Facile in-situ growth of Ag/TiO2 nanoparticles on polydopamine modified bamboo with excellent mildew-proofing

被引：36

作者：

Liu, Gonggang ^{[1
]}

Lu, Zhou ^{[1
]}

Zhu, Xiu ^{[1
]}

Du, Xiaoqing ^{[2
]}

Hu, Jinbo ^{[1
]}

Chang, Shanshan ^{[1
]}

Li, Xianjun ^{[1
]}

Liu, Yuan ^{[1
]}

机构：

[1] Cent South Univ Forestry & Technol, Hunan Prov Key Lab Mat Surface & Interface Sci &, Coll Mat Sci & Engn, Shaoshan South Rd 498, Changsha 410004, Hunan, Peoples R China

[2] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528300, Peoples R China

来源：

SCIENTIFIC REPORTS | 2019年 / 9卷 / 1期

基金：

中国国家自然科学基金;

关键词：

PHOTOCATALYTIC ACTIVITY; MECHANICAL-PROPERTIES; SURFACE; DEGRADATION; DECORATION; RESISTANCE; CHEMISTRY; ROUTE;

D O I：

10.1038/s41598-019-53001-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Bamboo with the outstanding properties, such as good mechanical strength, fast growth rate and low growth cost, is considered as one of utilitarian structural nature materials. But bamboo is easy to get mildewed resulting in disfiguration and fungi corrosion. In this work, a facile method was developed to improve the mildew-proofing capability of bamboo. Mussel-inspired polydopamine (PDA) with biomimetic adhesion function and highly active functional groups was employed to immobilize highly-dispersed Ag and TiO2 nanoparticles on the surface of bamboo via an in-situ growth method. Integrating the uniform PDA coating, photocatalytic function of TiO2 nanoparticles and bactericidal role of Ag nanoparticles, the mildew-proofing capability of bamboo is enhanced significantly. The results show a non-covalent interaction is more likely to account for the binding mechanism of PDA to bamboo. And the prepared bamboo samples show good photocatalytic performance and have excellent resistance leachability. Meanwhile, the mildew-proofing property of prepared bamboo sample was greatly improved.

引用

页数：10

共 49 条

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