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Fabrication of 2D ordered mesoporous carbon nitride and its use as electrochemical sensing platform for H2O2, nitrobenzene, and NADH detection

Author:
Zhang, Yufan, Bo, Xiangjie, Nsabimana, Anaclet, Luhana, Charles, Wang, Guang, Wang, Huan, Li, Mian, Guo, Liping
Source:
Biosensors & bioelectronics 2014 v.53 pp. 250-256
ISSN:
0956-5663
Subject:
Fourier transform infrared spectroscopy, NAD (coenzyme), X-ray diffraction, X-ray photoelectron spectroscopy, adsorption, biosensors, carbon nitride, composite materials, electrochemistry, hydrogen peroxide, melamine, porous media, pyrolysis, scanning electron microscopy, silica, surface area, temperature, transmission electron microscopy
Abstract:
Two-dimensional ordered mesoporous carbon nitride (OMCN) has been successfully prepared for the first time using SBA-15 mesoporous silica and melamine as template and precursor respectively, by a nano hard-templating approach. A series of OMCN-x samples with different pyrolysis temperatures have been reported. The formation of these composite materials was verified by detailed characterization (e.g., Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, N2 adsorption, X-ray diffraction, scanning electron microscopy, and transmission electron microscopy). The results showed that the materials were structurally well ordered with two-dimensional porous structure, high surface area and large pore volume. The influence of BET surface area and different amounts of N-bonding configurations formed at different pyrolysis temperatures of OMCN-x for the electrocatalysis towards hydrogen peroxide, nitrobenzene, and nicotinamide adenine dinucleotide were investigated in detail. Results indicated that OMCN treated at 800°C with largest BET surface area and highest amounts of pyrindinic N showed improved electrocatalytic activity for H2O2, nitrobenzene, and NADH in neutral solution.
Agid:
5533403