为可持续的纳米纤维素生产利用大麦的价值利用,通过亚临界性水解和HDES辅助加工
Dileswar Pradhan1,2,3, Swarna Jaiswal1,2,3, Brijesh K Tiwari4
1Centre for Sustainable Packaging and Bioproducts Research, Technological University Dublin-City Campus, Central Quad, Grangegorman, D07 ADY7 Dublin, Ireland.
Molecules (Basel, Switzerland)
|February 13, 2026
概括
本研究介绍了一种绿色方法,使用亚临界性水解和高能量密度溶剂 (HDES) 处理将大麦转化为纳米纤维素. 这种可持续的方法产生了适合生物基材料的高纯度纳米纤维素.
科学领域:
- 生物质的价值利用
- 纳米材料科学 纳米材料科学
- 绿色化学是一种绿色化学.
背景情况:
- 像大麦草这样的农业残留物丰富,但未得到充分利用.
- 开发可持续的方法将生物质转化为高价值产品至关重要.
- 纳米纤维素为先进材料应用提供独特的特性.
研究的目的:
- 研究一个集成的亚临界性水解和HDES辅助途径,用于大麦草纳米纤维素生产.
- 优化预处理条件,以便有效地分化生物质.
- 描述所产生的纳米纤维素的特性,并评估其适用于生物基材料的适用性.
主要方法:
- 在最佳条件下 (150巴,200°C,125分钟) 进行亚临界性水解,用于生物质分化.
- 从预处理的固体部分净化纤维素纤维.
- 高能量密度溶剂 (HDES) 处理,然后进行高强度超声波 (HIUS) 进行纳米纤维素生产.
主要成果:
- 在预处理过程中达到57.72%的半纤维素和82.69%的红素溶解.
- 获得的纤维素纤维具有41.97%的产量和87.87%的纯度.
- 生产的纳米纤维素 (NC-BTW-3),66%的颗粒小于100nm,具有良好的体稳定性 (泽塔电位-33.0mV).
结论:
- 综合性亚临界性水解和HDES辅助途径是大麦草增值的绿色和有效策略.
- 这种方法成功地从农业残留物中产生高价值的纳米纤维素.
- 由此产生的纳米纤维素适用于各种生物基材料应用.
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