?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ADSORPSI+MULTIKOMPONEN+(ION+Cu(II)%2C+METILEN+BIRU%2C+DAN+%0D%0AKRISTAL+VIOLET)+PADA+ADSORBEN+HIBRIDA+ALGA%0D%0ANannochloropsis+sp.+SILIKA-MAGNETIT+(Fe3O4)&rft.creator=TRI+AGUS+WIJAYANTI%2C+1517011100&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.description=Pada+penelitian+ini+telah+dilakukan+sintesis+adsorben+hibrida+alga+Nannochloropsis+%0D%0Asp.+dengan+menggunakan+silika+sebagai+matriks+(HAS)+dan+pelapisan+magnetit+%0D%0A(HASM)+sebagai+adsorben+campuran+pasangan+larutan+metilen+biru+(MB)+dan+%0D%0Akristal+violet+(KV)%2C+serta+larutan+multikomponen.+Karakterisasi+material+%0D%0Amenggunakan+Spektrofotometer+Inframerah+(IR)+untuk+mengidentifikasi+gugus+%0D%0Afungsi%2C+X-Ray+Difraction+(XRD)+untuk+mengetahui+tingkat+kekristalan%2C+Scanning+%0D%0AEectron+Microscopy+with+Energy+Dispersive+X-ray+(SEM-EDX)+untuk+%0D%0Amengetahui+morfologi+permukaan.+Kadar+MB+dan+KV+dianalisis+dengan+%0D%0ASpektrofometer+UV-Vis+pada+panjang+gelombang+masing-masing+664+dan+591+nm+%0D%0Asedangkan+kadar+ion+Cu(II)+ditentukan+dengan+menggunakan+Spektrofotometer+%0D%0ASerapan+Atom+(SSA).+Adsorpsi+MB+dan+KV+pada+HAS+dan+HASM+dipelajari+%0D%0Ameliputi+variasi+waktu%2C+variasi+konsentrasi%2C+penggunaan+ulang%2C+dan+mekanisme+%0D%0Aadsorpsi.+Kinetika+adsorpsi+pada+adsorben+HAS+dan+HASM+dalam+campuran+%0D%0Apasangan+larutan+MB+dan+KV%2C+serta+larutan+multikomponen+cenderung+mendekati+%0D%0Amodel+kinetika+pseudo+orde+dua+dengan+nilai+koefisien+korelasi+(R%0D%0A2%0D%0A)+mendekati+1.+%0D%0AIsoterm+adsorpsi+larutan+MB+dan+KV+dalam+campuran+pasangan+larutan+MB+dan+%0D%0AKV%2C+serta+larutan+multikomponen+pada+adsorben+HAS+dan+HASM+cenderung+%0D%0Amengikuti+model+isoterm+Freundlich+dengan+nilai+koefisien+korelasi+(R%0D%0A2%0D%0A)+%0D%0Amendekati+1.+Penggunaan+ulang+adsorben+HASM+dilakukan+sebanyak+5+kali+%0D%0Adengan+persen+adsorpsi+%3E+99%25.+Mekanisme+adsorpsi+MB+pada+HAS+dan+HASM+%0D%0Adidominasi+oleh+interaksi+pertukaran+ion.%0D%0AKata+Kunci+%3A+Nannochloropsis+sp.%2C+hibrida+alga-silika%2C+magnetit%2C+adsorpsi%EF%BF%BDdesorpsi%2C+Metilen+biru%2C+Kristal+violet%2C+ion+Cu(II)%0D%0A%0D%0AIt+has+been+conducted+synthesis+of+hybrid+Nannochloropsis+sp.+algae+adsorbent+by+%0D%0Ausing+silica+as+a+matrix+(HAS)+and+magnetite+coating+(HASM)+as+an+adsorbent+of+%0D%0Amethylene+blue+(MB)+and+crystal+violet+(CV)+mixture%2C+as+well+as+multicomponent+%0D%0Asolutions.+Material+characterization+used+Infrared+Spectrophotometer+(IR)+to+%0D%0Aidentify+functional+groups%2C+X-Ray+Difraction+(XRD)+to+determine+the+level+of+%0D%0Acrystallinity+and+Scanning+Electron+Microscopy+with+Energy+Dispersive+X-ray+%0D%0A(SEM-EDX)+to+determine+surface+morphology.+The+MB+and+CV+concentration+%0D%0Awere+analyzed+by+UV-Vis+Spectrophotometer+at+664+and+591+nm+wavelengths+%0D%0Awhile+Cu+(II)+ion+concentration+was+determined+using+Atomic+Absorption+%0D%0ASpectrophotometer+(AAS).+The+MB+and+CV+adsorption+on+HAS+and+HASM+were+%0D%0Astudied+including+time+variation%2C+concentration+variation%2C+reusability%2C+and+%0D%0Aadsorption+mechanism.+The+kinetics+of+adsorption+on+HAS+and+HASM+adsorbents+%0D%0Ain+a+mixture+of+MB+and+CV+solution+pair+as+well+as+multicomponent+solutions+%0D%0Atend+to+approach+the+pseudo-second+order+kinetics+model+with+a+correlation+%0D%0Acoefficient+(R2%0D%0A)+close+to+1.+The+isotherm+adsorption+of+MB+and+CV+solutions+in+a+%0D%0Apair+of+mixtures%2C+and+multicomponent+solutions+on+HAS+and+HASM+adsorbent+%0D%0Atend+to+follow+the+Freundlich+isotherm+model+with+a+correlation+coefficient+(R2%0D%0A)+%0D%0Aclose+to+1.+Reuse+of+HASM+adsorbent+is+done+5+times+with+percent+of+adsorption%3E+%0D%0A99%25.+The+MB+adsorption+mechanism+on+HAS+and+HASM+is+dominated+by+ion+%0D%0Aexchange+interactions.%0D%0AKeywords%3A+Nannochloropsis+sp.%2C+Hybrid+algae-silica%2C+magnetite%2C+adsorption%EF%BF%BDdesorption%2C+Methylene+blue%2C+Crystal+violet%2C+Cu+(II)+ion.%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%2F57163%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57163%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57163%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++TRI+AGUS+WIJAYANTI%2C+1517011100++(2019)+ADSORPSI+MULTIKOMPONEN+(ION+Cu(II)%2C+METILEN+BIRU%2C+DAN+KRISTAL+VIOLET)+PADA+ADSORBEN+HIBRIDA+ALGA+Nannochloropsis+sp.+SILIKA-MAGNETIT+(Fe3O4).++Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57163%2F