?url_ver=Z39.88-2004&rft_id=1817011006&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=MODIFIKASI+BIOMASSA+ALGA+Sargasssum+sp.+DENGAN+SURFAKTAN%0D%0AHEXADECYLTRIMETHYLAMMONIUM+BROMIDE+(HDTMA-Br)%0D%0ASEBAGAI+ADSORBEN+METILEN+BIRU+DAN+COOMASSIE+BRILLIANT%0D%0ABLUE+DALAM+LARUTAN&rft.creator=Khairunisa%2C+1817011006&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.description=Pada+penelitian+ini+telah+dilakukan+modifikasi+biomassa+alga+Sargassum+sp.%0D%0Amenggunakan+surfaktan+Hexadecyltrimethylammonium+Bromide+(HDTMA-Br)%0D%0Ayang+bertujuan+mengubah+permukaan+alga+yang+bermuatan+anionik+menjadi+lebih%0D%0Aparsial+positif.+Adsorben+yang+dihasilkan+adalah+alga%2C+alga-Na%2C+dan+alga-HDTMA%0D%0Auntuk+mengadsorpsi+metilen+biru+dan+CBB.+Karakterisasi+material+adsorben%0D%0Adilakukan+menggunakan+FTIR+dan+SEM-EDX.+Karakterisasi+FTIR+menunjukkan%0D%0Aadanya+gugus+fungsi+O-Na+(1419%2C61+cm-1)+pada+alga-Na+dan+adanya+C-H+dari%0D%0Akelompok+metil+surfaktan+HDTMA+(1465%2C90+cm-1)+pada+alga-HDTMA.%0D%0AKarakterisasi+SEM+menunjukkan+bahwa+permukaan+adsorben+alga-Na+terdapat%0D%0Abutiran+halus+yang+mengindikasikan+keberadaan+Na%2C+sedangkan+pada+alga-%0D%0AHDTMA+terdapat+butiran+lengket+yang+menandakan+keberadaan+HDTMA.%0D%0ASpektrum+EDX+menunjukkan+adanya+Na+dan+Br+pada+alga-Na+dan+alga-HDTMA.%0D%0AHasil+uji+adsorpsi+menunjukkan+bahwa+adsorpsi+metilen+biru+optimum+pada+pH+6%0D%0A(alga%2C+alga-Na)+dan+5+(alga-HDTMA)%2C+sedangkan+CBB+optimum+pada+pH+9+(alga%2C%0D%0Aalga-Na)+dan+6+(alga-HDTMA).+Waktu+kontak+optimum+metilen+biru+dan+CBB%0D%0Aadalah+15+dan+120+menit+dengan+konsentrasi+optimum+300+mg%2FL.+Kinetika%0D%0Aadsorpsi+metilen+biru+dan+CBB+cenderung+mengikuti+kinetika+pseudo+orde+dua%0D%0Adan+isoterm+adsorpsinya+cenderung+mengikuti+pola+isoterm+Freundlich.+Hasil+uji%0D%0Aterhadap+pasangan+bikomponen+menunjukkan+alga-Na+cenderung+lebih+baik%0D%0Adalam+mengadsorpsi+metilen+biru+dan+alga-HDTMA+cenderung+lebih+baik%0D%0Amengadsorpsi+CBB.+Mekanisme+adsorpsi+dilakukan+pada+alga-HDTMA+untuk%0D%0Aadsorpsi+CBB+dan+menunjukkan+bahwa+interaksinya+didominasi+oleh+interaksi%0D%0Aelektrostatik%2C+dan+alga-HDTMA+efektif+digunakan+untuk+adsorpsi+CBB+sebanyak%0D%0Atiga+kali+siklus+penggunaan+dengan+persentase+adsorpsi+di+atas+70%25.%0D%0AKata+kunci+%3A+adsorpsi%2C+CBB%2C+HDTMA-Br%2C+metilen+biru%2C+Sargassum+sp.%0D%0A%0D%0AIn+this+study%2C+modification+of+Sargassum+sp.+algae+biomass+has+been+carried+out%0D%0Ausing+the+Hexadecyltrimethylammonium+Bromide+(HDTMA-Br)+surfactant+aimed%0D%0Aat+changing+the+surface+of+anionic-charged+algae+to+a+more+partially+positive.+The%0D%0Aresulting+adsorbents+are+algae%2C+algae-Na%2C+and+algae-HDTMA+to+be+used+as%0D%0Aadsorbent+of+methylene+blue+and+CBB.+The+adsorbents+were+characterized+by%0D%0AFTIR+and+SEM-EDX.+The+characterization+of+FTIR+indicates+the+presence+of+the%0D%0AO-Na+functional+group+(1419.61+cm-1)+in+algae-Na+and+the+presence+of+C-H+from%0D%0Athe+methyl+group+of+HDTMA+surfactant+(1465.90+cm-1)+in+algae-HDTMA.+SEM%0D%0Acharacterization+indicates+of+that+the+surface+of+algae-Na+adsorbent+has+fine+grains%0D%0Aindicating+the+presence+of+Na%2C+while+in+algae-HDTMA+there+are+sticky+grains+that%0D%0Aindicate+the+presence+of+HDTMA.+The+EDX+spectrum+indicates+the+presence+of%0D%0ANa+and+Br+in+algae-Na+and+algae-HDTMA.+The+results+of+the+adsorption+test%0D%0Ashowed+that+methylene+blue+adsorption+was+optimal+at+pH+6+(algae%2C+algae-Na)+and%0D%0A5+(algae-HDTMA)%2C+while+the+optimum+CBB+at+pH+9+(algae%2C+algae-Na)+and+6%0D%0A(algae-HDTMA).+The+optimum+contact+time+of+methylene+blue+and+CBB+is+15%0D%0Aand+120+mins+with+an+optimum+concentration+of+300+mg%2FL.+Adsorption+kinetics+of%0D%0Amethylene+blue+and+CBB+tend+to+follow+pseudo-second-order+kinetics+and+their%0D%0Aadsorption+isotherms+tend+to+follow+the+Freundlich+isotherm+pattern.+Test+results%0D%0Aon+bicomponent+pairs+showed+that+algae-Na+tends+to+be+better+at+adsorbing%0D%0Amethylene+blue+and+algae-HDTMA+tends+to+better+adsorbing+CBB.+The%0D%0Aadsorption+mechanism+was+performed+on+algae-HDTMA+for+CBB+adsorption+and%0D%0Ashowed+was+dominated+by+electrostatic+interactions%2C+and+algae-HDTMA+was%0D%0Aeffectively+used+for+CBB+adsorption+as+many+as+three+cycles+of+use+with+an%0D%0Aadsorption+percentage+above+70%25.%0D%0AKeywords+%3A+adsorption%2C+CBB%2C+HDTMA-Br%2C+methylene+blue%2C+Sargassum+sp.&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2022-07-06&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F64486%2F1%2F1.%2520ABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F64486%2F2%2F2.%2520SKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F64486%2F3%2F3.%2520SKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Khairunisa%2C+1817011006++(2022)+MODIFIKASI+BIOMASSA+ALGA+Sargasssum+sp.+DENGAN+SURFAKTAN+HEXADECYLTRIMETHYLAMMONIUM+BROMIDE+(HDTMA-Br)+SEBAGAI+ADSORBEN+METILEN+BIRU+DAN+COOMASSIE+BR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