Ag/ZnO 복합체 충전이 종이의 항진균성에 미치는 영향 (Effects of Ag/ZnO Composite Fillers on the Antifungal Activity of Paper)

서지정보

· 발행기관 : 한국펄프·종이공학회
· 수록지 정보 : 펄프종이기술 / 49권 / 4호 / 134 ~ 142페이지
· 저자명 : 임종근, Lili Melani, 김형진

초록

Paper is generally worn by the physical, chemical and biological factors which influence on the long term preservation stability resulting in preserving paper cultural assets.
Generally, nano Ag and ZnO have been known to have anti-microbial functions. In this study, these have been evaluated to their effects on increasing the resistance against the biological degradation of the cultural assets. Ag/ZnO composites were prepared by photocatalytic reduction of Ag+ on ZnO with ethanol as the hole scavenger. The Ag/ZnO composite features were analyzed by XRD, SEM-EDS measurement. The photocatalytic reduction was found suitable for Ag loading due to its short reaction time and simplicity.
Papers prepared with micro size ZnO (m-ZnO), nano size ZnO (n-ZnO), and Ag/ZnO addition were tested on physical, optical, and antifungal properties. The strength of the n-ZnO added paper was higher than that of the m-ZnO added paper and that of the Ag/ ZnO composite added paper. The Ag/ZnO added paper showed a tendency to improve opacity, but its brightness was degenerated. The antifungal test using Aspergillus niger and Trichoderma viride confirmed antifungal property in the Ag/ZnO composite paper and ZnO particles added paper. Especially, the antifungal property was shown to have significantly increased by Ag/ZnO composite. And the smaller ZnO particle size with its higher addition increased antifungal activity in paper.

영어초록

Paper is generally worn by the physical, chemical and biological factors which influence on the long term preservation stability resulting in preserving paper cultural assets.
Generally, nano Ag and ZnO have been known to have anti-microbial functions. In this study, these have been evaluated to their effects on increasing the resistance against the biological degradation of the cultural assets. Ag/ZnO composites were prepared by photocatalytic reduction of Ag+ on ZnO with ethanol as the hole scavenger. The Ag/ZnO composite features were analyzed by XRD, SEM-EDS measurement. The photocatalytic reduction was found suitable for Ag loading due to its short reaction time and simplicity.
Papers prepared with micro size ZnO (m-ZnO), nano size ZnO (n-ZnO), and Ag/ZnO addition were tested on physical, optical, and antifungal properties. The strength of the n-ZnO added paper was higher than that of the m-ZnO added paper and that of the Ag/ ZnO composite added paper. The Ag/ZnO added paper showed a tendency to improve opacity, but its brightness was degenerated. The antifungal test using Aspergillus niger and Trichoderma viride confirmed antifungal property in the Ag/ZnO composite paper and ZnO particles added paper. Especially, the antifungal property was shown to have significantly increased by Ag/ZnO composite. And the smaller ZnO particle size with its higher addition increased antifungal activity in paper.

참고자료

· 없음