Sensitive voltammetric determination of cadmium at a carbon nanotubes/Fe3O4/eggshell composites modified carbon paste electrode

Mohammadi, Somayeh; Taher, Mohammad Ali; Beitollahi, Hadi; Naghizadeh, Matin

doi:10.1016/j.enmm.2019.100241

Cited by 14 publications

(16 citation statements)

References 65 publications

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“…Similarly to the references reporting the detection of Pb(II), all references but one is based on functionalized MWCNTs sensors using stripping voltammetry, the other ones using stripping voltammetry with pristine MWCNTs [ 129 ] or stripping potentiometry with functionalized MWCNTs [ 131 ]. All except one paper [ 141 ] are common with the reports on Pb(II) sensors in the previous section. Unfortunately, there is no reference about covalently functionalized CNT for cadmium sensing.…”

Section: Cnt-based Sensors With Different Analytes In Watermentioning

confidence: 99%

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Electrical and Electrochemical Sensors Based on Carbon Nanotubes for the Monitoring of Chemicals in Water—A Review

Cho

Azzouzi

Zucchi

et al. 2021

Sensors

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Carbon nanotubes (CNTs) combine high electrical conductivity with high surface area and chemical stability, which makes them very promising for chemical sensing. While water quality monitoring has particularly strong societal and environmental impacts, a lot of critical sensing needs remain unmet by commercial technologies. In the present review, we show across 20 water monitoring analytes and 90 references that carbon nanotube-based electrochemical sensors, chemistors and field-effect transistors (chemFET) can meet these needs. A set of 126 additional references provide context and supporting information. After introducing water quality monitoring challenges, the general operation and fabrication principles of CNT water quality sensors are summarized. They are sorted by target analytes (pH, micronutrients and metal ions, nitrogen, hardness, dissolved oxygen, disinfectants, sulfur and miscellaneous) and compared in terms of performances (limit of detection, sensitivity and detection range) and functionalization strategies. For each analyte, the references with best performances are discussed. Overall, the most frequently investigated analytes are H+ (pH) and lead (with 18% of references each), then cadmium (14%) and nitrite (11%). Micronutrients and toxic metals cover 40% of all references. Electrochemical sensors (73%) have been more investigated than chemistors (14%) or FETs (12%). Limits of detection in the ppt range have been reached, for instance Cu(II) detection with a liquid-gated chemFET using SWCNT functionalized with peptide-enhanced polyaniline or Pb(II) detection with stripping voltammetry using MWCNT functionalized with ionic liquid-dithizone based bucky-gel. The large majority of reports address functionalized CNTs (82%) instead of pristine or carboxyl-functionalized CNTs. For analytes where comparison is possible, FET-based and electrochemical transduction yield better performances than chemistors (Cu(II), Hg(II), Ca(II), H2O2); non-functionalized CNTs may yield better performances than functionalized ones (Zn(II), pH and chlorine).

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Section: Cnt-based Sensors With Different Analytes In Watermentioning

confidence: 99%

“…Other papers rather focus on more ubiquitous ions usually present in the ppm range in water, such as Cl − , PO 4 3− , SO 4 2− , NO 3 − , Na + , Ca(II), Mg(II), K + or CO 3 2− [ 73 , 141 ]. For these ions, no interference to Pb(II), Cu(II) and Cd(II) detection was found.…”

Section: Cnt-based Sensors With Different Analytes In Watermentioning

confidence: 99%

Electrical and Electrochemical Sensors Based on Carbon Nanotubes for the Monitoring of Chemicals in Water—A Review

Cho

Azzouzi

Zucchi

et al. 2021

Sensors

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“…The simple dispersion of eggshell powder in an aqueous solution of metal ions led to a color change from white to brown, pale green, pale blue, yellow, blue, pale pink, pale yellow, and dark yellow for different metal ions, which are Ag + , V 4+ , Cr 3+ , Cr 6+ , Cu 2+ , Co 2+ , Fe 2+ , and Fe 3+ ions, respectively. Besides that, Mohammadi et al [ 55 ] presented a novel method for differential-pulse anodic stripping voltammetric determination of Cd 2+ ions using a carbon paste electrode modified with a nanosized magnetic nanocomposite of Fe 3 O 4 /eggshell and multi-walled carbon nanotubes. The magnetic nanoparticles exhibit specific properties such as less toxicity, good magnetic properties, large surface area-to-volume ratios, and ease of synthesis, coating, or functionalization, allowing them to be used as functional moieties for roughening the conductive sensing interface in electrochemical applications [ 56 ].…”

Section: Application Of Natural-derivedmentioning

confidence: 99%

Natural and Engineered Nanomaterials for the Identification of Heavy Metal Ions—A Review

et al. 2022

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In recent years, there has been much interest in developing advanced and innovative approaches for sensing applications in various fields, including agriculture and environmental remediation. The development of novel sensors for detecting heavy metals using nanomaterials has emerged as a rapidly developing research area due to its high availability and sustainability. This review emphasized the naturally derived and engineered nanomaterials that have the potential to be applied as sensing reagents to interact with metal ions or as reducing and stabilizing agents to synthesize metallic nanoparticles for the detection of heavy metal ions. This review also focused on the recent advancement of nanotechnology-based detection methods using naturally derived and engineered materials, with a summary of their sensitivity and selectivity towards heavy metals. This review paper covers the pros and cons of sensing applications with recent research published from 2015 to 2022.

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“…On the other hand, it was shown that due to its porous structure and active nucleation sites ES can be employed as a support for nanoparticles and can be applied in the electroanalytical determination of various analytes. For instance, Au/CaCO 3 was used for 4-nitrophenol electrochemical detection (Ding et al, 2020 ), while Fe 3 O 4 /eggshell composites were applied for the voltammetric determination of cadmium (Mohammadi et al, 2019 ).…”

Section: Application Of Eggshell-based Materials In Electrochemistrymentioning

confidence: 99%

State-of-the-Art of Eggshell Waste in Materials Science: Recent Advances in Catalysis, Pharmaceutical Applications, and Mechanochemistry

Baláž

Болдырева

Rybin

et al. 2021

Front. Bioeng. Biotechnol.

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Eggshell waste is among the most abundant waste materials coming from food processing technologies. Despite the unique properties that both its components (eggshell, ES, and eggshell membrane, ESM) possess, it is very often discarded without further use. This review article aims to summarize the recent reports utilizing eggshell waste for very diverse purposes, stressing the need to use a mechanochemical approach to broaden its applications. The most studied field with regards to the potential use of eggshell waste is catalysis. Upon proper treatment, it can be used for turning waste oils into biodiesel and moreover, the catalytic effect of eggshell-based material in organic synthesis is also very beneficial. In inorganic chemistry, the eggshell membrane is very often used as a templating agent for nanoparticles production. Such composites are suitable for application in photocatalysis. These bionanocomposites are also capable of heavy metal ions reduction and can be also used for the ozonation process. The eggshell and its membrane are applicable in electrochemistry as well. Due to the high protein content and the presence of functional groups on the surface, ESM can be easily converted to a high-performance electrode material. Finally, both ES and ESM are suitable for medical applications, as the former can be used as an inexpensive Ca2+ source for the development of medications, particles for drug delivery, organic matrix/mineral nanocomposites as potential tissue scaffolds, food supplements and the latter for the treatment of joint diseases, in reparative medicine and vascular graft producing. For the majority of the above-mentioned applications, the pretreatment of the eggshell waste is necessary. Among other options, the mechanochemical pretreatment has found an inevitable place. Since the publication of the last review paper devoted to the mechanochemical treatment of eggshell waste, a few new works have appeared, which are reviewed here to underline the sustainable character of the proposed methodology. The mechanochemical treatment of eggshell is capable of producing the nanoscale material which can be further used for bioceramics synthesis, dehalogenation processes, wastewater treatment, preparation of hydrophobic filters, lithium-ion batteries, dental materials, and in the building industry as cement.

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Sensitive voltammetric determination of cadmium at a carbon nanotubes/Fe3O4/eggshell composites modified carbon paste electrode

Cited by 14 publications

References 65 publications

Electrical and Electrochemical Sensors Based on Carbon Nanotubes for the Monitoring of Chemicals in Water—A Review

Electrical and Electrochemical Sensors Based on Carbon Nanotubes for the Monitoring of Chemicals in Water—A Review

Natural and Engineered Nanomaterials for the Identification of Heavy Metal Ions—A Review

State-of-the-Art of Eggshell Waste in Materials Science: Recent Advances in Catalysis, Pharmaceutical Applications, and Mechanochemistry

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