?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ADSORPSI+MULTIKOMPONEN+(METILEN+BIRU%2C+KRISTAL+VIOLET%2C%0D%0ADAN+ION+Cu(II))+OLEH+ADSORBEN+HIBRIDA+ALGA+Spirulina+sp.%0D%0ASILIKA-MAGNETIT+(Fe3O4)&rft.creator=SITI+NUR+AINI%2C+1517011080&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.description=In+this+research%2C+it+has+been+conducted+synthesis+of+Algae+Hybrid+Silica+(HAS)%0D%0Aand+Algae+Hybrid+Silica-Magnetite+(HASM)+from+algae+biomass+Spirulina+sp.+to%0D%0Abe+used+as+an+adsorbent+multicomponent+solution+(methylene+blue%2C+crystal+violet%2C%0D%0Aand+Cu(II)+ion).+The+synthesized+adsorbents+were+characterized+using+an+infrared%0D%0Aspectrophotometer+(IR)+to+identify+functional+groups%2C+X-ray+Diffraction+(XRD)+to%0D%0Adetermine+the+level+of+crystallinity+and+Scanning+Electron+Microscopy+with%0D%0AEnergy+Dispersive+X-ray+(SEM-EDX)+to+analyze+surface+morphology+and%0D%0Aelemental+composition.+The+concentration+of+methylene+blue+and+crystal+violet+in%0D%0Amulticomponent+solution+was+analyzed+using+a+UV-Vis+spectrophotometer+while%0D%0Athe+concentration+of+Cu(II)+ion+was+analyzed+by+Atomic+Absorption%0D%0ASpectrophotometer+(AAS).+Adsorption+of+multicomponent+solution+on+HAS+and%0D%0AHASM+adsorbent+optimum+at+pH+8+with+contact+times+of+30+and+15+minutes%2C%0D%0Arespectively.+The+adsorption+rate+of+multicomponent+solutions+to+HAS+and%0D%0AHASM+tends+to+follow+the+pseudo+second+order+kinetics+model.+Multicomponent%0D%0Aadsorption+isotherms+tend+to+follow+the+Freundlich+isotherm+model.+The+HAS+and%0D%0AHASM+adsorbent+can+be+used+repeatedly+to+adsorb+methylene+blue+as+much+as+5%0D%0Atimes+in+the+repetition+cycle+with+an+adsorption+percentage+%3C+80%25.+Keywords%3A+Spirulina+sp.%2C+adsorption%2C+methylene+blue%2C+crystal+violet%2C+Cu(II)+ion%2C%0D%0Amulticomponent.%0D%0A%0D%0APada+penelitian+ini+telah+dilakukan+sintesis+Hibrida+Alga+Silika+(HAS)+dan+Hibrida%0D%0AAlga+Silika-Magnetit+(HASM)+dari+biomassa+alga+Spirulina+sp.+untuk+digunakan%0D%0Asebagai+adsorben+larutan+multikomponen+(metilen+biru%2C+kristal+violet%2C+dan+ion%0D%0ACu(II)).+Adsorben+hasil+sintesis+dikarakterisasi+menggunakan+spektrofotometer%0D%0Ainframerah+(IR)+untuk+mengidentifikasi+gugus+fungsi%2C+X-ray+Diffraction+(XRD)%0D%0Auntuk+menentukan+tingkat+kekristalan+serta+Scanning+Electron+Microscopy+with%0D%0AEnergi+Dispersive+X-ray+(SEM-EDX)+untuk+menganalisis+morfologi+permukaan%0D%0Adan+komposisi+unsur.+Kadar+larutan+metilen+biru+dan+kristal+violet+dalam+larutan%0D%0Amultikomponen+dianalisis+menggunakan+spektrofotometer+UV-Vis+sedangkan+ion%0D%0ACu(II)+dianalisis+dengan+Atomic+Absorption+Spectrophotometer+(AAS).+Adsorpsi%0D%0Alarutan+multikomponen+oleh+adsorben+HAS+dan+HASM+optimum+pada+pH+8%0D%0Adengan+waktu+kontak+masing-masing+selama+30+dan+15+menit.+Laju+adsorpsi%0D%0Alarutan+multikomponen+terhadap+HAS+dan+HASM+cenderung+mengikuti+model%0D%0Akinetika+pseudo+orde+dua.+Isoterm+adsorpsi+multikomponen+cenderung+mengikuti%0D%0Amodel+isoterm+Freundlich.+Adsorben+HAS+dan+HASM+dapat+digunakan+secara%0D%0Aberulang+untuk+mengadsorpsi+metilen+biru+sebanyak+5+kali+siklus+pengulangan%0D%0Adengan+persentase+adsorpsi+%3C+80%25.%0D%0AKata+kunci+%3A+Spirulina+sp.%2C+adsorpsi%2C+metilen+biru%2C+kristal+violet%2C+ion+Cu(II)%2C%0D%0Amultikomponen%2C%0D%0A%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%2F57145%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57145%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57145%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++SITI+NUR+AINI%2C+1517011080++(2019)+ADSORPSI+MULTIKOMPONEN+(METILEN+BIRU%2C+KRISTAL+VIOLET%2C+DAN+ION+Cu(II))+OLEH+ADSORBEN+HIBRIDA+ALGA+Spirulina+sp.+SILIKA-MAGNETIT+(Fe3O4).++Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57145%2F