Screen-printed electrodes made of a bismuth nanoparticle porous carbon nanocomposite applied to the determination of heavy metal ions

Niu, Pengfei; Fernández‐Sánchez, César; Gich, Martí; Navarro-Hérnandez, Carla; Fanjul‐Bolado, Pablo; Roig, Anna

doi:10.1007/s00604-015-1684-4

Cited by 89 publications

(34 citation statements)

References 23 publications

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“…Screen‐printing is a second approach to produce electrochemical devices with gel carbon materials. In practice, the ball‐milled materials can be mixed with different additives and polymer‐like components to produce inks that can be screen‐printed for the mass fabrication of miniaturized electrochemical sensors (Figure , route A) . Here, the unavoidable effect on the sensor analytical performance of the ink composition should be carefully considered.…”

Section: Electroanalytical Devices Made With Resorcinol‐formaldehyde mentioning

confidence: 99%

“…2) The starting liquid phase allows for the production of materials with a diversity of shapes, including monoliths, nanoparticles, thin films, powders, among others. As a result, sol‐gel materials can be screen‐printed or lithographically processed into thick and thin film electrodes, respectively. 3) It is an effective and highly versatile approach to produce composite materials.…”

Section: Introductionmentioning

confidence: 99%

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Metal Nanoparticle Carbon Gel Composites in Environmental Water Sensing Applications

Niu

Gich

Roig

et al. 2018

The Chemical Record

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The synthesis of organic-inorganic nanocomposites that can interact with different environmental pollutants and can be mass-produced are very promising materials for the fabrication of chemical sensor devices. Among them, metal (or metal oxide) nanoparticles doped conductive porous carbon composites can be readily applied to the production of electrochemical sensors and show enhanced sensitivity for the measurement of water pollutants, thanks to the abundant accessible and functional sites provided by the interconnected porosity and the metallic nanoparticles, respectively. In this personal account, an overview of several synthesis routes of porous carbon composites containing metallic nanoparticles is given, paying special attention to those based on sol-gel techniques. These are very powerful to synthesize hybrid porous materials that can be easily processed into powders and thin films, so that they can be implemented in electrode fabrication processes based on screen-printing and lithography techniques, respectively. We emphasize the sol-gel routes developed in our group for the synthesis of bismuth or gold nanoparticle doped porous carbon composites applied to fabricate electrochemical sensors that can be scaled down to produce miniaturized on-chip sensing devices for the sensitive detection of heavy metal pollutants in water. The trend towards the miniaturization of electrochemical sensors to be readily employed as analytical tools in environmental monitoring follow the market requirements of rapid and accurate on-site analysis, small sample consumption and waste production, as well as potential for continuous or semi-continuous in-situ determination of a wide variety of target analytes.

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Section: Electroanalytical Devices Made With Resorcinol‐formaldehyde mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metal Nanoparticle Carbon Gel Composites in Environmental Water Sensing Applications

Niu

Gich

Roig

et al. 2018

The Chemical Record

Self Cite

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“…The development of simple analytical methods that allow the rapid determination of nitrite and does not require sample pre‐treatment steps besides being interference‐free is an important topic due to the already mentioned risks of nitrite for the human health . Currently there is an increasing interest regarding the development of new sensors and biosensors for application in environmental analysis aiming the monitoring of several target analytes , , . Electrochemical techniques in conjunction with screen‐printed sensors may be an interesting alternative for the determination of environmental pollutants since it has as advantages the low cost, ease of operation, satisfactory sensitivity and selectivity and provides rapid analytical response .…”

Section: Introductionmentioning

confidence: 99%

“…Screen‐printing technology is employed by many research groups for the fabrication of electrochemical sensors due to their satisfactory sensitivities, possibility of miniaturization, portability and effective cost of the devices , . These sensors aim as main characteristics the ease of fabrication over low‐cost and good reproducibility , , .…”

Section: Introductionmentioning

confidence: 99%

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Simple and Inexpensive Electrochemical Platform Based on Novel Homemade Carbon Ink and its Analytical Application for Determination of Nitrite

2017

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In this work we present the development of a simple handmade approach for the easy fabrication of three‐electrode electrochemical devices based on newly in‐house developed carbon ink composed of graphite powder and polystyrene. Different proportions of graphite/polystyrene were investigated for the optimization of the ink. The counter and reference electrodes were produced using commercial carbon ink and silver glue. Scanning electron microscopy, electrochemical impedance spectroscopy and cyclic voltammetry were used to investigate the morphology and the electrochemical properties of the sensor. The results showed that the electroactive area of the optimized working electrode was ca. 2.35 times larger than its geometric area. The RSD values obtained for repeatability and reproducibility were 0.20% and 2.78%, respectively, which suggest no significant variation on the electrodes fabricated. The analytical feasibility of the electrode was tested through its application for the determination of nitrite in drinking water. The quantifications were successfully performed at levels below the maximum contaminant level established for nitrite. A limit of detection of 1.42 × 10−6 mol L−1 and recoveries of ca. 103 % were achieved. The results were validated using ion‐chromatography technique with good agreement. The performance of the unmodified sensor proposed here on nitrite determination was better than some recently reported modified electrodes obtained through complex procedures.

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Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

Hou

Zeinu

Gao

et al. 2018

Energy & Environ Materials

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The increase in release of toxic heavy metals into natural water attracts much attention due to its devastating effect on ecology and human health. The design and implementation of green electrode materials is pivotal for improving the electrochemical performance of in situ heavy metal monitoring. This work reviews various novel electrode materials and hybrid materials that improve electrochemical detection. Modified green and novel electrode materials offer better performance due to their improved deposition with wide linear and enhanced response under optimized sensing parameters. In particular, recent works related to gold, carbon materials, bismuth, and metal oxide‐based electrodes are reviewed. The environmentally friendly (“green”) characteristics, as well as their versatility and flexibility, are especially emphasized. In addition, synthesis methods and novel designs of electrode integration are highlighted. Most of the substantial achievements as well as breakthroughs in recent years are surveyed, and the challenges and prospective in this field are also identified.

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Screen-printed electrodes made of a bismuth nanoparticle porous carbon nanocomposite applied to the determination of heavy metal ions

Cited by 89 publications

References 23 publications

Metal Nanoparticle Carbon Gel Composites in Environmental Water Sensing Applications

Metal Nanoparticle Carbon Gel Composites in Environmental Water Sensing Applications

Simple and Inexpensive Electrochemical Platform Based on Novel Homemade Carbon Ink and its Analytical Application for Determination of Nitrite

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

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