A novel mesoporous lignin/silica hybrid from rice husk produced by a sol-gel method.
A novel mesoporous lignin/silica hybrid prepared from rice husks at different pH values was produced in situ using the sol-gel process. The optimum conditions for hybrid formation were 90 degrees C and pH 3 for 6h in the presence of 2 mol L(-1) H(2)SO(4). The lignin/silica ratio reached 2:3 (41.67% lignin, 58.33% silica). The hybrid with various pore structures was spherical with diameters of approximately 60 nm and a specific surface of 471.7 m(2)/g. Such lignin/silica hybrid material originating from rice husks can potentially be used to decontaminate environmental objects.
Qu
Yuning
Y
College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
Tian
Yumei
Y
Zou
Bo
B
Zhang
Jian
J
Zheng
Yunhui
Y
Wang
Lili
L
Li
Ying
Y
Rong
Chunguang
C
Wang
Zichen
Z
D000327:Adsorption; D001709:Biotechnology / Q000379:methods*; D005782:Gels; D006863:Hydrogen-Ion Concentration; D008031:Lignin / Q000096:biosynthesis*; D008956:Models, Chemical; D012275:Oryza / Q000737:chemistry*; D016062:Porosity; D012822:Silicon Dioxide / Q000378:metabolism*; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors
D005782:Gels; D012822:Silicon Dioxide; D008031:Lignin