?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=MODIFIKASI+BIOMASSA+ALGA+Sargassum+sp.+DENGAN%0D%0AHexadechyltrimethylammonium+Bromide+(HDTMA-+Br)+DAN+UJI%0D%0AADSORPSI+TERHADAP+BAKTERI+Escherichia+Coli&rft.creator=Hani+%2C+Khuzaimala&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=530+Fisika&rft.description=Pada+penelitian+ini+telah+dilakukan+modifikasi+biomassa+Alga+Sargassum+sp.%0D%0Adengan+pertukaran+ion+Na%2B+menghasilkan+Alga-Na+dan+dilanjutkan+dengan%0D%0Apertukaran+dengan+surfaktan+HDTMA-Br+menghasilkan+Alga-HDTMA.+Adsorben%0D%0Atersebut+dikarakterisasi+dengan+Fourier+Transform+Infra+Red+(FTIR)+untuk%0D%0Amengetahui+gugus+fungsi%2C+Scanning+Structural+Equation+Modelling+with+Energy%0D%0ADispersive+X-Ray+(SEM-EDX)+untuk+mengetahui+morfologi+permukaan+dan%0D%0Akomposisi+unsur+pada+adsorben%2C+dan+X-Ray+Diffraction+(XRD)+untuk+mengetahui%0D%0Atingkat+kristalinitas+dari+adsorben.%0D%0AHasil+karakterisasi+dengan+FTIR+terdapat+pita+serapan+pada+bilangan+gelombang%0D%0A1419%2C61+cm-1%0D%0A%0D%0Ayang+menunjukkan+adanya+ikatan+O-Na+pada+Alga-Na+sedangkan%0D%0A%0D%0Apada+Alga+HDTMA+terdapat+pita+serapan+1465%2C90+cm-1%0D%0A%0D%0Ayang+menunjukkan%0D%0Aadanya+kelompok+metil+dari+HDTMA.+Hasil+analisis+dengan+SEM+menunjukkan%0D%0Aadanya+butiran+halus+yang+menempel+pada+area+permukaan+yang+luas+pada%0D%0Aadsorben+hasil+modifikasi+yang+menandakan+keberadaan+unsur+Na+dan+Br+pada%0D%0AAlga+Na+dan+Alga+HDTMA+yang+didukung+oleh+data+karakterisasi+dengan+EDX.%0D%0AKarakterisasi+dengan+XRD+mengindikasikan+adanya+perubahan+tingkat%0D%0Akristalinitas+dari+biomassa+Alga+Sargassum+sp.+menjadi+lebih+bersifat+amorf%0D%0Asetelah+terjadi+pertukaran+ion+oleh+ion+Na%2B%0D%0A%0D%0Apada+Alga-Na+dan+pertukaran+surfaktan%0D%0A%0D%0AHDTMA-Br+pada+Alga-HDTMA.%0D%0AData+adsorpsi+bakteri+E.+coli+optimum+pada+pH+3%2C+waktu+kontak+60+menit%2C+dan%0D%0A%0D%0Akonsentrasi+2%2C9+mg%2FL.+Laju+adsorpsi+Bakteri+E.+coli+terhadap+adsorben+Alga%2C+Alga-%0D%0ANa%2C+dan+Alga-HDTMA+cenderung+mengikuti+model+kinetika+pseudo+orde+dua+dan%0D%0A%0D%0Aisoterm+adsorpsinya+cenderung+mengikuti+model+isoterm+Freundlich.+Bakteri+E.%0D%0A%0D%0Acoli+mengalami+penurunan+setelah+dilakukan+adsorpsi+oleh+adsorben+Alga-%0D%0AHDTMA+yaitu+sebesar+100+%25.%0D%0A%0D%0AKata+kunci+%3A+Adsorpsi%2C+Alga+Sargassum+sp.%2C+Bakteri+E.+coli+%2C+HDTMA-Br%0D%0A%0D%0AIn+this+study%2C+Sargassum+sp.+algae+biomass+was+modified+by+ion+exchange+with%0D%0ANa%2B%0D%0Aions+to+produce+Alga-Na%2C+followed+by+surfactant+exchange+with+HDTMA-Br%0D%0Ato+produce+Alga-HDTMA.+The+adsorbents+were+characterized+using+Fourier%0D%0ATransform+Infra+Red+Spectroscopy+(FTIR)+to+identify+functional+groups%2C+Scanning%0D%0AElectron+Microscopy+with+Energy+Dispersive+X-Ray+(SEM-EDX)+to+examine%0D%0Asurface+morphology+and+elemental+composition%2C+and+X-Ray+Diffraction+(XRD)+to%0D%0Aanalyze+the+crystallinity+of+the+adsorbents.%0D%0AFTIR+characterization+revealed+an+absorption+band+at+1419.61+cm-1%0D%0A%0D%0Ain+Alga-Na%2C%0D%0Aindicating+the+presence+of+the+O-Na+bond%2C+while+Alga-HDTMA+exhibited+an%0D%0Aabsorption+band+at+1465.90+cm-1%0D%0A%0D%0A%2C+suggesting+the+presence+of+the+methyl+group%0D%0Afrom+HDTMA.+SEM+analysis+showed+fine+particles+attached+to+the+large+surface%0D%0Aarea+of+the+modified+adsorbents%2C+confirming+the+presence+of+Na+and+Br+elements+in%0D%0AAlga-Na+and+Alga-HDTMA%2C+as+supported+by+EDX+data.+XRD+characterization%0D%0Aindicated+a+change+in+crystallinity+from+crystalline+to+amorphous+in+the+modified%0D%0Aadsorbents+due+to+ion+exchange+by+Na%2B%0D%0A%0D%0Aions+in+Alga-Na+and+surfactant+exchange%0D%0A%0D%0Aby+HDTMA-Br+in+Alga-HDTMA.%0D%0AThe+optimum+conditions+for+E.+Coli+adsorption+were+pH+3%2C+contact+time+of+60%0D%0Aminutes%2C+and+concentration+of+2.9+mg%2FL.+The+adsorption+kinetics+of+Escherichia%0D%0A%0D%0Acoli+on+Alga%2C+Alga-Na%2C+and+Alga-HDTMA+adsorbents+followed+the+pseudo-%0D%0Asecond-order+kinetic+model%2C+and+the+adsorption+isoterms+followed+the+Freundlich%0D%0A%0D%0Aisoterm+model.+The+percentage+reduction+of+bacteria+after+adsorption+by+Alga-%0D%0AHDTMA+adsorbent+was+100%25.%0D%0A%0D%0AKeywords%3A+Adsorption%2C+Sargassum+sp.+Algae%2C+E.+Coli+Bacteria%2C+HDTMA-Br%0D%0A&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2024-08-14&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F82448%2F1%2FHani%2520Khuzaimala_Abstract%2520-%2520Hani%2520Khuzaimala.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F82448%2F2%2FHani%2520Khuzaimala_Skripsi%2520-%2520Hani%2520Khuzaimala%2520%25281%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F82448%2F3%2FHani%2520Khuzaimala_Skripsi%2520-%2520Hani%2520Khuzaimala.pdf&rft.identifier=++Hani+%2C+Khuzaimala++(2024)+MODIFIKASI+BIOMASSA+ALGA+Sargassum+sp.+DENGAN+Hexadechyltrimethylammonium+Bromide+(HDTMA-+Br)+DAN+UJI+ADSORPSI+TERHADAP+BAKTERI+Escherichia+Coli.++FAKULTAS+MATEMATIKA+DAN+ILMU+PEN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