Sintesis Dan Karakterisasi Matriks Membran Tercampur Berbasis Eceng Gondok (Eichhornia crassipes)/ Fe3O4/ Selulosa Asetat Pada Aplikasi Adsorpsi Zat Warna

Satyana, Delta Adi (2024) Sintesis Dan Karakterisasi Matriks Membran Tercampur Berbasis Eceng Gondok (Eichhornia crassipes)/ Fe3O4/ Selulosa Asetat Pada Aplikasi Adsorpsi Zat Warna. Other thesis, Institut Teknologi Sepuluh November.

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Abstract

Mekanisme penghilangan polutan metilen biru melalui membrane absorben akan diselidiki. Material yang digunakan pada penelitian ini ialah Fe3O4, mikrokristalin selulosa yang berasal dari eceng gondok, dan selulosa asetat yang mana percampuran antara ketiganya disebut dengan membran matrix tercampur Fe-MKSEG/SA. Pada penelitian yang akan dilakukan ini, material membran komposit akan dibuat berdasarkan hybrid filler Fe3O4 dengan mikrokristalin selulosa eceng gondok (MKS-EG) dan matriks polimer yang akan digunakan adalah polimer selulosa asetat (SA). MKS-EG diperoleh dengan proses isolasi, selanjutnya metode kopresipitasi digunakan untuk membuat Fe-MKSEG, selanjutnya pada tahap akhir dilakukan metode inversi fasa untuk pembuatan membrane komposit Fe-MKSEG/SA. Isolasi MKS-EG telah berhasil menunjukkan karakteristik mikrokristalin selulosa pada puncak difraksi XRD 2θ = 15,70o dan 22,29o. Komposit serbuk Fe-MKSEG dalam 3 variasi jenis prekursor melalui metode kopresipitasi juga berhasil menunjukkan karakteristik mikrokristalin selulosa pada puncak difraksi XRD 2θ = 22,54o; 22,72o ; dan 22,79o dan menunjukkan karakteristik Fe3O4 pada 2θ = 35,54o ; 35,72o ; dan 35,65o. Ketiga variasi Fe-MKSEG menunjukkan keberhasilan dalam munculnya gugus fungsi C-O, dan C-H yang merepresentasikan keberadaan selulosa dan Fe-O pada pengujian FTIR. Selanjutnya variasi SA 0,5 ; 1 ; dan 1,5% ditambahkan pada Fe-MKSEG [1], Fe-MKSEG [2], dan Fe-MKSEG [3] telah berhasil disintesis dengan penampakan gugus fungsi C-O asetil, C=O, dan CH3 yang mengindikasikan keberadaan selulosa dan gugus fungsi Fe-O pada pengujian FTIR. Pada pengujian kinerja membran, nilai maksimum pengujian fluks air terdapat pada sampel Fe-MKSEG [1]/ SA 1% dengan nilai 299,1 L/m2h, sedangkan nilai rejeksi maksimum terdapat pada sampel Fe-MKSEG [1]/ SA 0,5% dengan nilai 90,07%. Ukuran pori membran Fe-MKSEG/ SA yang diperoleh bernilai > 100 nm. Pengkompositan membrane Fe-MKSEG/ SA mampu menurunkan nilai sudut kontak membran SA murni (<68,9o). Hal ini menunjukkan bahwa Fe-MKSEG/ SA bersifat hidrofilik dan cocok digunakan sebagai membran adsoben pada aplikasi penghilangan polutan metilen biru.
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The mechanism of methylene blue pollutant removal through absorbent membranes will be investigated. The materials used in this study are Fe3O4, microcrystalline cellulose derived from water hyacinth, and cellulose acetate, where the mixture of the three is called a mixed matrix membrane Fe-MKSEG/SA. In this study, the composite membrane material will be made based on a hybrid filler Fe3O4 with microcrystalline cellulose from water hyacinth (MKS-EG) and the polymer matrix used is cellulose acetate (SA) polymer. MKS-EG is obtained by an isolation process, then the coprecipitation method is used to make Fe-MKSEG, then in the final stage the phase inversion method is carried out to make the Fe-MKSEG/SA composite membrane. Isolation of MKS-EG has successfully shown the characteristics of microcrystalline cellulose at the XRD diffraction peaks of 2θ = 15.70o and 22.29o. Fe-MKSEG powder composite in 3 variations of precursor types through the coprecipitation method also successfully showed the characteristics of microcrystalline cellulose at the XRD diffraction peaks of 2θ = 22.54o; 22.72o; and 22.79o and showed the characteristics of Fe3O4 at 2θ = 35.54o; 35.72o; and 35.65o. The three variations of Fe-MKSEG showed success in the emergence of C-O, and C-H functional groups which represent the presence of cellulose and Fe-O in FTIR testing. Furthermore, variations of SA 0.5; 1; and 1.5% added to Fe-MKSEG [1], Fe-MKSEG [2], and Fe-MKSEG [3] have been successfully synthesized with the appearance of C-O acetyl, C=O, and CH3 functional groups indicating the presence of cellulose and Fe-O functional groups in FTIR testing. In the membrane performance test, the maximum value of the water flux test was found in the Fe-MKSEG [1]/ SA 1% sample with a value of 299.1 L/m2h, while the maximum rejection value was found in the Fe-MKSEG [1]/ SA 0.5% sample with a value of 90.07%. The pore size of the Fe-MKSEG/SA membrane was obtained > 100nm. The Fe-MKSEG/ SA membrane composite was able to reduce the contact angle value of the pure SA membrane (<68.9o). This shows that Fe-MKSEG/ SA is hydrophilic and suitable for use as an adsorbent membrane in methylene blue pollutant removal applications.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Fe3O4, metilen biru, mikrokristalin selulosa, selulosa asetat, membran matrix tercampur; Fe3O4, methylene blue, microcrystalline cellulose, cellulose acetate, mixed matrix membrane
Subjects:	Q Science > QD Chemistry > QD320 Cellulose. Hydrolysis
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Delta Adi Satyana
Date Deposited:	13 Aug 2024 04:10
Last Modified:	29 Aug 2024 07:20
URI:	http://repository.its.ac.id/id/eprint/115099

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