The use of activated biochar for development of a sensitive electrochemical sensor for determination of methyl parathion

Oliveira, Paulo Roberto de; Kalinke, Cristiane; Gogola, Jeferson L.; Mangrich, Antônio S.; Marcolino‐Júnior, Luiz H.; Bergamini, Márcio F.

doi:10.1016/j.jelechem.2017.06.020

Cited by 98 publications

(31 citation statements)

References 63 publications

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“…Similarly, Jagdale et al [342] used spent coffee grounds to realize a relative humidity sensor with a starting response at 20% humidity. Further studies showed the use of biochar-based materials for the detection of ions (i.e., lead [343], copper [344], and zinc [345]) at concentrations of nmol/L and for organic materials in mmol/L concentrations [346,347]. Several authors have described the use of biochar-derived materials for biosensing.…”

Section: Other Uses Of Biocharmentioning

confidence: 99%

A Review of Non-Soil Biochar Applications

et al. 2020

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Biochar is the solid residue that is recovered after the thermal cracking of biomasses in an oxygen-free atmosphere. Biochar has been used for many years as a soil amendment and in general soil applications. Nonetheless, biochar is far more than a mere soil amendment. In this review, we report all the non-soil applications of biochar including environmental remediation, energy storage, composites, and catalyst production. We provide a general overview of the recent uses of biochar in material science, thus presenting this cheap and waste-derived material as a high value-added and carbonaceous source.

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Section: Other Uses Of Biocharmentioning

confidence: 99%

A Review of Non-Soil Biochar Applications

et al. 2020

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“…In less number, BC or nanoparticle decorated BC has been proposed in electroanalysis as a modifier for carbon paste electrodes for determination of traces of heavy metals lead , cadmium , copper , zinc and nickel by anodic stripping voltammetry. Moreover, the adsorptive ability of BC has been explored for the spontaneous pre‐concentration on the electrode surface and single determination of organic compounds such as paraquat and methil parathion by adsorptive stripping voltammetry.…”

Section: Figurementioning

confidence: 99%

Biochar: A Low‐cost Electrode Modifier for Electrocatalytic, Sensitive and Selective Detection of Similar Organic Compounds

et al. 2018

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This work proposes for the first time the use of biochar (BC) as a cost‐effective electrode modifier for simultaneous electroanalysis of similar organic compounds. BCs were prepared from Babassu petiole pyrolysis at five temperatures (500–900 °C) and characterized by FTIR, SEM, TG‐DTA and BET., which presented amorphous shapes with relative high surface areas (280–396 m2 g−1) and polar surface groups (T<700 °C). As a proof of concept, BC‐modified glassy carbon electrodes (BC/GCE) were studied using ferrocyanide probe and evaluated towards the simultaneous detection of catechol and hydroquinone (isomers), levofloxacin and norfloxacin (analogous structure), and tert‐butylhydroquinone and butylated hydroxyanisole. In all cases, BC improved the peak‐to‐peak separation, sensitivity and electrocatalytic activity, which highlights BC as a promising modifier to be used in simultaneous determinations of organic compounds with similar peak potentials.

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“…However, some of the metal oxides (TiO 2 and ZrO 2 in particular) readily lose their surface area when used as a high surface area catalyst [26], while the quoted carbon‐based nanomaterials are still too expensive and their production involves complicated fabrication protocols. In this context biochar [27] and activated carbon offer some advantageous properties. Activated carbon in particular can be easily prepared using low cost raw materials such as agricultural wastes; it is commercially available; its large surface area, porous structure, and great adsorption capacity make it a high performant sorbent for solid‐phase extraction.…”

Section: Introductionmentioning

confidence: 99%

Stripping Voltammetric Determination of Methyl Parathion at Activated Carbon Nanopowder Modified Electrode

et al. 2020

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An activated carbon nanopowder modified glassy carbon electrode (AC‐GCE) was constructed for the sensitive determination of methyl parathion by adsorptive differential pulse anodic stripping voltammetry. The simple and rapid modification procedure included only drop‐coating the electrode surface with a laponite stabilized activated carbon nanopowder suspension and drying. The modifier high adsorption ability, combined with its large electroactive surface area allowed a 30‐fold signal increase to be achieved, compared to bare GCE. Under optimized experimental conditions (activated carbon to laponite ratio, pH and accumulation time), the AC‐GCE exhibited a linear response to methyl parathion in two concentration ranges: from 0.01 μmol L−1 to 1 μmol L−1 and from 1 μmol L−1 to 6 μmol L−1. The LOD of 2.5 nmol L−1 (S/N=3) achieved fitted with regulatory norms. It was demonstrated that the as‐prepared AC‐GCE is suitable for routine real samples analysis.

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The use of activated biochar for development of a sensitive electrochemical sensor for determination of methyl parathion

Cited by 98 publications

References 63 publications

A Review of Non-Soil Biochar Applications

A Review of Non-Soil Biochar Applications

Biochar: A Low‐cost Electrode Modifier for Electrocatalytic, Sensitive and Selective Detection of Similar Organic Compounds

Stripping Voltammetric Determination of Methyl Parathion at Activated Carbon Nanopowder Modified Electrode

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