?url_ver=Z39.88-2004&rft_id=1417011005&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=SINTESIS+HIBRIDA+ALGA+Porphyridium+sp.+DENGAN+TEKNIK+PELAPISAN+SILIKA+MAGNETIT+(Fe3O4)+SEBAGAI+ADSORBEN+%0D%0AZAT+WARNA+KRISTAL+VIOLET%0D%0A&rft.creator=Ana+Devita+Mutiara%2C+1417011005&rft.subject=+&rft.subject=QD+Chemistry&rft.description=Pada+penelitian+ini+telah+dilakukan+sintesis+adsorben+hibrida+alga+Porphyridium+sp.+menggunakan+teknik+pelapisan+silika+(HAS)+dan+hibrida+alga+Porphyridium+sp.+dengan+teknik+pelapisan+silika+magnetit%2C+Fe3O4+(HASM).++Adsorben+hasil+sintesis+dikarakterisasi+menggunakan+spektrofotometer+inframerah+(IR)+untuk+mengidentifikasi+gugus+fungsi+yang+terdapat+pada+adsorben%2C+X-Ray+Diffraction+(XRD)+untuk+menentukan+tingkat+kekristalan+terutama+dari+hasil+modifikasi+HAS+dan+magnetit+serta+Scanning+Electron+Microscopy+with+Energi+Dispersive+X-Ray+(SEM-EDX)+untuk+menganalisis+morfologi+permukaan+dan+komposisi+unsur+dalam+adsorben.++Hasil+adsorpsi+kristal+violet+terhadap+HAS+dan+HASM+dianalisis+dengan+menggunakan+spektrofotometer+UV-Vis.+Tingkat+optimum+adsorpsi+kristal+violet+terhadap+adsorben+HAS+dan+HASM+terjadi+pada+pH+8+dengan+waktu+kontak+120+menit.+Laju+adsorpsi+kristal+violet+terhadap+HAS+dan+HASM+cenderung+mengikuti+model+kinetika+pseudo+orde+dua+dengan+nilai+k2+masing+%E2%80%93+masing+sebesar+0%2C477+x+10-5+dan+0%2C046+x+10-5+g+mmol-1+menit-1+serta+nilai+koefisien+korelasi+(R2)+mendekati+1.++Isoterm+adsorpsi+kristal+violet+terhadap+HAS+dan+HASM+cenderung+mengikuti+model+isoterm+Freundlich.%0D%0A%0D%0AKata+Kunci+%3A+Alga+Porphyridium+sp.%2C+Silika%2C+Hibrida+Alga+Silika%2C+Magnetit%2C++++Kristal+Violet.%0D%0A%0D%0A%0D%0A%0D%0AThis+study+has+been+carried+out+the+synthesis+of+the+hybrid+adsorbent+algae+Porphyridium+sp.+using+silica+coating+(HAS)+and+Porphyridium+sp.+algae+hybrid+with+magnetite+silica+coating+technique%2C+Fe3O4+(HASM).++The+synthesized+adsorbent+was+characterized+using+an+infrared+spectrophotometer+(IR)+to+identify+the+functional+groups+contained+in+the+adsorbent%2C+X-Ray+Diffraction+(XRD)+to+determine+the+crystallinity+is+mainly+modify+by+HAS+and+magnetite+and+then+Scanning+Electron+Microscopy+with+Energy+Dispersive+X-Ray+(SEM-EDX)+to+analyze+surface+morphology+and+element+composition+in+the+adsorbent.++The+results+of+crystal+violet+adsorption+on+HAS+and+HASM+were+analyzed+using+a+UV-Vis+spectrophotometer.++The+optimum+level+of+crystal+violet+adsorption+for+HAS+and+HASM+adsorbents+occurred+at+pH+8+with+a+contact+time+of+120+minutes.+The+rate+of+crystal+violet+adsorption+on+HAS+and+HASM+tends+to+follow+the+second+order+pseudo+kinetics+model+with+the+values+of+k2+is+0%2C477+x+10-5+and+0%2C046+x+10-5+g+mmol-1+minute-1+and+then+the+correlation+coefficient+(R2)+is+close+to+1.+Crystal+violet+adsorption+isotherms+for+HAS+and+HASM+tend+to+follow+the+Freundlich+isotherm+model.%0D%0A%0D%0AKeyword%3A+%09Porphyridium+sp.+Algae%2C+Silica%2C+Silica+Algae+Hybrids%2C+Magnetite%2C+Crystals+Violet.%0D%0A&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2018-09-26&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F37186%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F37186%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F37186%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Ana+Devita+Mutiara%2C+1417011005++(2018)+SINTESIS+HIBRIDA+ALGA+Porphyridium+sp.+DENGAN+TEKNIK+PELAPISAN+SILIKA+MAGNETIT+(Fe3O4)+SEBAGAI+ADSORBEN+ZAT+WARNA+KRISTAL+VIOLET.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F37186%2F