An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO<sub>3</sub> as a Sensitive Membrane
Ion-Selective Electrode (ISE) is an emerging technology for in situ monitoring of the chemical concentrations of an aqueous environment. In this work, we reported a novel all-solid-state silicate ISE, using an Ag/Pb/PbSiO<sub>3</sub> electrode. This electrode responded to aqueous SiO<...
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| Format: | Article |
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MDPI AG
2019-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/3/525 |
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| author | Rongrong Wu Xue-Gang Chen Chunhui Tao Yuanfeng Huang Ying Ye Qiujin Wang Yifan Zhou Quan Jin Wei Cai |
| author_facet | Rongrong Wu Xue-Gang Chen Chunhui Tao Yuanfeng Huang Ying Ye Qiujin Wang Yifan Zhou Quan Jin Wei Cai |
| author_sort | Rongrong Wu |
| collection | DOAJ |
| description | Ion-Selective Electrode (ISE) is an emerging technology for in situ monitoring of the chemical concentrations of an aqueous environment. In this work, we reported a novel all-solid-state silicate ISE, using an Ag/Pb/PbSiO<sub>3</sub> electrode. This electrode responded to aqueous SiO<sub>3</sub><sup>2−</sup> with a reasonable slope of −31.34 mV/decade and a good reproductivity. The linear range covered from 10<sup>−5</sup> M to 10<sup>−1</sup> M, for the Na<sub>2</sub>SiO<sub>3</sub> solutions and the response time was generally less than 5 s. Its potentiometric response to pH and silicate indicated that the prepared electrode was sensitive to silicate, rather than pH. Compared to the traditional liquid ISE, our all-solid-state silicate electrode was resistant to high pressure and could be used in situ, in deep water. In addition, the miniaturized electrodes (diameter of 0.4 mm and a length of 2⁻3 cm) could be easily integrated into a multi-modal sensor, which could simultaneously determine multiple parameters. Our prepared silicate ISE could potentially be used to determine the presence of silicate in a low-chloride aqueous environment, where the ISE exhibited better selectivity for silicate, over interfering ions such as, SO<sub>4</sub><sup>2</sup><sup>−</sup>, NO<sub>3</sub><sup>−</sup>, CH<sub>3</sub>COO<sup>−</sup>, CO<sub>3</sub><sup>2</sup><sup>−</sup>, and PO<sub>4</sub><sup>3</sup><sup>−</sup>. |
| first_indexed | 2024-04-11T22:22:49Z |
| format | Article |
| id | doaj.art-569425165d324ff78475657b7023608f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:22:49Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-569425165d324ff78475657b7023608f2022-12-22T04:00:02ZengMDPI AGSensors1424-82202019-01-0119352510.3390/s19030525s19030525An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO<sub>3</sub> as a Sensitive MembraneRongrong Wu0Xue-Gang Chen1Chunhui Tao2Yuanfeng Huang3Ying Ye4Qiujin Wang5Yifan Zhou6Quan Jin7Wei Cai8Ocean College, Zhejiang University, Zhoushan 316021, ChinaOcean College, Zhejiang University, Zhoushan 316021, ChinaOcean College, Zhejiang University, Zhoushan 316021, ChinaShandong SEI Science & Technology Co., Ltd., Jinan 250002, ChinaOcean College, Zhejiang University, Zhoushan 316021, ChinaOcean College, Zhejiang University, Zhoushan 316021, ChinaOcean College, Zhejiang University, Zhoushan 316021, ChinaOcean College, Zhejiang University, Zhoushan 316021, ChinaKey Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, ChinaIon-Selective Electrode (ISE) is an emerging technology for in situ monitoring of the chemical concentrations of an aqueous environment. In this work, we reported a novel all-solid-state silicate ISE, using an Ag/Pb/PbSiO<sub>3</sub> electrode. This electrode responded to aqueous SiO<sub>3</sub><sup>2−</sup> with a reasonable slope of −31.34 mV/decade and a good reproductivity. The linear range covered from 10<sup>−5</sup> M to 10<sup>−1</sup> M, for the Na<sub>2</sub>SiO<sub>3</sub> solutions and the response time was generally less than 5 s. Its potentiometric response to pH and silicate indicated that the prepared electrode was sensitive to silicate, rather than pH. Compared to the traditional liquid ISE, our all-solid-state silicate electrode was resistant to high pressure and could be used in situ, in deep water. In addition, the miniaturized electrodes (diameter of 0.4 mm and a length of 2⁻3 cm) could be easily integrated into a multi-modal sensor, which could simultaneously determine multiple parameters. Our prepared silicate ISE could potentially be used to determine the presence of silicate in a low-chloride aqueous environment, where the ISE exhibited better selectivity for silicate, over interfering ions such as, SO<sub>4</sub><sup>2</sup><sup>−</sup>, NO<sub>3</sub><sup>−</sup>, CH<sub>3</sub>COO<sup>−</sup>, CO<sub>3</sub><sup>2</sup><sup>−</sup>, and PO<sub>4</sub><sup>3</sup><sup>−</sup>.https://www.mdpi.com/1424-8220/19/3/525ion-selective electrodesilicatepotentiometricpH responsesensitivity |
| spellingShingle | Rongrong Wu Xue-Gang Chen Chunhui Tao Yuanfeng Huang Ying Ye Qiujin Wang Yifan Zhou Quan Jin Wei Cai An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO<sub>3</sub> as a Sensitive Membrane Sensors ion-selective electrode silicate potentiometric pH response sensitivity |
| title | An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO<sub>3</sub> as a Sensitive Membrane |
| title_full | An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO<sub>3</sub> as a Sensitive Membrane |
| title_fullStr | An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO<sub>3</sub> as a Sensitive Membrane |
| title_full_unstemmed | An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO<sub>3</sub> as a Sensitive Membrane |
| title_short | An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO<sub>3</sub> as a Sensitive Membrane |
| title_sort | all solid state silicate ion selective electrode using pbsio sub 3 sub as a sensitive membrane |
| topic | ion-selective electrode silicate potentiometric pH response sensitivity |
| url | https://www.mdpi.com/1424-8220/19/3/525 |
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