کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6631231 | 1424940 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lipase immobilization on amino-silane modified superparamagnetic Fe3O4 nanoparticles as biocatalyst for biodiesel production
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, superparamagnetic Fe3O4 nanoparticles were synthesized by chemical co-precipitation using ionic liquid of 1-Butyl-3-methylimidazolium tetrafluoroborate ([BMIN]BF4) as templates. Then, the magnetic Fe3O4 nanoparticles were treated with 3-aminopropyltriethoxysilane (APTES) and obtain the surface amino-functionalized magnetic nanoparticles (APTES-Fe3O4) were used as immobilization material. Lipase was covalently bound to the APTES-Fe3O4 magnetic nanoparticles by using glutaraldehyde as a coupling reagent. A fatty acid methyl ester (FAME) conversion of 89.4% could be achieved by lipase immobilized on APTES-Fe3O4 magnetic nanoparticles under optimized conditions of methanol-oil molar ratio of 6:1, with a catalyst dose of 20%, 2% water content and 250â¯rpm agitation speed at 45â¯Â°C for 24â¯h. The FAME conversion remained greater than 70% even after reusing the catalyst for 5 reactions. In addition, the lipases immobilized on APTES-Fe3O4 magnetic nanoparticles could be recovered easily by external magnetic field for further use.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 224, 15 July 2018, Pages 774-782
Journal: Fuel - Volume 224, 15 July 2018, Pages 774-782
نویسندگان
Changlin Miao, Lingmei Yang, Zhongming Wang, Wen Luo, Huiwen Li, Pengmei Lv, Zhenhong Yuan,