Doped and undoped anatase-based plates obtained from paper templates for photocatalytic oxidation of NOX


Titanium dioxide is frequently used for the photocatalytic degradation of organic and inorganic pollutants present in the air, such as NOx. In this work, biomorphic anatase-based plates were manufactured using paper as an innovative template for fixation of TiO2. Ceramics with microstructure similar to paper were produced by infiltration of titanium isopropoxide (TTiP) and dopants, followed by hydrolysis in NH4OH, air drying, and calcination at temperatures up to 1000 degrees C. After heat treatment, the samples were characterized by XRD, TG/DTA, BET, EPR, and SEM. Anatase was obtained as the major phase at 800 degrees C and remained present up to 1000 degrees C. In tests of photocatalytic efficiency of produced plates for degradation of NOx gases, the best performance was obtained with a biomorphic anatase-based plate prepared using TTiP doped with 5% Zr4+, corresponding to 100% degradation of NOx in 35 min. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.



subject category

Materials Science


Silvestri, S; Szpoganicz, B; Schultz, J; Mangrich, AS; Hotza, D; Garcia, DE; Labrincha, JA

our authors


The authors gratefully acknowledge the financial support provided by the Brazilian funding agency Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq, under grant number 400569/2013-2), and Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES), Institute Nacional de Ciencia e Tecnologia (INCT catalise) and Laboratorio de Catalise e Fenomenos Interfaciais (LACFI- UFSC) are also gratefully acknowledged for their support.

Share this project:

Related Publications

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".