) And Lead (Pb) Ions |
| title | Tin Nanoparticles Modified Electrode For Simultaneous Detection Of Cadmium (Cd) And Lead (Pb) Ions |
| title_full | Tin Nanoparticles Modified Electrode For Simultaneous Detection Of Cadmium (Cd) And Lead (Pb) Ions |
| title_fullStr | Tin Nanoparticles Modified Electrode For Simultaneous Detection Of Cadmium (Cd) And Lead (Pb) Ions |
| title_full_unstemmed | Tin Nanoparticles Modified Electrode For Simultaneous Detection Of Cadmium (Cd) And Lead (Pb) Ions |
| title_short | Tin Nanoparticles Modified Electrode For Simultaneous Detection Of Cadmium (Cd) And Lead (Pb) Ions |
| title_sort | tin nanoparticles modified electrode for simultaneous detection of cadmium (cd) and lead (pb) ions |
| topic | T Technology TN Mining Engineering. Metallurgy |
| url | http://eprints.usm.my/56592/ http://eprints.usm.my/56592/1/Tin%20Nanoparticles%20Modified%20Electrode%20For%20Simultaneous%20Detection%20Of%20Cadmium%20%28Cd%29%20And%20Lead%20%28Pb%29%20Ions_Loo%20Ji%20Yu.pdf |