A new electrochemical sensor designed by modifying the commercial boron-doped diamond (BDD) electrode with graphene oxide (GO) reduced electrochemically and further electrodecorated with silver (Ag), named the Ag/GO/BDD electrode, was selected among a series of the BDD, GOelectroreduced onto BDD (GO/BDD) and silver electrodeposited onto BDD (Ag/BDD) electrodes for the detection of tetracycline (TC) in aqueous solution. The best results regarding the sensitivity of 46.6 µA·µM·cm and the lowest limit of detection of 5 nM was achieved using square-wave voltammetry (SWV) operated at the step potential of 5 mV, modulation amplitude of 200 mV and the frequency of 10 Hz in alkaline medium. The application of the alkaline supporting electrolyte-based procedure is limited for water monitoring due to the presence of chloride that interferes with TC detection; however, it can be applied for quantitative determination of pharmaceutical formulations. 0.1 M NaSO supporting electrolyte eliminated chloride interference and can be used for the application of Ag/GO/BDD in practical detection of TC in water.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8232175 | PMC |
| http://dx.doi.org/10.3390/nano11061566 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A molecular dynamics investigation into manipulating graphene flake spacing for increased selectivity towards short chain PFAS capture.
Chemosphere
January 2025
US Army Corps of Engineers, Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS, 39180, United States. Electronic address:
Per- and polyfluoroalkyl substances (PFAS) are environmentally persistent contaminants that are often referred to as "Forever Chemicals". They are used in industrial and household products; however, they are resistant to degradation. Thus, PFAS contamination has become a wide-spread issue.
View Article and Find Full Text PDFFoaming ink for 3D-printing of ultralight and hyperelastic graphene architectures: Multiscale design and ultra-efficient electromagnetic interference shielding.
J Colloid Interface Sci
January 2025
School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006 China; Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, School of Advanced Manufacturing, Guangdong University of Technology, Jieyang 515200 China. Electronic address:
Extrusion-based printing of macroscopic architectures layer-by-layer offers new opportunities for constructing customized electromagnetic interference (EMI) shielding materials. However, current research primarily focuses on improving the printability of material inks by increasing contents and adding various modifiers, controllable construction of ultralight and robust macro-architectures with structural design at both macro- and micro-scales is still challenging. Herein, we develop a graphene oxide foaming ink enriched with air bubbles for direct-ink writing, enabling the creation of macroscopic graphene architectures with arbitrary geometries.
View Article and Find Full Text PDFPolyurethane-grafted graphene oxide from repurposed foam mattress waste.
RSC Adv
January 2025
Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
Polyurethanes (PU) make up a large portion of commodity plastics appearing in applications including insulation, footwear, and memory foam mattresses. Unfortunately, as thermoset polymers, polyurethanes lack a clear path for recycling and repurposing, creating a sustainability issue. Herein, using dynamic depolymerization, we demonstrate a simple one-pot synthesis for preparation of an upcycled polyurethane grafted graphene material (PU-GO).
View Article and Find Full Text PDFAdvancing bio-filter materials for enhanced desalination in agricultural applications.
RSC Adv
January 2025
Centre for Advanced Materials and Devices (CAMD), Department of Chemistry, Faculty of Science, University of Colombo Colombo Sri Lanka
The global scarcity of irrigation-grade water poses severe concerns in the agricultural sector. Desalination techniques including reverse osmosis, electrodialysis, capacitive deionization, membrane filtration, and multi-stage flash are some dynamic solutions to mitigate this challenge. In this study, novel bio-filter materials were explored and developed for the application of membrane-based electrodialysis.
View Article and Find Full Text PDFHierarchical structures of GO-supported BiBTC MOFs for efficient RhB photodegradation.
RSC Adv
January 2025
Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City No. 12 Nguyen Van Bao Street Ward 1 Go Vap District Ho Chi Minh City Vietnam
This study, we synthesized a graphene oxide@BiBTC MOF (GO@BiBTC) photocatalyst using a hydrothermal method. The resulting samples were comprehensively characterized using FT-IR, Raman spectra, XRD, SEM, TEM, XPS and UV-Vis spectroscopy. The photodegradation reaction fits the pseudo-first-order kinetics and the deterioration rate constants () value of BiBTC, GO@BiBTC MOF composites were 0.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!