文献类型：期刊文献

英文题名：Growth of high-density ZnO nanorods on wood with enhanced photostability, flame retardancy and water repellency

作者：Kong, Lizhuo[2] Tu, Kunkun[2] Guan, Hao[2] Wang, Xiaoqing[1,2]

第一作者：Kong, Lizhuo

通信作者：Wang, XQ[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry New Technol, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Xiangshan Rd, Beijing 100091, Peoples R China

年份：2017

卷号：407

起止页码：479-484

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20171003427233);Scopus(收录号：2-s2.0-85014666042);WOS:【SCI-EXPANDED(收录号:WOS:000399507700061)】；

基金：This work was financially supported by the Grant for National Non-profit Research Institutions of CAF (CAFYBB2016SY025) and the National Natural Science Foundation of China (NSFC grants 31570554).

语种：英文

外文关键词：Wood; Zinc oxide; Nanorod arrays; Photostability; Flame retardancy; Water repellency

摘要：Zinc oxide (ZnO) nanorod arrays were successfully assembled on the wood surface in situ via a two-step process consisting of formation of ZnO seeds and subsequent crystal growth under hydrothermal conditions at a low temperature. The morphology and crystalline structure of the formed ZnO nanorods were studied by field-emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). Highly dense and uniform arrays of ZnO nanorods with well-defined hexagonal facets were generated on the wood surface by tuning the concentration of the ZnO growth solution during the hydrothermal treatment. Accelerated weathering tests indicated that the assembled ZnO nanorod arrays were highly protective against UV radiation and greatly enhanced the photostability of the coated wood. Meanwhile, the ZnO nanorod-coated wood can withstand continuous exposure to flame with only minor smoldering in contrast with the pristine wood catching fire easily and burning rapidly. Moreover, when further modified with low-surface-energy stearic acid, the ZnO nanorod decorated wood surface can be transformed into a superhydrophobic surface, with a water contact angle (CA) of similar to 154. Such ZnO nanorod-modified woods with enhanced photostability, flame retardancy and water repellency offer an interesting alternative to conventional wood preservation strategies, highlighting their potential applications in some novel wood products. (C) 2017 Elsevier B.V. All rights reserved.