Enhanced photocatalytic performance of brookite TiO2 macroporous particles prepared by spray drying with colloidal templating

Ferry Iskandar, Asep Bayu Dani Nandiyanto, Ki Myoung Yun, Christopher Joseph Hogan, Kikuo Okuyama, Pratim Biswas

Research output: Contribution to journalArticlepeer-review

241 Scopus citations

Abstract

The synthesis and photocatalytic performance of brookite TiO2 macroporous particles was investigated using spray drying and colloidal templating. Macroporous brookite titania particles with sub-micrometer diameters were prepared by spry drying a suspension of brookite nanoparticles and polystyrene latex (PSL) particle, which were used for colloidal templating. The photocatalytic performance of porous particles were optimized by changing particle diameter and pore diameter with concentration of titania and PSL in the spray solution. The photocatalytic performance of prepared particles were evaluated by measuring the photodegradation of rhodamine B catalyzed by prepared particles under UV illumination. It was observed that porous titania particles prepared using the spray-drying method exhibited enhanced photocatalytic performance over nonporous titania microparticles. Reslut shows that macroporous particles are more phocatalytically active due to increased surface area.

Original languageEnglish (US)
Pages (from-to)1408-1412
Number of pages5
JournalAdvanced Materials
Volume19
Issue number10
DOIs
StatePublished - May 21 2007

Fingerprint Dive into the research topics of 'Enhanced photocatalytic performance of brookite TiO<sub>2</sub> macroporous particles prepared by spray drying with colloidal templating'. Together they form a unique fingerprint.

Cite this