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Development of agri-biomass based lignin derived zinc oxide nanocomposites as promising UV protectant-cum-antimicrobial agents.
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2019-11-25 , DOI: 10.1039/c9tb01569h
Ravneet Kaur 1 , Neeraj Singh Thakur 2 , Sanjam Chandna 1 , Jayeeta Bhaumik 2
Affiliation  

Agri-biomass derived lignin is one of the most abundant natural nontoxic organic polymers. However, a major portion of lignin is underutilized, which is being left in the fields or thrown into rivers, causing waste accumulation. Utilization of the low-cost biomass-derived lignin serves a dual purpose by reducing agri-waste and by converting it into value-added materials. Here we describe the valorization of agri-biomass based lignin via its direct utilization in the green and one-step synthesis of zinc oxide nanocomposites. Lignin offered an easy and sustainable synthesis of nanocomposites in a water–ethanol mixture without the need to use any toxic material. The lignin derived nanomaterials showed excellent potential as antioxidant, UV-blocking and antimicrobial agents due to the synergistic effect of lignin and zinc oxide. Further, these nanocomposites were incorporated as an additive into a commonly used body cream to impart UV-blocking and antimicrobial properties. This one-step, cost-effective and green synthesis technique of lignin derived zinc oxide nanocomposites not only contributes to agro-waste reduction, but at the same time helps in the production of value-added materials.

中文翻译:

农业生物质基木质素衍生的氧化锌纳米复合材料的开发作为有前途的紫外线保护剂和抗菌剂。

农业生物质衍生的木质素是最丰富的天然无毒有机聚合物之一。然而,木质素的大部分未被充分利用,被留在田间或扔进河里,导致废物堆积。利用低成本的生物质来源的木质素具有双重目的,它可以减少农业废料并将其转化为增值材料。在这里,我们描述的农业生物质的木质素的物价稳定措施通过它直接用于绿色和一步合成氧化锌纳米复合材料。木质素可以在水-乙醇混合物中轻松,可持续地合成纳米复合材料,而无需使用任何有毒物质。木质素衍生的纳米材料由于木质素和氧化锌的协同作用,显示出极好的潜力作为抗氧化剂,紫外线阻滞剂和抗菌剂。此外,将这些纳米复合材料作为添加剂掺入到常用的润肤霜中,以赋予紫外线阻隔和抗菌性能。木质素衍生的氧化锌纳米复合材料的这一一步,经济高效的绿色合成技术不仅有助于减少农业废料,而且还有助于生产增值材料。
更新日期:2019-11-25
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