One-Pot Synthesis of Titanate Nanotubes Decorated with Anatase Nanoparticles Using a Microwave-Assisted Hydrothermal Reaction-Reference-Cited by-同舟云学术

One-Pot Synthesis of Titanate Nanotubes Decorated with Anatase Nanoparticles Using a Microwave-Assisted Hydrothermal Reaction

Published:2019-03-14 Issue: Volume:2019 Page:1-10
ISSN:1687-4110
Container-title:Journal of Nanomaterials
language:en
Short-container-title:Journal of Nanomaterials

Author:

Gusmão Suziete B. S.¹,Ghosh Anupama²^ORCID,Marques Thalles M. F.³,Ferreira Odair P.⁴^ORCID,Lobo Anderson O.¹⁵,Osajima Josy A. O.¹,Luz-Lima Cleanio²,Sousa Romulo R. M.¹,Matos Jose M. E.⁶,Viana Bartolomeu C.¹²^ORCID

Affiliation:

1. Interdisciplinary Laboratory of Advanced Materials, Materials Science and Engineering Graduate Program, Federal University of Piaui, Teresina, PI CEP 64049-550, Brazil

2. FisMat, Department of Physics, Federal University of Piaui, Teresina, PI CEP 64049-550, Brazil

3. Federal Institute of Technology, Ciência e Tecnologia do Piauí, São João do Piauí, PI 64760-000, Brazil

4. Laboratory of Advanced Functional Materials, Department of Physics, Federal University of Ceará, Fortaleza, CE CEP 60455-900, Brazil

5. Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA

6. Department of Chemistry, Federal University of Piaui, Teresina, PI CEP 64049-550, Brazil

Abstract

A nanoheterostructure of titanate nanotubes decorated with anatase nanoparticles (TiNT@AnNP) was synthesized for the first time by a microwave-assisted hydrothermal one-pot reaction. Characterization by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, high-resolution transmission electron microscopy, selected-area electron diffraction, and X-ray photoelectron spectroscopy showed highly crystalline and nanometer-sized TiNT@AnNP. The synthesized TiNT@AnNP degraded an anionic dye (Remazol blue) more efficiently under UV-visible light (380–780 nm) than a commercial anatase-TiO2 precursor. We correlated this increased efficiency of photodegradation to the large surface area and the efficient separation of photoinduced electron-hole pairs. Finally, we propose a mechanism to highlight the influence of a microwave-assisted hydrothermal synthesis in the production of TiNT@AnNP for environmental applications.

Funder

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Publisher

Hindawi Limited

Subject

General Materials Science

Link

http://downloads.hindawi.com/journals/jnm/2019/4825432.pdf

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