?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=KAJIAN+ADSORPSI+ION-ION+LOGAM+DIVALEN+Ca(II)%2C+Cu(II)%2C+DAN+Cd(II)+OLEH+BIOMASSA+ALGA+MERAH+Porphyridium+sp&rft.creator=AGUNG+SUPRIYANTO%2C+1017011003&rft.subject=QD+Chemistry&rft.description=ABSTRAK%0D%0A%0D%0APada+penelitian+ini+telah+dilakukan+studi+adsorpsi+ion+Ca(II)%2C+Cu(II)%2C+dan+Cd(II)+oleh+biomassa+alga+Porphyridum+sp.+Identifikasi+gugus+fungsi+pada+biomassa+Porphyridium+sp+dilakukan+dengan+menggunakan+spektrofotometer+inframerah+(IR).+Hasil+identifikasi+menunjukkan+bahwa+biomassa+Porphyridium+sp+mengandung+gugus+%E2%80%93OH%2C+C%3DO%2C+N-H%2C+dan+S%3DO.+Kajian+adsorpsi+ion+Ca(II)%2C+Cu(II)%2C+dan+Cd(II)+oleh+biomassa+Porphyridium+sp+meliputi+penentuan+dosis+biomassa+alga%2C+pH%2C+waktu%2C+dan+konsentrasi+ion+logam+menunjukkan+bahwa+adsorpsi+ion+Ca(II)%2C+Cu(II)%2Cdan+Cd(II)+oleh+biomassa+Porphyridium+sp+optimum+pada+dosis+biomassa+alga+0%2C1+g%2C+pH+4%2C+dan+waktu+pengadukkan+30+menit.+Proses+adsorpsi+ion+Ca(II)%2C+Cu(II)%2C+dan+Cd(II)+oleh+biomassa+Porphyridium+sp+dilakukan+dengan+metode+batch+dan+kadar+logam+dianalisis+dengan+spektrofotometer+serapan+atom+(SSA).+Adsorpsi+ion+Ca(II)%2C+Cu(II)%2Cdan+Cd(II)+oleh+biomassa+Porphyridium+sp+mengikuti+persamaan+kinetika+pseudo+orde+dua+dengan+konstanta+laju+masing-masing+sebesar+45%2C48%3B+157%2C79%3B+167%2C98+g+mmol-1+menit-1+serta+pola+adsorpsinya+cenderung+mengikuti+pola+adsorpsi+isoterm+Langmuir+dengan+kapasitas+adsorpsi+masing-masing+ion+logam+sebesar+28%2C63%3B+37%2C07%3B+76%2C92+mg+g-1.+Energi+adsorpsi+masing-masing+ion+Ca(II)%2C+Cu(II)%2C+dan+Cd(II)+oleh+biomassa+alga+Porphyridium+sp+sebesar+8%2C14%3B+14%2C46%3B+20%2C89+kJ+mol-1.%0D%0AKata+kunci%3A+Porphyridium+sp%2C+kinetika+adsorpsi%2C+dan+isoterm+adsorpsi%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AThe+study+of+adsorption+metal+ions+Ca(II)%2C+Cu(II)%2C+and+Cd(II)+by+red+algae+biomass+Porphyridium+sp+it+has+been+performed.+Infrared+spectrophotometry+(IR)+was+used+to+identificate+the+biomass+functional+group+of+Porphyridium+sp.+The+results+showed+that+Porphyridium+sp+biomass+contains+%E2%80%93OH%2C+C%3DO%2C+N-H%2C+and+S%3DO.+Adsorption+study+of+Ca(II)%2C+Cu(II)%2C+and+Cd(II)+metal+ions+included+determination+of+biomass+algae+dosage%2C+pH%2C+stired+time%2C+and+concentration+of+metal+ions+showing+that+adsorption+of+Ca(II)%2CCu(II)%2C+and+Cd(II)+ions+is+optimum+at+0.1+g+biomass+dosage%2C+pH+4%2C+and+30+minute+stired+time.+The+adsorption+process+of+Ca(II)%2C+Cu(II)%2C+and+Cd(II)+ions+by+Porphyridium+sp+biomass+was+done+by+using+batch+method%2C+and+metal+ion+concentration+was+analyzed+by+atomic+absoprtion+spectrophotometry+(AAS).+Adsorption+of+Ca(II)%2C+Cu(II)%2C+and+Cd(II)+ions+by+Porphyridium+sp+biomass+follows+pseudo+second-order+with+rate+constant+for+each+metal+ion+is+45.48%2C+157.79%2C+and+167.98+g+mmol-1+minute-1+and+the+adsorption+models+tend+to+follow+Langmuir+isoterm+adsorption+with+adsorption+capacity+for+each+metal+is+28.63%2C+37.07%2C+and+76.92+mg+g-1.+Adsorption+energy+of+each+Ca(II)%2C+Cu(II)%2C+and+Cd(II)+metal+ions+by+Porphyridium+sp+algae+biomass+is+8.14%2C+14.46%2C+and+20.89+kJ+mol-1.%0D%0AKeywords%3A+Porphyridium+sp%2C+adsorption+kinetic%2C+and+adsorption+isoterm&rft.publisher=Fakultas+Mipa&rft.date=2014-10-23&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F2%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F3%2FHALAMAN%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F4%2FHALAMAN%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F5%2FRIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F6%2FMOTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F7%2FPERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F11%2FSANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F8%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F9%2FDAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F10%2FDAFTAR%2520GAMBAR.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F12%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F13%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F14%2FBAB%2520III.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F15%2FBAB%2520IV.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F16%2FBAB%2520V.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5564%2F17%2FDAFTAR%2520PUSTAKA.pdf&rft.identifier=++AGUNG+SUPRIYANTO%2C+1017011003++(2014)+KAJIAN+ADSORPS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