?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=KONVERSI+NANOSELULOSA+MENJADI+GULA+ALKOHOL+DARI+LIMBAH+KULIT+PISANG+KEPOK+(Musa+paradisiaca+L.)+MENGGUNAKAN+NANOKOMPOSIT+NiFe2O4%2FnGO+DIIRADIASI+DI+BAWAH+SINAR+UV&rft.creator=Iin+%2C+Indriani+Sibagariang&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=660+Teknik+kimia&rft.description=Pada+penelitian+ini+telah+dilakukan+preparasi+nanokatalis+NiFe2O4+menggunakan+metode+sol+gel+dan+preparasi+nGO+menggunakan+metode+Hummers+termodifikasi.+Diperoleh+ukuran+partikel+dari+masing-masing+preparasi+yaitu+sebesar+20%2C42+dan+13%2C37+nm.+Preparasi+nanokomposit+NiFe2O4%2FnGO+dilakukan+menggunakan+metode+impregnasi+dengan+bantuan+alat+ultrasonic+cleaner+dengan+perbandingan+massa+masing-masing+0%2C125%2F1%3B+0%2C25%2F1+dan+0%2C5%2F1.+Analisis+X-Ray+Diffraction+(XRD)+menunjukkan+nanokomposit+berukuran+20%2C79%2C+24%2C95+dan+31%2C21+nm.+Analisis+Diffuse+Reflectance+Spectroscopy+(DRS)+diperoleh+nilai+energi+band+gap+masing-masing+nanokomposit+sebesar+1%2C67%3B+1%2C74+dan+1%2C89+eV.+Analisis+Scanning+Electron+Microscope+(SEM)+menunjukkan+terjadinya+aglomerasi+pada+permukaan+nanokomposit+NiFe2O4%2FnGO.+Nanoselulosa+telah+dipreparasi+menggunakan+metode+delignifikasi%2C+bleaching+dan+hidrolisis+asam+sehingga+diperoleh+nanoselulosa+berukuran+16%2C5+nm+dengan+indeks+kristalinitas+sebesar+30%2C02%25.+Nanoselulosa+yang+dihasilkan+dikonversi+menjadi+gula+alkohol+menggunakan+nanokomposit+NiFe2O4%2FnGO+dibawah+sinar+Ultraviolet+disertai+aliran+gas+H2+dengan+variasi+waktu+60%2C+120%2C+180%2C+240+dan+300+menit.+Konsentrasi+gula+pereduksi+larutan+hasil+konversi+tertinggi+pada+variasi+nanokomposit+0%2C125%2F1+dengan+waktu+konversi+selama+120+menit+sebesar+80%2C+24+ppm.+Analisis+Kromatografi+Cair+Tingkat+Tinggi+(KCKT)+menunjukkan+nanokomposit+NiFe2O4%2FnGO+mampu+mengkonversi+nanoselulosa+menjadi+gula+alkohol+sorbitol+dengan+konsentrasi+24+ppm.%0D%0AKata+kunci%3A+nanokomposit%2C+nanoselulosa%2C+sorbitol%2C+Iradiasi+sinar+UV.%0D%0A%0D%0A%0D%0AIn+this+research%2C+the+preparation+of+NiFe2O4+nanocatalyst+using+sol+gel+method+and+preparation+of+nGO+using+modified+Hummers+method+were+conducted.+The+particle+size+obtained+of+these+preparation+are+20.42+and+13.37+nm%2C+respectively.+Furthermore%2C+the+preparation+of+NiFe2O4%2FnGO+nanocomposites+was+carried+out+using+the+impregnation+method+with+the+help+of+an+ultrasonic+cleaner+with+a+mass+ratio+of%3B+0.25%2F1+and+0.5%2F1+respectively.+X-Ray+Difraction+(XRD)+analysis+showed+the+particle+size+of+nanocomposite+were+20.79%2C+24.95+and+31.21+nm.+The+band+gap+energy+obtained+using+Diffuse+Reflectance+Spectroscopy+(DRS)+for+each+nanocomposite+are+1.67%2C+1.74+and+1.89+eV.+Scanning+Electron+Microscope+(SEM)+analysis+showed+agglomeration+on+the+surface+of+NiFe2O4%2FnGO+nanocomposite+with+the+ratio+of+0.125%2F1.+Nanocellulose+was+prepared+using+delignification%2C+bleaching+and+acid+hydrolysis+methods+and+obtained+16.5+nm+particle+size+with+a+30.02%25+crystallinity+index.+Then%2C+nanocellulose+was+converted+to+sugar+alcohol+using+NiFe2O4%2FnGO+nanocomposite+under+ultraviolet+light+accompanied+by+H2+gas+flow+with+time+variations+of+60%2C+120%2C+180%2C+240+and+300+minutes.+The+highest+concentration+of+reducing+sugar+product+is+obtained+at+80.24+ppm+using+0.125%2F1+nanocomposite+catalyst%2C+and+120+minutes+exposure+time.+High+Performance+Liquid+Chromatography+(HPLC)+analysis+showed+that+NiFe2O4%2FnGO+nanocomposite+was+able+to+convert+nanocellulose+into+sorbitol+with+a+concentration+of+24+ppm.%0D%0AKeywords%3A+nanocomposite%2C+nanocellulose%2C+sorbitol%2C+UV+irradiation%0D%0A%0D%0A&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2023-03-27&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F70934%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F70934%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F70934%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Iin+%2C+Indriani+Sibagariang++(2023)+KONVERSI+NANOSELULOSA+MENJADI+GULA+ALKOHOL+DARI+LIMBAH+KULIT+PISANG+KEPOK+(Musa+paradisiaca+L.)+MENGGUNAKAN+NANOKOMPOSIT+NiFe2O4%2FnGO+DIIRADIASI+DI+BAWAH+SINAR+UV.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C++UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F70934%2F