PHOTOCATALYTIC DEGRADATION OF ALKALI LIGNIN USING TiO2/H2O2

摘要：

　　As an important aromatic biopolymer in biomass and a hardly degradable component in pulp and paper effluent,lignin is expected to be degraded under control at mild temperatures for both productions of small aromatic compounds and reductions of effluent pollutions.Photocatalytic degradation of lignin is considered as an efficient and promising technology.Herein,TiO2/H2O2 was selected as the photocatalytic system.The photocatalytic degradation experiment of alkali lignin was carried out under visible-near infrared light irradiation and the temperature was controlled at 70℃.The alkali lignin and its photodegradation products were characterized by FIIR,1H-NMR and GC-MS.It was found that the alkali lignin can be highly photodegraded under visible light with the H2O2 existed,and depolymerized into small molecular chemicals such as guaiacol and vanillic alcohol.

作者: Jun Chen Zhenzhen Li Wenxia Liu Zhuozhuo Qin Huabin Chen

作者单位: Key Laboratory of Pulp and Paper Science and Technology(Ministry of Education),Qilu University of Technology,Jinan,Shandong 250353,China

会议类型: 国际会议

会议名称: 第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)

会议地点: 广州

会议语种:英文

页码: 1-4

在线出版日期: 2016-11-07（万方平台首次上网日期，不代表论文的发表时间）