Synthesis of biomorphic paper-derived anatase

resumo

Biomorphic anatase-based plates were obtained using paper as template for fixing TiO2. Ceramics with a microstructure similar to paper were produced by infiltration in TiCl4 and hydrolysis in NH4OH at temperatures between -25 and 25 degrees C, followed by air drying and calcination up to 1000 degrees C. After thermal treatment, the samples were characterized by XRD, TG/DTA, BET, SEM and EDX. Plates manufactured by infiltration in TiCl4 and hydrolysis in NH4OH at 0 degrees C presented anatase as major phase, whose amount decreases with increasing calcination temperature. The results showed that by decreasing the infiltration and hydrolysis temperature, the surface area decreased, crystallite size increased and the anatase-to-rutile transformation was inhibited. (C) 2014 Elsevier B.V. All rights reserved.

palavras-chave

RUTILE PHASE-TRANSFORMATION; POROUS TITANIA; TIO2; CERAMICS; PARTICLES; DEGRADATION; TRANSITION; STABILITY; DOPANTS; POWDERS

categoria

Materials Science; Physics

autores

Silvestri, S; Szpoganicz, B; Hotza, D; Labrincha, JA

nossos autores

agradecimentos

The financial support of CNPq is gratefully acknowledged.

Partilhe este projeto

Publicações similares

Usamos cookies para atividades de marketing e para lhe oferecer uma melhor experiência de navegação. Ao clicar em “Aceitar Cookies” você concorda com nossa política de cookies. Leia sobre como usamos cookies clicando em "Política de Privacidade e Cookies".