?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=KAJIAN+ISOTERM+ADSORPSI+ION+Ni(II)+DAN+Zn(II)%0D%0APADA+BIOMASSA+Porphyridium+sp.+YANG+DIMODIFIKASI%0D%0ADENGAN+SILIKA+%E2%80%93+MAGNET&rft.creator=Rio+Wicaksono%2C+1117011047&rft.subject=Q+Science+(General)&rft.description=Telah+dilakukan+penelitian+tentang+adsorpsi+ion+logam+Ni(II)+dan+Zn(II)+pada+biomassa+alga+Porphyridium+sp.+yang+dimodifikasi+oleh+matriks+silika+(PS)+melalui+proses+sol+gel+dengan+teknik+pelapisan+dengan+magnetit+(PSM).+Karakterisasi+material+hasil+sintesis+dilakukan+dengan+spektrofotometer+IR+untuk+mengidentifikasi+gugus+fungsi+berhasil+dilakukan+dengan+meihat+bilangan+gelombang+3000+%E2%80%93+2900+cm-1+yang+menandakan+bahwa+terjadinya+immobilisasi+biomassa+alga+Porphyridium+sp.+pada+silika+dalam+PS+dan+PSM.+Pelapisan+oleh+magnetit+juga+berhasil+dilakukan+dengan+melihat+peak+pada+difaktogram+difraksi+sinar-X+(XRD)%2C+diketahui+bahwa+peak+pada+PSM+memiliki+peak+yang+sama+dengan+magnetit+ini+menandakan+PSM+merupakan+kristalin+sedangkan+PS+adalah+amorf.+Adsorpsi+ion+logam+Ni(II)+dan+Zn(II)+oleh+PS+dan+PSM+masing+%E2%80%93+masing+optimum+pada+pH+5+dan+6+pada+konsentrasi+300+ppm+dengan+waktu+kontak+60+menit.+Kapasitas+adsorpsi+ion+Ni(II)+dan+Zn(II)+oleh+PS+masing-masing+adalah+33%2C00+dan+62%2C43+mg+g-1+sedangkan+pada+PSM+masing-masing+35%2C00+dan+46%2C00+mg+g-1.+Hal+ini+mengindikasikan+bahwa%2C+biomassa+Porphyridium+sp.+yang+dimodifikasi+dengan+silika+dan+dilapisi+oleh+magnetit+dapat+dijadikan+sebagai+adsorben.%0D%0AKata+Kunci+%3A+Porphyridium+sp.+%E2%80%93+silika+(PS)%2C+Porphyridium+sp.+%E2%80%93+silika+%E2%80%93+magnetit+(PSM)%2C+Adsorpsi%2C+Logam+berat.%0D%0A%0D%0ASTUDY+OF+ION+ADSORPTION+ISOTHERM+of+Ni+(II)+AND+Zn+(II)%0D%0AON+BIOMASS+Porphyridium+sp.+MODIFIED%0D%0AWITH+SILICA+%E2%80%93+MAGNET%0D%0A%0D%0AIt+had+been+conducted+a+research+about+the+adsorption+of+metal+ions+Ni(II)+and+Zn(II)+of+the+algae+biomass+Porphyridium+sp.+modified+by+a+silica+matrix+(PS)+via+sol+gel+process%2C+then+it+was+continued+by+magnetite+coat+(PSM).+Material+characterization+of+the+synthesis+result+that+was+done+with+IR+spectrophotometer+to+identify+functional+groups+was+successfully+done+by+looking+at+the+wave+numbers+3000+-+2900+cm-1+that+indicated+the+occurrence+of+algae+biomass+immobilization+Porphyridium+sp.+to+silica+within+PS+and+PSM.+Magnetite+coating+was+done+by+looking+the+peak+on+X-ray+diffractogram+diffraction+(XRD)%2C+it+had+been+discovered+that+the+peak+on+PSM+had+the+same+peak+with+magnetite.+It+indicated+that+PSM+was+crystalline+whereas+PS+was+amorphous.+Both+of+the+adsorption+of+metal+ions+Ni+(II)+and+Zn+(II)+that+had+been+done+by+PS+and+PSM+were+optimal+at+pH+5+and+6+on+300+ppm+concentration+in+a+60+minutes.+The+capacity+of+ion+adsorption+of+Ni+(II)+and+Zn+(II)+that+had+been+done+by+PS+were+respectively+33%2C00+and+62%2C43+mg+g-1+whereas+in+PSM%2C+the+results+were+respectively+35%2C00+dan+46%2C00+mg+g-1.+This+indicates+that%2C+Porphyridium+sp.+which+modified+by+silica+and+coated+by+magnetite+can+be+use+as+adsorbent.%0D%0AKeywords%3A+Porphyridium+sp.+-+Silica+(PS)%2C+Porphyridium+sp.+-+silica+-+magnetite+(PSM)%2C+Adsorption%2C+Heavy+metals.&rft.publisher=MIPA&rft.date=2015-11-30&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F2%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F3%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F4%2FLEMBAR%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F5%2FLEMBAR%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F6%2FRIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F7%2FPERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F8%2FMOTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F9%2FSANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F12%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F10%2FDAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F11%2FDAFTAR%2520GAMBAR.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F14%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F15%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F13%2FBAB%2520III.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F17%2FBAB%2520IV.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F16%2FBAB%2520V.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15548%2F18%2FDAFTAR%2520PUSTAKA.pd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