?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=STUDI+ADSORPSI+ION+Pb(II)+dan+Cu(II)+PADA+BIOMASSA%0D%0AALGA+Chaetoceros+sp+DENGAN+PELAPISAN+SILIKA-MAGNETIT%0D%0A%0D%0AADSORPTION+STUDY+OF+Pb+(II)+AND+Cu+(II)+IONS+ON+Chaetoceros+sp+ALGAE+BIOMASS+WITH+COATING+OF+SILICA-MAGNETITE&rft.creator=Rudi+Jailani%2C+0817011055&rft.description=ABSTRAK%0D%0A%0D%0APada+penelitian+ini+telah+dilakukan+sintesis+hibrida+alga+silika+(HAS)%2C+dan+HAS-magnetit+yang+dianalisis+dengan+menggunakan+spektrofotometer+inframerah+(IR)%2C+Scanning+Electron+Microscope(SEM)%2C+dan+spektofotometer+serapan+atom+(SSA).+Identifikasi+gugus+fungsi+HAS%2C+dan+HAS-magnetit+dilakukan+dengan+menggunakan+spektrofotometer+inframerah+(IR)+diketahui+adanya+tambahan+serapan+baru+yang+terdapat+pada+bilangan+gelombang+2924%2C09+cm-1+yang+berasal+dari+serapan+vibrasi+ulur+C-H+dari+(-CH2)+alifatik+menunjukkan+bahwa+hibridisasi+silika+dengan+biomassa+alga+Chaetoceros+sp+telah+berhasil+dilakukan+pada+HAS+maupun+HAS-magnetit.+Analisis+morfologi+permukaan+pada+adsorben+dilakukan+menggunakan+instrumentasi+Scanning+Electron+Microscope(SEM).+Pada+mikrograf+magnetit+bersifat+kristalin+dan+pada+mikrograf+silika+magnetit+cenderung+bersifat+amorf.+Sedangkan+pada+mikrograf+HAS+bersifat+amorf+dan+HAS-magnetit+bersifat+kristalin.+Data+kinetika+adsorpsi+ion+Pb(II)+dan+Cu(II)+pada+alga%2C+HAS%2C+dan+HAS-magnetit+cenderung+mengikuti+model+kinetika+pseudo+orde+dua+dengan+k2+masing-masing+0%2C018%2C+0%2C285+dan+0%2C428+g+mmol-1+menit-1+untuk+ion+Pb(II)+kemudian+untuk+ion+Cu(II)+adalah+0%2C159%2C+0%2C344+dan+0%2C681+g+mmol-1+menit-1.+Isoterm+adsorpsi+ion+Pb(II)+dan+Cu(II)+pada+alga%2C+HAS+dan+HAS-magnetit+cenderung+mengikuti+model+isoterm+Freundlich+dengan+nilai+Kf+masing-masing+1%2C028%2C+1%2C116+dan+1%2C140+mol+L-1untuk+ion+Pb(II)%2C+untuk+ion+Cu(II)+adalah+1%2C253%2C+1%2C135+dan+1%2C218+mol+L-1.%0D%0AKata+kunci%3A+adsorpsi%2C+isoterm%2C+alga+Chaetoceros+sp%2C+HAS%2C+dan+HAS-magnetit%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AIn+this+study%2C+it+had+been+performed+the+synthesis+of+silica+algae+hybrid+(HAS)+and+HAS-magnetite+analyzed+with+using+an+infrared+spectrophotometer+(IR)%2Ca+scanning+electron+microscope+(SEM)+and+an+atomic+absorption+spectrophotometer+(AAS).+HAS+and+HAS-magnetite+functional+group+identification+were+performed+using+infrared+spectrophotometer+(IR).+Spectra+data+of+infrared+spectrophotometer+showed+that+the+addition+of+a+new+absorption+with+wave+number+of+2924.09+cm-1%2C+which+derived+from+C-H+stretching+vibrations+of+aliphatic+(-CH2).+Thus%2C+hybridization+of+silica+with+Chaetoceros+sp+algae+biomass+had+been+performed+successfully+on+HAS+and+HAS-magnetite.+Surface+morphology+analysis+on+the+adsorbent+was+applied+using+scanning+electron+microscope+(SEM).+Micrograph+of+magnetite+is+crystalline+and+micrographs+of+silica-magnetite+tend+to+be+amorphous.+While+micrograph+of+HAS+are+amorphous+and+HAS-magnetite+is+crystalline.+Adsorption+kinetics+data+of+Pb+(II)+and+Cu+(II)+ion+on+algae%2C+HAS+and+HAS-magnetite+tend+to+follow+second+order+pseudo+kinetics+model+with+values+of+k2+respectively%2C+0.018%2C+0.285+and+0.428+mmol+g-1+min-1+for+Pb+(II)+ion+and+for+Cu(II)+ion+0.159%2C+0.344+and+0.681+mmol+g-1+min-1.+Adsorption+isotherms+of+Pb+(II)+and+Cu+(II)+ion+on+algae%2C+HAS+and+HAS-magnetite+tend+to+follow+Freundlich+isotherm+models+with+values+of+Kf+respectively+1.028%2C+1.116%2C+and+1.140+mol+L-1+for+the+Pb+(II)+ion%2C+whereas+for+the+Cu+(II)+ions+are+1.253%2C+1.135%2C+and+1.218+mol+L-1.%0D%0AKeywords%3A+adsorption%2C+chaetoceros+sp+algae%2C+isotherm.&rft.publisher=FAKULTAS+MIPA&rft.date=2013-03-01&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F1%2F3.%2520ABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F2%2F4.%2520COVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F3%2F6.%2520LEMBAR%2520MENGESAHKAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F4%2F7.%2520RIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F5%2F8.%2520MOTTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F6%2F9.%2520PERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F7%2F10.%2520SANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F8%2F12.%2520DAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F9%2FAbstract%2520Rudi.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F10%2Fcover.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F11%2FDAFTAR%2520GAMBAR.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F12%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5675%2F13%2FLembar%2520pengesahan.pdf&rft.format=text&rft.id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