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微结构依赖的CO2响应微乳液,用于深度清洁油污染土壤
Lingfei Liu1, Mingshan Zhang2, Yi Lu3
1Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen, 518055, China.
Chemosphere
|December 13, 2023
概括
对二氧化碳有反应性的微乳液 (ME) 显示出对石油回收的前景. 油在水 (O/W) 微乳液是最佳的,因为它们的反应性质,提高土壤清洁和石油回收效率.
科学领域:
- 合体和表面科学科学
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
背景情况:
- 对二氧化碳敏感的微乳液 (ME) 是石油回收和土壤整治的关键.
- 了解微结构响应 (O/W,BC,W/O) 对ME应用至关重要.
- 纳酸 (NAs) 和四乙烯胺 (TEPA) 形成了新的伪双胞胎表面活性剂.
研究的目的:
- 研究不同ME微结构的二氧化碳反应能力.
- 确定最佳的ME微结构,以提高石油回收和土壤清洁.
- 为在工业应用中设计CO2响应型ME提供指导.
主要方法:
- 实验设计和粗粒度分子动态模拟.
- 使用NA,TEPA,二二硫酸 (DBSA) 和butanol形成ME.
- 评估ME微结构对CO2触发的反应.
主要成果:
- 油入水 (O/W) MEs表现出最佳的二氧化碳反应能力.
- 油中的水 (W/O) MEs表现出微弱或没有二氧化碳反应能力.
- O/W MEs表现出更高的清洁效率和从受污染的土壤中回收石油.
结论:
- O/W ME的响应性与质子迁移和无质子NA离子相互作用有关.
- 高粘度和强烈的油-NA相互作用限制了W/O ME的响应性.
- 这项研究指导了为各种工业用途量身定制的二氧化碳响应型ME的设计.
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