生物启发的细菌诱导的CO2吸附用于现场木材矿化
Kunkun Tu1, Muze Han1,2, Jinjing Liu1,2
1Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China.
ACS applied materials & interfaces
|March 2, 2026
概括
这项研究引入了一种新型的,环保的木材阻燃剂,使用细菌沉碳酸. 矿化木材显示出更好的耐火性,并捕获二氧化碳,与可持续发展目标保持一致.
科学领域:
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
- 环境科学 环境科学
背景情况:
- 木材的易燃性限制了其使用,尽管木材是一种可持续材料.
- 目前的阻燃剂通常涉及有毒化学品或产生有害的副产品.
- 有效和环保的木材改造需要生物灵感解决方案.
研究的目的:
- 开发一种易于使用的现场方法,用于阻燃木材,使用微生物碳酸沉.
- 为了研究矿化木材的阻燃性能和二氧化碳封存潜力.
主要方法:
- 在 *Bacillus mucilaginosus* (B.m.) 的局部生长. 在木质多孔结构内.
- 使用细菌碳酸酶捕获大气中的二氧化碳并诱导CaCO3沉积.
- 使用形态和化学分析对矿化木材的表征.
主要成果:
- 在B.M.中. 显示出出色的湿透性和深入穿透到木结构.
- 在不改变外观的情况下,在木细胞光线内形成良好结晶的CaCO3.
- 显著提高火焰阻燃性,包括延迟分解,减少热释放和更快的自灭.
- 通过矿化过程实现了二氧化碳的封存.
结论:
- 微生物诱导的碳酸沉为木材提供了可持续和有效的阻燃修饰.
- 这种无浪费,节能的工艺提高了木材的消防安全,并有助于二氧化碳的捕获.
- 该方法在开发耐火木制品和支持零废弃物倡议方面具有广泛的潜力.
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