TY - JOUR
T1 - Brønsted acidic ionic liquid modified magnetic nanoparticle
T2 - An efficient and green catalyst for biodiesel production
AU - Wu, Zuowang
AU - Li, Zhong
AU - Wu, Gaoming
AU - Wang, Lele
AU - Lu, Shenqin
AU - Wang, Lei
AU - Wan, Hui
AU - Guan, Guofeng
PY - 2014/2/26
Y1 - 2014/2/26
N2 - Surface-functionalized magnetic nanoparticle supported dual Brønsted acidic ionic liquid was synthesized by immobilizing 1-(propyl-3-sulfonate) imidazolium hydrogen sulfate [SO3H-(CH2) 3-HIM][HSO4] onto the surface of Fe3O 4@SiO2 using 3-chloropropyltrimethoxysilane as the "linker". The structure of the catalyst was characterized by XRD, FT-IR, SEM, TEM, and VSM. The results demonstrated that the Fe3O 4 particle was well retained in the silica matrix, presenting a core-shell structure with strong magnetic responsiveness. Meanwhile, the ionic liquid was successfully immobilized on the support. The as-prepared catalyst could disperse well in the reactants and showed good performance in esterification of oleic acid with short-chain alcohols and transesterification of soybean oil. Moreover, the catalyst could be easily separated from products by additional magnetic force without obvious mass loss and maintain satisfactory catalytic activity after being recycled eight times.
AB - Surface-functionalized magnetic nanoparticle supported dual Brønsted acidic ionic liquid was synthesized by immobilizing 1-(propyl-3-sulfonate) imidazolium hydrogen sulfate [SO3H-(CH2) 3-HIM][HSO4] onto the surface of Fe3O 4@SiO2 using 3-chloropropyltrimethoxysilane as the "linker". The structure of the catalyst was characterized by XRD, FT-IR, SEM, TEM, and VSM. The results demonstrated that the Fe3O 4 particle was well retained in the silica matrix, presenting a core-shell structure with strong magnetic responsiveness. Meanwhile, the ionic liquid was successfully immobilized on the support. The as-prepared catalyst could disperse well in the reactants and showed good performance in esterification of oleic acid with short-chain alcohols and transesterification of soybean oil. Moreover, the catalyst could be easily separated from products by additional magnetic force without obvious mass loss and maintain satisfactory catalytic activity after being recycled eight times.
UR - http://www.scopus.com/inward/record.url?scp=84894794928&partnerID=8YFLogxK
U2 - 10.1021/ie4040016
DO - 10.1021/ie4040016
M3 - 文章
AN - SCOPUS:84894794928
SN - 0888-5885
VL - 53
SP - 3040
EP - 3046
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 8
ER -