Construction of iron porphyrin/titanoniobate nanosheet sensors for the sensitive detection of nitrite
- 251 Downloads
The single-layered well-dispersed HTi2NbO7 nanosheets (NSs) with the thickness of ~ 1.08 nm were obtained by a simple exfoliation method. The electrochemical sensors based on HTi2NbO7 NSs and 5,10,15,20-tetrakis (N-methylpyridinium-4-yl) porphyrinato iron(III) (FeTMPyP) for sensitive detection of nitrite were then fabricated through the self-assembly technique, which was certified by Zeta potential analysis. The prepared samples were fully characterized by X-ray diffraction, X-ray energy dispersive spectrometer, scanning electron microscope, atomic force microscope, high-resolution transmission electron microscope, Fourier transform infrared and ultraviolet–visible spectrum. Electrochemical measurements demonstrated that FeTMPyP/HTi2NbO7 NSs nanocomposites exhibited enhanced electrocatalytic activities toward the oxidation of nitrite due to increased electron-transport properties. The oxidation peak current of nitrite was linearly associated with its concentration in the range from 0.0999 to 3.15 mmol L−1, with the detection limit of 3.15 × 10−5 mol L−1 (S/N = 3). The possible mechanism for nitrite oxidation on the surface of modified electrode was proposed. This study indicated that this biosensor has satisfactory stability, and detects nitrite in wastewater with strong anti-interference performance and good recovery.
This work was supported by Natural Science Fund of Jiangsu Province (BK20161294), HHIT Research Project (Z2015011), Lianyungang Science Project (CG1602), and the University Science Research Project of Jiangsu Province (15KJB430004).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 5.Zou CE, Yang B, Bin D, Wang J, Li S, Yang P, Wang C, Shiraishi Y, Du Y (2017) Electrochemical synthesis of gold nanoparticles decorated flower-like graphene for high sensitivity detection of nitrite. J Colloid Interface Sci 488:135–141. https://doi.org/10.1016/j.jcis.2016.10.088 CrossRefGoogle Scholar
- 16.Zhai Z, Hu C, Yang X, Zhang L, Liu C, Fan Y, Hou W (2012) Nitrogen-doped mesoporous nanohybrids of TiO2 nanoparticles and HTiNbO5 nanosheets with a high visible-light photocatalytic activity and a good biocompatibility. J Mater Chem 22:19122–19131. https://doi.org/10.1039/c2jm32338a CrossRefGoogle Scholar
- 21.Akatsuka K, Haga MA, Ebina Y, Osada M, Fukuda K, Sasaki T (2009) Construction of highly ordered lamellar nanostructures through Langmuir–Blodgett deposition of molecularly thin titania nanosheets tens of micrometers wide and their excellent dielectric properties. ACS Nano 3:1097–1106. https://doi.org/10.1021/nn900104u CrossRefGoogle Scholar
- 29.Shibata T, Takanashi G, Nakamura T, Fukuda K, Ebina Y, Sasaki T (2011) Titanoniobate and niobate nanosheet photocatalysts: superior photoinduced hydrophilicity and enhanced thermal stability of unilamellar Nb3O8 nanosheet. Energy Environ Sci 4:535–542. https://doi.org/10.1039/c0ee00437e CrossRefGoogle Scholar
- 31.Pan B, Zhao W, Zhang X, Li J, Xu J, Ma J, Liu L, Zhang D, Tong Z (2016) Research on the self-assembly of exfoliated perovskite nanosheets (LaNb2O7 −) and cobalt porphyrin utilized for the electrocatalytic oxidation of ascorbic acid. RSC Adv 6:46388–46393. https://doi.org/10.1039/c6ra06429a CrossRefGoogle Scholar
- 34.Zhang X, Wang M, Li D, Liu L, Ma J, Gong J, Yang X, Xu X, Tong Z (2013) Electrochemical investigation of a novel metalloporphyrin intercalated layered niobate modified electrode and its electrocatalysis on ascorbic acid. J Solid State Electron 17:3177–3184. https://doi.org/10.1007/s10008-013-2230-0 CrossRefGoogle Scholar
- 36.Suslick KS, Watson RA (1992) The photochemistry of chromium, manganese, and iron porphyrin complexes. New J Chem 16:633–642Google Scholar
- 42.Armijo F, Goya MC, Reina M, Canales MJ, Arévalo MC, Aguirre MJ (2007) Electrocatalytic oxidation of nitrite to nitrate mediated by Fe(III) poly-3-aminophenyl porphyrin grown on five different electrode surfaces. J Mol Catal A Chem 268:148–154. https://doi.org/10.1016/j.molcata.2006.11.055 CrossRefGoogle Scholar
- 44.Lin A, Wen Y, Zhang L, Lu B, Li Y, Jiao Y, Yang H (2011) Layer-by-layer construction of multi-walled carbon nanotubes zinc oxide, and gold nanoparticles integrated composite electrode for nitrite detection. Electrochim Acta 56:1030–1036. https://doi.org/10.1016/j.electacta.2010.10.058 CrossRefGoogle Scholar
- 45.Pan B, Ma J, Zhang X, Li J, Liu L, Zhang D, Yang M, Tong Z (2015) A laminar nanocomposite constructed by self-assembly of exfoliated α-ZrP nanosheets and manganese porphyrin for use in the electrocatalytic oxidation of nitrite. J Mater Sci 50:6469–6476. https://doi.org/10.1007/s10853-015-9205-8 CrossRefGoogle Scholar
- 48.Hu F, Chen S, Wang C, Yuan R, Yuan D, Wang C (2012) Study on the application of reduced graphene oxide and multiwall carbon nanotubes hybrid materials for simultaneous determination of catechol, hydroquinone, p-cresol and nitrite. Anal Chim Acta 724:40–46. https://doi.org/10.1016/j.aca.2012.02.037 CrossRefGoogle Scholar
- 49.do Carmo DR, Paim LL, Metzker G, Dias Filho NL, Stradiotto NR (2010) A novel nanostructured composite formed by interaction of copper octa (3-aminopropyl) octasilsesquioxane with azide ligands: preparation, characterization and a voltammetric application. Mater Res Bull 45:1263–1270. https://doi.org/10.1016/j.materresbull.2010.05.005 CrossRefGoogle Scholar