BULETIN FISIKA
Vol 15 No 1 (2014): BULETIN FISIKA

EFEK LAMA PAPARAN RADIASI UV-C TERHADAP KARAKTERISTIK I-V MEMBRAN KITOSAN

Putu Erika Winasri (Udayana University)
Ni Nyoman Rupiasih (Udayana University)
Made Sumadiyasa (Udayana University)



Article Info

Publish Date
01 Feb 2014

Abstract

An investigation of the effects of UV exposure particularly UV-C to the characteristics of the currentvoltage(I-V) of chitosan membrane 2% has been done. The electrolyte solution was NaCl withvarious concentration of 0.1 mM and 10 mM, time exposure 10, 20, 40 and 60 minutes, and theincreasing currents from 19 -24 ?A with increment of 0.5 ?A. Transport process is done by using amodel cell membrane consist of 2 chambers. The voltage difference of membrane is measured using acalomel electrode. In this study, chitosan membranes were exposure to UV radiation for 0-60 minutes.The I-V characterization is done by the current clamp method. The solution used is NaCl solution withthe concentration ratio of the both chambers (C1:C2) was 0.1 mM : 0.1 mM and the given currentswere from 19 -24 ?A with increment of 0.5 ?A. From the observations obtained, the I-V characteristicgraphs showed Ohmic's region, it has not showed limiting current density and overlimiting currentregion. The I-V characteristic graphs also shows that ion transport in NaCl solution (voltage can bemeasured) in the chitosan membrane system occurred at a certain current value. The increased oftime exposures resulted in a decrease of conductance of chitosan membrane to ions in NaCl solution.

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Journal Info

Abbrev

buletinfisika

Publisher

Subject

Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology Physics

Description

The Journal aims to promote the theory and application in the field of physics, and to encourage a vigorous dialogue between scholars and researchers all over the world. It presents original research articles, letters as well as review articles, publishes the latest achievements and developments in ...