?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=STUDI+ADSORPSI+ION+Cd(II)%2C+Cu(II)%2C+DAN+Pb(II)+OLEH+BIOMASSA+%0D%0ASpirulina+sp+YANG+DIIMMOBILISASI+DENGAN+SILIKA+MAGNETIT%0D%0A%0D%0A&rft.creator=RINA+WIJAYANTI%2C+1117011045&rft.subject=Q+Science+(General)&rft.description=ABSTRAK%0D%0A%0D%0APada+penelitian+ini+telah+dilakukan+modifikasi+biomassa+alga+Spirulina+sp+dengan+silika+sebagai+matriks+yang+dilapisi+dengan+partikel+magnetit+(Fe3O4).+Material+tersebut+digunakan+untuk+menyerap+ion+Cd(II)%2C+Cu(II)%2C+dan+Pb(II)+dalam+larutan.+Karakterisasi+material+dilakukan+untuk+mengidentifikasi+gugus+fungsi+dengan+spektrofotometer+inframerah+(IR)+dan+analisis+tingkat+kekristalan+dengan+difraksi+sinar%E2%80%93X+(XRD).+Adsorpsi+ion+Cd(II)%2C+Cu(II)%2C+dan+Pb(II)+pada+HAS+(Hibrida+alga+silika)+dan+HASM+(Hibrida+alga+silika+magnetit)+di+uji+dengan+spektrofotometer+serapan+atom+(SSA)%2C+masing-masing+optimum+pada+pH+6+dengan+konsentrasi+300+ppm+dan+waktu+kontak+selama+60+menit.+Kapasitas+adsorpsi+ion+Cd(II)%2C+Cu(II)%2C+dan+Pb(II)+oleh+HAS+masing%E2%80%93masing+sebesar+26%2C14%3B+27%2C63%3B+56%2C00+mg%2Fg+sedangkan+kapasitas+adsorpsi+ion+Cd(II)%2C+Cu(II)%2C+dan+Pb(II)+oleh+HASM+masing-masing+sebesar+124%2C89%3B+90%2C79%3B+90%2C09+mg%2Fg+Hasil+ini+jelas+menunjukkan+bahwa+kapasitas+HASM+secara+signifikan+lebih+tinggi+daripada+HAS.+Hal+ini+menunjukkan+peran+yang+sangat+peting+dari+magnetit+untuk+meningkatkan+kapasitas+adsorpsi+biomassa+yang+diselidiki.%0D%0A%0D%0AKata+kunci+%3A+Adsorpsi%2C+biomassa%2C+Spirulina+sp%2C+silika%2C+magnetit.%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AIn+this+study%2C+Spirulina+sp+algae+biomass+was+immbilized+on+silica%2C+specified+as+HAS%2C+and+silica+coated+with+magnetite+(Fe3O4)+particle%2C+specified+as+HASM%2C+and+subsequently+aplied+to+absorb+Cd+(II)%2C+Cu+(II)+and+Pb+(II)+in+solution.++The+adsorbents+were+characterized+using+Fourier+transform+infrared+(FTIR)+spectroscopy+to+identify+functional+group+and+with+X-ray+diffraction+(XRD)+to+examine+the+structure.++To+investigate+the+adsorption+capacity%2C+a+series+of+experiment+was+carreid+out+at+different+pH+and+metal+concentrations%2C+and+the+residual+metals+in+the+water+was+determined+using+atomic+absorption+spectrophotometer+(AAS).++The+results+obtained+demosntrated+that+the+optimum+pH++for+adsorption+was+6.0%2C+giving+the+adsorption+capacity+of+26.14%3B+27.63%3B+56.00+mg%2Fg++for+Cd+(II)%2C+Cu+(II)+and+Pb+(II)+by+HAS%2C+and+124.89%3B+90.79%3B+90.09+mg%2Fg%2C+respectively%2C+by+HASM.++These+results+evidently+revealed+that+HASM+exhibited+significanly+higher+capacity+than+HAS%2C+suggesting+very+important+role+of+magnetite+to+enhance+the+adsoprtion+capacity+of+the+biomass+investigated.%0D%0A%0D%0AKey+words+%3A+Adsorption%2C+biomass%2C+Spirulina+sp%2C+silica%2C+magnetite.+%0D%0A%0D%0A&rft.publisher=MIPA&rft.date=2015-12-01&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F1%2F1.COVER%2520LUAR.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F2%2F2.COVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F3%2F4.ABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F4%2F5.ABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F5%2F6.RIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F6%2F7.MOTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F7%2F8.PERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F8%2F9.SANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F9%2F10.DAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F10%2F11.DAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F11%2F12.DAFTAR%2520GAMBAR..pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F12%2FLEMBAR%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F13%2FLEMBAR%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F14%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F15%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F16%2FBAB%2520III.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F17%2FBAB%2520IV.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F48%2FBAB%2520V.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15646%2F18%2FDAFTAR%2520PUSTAKA.pdf&rft.identifier=++RINA+WIJAYANTI%2C+1117011045++(2015)+STUDI+ADSORPSI+ION+Cd(II)%2C+Cu(II)%2C+DAN+Pb(II)+OLEH+BIOMASSA+Spirulina+sp+YANG+DIIMMOBILISASI+DENGAN+SILIKA+MAGNETIT.++MIPA%2C+Universitas+Lampung.+++++&rft.relation=http%3A%2F%2Fdigilib.unila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