A novel bifunctional Ni-doped TiO2 inverse opal with enhanced SERS performance and excellent photocatalytic activity

A novel bifunctional Ni-doped TiO2 inverse opal with enhanced SERS performance and excellent... A) SEM image of nickel doped titanium dioxide IOPM (Ni-TiO2 IOPM); B) SERS spectra of 4-MBA with (a)1×10−5M, (b) 1×10−7M, (c) 1×10−9M, (d) 1×10−11M by using Ni-TiO2 IOPM as the substrate; C) UV–vis absorption spectrum degradation of MB dyes catalyzed by Ni-TiO2 IOPM with irradiation of simulated sunlight；D) Time-dependent ratios of the photocatalytic degradation of MB by (a)TiO2 IOPM and (b)Ni-TiO2 IOPM.In this manuscript, a novel bitifunctional nickel doped titanium dioxide IOPM (Ni-TiO2 IOPM) was successfully prepared by using PS spheres array as the template. The Ni-TiO2 IOPM exhibited highly sensitive detection for 4-mercaptobenzoic acid (4-MBA) at a concentration as low as 1×10−11M. And under the simulated sunlight, about 95% of the methylene blue (MB) is degraded within 90min. So the prepared Ni-TiO2 IOPM may be a promising bitifunctional SERS substrate candidate for organic sewage detection or environment clean, the fabrication strategy also can be extended to prepare other nanomaterials with orderly and porous structure. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

A novel bifunctional Ni-doped TiO2 inverse opal with enhanced SERS performance and excellent photocatalytic activity

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2017.08.091
Publisher site
See Article on Publisher Site

Abstract

A) SEM image of nickel doped titanium dioxide IOPM (Ni-TiO2 IOPM); B) SERS spectra of 4-MBA with (a)1×10−5M, (b) 1×10−7M, (c) 1×10−9M, (d) 1×10−11M by using Ni-TiO2 IOPM as the substrate; C) UV–vis absorption spectrum degradation of MB dyes catalyzed by Ni-TiO2 IOPM with irradiation of simulated sunlight；D) Time-dependent ratios of the photocatalytic degradation of MB by (a)TiO2 IOPM and (b)Ni-TiO2 IOPM.In this manuscript, a novel bitifunctional nickel doped titanium dioxide IOPM (Ni-TiO2 IOPM) was successfully prepared by using PS spheres array as the template. The Ni-TiO2 IOPM exhibited highly sensitive detection for 4-mercaptobenzoic acid (4-MBA) at a concentration as low as 1×10−11M. And under the simulated sunlight, about 95% of the methylene blue (MB) is degraded within 90min. So the prepared Ni-TiO2 IOPM may be a promising bitifunctional SERS substrate candidate for organic sewage detection or environment clean, the fabrication strategy also can be extended to prepare other nanomaterials with orderly and porous structure.

Journal

Applied Surface Science – Elsevier

Published: Jan 1, 2018

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