淀粉交联对用于溢油吸附的纤维素气凝胶性能的影响。

Influence of Starch Cross-Linking on the Performance of Cellulose Aerogels for Oil Spills Sorption.

作者信息

Espinosa Rafael Picazo, Uebe Jochen, Katarzyte Marija, Paulauskiene Tatjana

机构信息

Marine Research Institute, Klaipeda University, H. Manto 84, 92294 Klaipeda, Lithuania.

Engineering Department, Faculty of Marine Technology and Natural Sciences, Klaipeda University, Bijunu Str. 17, 91206 Klaipeda, Lithuania.

出版信息

Gels. 2025 May 24;11(6):386. doi: 10.3390/gels11060386.

DOI:10.3390/gels11060386

PMID:40558685

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12191776/

Abstract

Oil spills represent a significant environmental threat due to the toxicity of hydrocarbons, particularly in aquatic environments where oil rapidly spreads across the surface. Sustainable sorbents are needed for an efficient and eco-friendly response to oil spills. Cellulose aerogels produced from recycled paper and cardboard exhibit promising properties such as buoyancy, light weight, biocompatibility, and recyclability. Mechanical stability and reusability can be enhanced using cross-linkers such as starch. This study evaluated the impact of starch on cellulose aerogel morphology, sorption capacity for various petroleum products (crude oil, marine diesel, and lubricating oil), and reusability using scanning electron microscopy (SEM) and elemental mapping. Aerogels containing 0.5 and 1 wt% starch showed higher porosity, sorption capacity, and reusability. Starch did not affect hydrophobization or significantly alter nitrogen and carbon levels, indicating limited influence on surface chemistry and adsorption performance.

摘要

由于碳氢化合物的毒性，石油泄漏对环境构成重大威胁，特别是在石油会迅速在水面扩散的水生环境中。应对石油泄漏需要可持续的吸附剂，以便高效且环保地进行处理。由回收纸张和纸板制成的纤维素气凝胶具有一些有前景的特性，如浮力、轻质、生物相容性和可回收性。使用淀粉等交联剂可以提高其机械稳定性和可重复使用性。本研究通过扫描电子显微镜（SEM）和元素映射评估了淀粉对纤维素气凝胶形态、对各种石油产品（原油、船用柴油和润滑油）的吸附能力以及可重复使用性的影响。含有0.5 wt%和1 wt%淀粉的气凝胶显示出更高的孔隙率、吸附能力和可重复使用性。淀粉不会影响疏水化，也不会显著改变氮和碳的含量，表明其对表面化学和吸附性能的影响有限。