?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=STUDI+PENDAHULUAN+KONVERSI+SELULOSA+MENJADI+GULA+ALKOHOL+MENGGUNAKAN+NANOKATALIS+NixFe2-xO4+(PRELIMINARY+STUDY+CELLULOSE+CONVERSION+TO+ALCOHOL+SUGAR+USED+NixFe2-xO4+NANOCATALYST)&rft.creator=Zainuri%2C+Rizki+Amalia&rft.subject=Q+Science+(General)&rft.subject=QD+Chemistry&rft.description=Telah+dilakukan+preparasi+dan+karakterisasi+katalis+NixFe2-xO4+melalui+metode+sol-gel+untuk+reaksi+konversi+selulosa.+Preparasi+katalis+dilakukan+melalui+langkah-langkah+pencampuran%2C+penguapan%2C+dan+kalsinasi.+Selanjutnya+dilakukan+karakterisasi+terhadap+katalis+yang+telah+terbentuk.+Proses+karakterisasi+katalis+meliputi+analisis+penentuan+keasaman+katalis+dengan+metode+gravimetri+dan+Fourier+Transform+Infra+Red+(FTIR)%2C+analisis+struktur+fasa+kristalin+katalis+dengan+metode+difraksi+sinar-X+(XRD)+dan+analisis+morfologi+permukaan+katalis+dengan+menggunakan+Scanning+Electron+Microscopy+(SEM).+Selanjutnya+telah+dilakukan+uji+aktivitas+katalitik+dalam+reaksi+konversi+selulosa+dengan+variasi+suhu+100%2C+120+dan+140+oC+selama+2+jam%2C+dan+hasil+dianalisis+menggunakan+Kromatografi+Cair+Kinerja+Tinggi+(KCKT).+Hasil+analisis+keasaman+katalis+dengan+metode+gravimetri+katalis+Ni0%2C8Fe1%2C2O4+memiliki+tingkat+keasaman+tertinggi+yaitu+10%2C6+mmol+piridin%2Fgram+katalis.+Hasil+analisis+keasaman+katalis+NixFe2-xO4+(x%3D+0%2C2%2C+0%2C5%2C+0%2C8+dan+1)+dengan+metode+FTIR+menunjukkan+bahwa+situs+asam+Lewis+lebih+dominan+dibandingkan+dengan+situs+asam+Br%C3%B8nsted-Lowry.+Hasil+analisis+difraksi+sinar-X+katalis+NixFe2-xO4+(x%3D+0%2C2%2C+0%2C5%2C+0%2C8+dan+1)+terdiri+dari+beberapa+fasa+kristalis+yakni+fasa+NiFe2O4%2C+fasa+Fe2O3+dan+fasa+NiO.+Hasil+analisis+morfologi+permukaan+katalis+NixFe2-xO4+(x%3D+0%2C5+dan+x%3D+1)+yang+dipreparasi+dapat+dikatakan+belum+homogen%2C+dimana+untuk+ukuran+katalis+(x%3D+0%2C5)+berukuran+%C2%B1+330-167+nm%2C+dan+katalis+(x%3D+1)+berukuran+%C2%B1+167-125+nm+oleh+karena+itu+ukuran+partikel+katalis+bervariasi+dan+belum+memiliki+keseragaman+di+setiap+sudut.+Hasil+analisis+KCKT+yang+dapat+mengkonversi+selulosa+menjadi+gula+alkohol+(sorbitol%2C+manitol%2C+dan+xylitol)+yaitu+katalis+NixFe2-xO4+dengan+variable+x%3D+0%2C5+pada+suhu+120+%EF%82%B0C+dan+variable+x%3D+1+pada+suhu+140+%EF%82%B0C.+(Preparation%2C+characterization+and+catalytic+test+for+cellulose+conversion+of+NixFe2-xO4+catalyst+has+been+studied.+Preparation+of+catalyst+is+made+by+some+steps+including+mixing%2C+evaporating%2C+and+calcinating.+Characterization+of+the+catalyst+involved+in+acid+sites+using+gravimetry+and+Fourier+Transform+Infra+Red+(FTIR)+methods%2C+crystalline+phases+using+X-ray+diffraction+(XRD)%2C+and+marphology+of+the+catalyst%E2%80%99s+surface+using+Scanning+Electron+Microscopy+(SEM).+Furthermore%2C+catalytic+tests+on+cellulose+conversion+reaction+is+done+by+varying+both+temperature+of+reaction+in+a+range+of+100%2C+120%2C+and+140+oC+and+time+of+reaction+in+2+hours+and+the+product+is+analyzed+by+High+Performance+Liquid+Chromatography+(HPLC).+Acid+content+analysis+using+gravimetric+method+indicated+that+Ni0.8Fe1.2O4+nanocatalyst+has+the+highest+acidity+of+10.6+mmole+pyridine%2Fg+catatlyst.+FTIR+analysis+demosntrated+from+catalyst+NixFe2-xO4+(x%3D+0.2%2C+0.5%2C+0.8+and+1)+that+Lewis+acid+sites+is+more+dominant+than+Br%C3%B8nsted+%E2%80%93+Lowry+acid+sites+in+the+three+nanocatalysts+investigated.+Then%2C+Diffractogram+analysis+said+that+catalyst+(x%3D+0.2%2C+0.5%2C+0.8+and+1)+consisted+of+NiFe2O4%2C+Fe2O3+and+NiO+crystalline+phases.+Surface+marphology+analysis+showed+that+NixFe2-xO4+(x%3D+0.5+and+x%3D+1)+nanocatalysts+are+not+completely+homogeneous%2C+with+particle+sizes+(x%3D+0.5)+ranging+between+330-167+nm+and+catalyst+(x%3D+1)+ranging+between+167-125+nm+of+because+proved+that+the+size+of+particles+is+varied+and+a+spherical+shape.+As+shown+in+catalytic+test%2C+it+can+be+said+that+catalyst+is+active+to+convert+celluose+into+alcohol+sugar+(sorbitol%2C+mannitol%2C+and+xylitol)+as+catalyst+NixFe2-xO4+(x%3D+0.5)+at+temperature+of+120+oC+and+variable+x%3D+1+at+temperature+of+140+oC.(&rft.publisher=Fakultas+MIPA&rft.date=2013-09-23&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F906%2F6%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F906%2F7%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F906%2F8%2FABTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F906%2F9%2FHALAMAN%2520MENGESAHKAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F906%2F10%2FHALAMAN%2520MENYETUJUI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F906%2F11%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F906%2F12%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F906%2F13%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.uni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