Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
Int J Biol Macromol. 2022 Sep 30;217:312-320. doi: 10.1016/j.ijbiomac.2022.07.046. Epub 2022 Jul 11.
Lignin is a renewable raw material with excellent adsorption, biodegradability, and non-toxicity. As a new, green nanomaterial, lignin nanoparticles (LNPs) have been explored as high-value renewable materials for applications in many fields. Herein, we provide a simple, rapid approach for the fabrication of size-controlled LNPs using a titrimetric nanoprecipitation method. The prepared LNPs were formed through a layer-by-layer self-assembly approach from inside to outside based on π-π interactions and had spherical shapes with porous surfaces and particle sizes from 272.0 to 915.4 nm. The average particle size of LNPs varied with stirring speed and decreased as the volume of deionized water increased. Compared with those of the original lignin, the chemical structural characteristics of LNPs did not change significantly. The proposed scheme for the preparation of LNPs is simple, inexpensive, and possesses the properties of both lignin and nanomaterials. The sizes of LNPs were controlled. Therefore, this is a good scheme for high-value applications of lignin.
木质素是一种可再生的原料，具有良好的吸附性、生物降解性和无毒特性。作为一种新型的绿色纳米材料，木质素纳米颗粒（LNP）已被探索作为高附加值的可再生材料，应用于许多领域。在这里，我们提供了一种简单、快速的方法，通过滴定纳米沉淀法制备尺寸可控的 LNP。所制备的 LNP 通过从内到外的层层自组装形成，基于π-π相互作用，具有多孔表面的球形形状，粒径为 272.0 至 915.4nm。LNP 的平均粒径随搅拌速度的变化而变化，随去离子水体积的增加而减小。与原始木质素相比，LNP 的化学结构特征变化不大。所提出的制备 LNP 的方案简单、廉价，同时具有木质素和纳米材料的特性。LNP 的尺寸可以得到控制。因此，这是一个实现木质素高附加值应用的好方案。
