[나융]Small Scale Interface and Surface Engineering

Title: Small Scale Interface and Surface Engineering

Speaker: 우상혁 교수 (중앙대학교)

Date & Time: 2017년 12월 6일 (수)  17:00

Where: 융대원 D-122호

Abstract

Wetting on solid surfaces has been numerously studied for last few decades. Especially superwettable surfaces has received attention for its commercial potentials related to various application. Due to its effective liquid-repelling property, those surfaces are able to be used for wider range of applications such as particle synthesis and liquid-gas membranes. So far, super-liquid-repelling properties have been successfully achieved with various methods, therefore now it is time to combine superwettable surfaces on various materials for more general use. Here, I introduce a superwettable surface combined with photocatalyst, named hydrophobic metal-oxide photocatalyst. It is realized by applying a new polydimethylsiloxane (PDMS) grafting reaction to the surface of metal-oxide photocatalyst by simple illumination. Metal-oxide photocatalyst becomes hydrophobic by grafting PDMS brush, and repels most liquids due to flexible backbone of PDMS. In addition, the photocatalytic activity is remained keeping hydrophobicity stably. This combination of photocatalytic activity and hydrophobic surface effectively improves performances of applications of photocatalysts, e.g. self-cleaning and anti-biofouling surfaces, and opens a door for broader uses of photocatalytic activity with hydrophobic surfaces.

Biography

학 력

Ph.D Chemical Engineering, Seoul National University, Seoul, Korea [2013]

M.S. Chemical Engineering, Seoul National University, Seoul, Korea [2008]

B.S. Chemical Engineering, Seoul National University, Seoul, Korea [2006]

경 력

Group Leader [April 2017 – August 2017]

“Max Planck Center for Complex Fluid Dynamics” at Max Planck Institute for Polymer Research

Postdoctoral Researcher [July 2014 – March 2017]

Humboldt Postdoctoral Research Fellow (Feb. 2015 – Jan. 2017),
Max Planck Institute for Polymer Research, Department of Physics at Interfaces, Advisor: Director Prof. Hans-Jürgen Butt

Postdoctoral Researcher [March 2013 – June 2014]

Seoul National University, School of Chemical and Biological Engineering, Advisor: Prof. Kooheon Char

 

초청자 : 융합과학부 나노융합전공 김연상 교수 (연락처 : 031-888-9131, younskim@snu.ac.kr)

2017-12-01|