2016/01/07 by Huizhang Guo, Peter Fuchs, Étienne Cabane +5 · 1 citation
Earth and Planetary Sciences · Engineering · #Building materials and conservation #Surface Roughness and Optical Measurements #Wood Treatment and Properties
paper · pdf · doi:10.1515/hf-2015-0185
crossref issued 2016/01/07 · crossref published 2016/01/07 · crossref published-online 2016/01/07 · openalex publication_date 2016/01/07 · crossref created 2016/07/28 · crossref published-print 2016/08/01 · crossref deposited 2023/01/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/27 · crossref indexed 2026/07/27
Abstract One of the most significant limitations for a wider utilisation of the renewable and CO 2 -storing resource wood is its low ultraviolet (UV) light stability. The protection of the wood surface without altering its aesthetic appeal requires an optically transparent but UV protective coating which should be strongly attached to the rough and inhomogeneous substrate. For this purpose, ZnO nanostructures were deposited onto the wood surface via a chemical bath deposition process. The morphology of crystalline ZnO was controlled by aluminium nitrate or ammonium citrate in the growth step resulting in nanorod arrays or platelet structures, respectively. Detailed structural, chemical and mechanical characterisations as well as accelerated weathering exposure revealed the effective performance of the platelet structure, which formed a dense and thin ZnO coating on spruce. The total colour change (Δ E in the CIE system) was calculated to be 20.5 for unmodified wood, while it was about three for the modified samples after 4 weeks accelerated weathering test. Moreover, the ZnO coating also suppressed crack initiation and propagation indicating a substantial increase in durability.