?url_ver=Z39.88-2004&rft_id=1917011066&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=MODIFIKASI+KARBON+DARI+CANGKANG+BUAH+KARET%0D%0A(Hevea+brasilliensis)+DENGAN+MAGNETIT+DAN+(3-AMINOPROPYL)%0D%0ATRIETHOXYSILANE+(APTES)+UNTUK+ADSORPSI+ANION+NITRAT+DAN%0D%0ACOOMASSIE+BRILLIANT+BLUE+DALAM+LARUTAN&rft.creator=Mhd.+Afif+Alim+%2C+Nasution&rft.subject=001+Ilmu+pengetahuan&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.description=%0D%0AIn+this+study%2C+had+been+synthesized+and+characterized+carbon+from+rubber+fruit+shells%0D%0A(Hevea+brasilliensis)+modified+with+magnetite+coating+to+produce+carbon-magnet%0D%0A(KM)+and+further+modifications+with+(3-Aminopropyl)-triethoxysilane+(APTES)+to%0D%0Aproduce+carbon+magnetite+silane+(KMS)+as+adsorbent+for+nitrate+anion+and%0D%0ACoomassie+Brilliant+Blue+(CBB).+Characterization+of+the+adsorbents+was+carried+out%0D%0Ausing+a+Fourier+Transform+Infra-Red+(FTIR)+spectrophotometer+to+identify%0D%0Afunctional+groups%2C+X-Ray+Diffraction+(XRD)+to+identify+crystallinity+levels+and%0D%0AScanning+Electron+Microscope-Energy+Dispersive+X-Ray+(SEM-EDX)+to%0D%0Adetermine+surface+morphology+and+identify+the+elemental+composition.+Monocomponent%0D%0Aadsorption+of+nitrate+anion+on+carbon%2C+KM%2C+and+KMS+adsorbents%0D%0Aoptimum+at+pH+7%2C+9%2C+9+meanwhile+for+CBB+all+three+adsorbents+optimum+at+pH+7.%0D%0AOptimum+contact+time+of+carbon%2C+KM%2C+and+KMS+with+nitrate+anion+each+optimum%0D%0Aat+120%2C+120%2C+and+15+minutes+meanwhile+for+CBB+optimum+at+30%2C+150%2C+and+120%0D%0Aminutes.+Adsorption+kinetics+of+nitrate+anion+and+CBB+on+carbon%2C+KM%2C+and+KMS%0D%0Aadsorbents+tend+to+follow+the+pseudo-second+order+kinetic+model+and+adsorption%0D%0Aisotherms+tend+to+follow+the+Freundlich+isotherm+model%2C+except+for+CBB+to+KMS%0D%0Awhich+tend+to+follow+the+Langmuir+isotherm+model.+The+adsorption+capacity+of%0D%0AKMS+in+bicomponent+adsorption+system+is+better+to+adsorb+CBB.+The+highest%0D%0Adesorption+percentage+of+KMS+for+nitrate+and+CBB+both+occurred+at+40%25+ethanol%0D%0Aeluent+which+was+dominated+by+hydrogen+bonds.+The+reusability+of+KMS+up+to+3%0D%0Arepetitions+is+better+for+nitrate+anions+adsorption+with+a+decreasing+percentage+of+Q%0D%0A%3C1%25.%0D%0AKeywords%3A+Adsorption%2C+carbon%2C+rubber+fruit+shell%2C+CBB%2C+nitrates%2C+magnetite%2C%0D%0AAPTES.%0D%0A%0D%0APada+penelitian+ini+telah+dilakukan+sintesis+dan+karakterisasi+karbon+dari+cangkang%0D%0Abuah+karet+(Hevea+brasilliensis)+yang+dimodifikasi+dengan+pelapisan+magnetit%0D%0Auntuk+menghasilkan+karbon+magnetit+(KM)+dan+dilanjutkan+dengan+modifikasi%0D%0Adengan+silan+(3-Aminopropyl)-triethoxysilane+(APTES)+sehingga+dihasilkan+karbon%0D%0Amagnetit+silan+(KMS)+sebagai+adsorben+anion+nitrat+dan+Coomassie+Brilliant+Blue%0D%0A(CBB).+Karakterisasi+pada+adsorben+dilakukan+menggunakan+instrumen%0D%0Aspektrofotometer+Fourier+Transform+Infra-Red+(FTIR)+untuk+mengidentifikasi%0D%0Agugus+fungsi%2C+X-Ray+Diffraction+(XRD)+untuk+mengidentifikasi+tingkat+kristalinitas%2C%0D%0Adan+Scanning+Microscope-Energy+Dispersive+X-Ray+(SEM-EDX)+untuk%0D%0Amengetahui+morfologi+permukaan+dan+mengidentifikasi+komposisi+unsur.+Adsorpsi%0D%0Amonokomponen+anion+nitrat+oleh+karbon%2C+KM%2C+dan+KMS+optimum+masing-masing%0D%0Apada+pH+7%2C+9%2C+9+sedangkan+pada+CBB+ke-3+adsorben+tersebut+optimum+pada+pH+7.%0D%0AWaktu+kontak+optimum+karbon%2C+KM%2C+dan+KMS+dengan+anion+nitrat+masing-masing%0D%0Aoptimum+selama+120%2C+120%2C+dan+15+menit+sedangkan+untuk+CBB%2C+masing-masing%0D%0Aselama+30%2C+150%2C+dan+120+menit.+Data+kinetika+anion+nitrat+dan+CBB+pada+adsorben%0D%0Akarbon%2C+KM%2C+dan+KMS+cenderung+mengikuti+model+kinetika+pseudo+orde+dua+dan%0D%0Aisoterm+adsorpsi+cenderung+mengikuti+model+isoterm+Freundlich%2C+kecuali+CBB%0D%0Aterhadap+KMS+yang+cenderung+mengikuti+model+isoterm+Langmuir.+Kapasitas%0D%0Aadsorpsi+KMS+pada+sistem+bikomponen+cenderung+lebih+baik+dalam+mengadsorpsi%0D%0ACBB.+Persen+desorpsi+tertinggi+KMS+terhadap+anion+nitrat+dan+CBB+terjadi+pada%0D%0Aeluen+etanol+40%25+yang+didominasi+ikatan+hidrogen.+Kemampuan+penggunaan+ulang%0D%0AKMS+hingga+3+kali+pengulangan+lebih+baik+pada+adsorpsi+anion+nitrat+dengan+persen%0D%0Apenurunan+Q+%3C1%25.%0D%0AKata+kunci%3A+Adsorpsi%2C+karbon%2C+cangkang+buah+karet%2C+CBB%2C+nitrat%2C+magnetit%2C%0D%0AAPTES.&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2023-06-05&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F72245%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F72245%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F72245%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Mhd.+Afif+Alim+%2C+Nasution++(2023)+MODIFIKASI+KARBON+DARI+CANGKANG+BUAH+KARET+(Hevea+brasilliensis)+DENGAN+MAGNETIT+DAN+(3-AMINOPROPYL)+TRIETHOXYSILANE+(APTES)+UNTUK+ADSORPSI+ANION+NITRAT+DAN+COOMASSIE+BRILLIANT+BLUE+D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