摘要
简单介绍了多金属氧酸盐具有的结构和特性,重点概述了其在纸浆漂白中的应用研究情况,主要包括多金属氧酸盐在氧脱木素中的催化作用及催化机理,多金属氧酸盐催化的H2O2漂白以及多金属氧酸盐在漆酶介体体系、电化学介体脱木素中的应用进展。
The characteristics of polyoxometalates （POM） and its application in pulp delignification were summarized in this paper. The details were concentrated on application of polyoxometalates in catalyzed oxygen delignification, catalyzed H2O2 bleaching, laccase mediated system delignification and electrochemically mediated delignification. The results showed that application of polyoxometalates in oxygen delignification could effectively slow down the depolymerization and increase the removal of residual lignin. As catalyzer, POM could increase the consumption of H2O2 leading to higher brightness. As mediator, POM could transfer the electrons from residual lignin to oxidant both in the Lacease/POM mediated system and electrochemically mediated deligeilication.
出处
《中国造纸》
CAS
北大核心
2006年第3期47-51,共5页
China Pulp & Paper
关键词
多金属氧酸盐
漂白
催化氧脱木素
催化H2O2漂白
介体
polyoxometalates
pulp bleaching
catalyzed oxygen delignitication
catalyzed H2O2 bleaching
mediator
