Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403

공학

한국표면공학회지 (54권3호 144-151)

Preparation and Antibacterial Properties of the Planar-Type ZnO Powder Coated with Ag or CuO

Ag 또는 CuO를 코팅한 평판형 ZnO 분말의 합성 및 항균성 평가

홍다희a, 곽지유a, 전덕성a, 조동현b, 이건섭b, 이정환b, 이희철a,*
Da-Hee Honga, Ji-Yoo Gwacka, Deock-Seong Jeona, Dong-Hyeon Job, Gun-Sub Leeb, Jung-Hwan Leeb and Hee-Chul Leea,*

a한국산업기술대학교 신소재공학과, b(주)덕진 에너지사업부 연구소
aDepartment of advanced Materials Engineering, Korea Polytechnic University, Siheung 15073, Korea bEnergy Business Unit, Duckjin Co., Siheung 15078, Korea

DOI : 10.5695/JKISE.2021.54.3.144

Abstract

In the present work, planar-type ZnO powder of [0001] plane with a high aspect ratio range of 20:1 to 50:1 was synthesized. Ag or CuO could be coated on the planar-type ZnO powder by wet methods such as centrifugation or ball milling. During the coating, the average size of the powder was slightly increased while maintaining the shape and XRD pattern of ZnO. When Ag or CuO was coated, the absolute value of the zeta potential, as well as the concentration of oxygen vacancy, was increased. Ag or CuO coated planar-type ZnO power exhibited excellent antibacterial performance, which seems to be related to their high electrostatic attraction force. They could be made into a masterbatch by mixing with ABS resin, and their applicability to antibacterial substances was confirmed by manufacturing the caps of a keyboard.

Keywords

Planar-type ZnO, Wet coating, Centrifugation, Ball milling, Antibacterial