影响因子：8.758
DOI码：10.1021/acsami.4c22615
发表刊物：ACS Applied Materials & Interfaces
关键字：radiative cooling, bacterial cellulose-based composite film, cross-linked network structure, UV resistance, freshness preservation
摘要：Radiative cooling, a passive cooling technology, functions by reflecting the majority of solar radiation (within the solar spectrum of 0.3−2.5 μm) and emitting thermal radiation (within the atmospheric windows of 8−13 μm and 16−20 μm). Predominantly, synthetic polymers are effectively utilized for radiative cooling while posing potential environmental hazards due to their complex components, toxicity, or non biodegradation. Bacterial cellulose, a natural and renewable biopolymer, stands out due to its environmentally friendly, scalability, high purity, and significant infrared emissivity. In this work, we developed a bacterial cellulose-based composite film (BCF) with a cross-linked network structure by a facile agitation spraying method to achieve enhanced and sustainable radiative cooling performance. The BCF exhibited superior optical properties and environmental tolerance, with a notable infrared emissivity of 94.6%. As a result, the thermal emitter demonstrates a substantial subambient cooling capacity (11:00 to 13:00, maximum drop of 7.15 °C, average drop of 4.85 °C; 22:00 to 2:00, maximum drop of 2.7 °C, average drop of 2.32 °C). Additionally, the BCF maintained stable emissivity after 240 h of continuous UV irradiation. Furthermore, BCF can effectively preserve the freshness of fruits under intense solar irradiation. Hence, BCF with high radiative cooling performance presents a broad application prospect in building energy conservation, solar cells efficiency enhancement, and food transportation packaging.
第一作者：Yuan-Cheng Ding,Guo-Wei Tang
论文类型：期刊论文
通讯作者：Hao-Yu Zhao,赵浩雨
卷号：17
期号：4
页面范围：6857–6866
ISSN号：1944-8244
是否译文：否
收录刊物：SCI
发布刊物链接：https://doi.org/10.1021/acsami.4c22615
发表时间：2025-01-20