PENG Li, LIU Changjian, LIU Baijun, et al. Steam explosion and esterification modification of rice straw for oil spill absorption material[J]. CIESC Journal, 2015, (5): 1854-1860.
PENG Li, LIU Changjian, LIU Baijun, et al. Steam explosion and esterification modification of rice straw for oil spill absorption material[J]. CIESC Journal, 2015, (5): 1854-1860.DOI: 10.11949/j.issn.0438-1157.20141734.
A natural organic oil spill adsorption material was developed by steam explosion and esterification modification of rice straw. The oil-absorption capacity and water-absorption capacity of the raw rice straw were 5.66 g·g-1 and 7.59g·g-1
respectively. The conditions of esterification modification of rice straw were optimized. The optimal reaction temperature
catalyst concentration and reaction time were 80℃
0.75%
6 h
respectively. The oil-absorption capacity and water-absorption capacity of the modified rice straw were 8.54 g·g-1 and 0.10 g·g-1
respectively. Furthermore
the rice straw before and after modification were characterized by BET
XRD
FT-IR. The modified rice straw had larger pore diameter after steam explosion
appearance of non-crystallizing state and acetyl group of characteristic peak after esterification
which proved the feasibility of esterification modification of rice straw.