One-pot electrodeposition of metal organic frameworks composite accelerated by gold nanoparticles and electroreduced carbon dots for electroanalysis of bisphenol A in real plastic samples

Zhan, Xuhua; Hu, Shiyu; Wang, Jiaqi; Chen, Hong; Chen, Ximing; Yang, Jian‐Bo; Yang, Hai; Su, Zhaohong

doi:10.1016/j.snb.2021.130499

Cited by 34 publications

(12 citation statements)

References 35 publications

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“…And a MELCDs/MWCNTs-COOH composite was also prepared by mixing MELCD dispersion and MWCNT-COOH with ultrasound. Pretreatment of GCE 21 was according to the previous report.…”

Section: Methodsmentioning

confidence: 99%

“…And a MELCDs/MWCNTs-COOH composite was also prepared by mixing MELCD dispersion and MWCNT-COOH with ultrasound. Pretreatment of GCE 21 was according to the previous report. 4 μL (3 mg/mL) CDs/MWCNTs-COOH composite was dropped on the polished GCE (CDs/ MWCNTs-COOH/GCE).…”

Section: Methodsmentioning

confidence: 99%

“…The formation process of CDs is mostly polymerization, and the obtained CDs always have polymerization characteristics and rich reactive functional groups. However, CDs are less attractive in the application of electrochemical sensors, and one of the key problems is their poor conductivity. , Inspired by the electropolymerization of melamine in chloride ion solution, we believe that the nanomonomer (CDs fixed melamine residue) can still be electropolymerized to PMEL films in the solution containing chloride ions to enhance the conductivity of the CD composite. However, to the best of our knowledge, such attempts have not been reported to date.…”

Section: Introductionmentioning

confidence: 99%

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Melamine-Based Nanocomposites for Selective Dopamine and Uric Acid Sensing

Zhou

Kuang

et al. 2023

ACS Appl. Polym. Mater.

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The formation process of carbon dots (CDs) is mostly polymerization; recently, studies on the polymerization of carbon families (graphene oxide and C60) have been receiving exciting attention. Herein, a protocol of prepolymerization and electropolymerization of monomer (melamine) and nanomonomer (CDs fixed melamine residues) was proposed to prepare a nanocomposite for selective dopamine (DA) and uric acid (UA) sensing. The nanomonomer was prepared by hydrothermal prepolymerization of melamine, and then the nanocomposite was formed in situ by electropolymerization of the CDs/carboxylated multiwalled carbon nanotubes (MWCNTs-COOH)-modified glassy carbon electrode (GCE) in KCl solution. Scanning electron microscopy, transmission electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, cyclic voltammetry, electrochemical impedance spectroscopy, and differential pulse voltammetry were used to characterize the properties of the nanocomposite. Under optimal conditions, the electrochemical sensor shows selectivity and a wide linear range from 0.1 to 10 μM for DA and 0.1 to 200 μM for UA, with the detection limit of 0.023 and 0.064 μM (S/N = 3) in the presence of AA, respectively. In addition, the proposed sensor was also applied to selectively test DA and UA in the presence of 500 μmol/L AA in real samples with satisfactory recovery.

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“…And a MELCDs/MWCNTs-COOH composite was also prepared by mixing MELCD dispersion and MWCNT-COOH with ultrasound. Pretreatment of GCE 21 was according to the previous report.…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Melamine-Based Nanocomposites for Selective Dopamine and Uric Acid Sensing

Zhou

Kuang

et al. 2023

ACS Appl. Polym. Mater.

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“…A novel composite of MOFs, electroreduced carbon dots (ErCDs) and gold nanoparticles (AuNPs) was synthesized by Zhan [ 162 ] for the sensing and electro-analysis of bisphenol A. The composite of MOFs (AuNPs-ErCDs-MOFs) was synthesized via in situ synthesis by one pot electrodeposition method.…”

Section: Metal–organic Frameworkmentioning

confidence: 99%

“…This electrodeposition was due to the fact that the electronic transmission capacity of the MOFs composite could be enhanced effectively by AuNPs, ErCDs, and AuNPs-ErCDs, which in turn cause the MOFs to be a good conductive agent, then increase and improve its performance as sensors. When the proposed MOFs composites (AuNPs-ErCDs-MOFs) were used in the sensing and detection of bisphenol A (BPA), the fluorescence of the composite was quenched in the linear range of 7.0 × 10 −8 mol/L to 5 × 10 −7 mol/L and 5 × 10 −7 mol/L to 1.3 × 10 −6 mol/L for BPA with a limit of detection of 32 nmol/L [ 162 ].…”

Section: Metal–organic Frameworkmentioning

confidence: 99%

Synthesis of Metal–Organic Frameworks Quantum Dots Composites as Sensors for Endocrine-Disrupting Chemicals

Ajibade

Oloyede

2022

IJMS

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Hazardous chemical compounds such as endocrine-disrupting chemicals (EDCs) are widespread and part of the materials we use daily. Among these compounds, bisphenol A (BPA) is the most common endocrine-disrupting chemical and is prevalent due to the chemical raw materials used to manufacture thermoplastic polymers, rigid foams, and industrial coatings. General exposure to endocrine-disrupting chemicals constitutes a serious health hazard, especially to reproductive systems, and can lead to transgenerational diseases in adults due to exposure to these chemicals over several years. Thus, it is necessary to develop sensors for early detection of endocrine-disrupting chemicals. In recent years, the use of metal–organic frameworks (MOFs) as sensors for EDCs has been explored due to their distinctive characteristics, such as wide surface area, outstanding chemical fastness, structural tuneability, gas storage, molecular separation, proton conductivity, and catalyst activity, among others which can be modified to sense hazardous environmental pollutants such as EDCs. In order to improve the versatility of MOFs as sensors, semiconductor quantum dots have been introduced into the MOF pores to form metal–organic frameworks/quantum dots composites. These composites possess a large optical absorption coefficient, low toxicity, direct bandgap, formidable sensing capacity, high resistance to change under light and tunable visual qualities by varying the size and compositions, which make them useful for applications as sensors for probing of dangerous and risky environmental contaminants such as EDCs and more. In this review, we explore various synthetic strategies of (MOFs), quantum dots (QDs), and metal–organic framework quantum dots composites (MOFs@QDs) as efficient compounds for the sensing of ecological pollutants, contaminants, and toxicants such as EDCs. We also summarize various compounds or materials used in the detection of BPA as well as the sensing ability and capability of MOFs, QDs, and MOFs@QDs composites that can be used as sensors for EDCs and BPA.

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