Publication Date:
2019
Description:
Abstract
Inspired by fiber‐interwoven eggshell membrane (ESM) with associated specific permeability and transport performance, interconnected nanotube networks are constructed to empolder relevant distinctive properties and functional advantages. In this work, a typical ESM‐templated procedure combined with stepwise impregnation and gradient calcination is developed to accomplish the fabrication of multilevel frameworks from TiO2 nanocrystallites to porous multiwalled nanotubes to final interconnected networks. During the impregnation process, in‐situ mineralization occurs on ESM fiber substrate to generate Ti‐impregnant coating with variant composition and layered structure. Followed by the calcination, anatase TiO2 porous nanotubes come into being as ESM templates decompose at 500 °C, then heterogeneous nanocrystallites are achieved at higher temperature. Thus, the final ESM‐morphic nanocomposites present interconnected networks woven by porous multiwalled nanotubes. Benefiting from interconnected multichannels of multilevel networks and controllable heterogeneous nanocrystallites, the ESM‐inspired TiO2 would behave higher light‐excitation and transport efficiency, which can achieve more valuable applications such as photocatalytic degradation to some organic pollutants.
This article is protected by copyright. All rights reserved.
Print ISSN:
0002-7820
Electronic ISSN:
1551-2916
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
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