Designing and application of PPy/Bi2MoO6/chitosan nanocomposites for electrochemical detection of ciprofloxacin and benzene and evaluation of hydrogen evolution reaction.

Bano, Sayfa; Ganie, Adil Shafi; Khan, Rashid Imran Ahmad; Sultana, Saima; Khan, Mohammad Zain; Sabir, Suhail

doi:10.1016/j.surfin.2022.101786

Cited by 14 publications

(6 citation statements)

References 61 publications

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“…This method is used to improve the signal-to-noise ratio affected by nonfaradaic current arising from the carbon support. 26,27 A negative potential shift in the peak position up to 75 mV was observed for the 1.0 nm Pt island sample compared to commercial Pt/C (Table S3). This indicates the weakening of hydrogen binding energy, which is desired for faster H 2 desorption in HER.…”

Section: Resultsmentioning

confidence: 98%

“…To understand the origin of the increase in HER activity, differential pulse voltammetry (DPV) was performed to obtain the precise position of the adsorption peak in the H upd region. This method is used to improve the signal-to-noise ratio affected by nonfaradaic current arising from the carbon support. , A negative potential shift in the peak position up to 75 mV was observed for the 1.0 nm Pt island sample compared to commercial Pt/C (Table S3). This indicates the weakening of hydrogen binding energy, which is desired for faster H 2 desorption in HER .…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Understanding the Role of Small Platinum Island Size on Crystalline Nickel Nanoparticles in Enhancing the Hydrogen Evolution Reaction

Mariandry,

Cheong,

Gloag

et al. 2024

J. Phys. Chem. C

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The development of Pt on Ni nanoparticles is critical for the improvement of water splitting reactions. Here, the growth of small, below 2 nm Pt islands on crystalline branched Ni nanoparticles was investigated by tuning the size of the islands using a slow seeded-growth synthesis. Smaller island size results in a greater shift in the hydrogen binding energy on the Pt sites, as characterized by the hydrogen underpotential peak position in the voltammogram. This shift indicates the weakening of the binding to hydrogen, which leads to enhanced alkaline hydrogen evolution reaction activity with smaller Pt island size.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Understanding the Role of Small Platinum Island Size on Crystalline Nickel Nanoparticles in Enhancing the Hydrogen Evolution Reaction

Mariandry,

Cheong,

Gloag

et al. 2024

J. Phys. Chem. C

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“…Bi 2 MoO 6 as an inexpensive precursor instead of Au in the composite with polypyrrole/CS accommodated electrochemical hydrogen production with the low Tafel slope of 19.16 mV dec −1 . This success in the yield was also attributed to the high surface area, in which the exfoliated morphology enhanced the surface area [54].…”

Section: Advances In Polymer Technologymentioning

confidence: 99%

A Review on Hydrogen Generation by Photo-, Electro-, and Photoelectro-Catalysts Based on Chitosan, Chitin, Cellulose, and Carbon Materials Obtained from These Biopolymers

Keshipour,

Hadidi,

Gholipour

2023

Advances in Polymer Technology

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Biopolymer-based catalysts like chitosan, chitin, and cellulose offer sustainability and high efficiency both as the catalyst or catalyst support in a broad range of applications, especially in hydrogen evolution reactions. This review focused on hydrogen evolution catalysts of chitosan, chitin, cellulose, and carbon materials obtained from these biopolymers to highlight the opportunities of these sustainable catalysts in this field. All the reports in this area could be classified as one of the photocatalysts, electrocatalysts, and photoelectrocatalysts, and their mechanisms were clarified in the beginning. Then, the results of catalysts obtained from each of these biopolymers were discussed separately to reveal the roles of the biopolymers. It was concluded that all of the biopolymers enjoy some common benefits like hydrogen bonding, chelating with transition metals, easy chemical modification, high performance, and potential to be used as the precursors of carbon or porous materials. Among them, chitosan showed outstanding merit due to the better performance in metal grafting, amendment, and ability of hydrogen bonding. Moreover, it provides highly active nitrogen-doped carbon as the support of transition metals in the hydrogen generation, enhancing the reaction rate by retarding the charges recombination.

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“…The sensor exhibits the linear response in two concentration windows of 1.0 × 10 −11 M and 1.0 × 10 −4 , with LOD of 3.0 × 10 −12 M. The glassy carbon electrode (GCE) modified through coating with a film of poly(l-cys)/AuNPs/rGO/GCE was found to offer high stability, reproducibility, and repeatability, as well as selectivity and was successfully used in the analysis of the LEV in synthetic blood serum, with recovery values of around 99%. In another study conducted by Bano et al ( 2022 ), a novel PPy/Bi 2 MoO 6 /chitosan nanocomposites was prepared for electrochemical detection of CIP and benzene. The as-prepared sensor has shown a distinct increase in electrocatalytic and electrochemical activity.…”

Section: Nanomaterial-based Biosensorsmentioning

confidence: 99%

Functionalities of electrochemical fluoroquinolone sensors and biosensors

Nepfumbada,

Mthombeni,

Sigwadi

et al. 2023

Environ Sci Pollut Res

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Fluoroquinolones (FQs) are a class of broad-spectrum antimicrobial agents that are used to treat variety of infectious diseases. This class of antibiotics was being used for patients exhibiting early symptoms of a human respiratory disease known as the COVID-19 virus. As a result, this outbreak causes an increase in drug-resistant strains and environmental pollution, both of which pose serious threats to biota and human health. Thus, to ensure public health and prevent antimicrobial resistance, it is crucial to develop effective detection methods for FQs determination in water bodies even at trace levels. Due to their characteristics like specificity, selectivity, sensitivity, and low detection limits, electrochemical biosensors are promising future platforms for quick and on-site monitoring of FQs residues in a variety of samples when compared to conventional detection techniques. Despite their excellent properties, biosensor stability continues to be a problem even today. However, the integration of nanomaterials (NMs) could improve biocompatibility, stability, sensitivity, and speed of response in biosensors. This review concentrated on recent developments and contemporary methods in FQs biosensors. Furthermore, a variety of modification materials on the electrode surface are discussed. We also pay more attention to the practical applications of electrochemical biosensors for FQs detection. In addition, the existing challenges, outlook, and promising future perspectives in this field have been proposed. We hope that this review can serve as a bedrock for future researchers and provide new ideas for the development of electrochemical biosensors for antibiotics detection in the future.

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Designing and application of PPy/Bi2MoO6/chitosan nanocomposites for electrochemical detection of ciprofloxacin and benzene and evaluation of hydrogen evolution reaction.

Cited by 14 publications

References 61 publications

Understanding the Role of Small Platinum Island Size on Crystalline Nickel Nanoparticles in Enhancing the Hydrogen Evolution Reaction

Understanding the Role of Small Platinum Island Size on Crystalline Nickel Nanoparticles in Enhancing the Hydrogen Evolution Reaction

A Review on Hydrogen Generation by Photo-, Electro-, and Photoelectro-Catalysts Based on Chitosan, Chitin, Cellulose, and Carbon Materials Obtained from These Biopolymers

Functionalities of electrochemical fluoroquinolone sensors and biosensors

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