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Preparation of graphitic mesoporous carbon for the simultaneous detection of hydroquinone and catechol

Paper ID Volume ID Publish Year Pages File Format Full-Text
46018 46428 2013 8 PDF Available
Title
Preparation of graphitic mesoporous carbon for the simultaneous detection of hydroquinone and catechol
Abstract

A graphitic mesoporous carbon (GMC) had been successfully synthesized using Ni–Fe layered double hydroxide (LDH) as both template and catalyst under a relatively low pyrolysis temperature. The techniques of X-ray diffraction, transmission electron microscopy, Raman spectrum and N2 adsorption/desorption were used to characterize the physico-chemical properties of the as-prepared GMC. Meanwhile, the voltammetric behaviors of hydroquinone (HQ) and catechol (CC) were studied at the GMC modified glassy carbon electrode (GMC/GCE). The separation of the oxidation and reduction peak (ΔEp) for HQ and CC were decreased from 369 to 42 mV and from 365 to 52 mV, respectively, and the anodic peak currents for the oxidation of both HQ and CC were also remarkably increased at the GMC/GCE. Furthermore, at the GMC/GCE, the two components could be entirely separated with a large oxidation peak potential separation between HQ and CC. Under the optimized condition, the peak currents of HQ and CC increased linearly with increasing HQ and CC contents. The detection limit for HQ and CC was 3.7 × 10−7 and 3.1 × 10−7 mol L−1, respectively.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Simultaneous identification of HQ and CC by using CV and DPV has been achieved. ► Highly graphitic mesoporous carbon (GMC) modified electrode with high specific surface area was prepared. ► A simple solid-phase technique under a relatively low pyrolysis temperature is used.

Keywords
Graphitic mesoporous carbon; Layered double hydroxides; Simultaneous detection of hydroquinone and catechol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 129, 17 January 2013, Pages 367–374
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us