连续的素纳米转化 - - 工艺设计和控制
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Updated: Oct 20, 2026

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Fractionation of Lignocellulosic Biomass using the OrganoCat Process
Published on: June 5, 2021
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Sílvia Pérez-Rafael1, Guillem Ferreres1, Rudolf W Kessler2
1Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, Terrassa 08222, Spain.
Ultrasonics sonochemistry
|July 2, 2023
概括
这项研究开发了一种环保的声化学方法,用工业废物制造素纳米粒子 (LigNPs). 优化的参数,如宁度和超声波时间,在材料应用中产生较小的LigNPs.
科学领域:
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 丰富的可再生芳香聚合物 - - 氨酸 - - 尚未得到充分利用,只有不到5%的工业废物以其宏分子形式被重新利用.
- 素的现有应用包括添加剂,稳定剂,分散剂和表面活性剂.
- 人们对利用红素作为一种可持续的替代石油化学品和产品的替代品越来越感兴趣.
研究的目的:
- 开发一种环保的连续声化学纳米转化工艺,用于再利用工业素废弃物.
- 为了获得高度的素纳米粒子 (LigNPs) 分散,用于增值材料应用.
- 为了建模和控制大规模的超声波辅助素纳米转化过程.
主要方法:
- 实验的两级因数设计 (DoE) 被实施,以优化超声波 (US) 振幅,流速和素度.
- 动态光散射 (DLS) 和UV-Vis光谱法用于监测粒子大小,多分散性和声化学过程.
- 响应表面分析 (RSA) 用于分析数据和建模纳米转变.
主要成果:
- 在超声波处理的前20分钟内,观察到红素分散的显著颗粒大小减少.
- 宁度和超声波时间被确定为实现较小纳米粒子 (NP) 的关键因素.
- 流速和US振幅之间的相互作用影响了粒子大小,在高振幅/低流速或反之处获得较小的LigNPs.
结论:
- 该研究成功展示了一种高效和环保的声化学方法,用于生产素纳米粒子 (LigNPs).
- 开发的DoE和RSA模型允许预测和控制LigNP大小和多分散性.
- 紫外线-Vis光谱轨迹为纳米转化过程的在线监测提供了一个潜在的方法,为可扩展的应用铺平了道路.
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