茶多酚改性木质素磺酸钠制备木质素基水凝胶及其表征
摘 要
木质素磺酸盐是造纸黑液中的主要产物之一，会造成严重的环境污染。但经过科学的处理方法加以利用，不仅有效减少了造纸过程中带来的严重污染，而且变废为宝，节省大量资源提高经济效应。
木质素磺酸盐由于其自身结构的特殊性可以被制成凝胶。本实验以木质素磺酸钠为主体，进行酚化改性，制得木质素基水凝胶，研究其对重金属离子的吸附。
关键词：木质素、水凝胶、磺酸钠、吸附、重金属离子
Tea polyphenols modified lignin sulfonic acid sodium for preparation and characterization of lignin based hydrogels
ABSTRACT
Lignosulfonate is one of the main products in the black liquor of paper making, which can cause serious environmental pollution. But after a scientific approach to use, not only effectively reduce the papermaking process to bring serious pollution, and turning waste into treasure, save a lot of resources to improve economic efficiency.
Lignosulfonates can be made into gels due to their specific structure. In this study, sodium lignosulfonate as the main body, the phenolic modification, obtained in the lignin-based hydrogel, to study its heavy metal ions adsorption.
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