从粉和玉米茎生物质中比较提取和表征纤维素纳米结构
Edwin Makhado1, Wilson M Seleka1, Louisah Mahlaule Glory1
1Nanotechnology Research Lab, Department of Chemistry, School of Physical and Mineral Sciences, University of Limpopo (Turfloop), Polokwane, Sovenga, 0727, South Africa.
International journal of biological macromolecules
|September 24, 2025
概括
农业废物可以转化为有价值的纤维素纳米纤维和纳米晶体. 这些纳米材料为废物管理和开发先进的生物制品提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
- 生物技术是生物技术.
背景情况:
- 农业废物是一个重大的环境挑战.
- 废物流的价值化对于循环经济至关重要.
- 纳米材料为各种应用提供独特的特性.
研究的目的:
- 将农业废物转化为纤维素纳米材料.
- 为了描述纤维素纳米纤维和纳米晶体.
- 评估它们对可持续应用的潜力.
主要方法:
- 从农业废物中化学提取纤维素纳米纤维和纳米晶体.
- 使用FTIR,XRD,SEM,TEM和TGA进行表征.
- 对结晶性,形态,热稳定性和泽塔潜力的分析.
主要成果:
- 纤维素纳米纤维和纳米晶体已经成功生产出来.
- XRD证实了纤维素I和Iβ结构具有高结晶度指数 (74.3%和66.8%).
- 与纳米晶体相比,纳米纤维显示出更高的热稳定性和更大的负泽塔潜力.
结论:
- 农业废物是生产高价值纤维素纳米材料的可行原料.
- 这些纳米材料具有适用于生物复合材料,薄膜和水凝的特性.
- 该研究支持推进可持续的循环生物经济.
相关概念视频
01:02Role of Microtubules in Cell Wall Deposition
3.0K
Microtubules are small hollow tubes in eukaryotic cells. The cell wall microtubules are polymerized dimers of two globular proteins, α-tubulin and β-tubulin, two globular proteins. With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton. They help the cell resist compression and provide a track along which vesicles move through the cell or pull replicated chromosomes to opposite ends of a dividing cell. Microtubules go through quick cycles of...
3.0K
01:15Cellulose and Pectic Polysaccharides
4.6K
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...
As a cell matures, its cell wall specializes according to its type. For example, the...
4.6K