细菌纳米纤维素水凝用于从大理石中清除铜污点的绿色清洁
Erica Sonaglia1, Emily Schifano2, Mohammad Sharbaf1
1Department of Chemical Engineering Materials and Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy.
Gels (Basel, Switzerland)
|February 23, 2024
概括
这项研究引入了带有乙烯基胺酸 (EDTA) 的细菌纳米纤维素 (BC) 水凝,用于清除石头上的铜腐蚀. 这种可持续的方法有效地去除污点,为文化遗产保护提供了一种绿色的替代方案.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 保护科学 保护科学
背景情况:
- 铜腐蚀会导致文化遗产石材的变色,需要有效的清洁方法.
- 传统的清洁技术往往是昂贵的,耗时的,并且可能会损坏原始材料.
- 装有合剂的合成水凝,如乙烯基胺三酸 (EDTA),显示出有前途,但缺乏可持续性.
研究的目的:
- 探索细菌纳米纤维素 (BC) 作为一种可持续的,可生物降解的水凝,用于清除铜腐蚀.
- 为了研究含有EDTA的BC水凝用于清除石灰岩上的铜污点的有效性.
- 评估BC水凝作为石材保护中的绿色替代品.
主要方法:
- 使用FE-SEM,XRD,ATR-FTIR,TG-DSC和拉力测试进行BC水凝的表征.
- 将装有EDTA的BC水凝应用于带有铜污染的大理石.
- 使用微拉曼光谱和色度分析评估清洗效果.
主要成果:
- BC水凝呈现出纳米纤维结构,高结晶度,纯度和合适的机械性能.
- 装有EDTA的BC水凝有效地在120分钟内从大理石中去除了铜污点.
- 开发的水凝证明了对遗产石材保护的重大清洁潜力.
结论:
- 细菌纳米纤维素 (BC) 是一种可行的,环保的替代合成水凝,用于遗产保护.
- 装有EDTA的BC水凝为清除石头上的铜腐蚀提供了有效和可持续的解决方案.
- 这项研究支持将绿色方法纳入文化遗产的保护中.
相关概念视频
01:27Microbial Leaching
227
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
227
01:24Microbial Corrosion
93
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
93