Premium
Immobilization of T i O 2 into Self‐Supporting Photocatalytic Foam: Influence of Calcination Temperature
Author(s) -
Tytgat Tom,
Smits Marianne,
Lenaerts Silvia,
Verbruggen Sammy W.
Publication year - 2013
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12086
Subject(s) - calcination , materials science , photocatalysis , crystallinity , chemical engineering , porosity , rutile , degradation (telecommunications) , composite material , catalysis , organic chemistry , chemistry , telecommunications , computer science , engineering
Immobilization of photocatalytic powder is crucial to obtain industrially relevant purification processes. To achieve this goal, self‐supporting T i O 2 foams were manufactured by a polyacrylamide gel process. These gels were calcined at different temperatures to study the effect of the calcination temperature on foam characteristics (rigidity, crystallinity, and porosity) and its influence on photocatalytic activity. The results show that an optimal degradation is achieved for those foams calcined between 700 and 800°C. Calcination at higher temperatures results in a steep decrease in activity, explained by stability issues of the material due to formation of N a 2 SO 4 phases and a larger rutile fraction.