?url_ver=Z39.88-2004&rft_id=1817011097&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=SINTESIS+DAN+KARAKTERISASI+HIDROGEL+DARI%0D%0AMIKROSELULOSA+LIMBAH+DAUN+NANAS+(Ananas+comosus)%0D%0ADENGAN+KITOSAN-GLUTARALDEHID+SEBAGAI+ADSORBEN%0D%0ALOGAM+BERAT+Pb+DAN+Zn&rft.creator=RAMAH+NIA+%2C+FALIHA&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.description=Daun+nanas+merupakan+salah+satu+spesies+dari+famili+bromeliaceae+yang+memiliki+nama+latin+Ananas+comosus+yang+dimanfaatkan+sebagai+serat+dalam+industri+tekstil.+Dalam+serat+nanas+terkandung+selulosa+sekitar+62%2C9%25+-+65%2C7%25.+Selulosa+sebagai+alternatif+dalam+produksi+hidrogel+dengan+modifikasi+polimer+kitosan+untuk+peyerapan+logam+berat+karena+sifatnya+yang+tidak+larut+air+namun+ramah+lingkungan.+Tujuan+penelitian+ini+yaitu+mengetahui+morfologi+hidrogel+mikroselulosa+limbah+daun+nanas%2C+mengetahui+volume+glutaraldehid+terbaik%2C+dan+kemampuanya+dalam+penyerapan+pada+ion+Pb2%2B+dan+Zn2%2B.+Tahapan+penelitian+meliputi+persiapan+sampel%2C+isolasi+selulosa%2C+sintesis+hidrogel%2C+pengujian+derajat+ikat+silang%2C+rasio+swelling%2C+analisis+FTIR+untuk+analisa+gugus+fungsi%2C+Analisis+SEM+untuk+melihat+morfologi+hidrogel%2C+pengaplikasian+hidrogel+dalam+penyerap+ion+Pb2%2B+dan+dan+Zn2%2B%2C+serta+uji+nilai+serapan+menggunakan+SSA+dan+penentuan+pola+isoterm+adsorbsi+untuk+ion+Pb2%2B+dan+ion+Zn2%2B.+Hasil+penelitian+menunjukkan+bahwa+hydrogel+dengan+variasi+terbaik+dalam+penyerapan+air+yaitu+pada+variasi+glutaraldehid+1+mL+dengan%2C+persentase+rasio+swelling+sebesar+1730%25.dan+nilai+derajat+ikat+silang+sebesar+16%2C08%25.+Gugus+fungsi+yang+teridentifikasi+yaitu+C%3DO+pada+puncak+1714+dari+glutaraldehid+dan+gugus+NH3+pada+puncak+1670.+Bentuk+morfologi+hydrogel+yang+tertutup+setelah+terjadi+adsorpsi+oleh+H2O.+Hidrogel+yang+diinteraksikan+dengan+ion+Pb2%2B+menunjukkan+nilai+adsorpsi+sebesar+9%2C13+mg%2Fg+sedangkan+pada+logam+Zn2%2B+sebesar+10%2C65+mg%2Fg.+Pola+Isoterm+yang+berlaku+pada+adsorbat+logam+Pb2%2B+yaitu+isoterm+Langmuir%2C+Sedangkan+pada+logam+Zn2%2B+berlaku+isoterm+Freundlich.%0D%0A%0D%0AKata+kunci%3A+Ananas+comosus%2C+Mikroselulosa%2C+Hidrogel%2C+Kitosan%2C+Glutaraldehid%2C+Langmuir%2C+Freundlich%2C%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0APineapple+leaves+are+one+of+the+species+of+the+bromeliaceae+family+which+has+the+Latin+name+Ananas+comosus+which+is+used+as+fiber+in+the+textile+industry.+Pineapple+fiber+contains+about+62.9%25+-+65.7%25+cellulose.+Cellulose+as+an+alternative+in+the+production+of+hydrogels+with+chitosan+polymer+modification+for+heavy+metal+absorption+because+of+its+water+insoluble+but+environmentally+friendly.+The+purpose+of+this+study+was+to+determine+the+morphology+of+pineapple+leaf+waste+microcellulose+hydrogels%2C+determine+the+best+volume+of+glutaraldehyde%2C+and+its+ability+to+absorb+Pb2%2B+and+Zn2%2B+ions.+The+research+stages+include+sample+preparation%2C+cellulose+isolation%2C+hydrogel+synthesis%2C+testing+the+degree+of+crosslinking%2C+swelling+ratio%2C+FTIR+analysis+for+functional+group+analysis%2C+SEM+analysis+to+see+the+morphology+of+hydrogels%2C+application+of+hydrogels+in+adsorbing+Pb2%2B+and+Zn2%2B+ions%2C+as+well+as+testing+the+sorption+value+using+SSA+and+determining+the+adsorption+isotherm+pattern+for+Pb2%2B+and+Zn2%2B+ions.+The+results+showed+that+the+hydrogel+with+the+best+variation+in+water+absorption+is+in+the+variation+of+glutaraldehyde+1+mL+with%2C+percentage+swelling+ratio+of+1730%25%2C+and+the+value+of+the+degree+of+crosslinking+of+16.08%25.+The+identified+functional+groups+are+C%3DO+at+1714+peak+of+glutaraldehyde+and+NH3+groups+at+1670+peak.+The+morphological+shape+of+the+hydrogel+is+closed+after+adsorption+by+H2O.+Hydrogels+interacted+with+Pb2%2B+ions+showed+an+adsorption+value+of+9.13+mg%2Fg+while+on+Zn2%2B+metal+of+10.65+mg%2Fg.+Isotherm+pattern+that+applies+to+Pb2%2B+metal+adsorbate+is+Langmuir+isotherm%2C+while+on+Zn2%2B+metal+Freundlich+isotherm+applies.%0D%0A%0D%0AKeywords%3A+Ananas+comosus%2C+Microcellulose%2C+Hydrogel%2C+Chitosan%2C+Glutaraldehyde%2C+Langmuir%2C+Freundlich%2C&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+&rft.date=2023-06-19&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F73742%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F73742%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F73742%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++RAMAH+NIA+%2C+FALIHA++(2023)+SINTESIS+DAN+KARAKTERISASI+HIDROGEL+DARI+MIKROSELULOSA+LIMBAH+DAUN+NANAS+(Ananas+comosus)+DENGAN+KITOSAN-GLUTARALDEHID+SEBAGAI+ADSORBEN+LOGAM+BERAT+Pb+DAN+Zn.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F73742%2F