A novel hollow sphere bismuth oxide doped mesoporous carbon nanocomposite material derived from sustainable biomass for picomolar electrochemical detection of lead and cadmium

Zeinu, Kemal; Hou, Huijie; Liu, Bingchuan; Yuan, Xiqing; Huang, Long; Zhu, Xiaolei; Hu, Jingping; Yang, Jiakuan; Liang, Sha; Xu, Wu

doi:10.1039/c6ta04881a

Cited by 70 publications

(34 citation statements)

References 87 publications

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“…Biomass provides another green and sustainable natural source for low cost and mass production of functional porous carbon for emerging applications in environment, energy storage, and sensor material construction . Biomass‐derived carbon has the advantages of larger pore volumes and with a better controlled microstructure, which shows great potential in electrochemical heavy metal sensing.…”

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

“…Biomass‐derived carbon has the advantages of larger pore volumes and with a better controlled microstructure, which shows great potential in electrochemical heavy metal sensing. Corn powder‐derived mesoporous carbon aerogel doped with hollow sphere bismuth oxide was utilized as electrode material for the detection of Pb 2+ and Cd2 + . Sub‐picomolar detection limits were observed for both metal ions due to the synergetic effect of the large surface area of the carbon matrix with mesopores for analyte pre‐enrichment, the excellent electroanalytical activity of the bismuth oxide hollow sphere structure, and the beneficial oxygen functional groups on chitosan …”

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

“…( Table ). Preparation of the final electrode requires the prerequisite process of functional material synthesis and a secondary casting process . The functional materials usually consist of conductive frameworks with functional component containing rich metal attachment sites and/or binding agents, including carbon, bismuth, MOF, and a fixed mass of graphite powder or liquid paraffin.…”

Section: Design Of Electrode Integrationmentioning

confidence: 99%

“…Therefore, heavy metal ion sensors are highly demanded in environmental, health, and food analysis applications. While fast response, high sensitivity, and wide sensing spectrum are the generally required parameters for sensing, ease of operation with low cost is also highly demanded.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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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Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

Section: Design Of Electrode Integrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Self Cite

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show abstract

“…Electrochemical techniques are widely evaluated as simple and quick methods, and electrochemical voltammetry has been recognized as alternative analytical tool to determine trace heavy metals owing to its wide linear dynamic range, low detection limit, and multielement analysis capability . For voltammetry, its performance is strongly influenced by the working electrode materials, and various modifiers have been used on the surface of electrode to improve its properties, including organic ligands, polymer, ionic liquid, and the like .…”

Section: Introductionmentioning

confidence: 99%

Preparation of block copolymers via metal‐free visible‐light‐induced ATRP for the detection of lead ions

Sun

Zhao

et al. 2017

J of Applied Polymer Sci

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Polyacrylamide‐b‐poly(methacrylic acid) was prepared on the surface of Au electrode (Au/PAM/PMAA) for Pb2+ ion electrochemical sensing via metal‐free visible‐light‐induced atom transfer radical polymerization, which was very simple, convenient, and environmentally friendly. Au/PAM/PMAA was carefully examined by cyclic voltammetry, electrochemical impedance spectroscopy, and X‐ray photoelectron spectroscopy. Further, Au/PAM/PMAA was successfully used for the determination of Pb2+ ion by differential pulse anodic stripping voltammetry. Under the optimal conditions, a linear response from 1.0 × 10−11 to 1.0 × 10−4 mol/L with detection limit of 2.5 × 10−12 mol/L (S/N = 3) was achieved from the results of experiments. Comparing with similar Pb2+ sensors, the broader linear range and lower detection limit suggested the promising prospect of Au/PAM/PMAA. In a word, the work of this article had an important significance for the polymer‐modified electrodes and the sensitive detection of Pb2+. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45863.

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Galvanic Replacement of Liquid Metal/Reduced Graphene Oxide Frameworks

Wang

Chang

et al. 2020

Adv Materials Inter

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have increased dramatically. [1-3] Due to the excellent electrical and mechanical properties, gallium-based LM alloys are appropriate for flexible and stretchable electrodes and circuits and have gained a wide range of potential applications, such as 3D microstructure printing, [4] soft and stretchable electronics, [5-8] and energy storage. [9] Moreover, the unique properties of bulk gallium-based LMs in chemistry have been taken more attention [2] in the areas of biomedical theranostics, [10,11] chemical catalysts, [12] and synthesis of nanostructured materials in different shapes. [13-15] Utilizing gallium-based LMs as the reaction platform, 2D metal oxide [16] and graphene [17] have been synthesized on the surface of gallium-based LMs. Based on the amalgamation of LMs, a number of gallium-based binary-metal crystals have been produced, such as CuGa 2 crystal [13] produced by the electrochemistry and GaPd crystal [14] from the Czochralski method. Meanwhile, the galvanic replacement has been introduced to form noble metal nanoparticles and nanostructured gallium-based compounds, which is a simple and promising chemical route based on the redox reaction. [15,18] On the macroscale, a variety of noble metal nanoparticles could be produced via galvanic replacements between the bulk gallium-based LMs and precursors of noble metals. [19] And the gold thin films with the tunable surface morphology were formed on the surface of bulk gallium-based LMs in different pH ranges. [20] In the nanoscale, largely because of the low melting point [19,21] and deformability, [22] ultrasonication has been widely introduced to the preparation of nanoscale LM droplets. [5,23-31] For the nanoscale LM droplets, Hoshyargar et al. [19] carried out an experiment in which the bulk LM and the Ag/Au precursors were simultaneously under sonication, and the mixture of nanorice-like particles and Ag/Au nanoparticles was obtained. The galvanic replacement reactions between the gold precursor and the submicrometer LM droplets capped with polyvinylpyrrolidone, lysozyme or sodium alginate were studied by David et al. [15] And the morphology and composition of Au-LM frameworks influenced by the reaction rates were analyzed in the different concentrations of the alkaline gold precursor solution. However, the mechanism of galvanic replacement of LM nanodroplets is not still clearly explained. The diffusion resistance of metal precursors could affect the redox reaction between the metal precursors

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A novel hollow sphere bismuth oxide doped mesoporous carbon nanocomposite material derived from sustainable biomass for picomolar electrochemical detection of lead and cadmium

Abstract: A novel bismuth oxide-doped carbon nanocomposite showed excellent sensitivity and reproducibility and an ultralow detection limit for heavy metal monitoring.

Cited by 70 publications

References 87 publications

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

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

Preparation of block copolymers via metal‐free visible‐light‐induced ATRP for the detection of lead ions

Galvanic Replacement of Liquid Metal/Reduced Graphene Oxide Frameworks

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