Silver Nanoparticles Capped with <i>p</i>-Hydroxybenzoic Acid as a Colorimetric Sensor for the Determination of Paraquat
Highly stable silver nanoparticles capped with p-hydroxybenzoic acid were synthesized by reducing silver ion with p-hydroxybenzoic acid and used for the detection of paraquat. The synthesized silver nanoparticles, which are yellow, exhibited an absorption peak at 420 nm when measured with a UV-visib...
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Department of Chemistry, Universitas Gadjah Mada
2020
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oai:doaj.org-article:cac7a384518a4376b8a4ea8e911acffb2021-12-02T12:11:49ZSilver Nanoparticles Capped with <i>p</i>-Hydroxybenzoic Acid as a Colorimetric Sensor for the Determination of Paraquat1411-94202460-157810.22146/ijc.48806https://doaj.org/article/cac7a384518a4376b8a4ea8e911acffb2020-05-01T00:00:00Zhttps://jurnal.ugm.ac.id/ijc/article/view/48806https://doaj.org/toc/1411-9420https://doaj.org/toc/2460-1578Highly stable silver nanoparticles capped with p-hydroxybenzoic acid were synthesized by reducing silver ion with p-hydroxybenzoic acid and used for the detection of paraquat. The synthesized silver nanoparticles, which are yellow, exhibited an absorption peak at 420 nm when measured with a UV-visible spectrophotometer due to the surface plasmon resonance. In the presence of paraquat, the color of silver nanoparticles changed from yellow to purple accompanied by the appearance of a new peak at 580 nm in addition to the peak at 420 nm. In order to obtain optimum experimental conditions, temperature, and time of reaction were optimized, and the ratio of absorbance obtained at 580 nm and 420 nm (A580/A420) were monitored. The A580/A420 is proportional to the concentration of paraquat. Under the most favorable condition, the calibration curve showed a high level of linearity ranging from 6.0 × 10–4 to 1.0 × 10–3 M, and the detection limit was found to be 8.30 × 10–6 M. Silver nanoparticles capped with p-hydroxybenzoic acid was found to be useful for the colorimetric determination of paraquat in the aqueous medium.Gusrizal GusrizalSri Juari SantosaEko Sri KunartiBambang RusdiarsoDepartment of Chemistry, Universitas Gadjah Madaarticlenanoparticlesparaquatp-hydroxybenzoic acidsensorsilverChemistryQD1-999ENIndonesian Journal of Chemistry, Vol 20, Iss 3, Pp 688-696 (2020) |
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nanoparticles paraquat p-hydroxybenzoic acid sensor silver Chemistry QD1-999 |
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nanoparticles paraquat p-hydroxybenzoic acid sensor silver Chemistry QD1-999 Gusrizal Gusrizal Sri Juari Santosa Eko Sri Kunarti Bambang Rusdiarso Silver Nanoparticles Capped with <i>p</i>-Hydroxybenzoic Acid as a Colorimetric Sensor for the Determination of Paraquat |
| description |
Highly stable silver nanoparticles capped with p-hydroxybenzoic acid were synthesized by reducing silver ion with p-hydroxybenzoic acid and used for the detection of paraquat. The synthesized silver nanoparticles, which are yellow, exhibited an absorption peak at 420 nm when measured with a UV-visible spectrophotometer due to the surface plasmon resonance. In the presence of paraquat, the color of silver nanoparticles changed from yellow to purple accompanied by the appearance of a new peak at 580 nm in addition to the peak at 420 nm. In order to obtain optimum experimental conditions, temperature, and time of reaction were optimized, and the ratio of absorbance obtained at 580 nm and 420 nm (A580/A420) were monitored. The A580/A420 is proportional to the concentration of paraquat. Under the most favorable condition, the calibration curve showed a high level of linearity ranging from 6.0 × 10–4 to 1.0 × 10–3 M, and the detection limit was found to be 8.30 × 10–6 M. Silver nanoparticles capped with p-hydroxybenzoic acid was found to be useful for the colorimetric determination of paraquat in the aqueous medium. |
| format |
article |
| author |
Gusrizal Gusrizal Sri Juari Santosa Eko Sri Kunarti Bambang Rusdiarso |
| author_facet |
Gusrizal Gusrizal Sri Juari Santosa Eko Sri Kunarti Bambang Rusdiarso |
| author_sort |
Gusrizal Gusrizal |
| title |
Silver Nanoparticles Capped with <i>p</i>-Hydroxybenzoic Acid as a Colorimetric Sensor for the Determination of Paraquat |
| title_short |
Silver Nanoparticles Capped with <i>p</i>-Hydroxybenzoic Acid as a Colorimetric Sensor for the Determination of Paraquat |
| title_full |
Silver Nanoparticles Capped with <i>p</i>-Hydroxybenzoic Acid as a Colorimetric Sensor for the Determination of Paraquat |
| title_fullStr |
Silver Nanoparticles Capped with <i>p</i>-Hydroxybenzoic Acid as a Colorimetric Sensor for the Determination of Paraquat |
| title_full_unstemmed |
Silver Nanoparticles Capped with <i>p</i>-Hydroxybenzoic Acid as a Colorimetric Sensor for the Determination of Paraquat |
| title_sort |
silver nanoparticles capped with <i>p</i>-hydroxybenzoic acid as a colorimetric sensor for the determination of paraquat |
| publisher |
Department of Chemistry, Universitas Gadjah Mada |
| publishDate |
2020 |
| url |
https://doaj.org/article/cac7a384518a4376b8a4ea8e911acffb |
| work_keys_str_mv |
AT gusrizalgusrizal silvernanoparticlescappedwithipihydroxybenzoicacidasacolorimetricsensorforthedeterminationofparaquat AT srijuarisantosa silvernanoparticlescappedwithipihydroxybenzoicacidasacolorimetricsensorforthedeterminationofparaquat AT ekosrikunarti silvernanoparticlescappedwithipihydroxybenzoicacidasacolorimetricsensorforthedeterminationofparaquat AT bambangrusdiarso silvernanoparticlescappedwithipihydroxybenzoicacidasacolorimetricsensorforthedeterminationofparaquat |
| _version_ |
1718394600264040448 |