?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=KONVERSI+NANOSELULOSA+MENJADI+GULA+ALKOHOL+%0D%0AMENGGUNAKAN+NANOFOTOKATALIS+2%25+V%2FLaCrO3+DI+BAWAH+%0D%0APENGARUH+IRRADIASI+SINAR+UV&rft.creator=HARIST+OKTAVIAN%2C+1517011088&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.description=Pada+penelitian+ini+telah+dilakukan+konversi+nanoselulosa+menjadi+gula+alkohol+%0D%0Amenggunakan+nanokatalis+2%25+V%2FLaCrO3+yang+dibantu+dengan+irradiasi+sinar+UV.+%0D%0ANanoselulosa+yang+dipreparasi+memiliki+indeks+kristalinitas+sebesar+46%2C6%25+dan+%0D%0Aukuran+partikel+sebesar+13%2C30+nm.+Nanokatalis+2%25+V%2FLaCrO3+dipreparasi+dengan+%0D%0Ametode+sol-gel+yang+kemudian+diikuti+dengan+impregnasi+logam+vanadium+%0D%0Amenggunakan+pektin+sebagai+agen+pengemulsi.+Preparasi+nanokatalis+dilakukan+%0D%0Adengan+kalsinasi+pada+temperatur+700+0C.+Hasil+analisis+nanokatalis+menggunakan+%0D%0AXRD+menunjukkan+bahwa+nanokatalis+didominasi+fasa+kristalin+LaCrO3+dan+LaVO3+%0D%0Adengan+ukuran+kristal+48%2C68+nm.+Berdasarkan+hasil+SEM+dan+TEM%2C+terjadi+%0D%0Aaglomerasi+nanokatalis+dan+persebaran+partikel+nanokatalis+tidak+homogen+serta+%0D%0Adidapat+ukuran+partikel+nanokatalis+sebesar+46%2C95+nm.+Hasil+analisis+menggunakan+%0D%0ADRS+UV-Vis+menunjukkan+bahwa+energi+celah+pita+nanokatalis+sebesar+2%2C5+eV.+%0D%0AHasil+karakterisasi+FTIR+menunjukkan+adanya+interaksi+antara+nanokatalis+dan+%0D%0Ananoselulosa+ditandai+dengan+munculnya+vibrasi+ulur+C-O-C+dari+ikatan+%CE%B2-(1%2C4)+%0D%0Aglikosida+pada+daerah+1028%2C7+cm-1%0D%0A.+Uji+DNS+mengindikasikan+bahwa+hasil+terbaik+%0D%0Adiperoleh+pada+waktu+konversi+90+menit+dengan+konsentrasi+glukosa+sebesar+108%2C4+%0D%0Appm.+Analisis+menggunakan+KCKT+menunjukkan+bahwa+nanokatalis+telah+aktif+%0D%0Adalam+mengkonversi+nanoselulosa+menjadi+gula+pereduksi+tetapi+belum+optimal+%0D%0Auntuk+mengkonversi+nanoselulosa+menjadi+gula+alkohol.%0D%0AKata+Kunci+%3A+Nanokatalis%2C+nanoselulosa%2C+gula+alkohol%2C+irradiasi+sinar+UV%2C+konversi%0D%0A%0D%0AIn+this+research%2C+the+conversion+of+nanocellulose+into+alcohol+sugar+using+%0D%0A2%25+V%2FLaCrO3+nanocatalyst+was+assisted+with+UV+light+irradiation.+The+prepared+%0D%0Ananocellulose+has+a+crystallinity+index+of+46.6%25+and+a+particle+size+of+13.30+nm.+%0D%0ANanocatalyst+2%25+V%2FLaCrO3+was+prepared+by+the+sol-gel+method+followed+by+%0D%0Aimpregnation+of+the+vanadium+metal+using+pectin+as+an+emulsifying+agent.+%0D%0APreparation+of+nanocatalysts+was+done+by+calcination+at+a+temperature+of+700+0C.+%0D%0AThe+results+of+the+nanocatalyst+analysis+using+XRD+showed+that+the+nanocatalyst+%0D%0Awas+dominated+by+the+crystalline+phase+LaCrO3+and+LaVO3+with+a+crystal+size+of+%0D%0A48.68+nm.+Based+on+SEM+and+TEM+results%2C+nanocatalyst+agglomeration+occurs+and+%0D%0Athe+distribution+of+nanocatalyst+particles+is+not+homogeneous+and+the+nanocatalyst+%0D%0Aparticle+size+is+46.95+nm.+The+analysis+using+DRS+UV-Vis+showed+that+the+band%0D%0Agap+energy+of+the+nanocatalyst+is+2.5+eV.+The+results+of+FTIR+characterization+%0D%0Ashowed+an+interaction+between+nanocatalysts+and+nanocelluloses+characterized+by+%0D%0Athe+emergence+of+stretching+C-O-C+vibrations+from+the+%CE%B2-+(1.4)+glycosidic+bond+in+%0D%0Athe+area+of+1028.7+cm-1%0D%0A.+The+DNS+test+indicated+that+the+best+results+were+obtained+%0D%0Aat+a+90+minute+conversion+time+with+a+glucose+concentration+of+108.4+ppm.+Analysis+%0D%0Ausing+HPLC+showed+that+nanocatalysts+have+been+active+in+converting+%0D%0Ananocellulose+into+reducing+sugars+but+it+is+not+yet+optimal+for+converting+%0D%0Ananocelluloses+into+alcohol+sugars.%0D%0AKeyword+%3A+Nanocatalyst%2C+nanocellulose%2C+alcohol+sugar%2C+irradiation+of+UV+light%2C+%0D%0Aconversion%0D%0A%0D%0A&rft.publisher=Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F56739%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F56739%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F56739%2F3%2FSKRIPSI%2520FULL.pdf&rft.identifier=++HARIST+OKTAVIAN%2C+1517011088++(2019)+KONVERSI+NANOSELULOSA+MENJADI+GULA+ALKOHOL+MENGGUNAKAN+NANOFOTOKATALIS+2%25+V%2FLaCrO3+DI+BAWAH+PENGARUH+IRRADIASI+SINAR+UV.++Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F56739%2F