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Heechae Choi

Catalysis 2019
Heechae Choi, Speaker at Chemical Engineering Conferences
University of Cologne, Germany
Title : Effects of partial amorphization of TiO2 photocatalyst


eparation of photo excited electron-hole pair in a photocatalytic material, is well-known as the most important factor that determines the activity. For better carrier separations and photocatalysis, heterojunction formations and/or noble-metal cocatalysts have been suggested, and huge progresses in photocatalytic activities have been accomplished. However, such approaches make synthesis processes more complex and raise the production costs. In this study, we report that partial amorphization of anatase TiO2 greatly improves photocatalytic water splitting performances by inducing strong charge separations, using through density functional theory calculations and photocatalysis experiments.


Dr.Heechae Choi received his Ph.D degree in 2012 in Hanyang University (Seoul, Korea). After 4-year postdoctoral researcher period at Korea Institute of Science & Technology (KIST), he founded two companies, Virtual Lab Inc. and Materials Data Corp., which provide materials simulation software and materials processing consulting service, respectively. From September of 2018, Dr.Choi works in University of Cologne as a research group leader.