Analisa Pengaruh Suhu Pembentukan Ikatan Crosslink Antara Polyvinyl Alcohol Dan Citirc Acid Pada Elektroda Karbon Untuk Proses Desalinasi Larutan NaCl

Nulik, Boby Willem (2016) Analisa Pengaruh Suhu Pembentukan Ikatan Crosslink Antara Polyvinyl Alcohol Dan Citirc Acid Pada Elektroda Karbon Untuk Proses Desalinasi Larutan NaCl. Masters thesis, Institut Technology Sepuluh Nopember.

[img]
Preview
Text
1114201001-Master_Thesis.pdf - Accepted Version

Download (1MB) | Preview

Abstract

Telah berhasil disintesa dan dikarakterisasi elektroda karbon untuk sistem Capacitive Deionization (CDI). Elektroda karbon terbuat dari karbon aktif tempurung kelapa dengan binder Polyvinyl Alcohol (PVA) dan asam sitrat sebagai agent dengan metode crosslink. Elektroda karbon difabrikasi dengan variasi suhu pemanasan yakni 100 (T100), 110 (T110), dan 120oC T(120). Uji FTIR menunjukan bahwa tidak ada serapan pada gugus OH, hal ini menandakan telah terjadi ikatan silang pada PVA dan asam sitrat. Pengamatan morfologi menggunakan uji SEM EDX dapat merekam kandungan utama pada elektroda adalah unsur C. Perhitungan nilai kapasitansi dari hasil Cyclic Voltametry (CV) dengan sweep rate 10 mV/s menunjukkan bahwa elektroda T100 mempunyai nilai spesifik kapasitansi terbesar jika dibandingkan dengan elektroda karbon T120 dan T110 dengan nilainya berturut-turut adalah 227.7, 221.4, dan 209.5 mF/g. Dalam kemampuan mengurangi kadar garam 0.1 M NaCl, elektroda karbon T100 mampu mengurangi kandungan NaCl sebesar 52.71 % sedangkan untuk elektrodaT110 diperoleh 35.04% dan pada elektroda T120 memberikan hasil 49.15%. ======================================================================================================= Carbon electrodes have successfully been synthesized and characterized for Capacitive Deionization (CDI). Carbon electrodes were prepared by crosslink method with various cross-link temperatures at 100 (T100), 110 (T110), and 120oC (T120) using an activated carbon from coconut shell with Polyvinyl Alcohol (PVA) as a binder and citric acid as a cross-linking agent. Fourier transform infrared spectroscopy (FTIR) was used to prove cross-linking PVA with citric acid. The results showed that there is no absorption in the OH group, it indicates that there has been a crosslinking in PVA and citric acid. Morphological observation using SEM EDX showed the main content in the electrode was C. Calculation of specific capacitance from Cyclic Voltammetry (CV) at sweep rate of 10 mV/s indicates that the electrode T100 has the largest specific capacitance value when compared with carbon electrodes T120 and T110, with specific capacitance value at 227.7, 221.4, and 209.5 mF/g, respectively. The highest salt-removal percentage value of 0.1 M NaCl can be achieved for carbon electrodes T100 at 52.71% whilst resulted in 35.04 and 49.15% for carbon electrodes T110 and T120, respectively

Item Type: Thesis (Masters)
Additional Information: RTFi 541.372 4 Nul a
Uncontrolled Keywords: capacitive deionization (CDI), elektroda karbon, Polyvinyl Alcohol
Subjects: Q Science > QC Physics
Divisions: Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 03 Mar 2020 06:11
Last Modified: 03 Mar 2020 06:11
URI: https://repository.its.ac.id/id/eprint/75271

Actions (login required)

View Item View Item