Chikaatesa, Tabita (2019) Pengaruh Jenis dan Konsentrasi Senyawa Pembawa dalam Polymer Inclusion Membrane (PIM) terhadap Transpor Cr(VI). Sarjana thesis, Universitas Brawijaya.
Abstract
Tujuan dari penelitian ini adalah mempelajari pengaruh jenis dan konsentrasi senyawa pembawa dalam polymer inclusion membrane (PIM) terhadap transpor Cr(VI). PIM terbuat dari 60% polyvinyl chloride (PVC), 20% dioctyl phtalate (DOP) dan senyawa pembawa dalam tetrahydrofuran (THF). Senyawa pembawa yang dipelajari adalah trioctylmethyl-ammonium chloride (TOMAC), trioctylamine (TOA) dan campuran TOMAC dan TOA dengan perbandingan konsentrasi 4:1. Konsentrasi senyawa pembawa divariasi pada 10%, 15%, 20%, 25% dan 30% (w/w). Transpor dilakukan dengan menggunakan sel difusi dengan fasa umpan adalah larutan K2CrO4 50 mg/L yang diatur pada pH 4. Fasa penerima adalah NaOH 0,05 M. Kedua fasa diaduk selama 180 menit dengan kecepatan 150 rpm. Larutan pada kedua fasa diambil sebanyak 1 mL setiap 30 menit. Konsentrasi Cr(VI) dalam cuplikan dianalisis secara spektrofotometri sinar tampak menggunakan pereaksi difenilkarbazida pada panjang gelombang 541 nm. Hasil penelitian menunjukkan bahwa PIM dengan senyawa pembawa TOMAC lebih efektif untuk transpor Cr(VI) daripada dengan menggunakan senyawa pembawa TOA atau campuran TOMAC dan TOA (4:1). Semakin tinggi konsentrasi TOMAC, semakin tinggi efisiensi transpor Cr(VI). Transpor Cr(VI) optimal pada konsentrasi 25% (w/w) dengan nilai efisiensi transpor 52,70%.
English Abstract
The purpose of this research was to studied the effect of carriers nature and its concentration for polymer inclusion membrane (PIM) on the transport of Cr(VI). PIM was made of 60% polyvinyl chloride (PVC), 20% dioctyl phtalate (DOP) and carrier compounds in tetrahydrofuran (THF). The studied carriers were trioctylmethyl-ammonium chloride (TOMAC), trioctylamine (TOA) and the mixture of TOMAC and TOA at concentration ratio of 4:1. The concentration of carriers was varied at 10%, 15%, 20%, 25%, 30% (w/w). Transport was conducted by using a diffusion cell with the feed phase was K2CrO4 50 mg/L solution at pH 4. The stripping phase was NaOH 0.05 M. Both phases were stirred for 180 minutes at 150 rpm. The solutions in both phases were taken as much as 1 mL every 30 minutes. The concentration of Cr(VI) in the samples was analyzed by spectrophotometric method using diphenylcarbazide at wavelength of 541 nm. The result showed that PIM by using TOMAC as carrier was more effective to transport Cr(VI) than the used of TOA or the mixed of TOMAC and TOA (4:1) as carrier. The higher concentration of carrier, the higher Cr(VI) transport efficiency. Transport Cr(VI) was optimally occurred at concentration of 25% (w/w). At condition, the transport efficiency of Cr(VI) was 52.70%.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/MIPA/2019/3/051910705 |
| Uncontrolled Keywords: | Cr(VI), polymer inclusion membrane(PIM), TOMAC, trioctyl amine (TOA). |
| Subjects: | 500 Natural sciences and mathematics > 547 Organic chemistry > 547.03 Oxy and hydroxy compounds |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 24 Aug 2020 07:33 |
| Last Modified: | 28 Mar 2022 01:40 |
| URI: | http://repository.ub.ac.id/id/eprint/176627 |
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