Open AccessFABRIKASI SENSOR SERAT OPTIK PLASTIK UNTUK DETEKSI ION LOGAM MERKURI DALAM AIR
Author(s) -
Ida Vaeruza,
Kukuh Eka Kurniansyah,
Faqih Darma,
Ian Yulianti
Publication year - 2019
Publication title -
komunikasi fisika indonesia/komunikasi fisika indonesia
Language(s) - English
Resource type - Journals
eISSN - 2579-521X
pISSN - 1412-2960
DOI - 10.31258/jkfi.16.2.123-129
Subject(s) - materials science , optical fiber , fiber optic sensor , mercury (programming language) , ion , coating , analytical chemistry (journal) , optoelectronics , fiber , optics , chemistry , composite material , physics , chromatography , organic chemistry , computer science , programming language
The presence of mercury ions is a serious threat to human health and environment. Water consumption containing mercury is very dangerous for human healt. The purpose of this work is to design a heavy metal sensor ion using plastic optical fiber to detect mercury ions in water. The sensor was fabricated by coating the optical fiber by chitosan through dip-coating technique. There are three diameter of optical fiber sensor that was fabricated, which are 1087.64 μm (sensor A), 1691.64 μm (sensor B) and 1736.33 μm (sensor C). Sensor characterization was done by connected the tip of plastic optical fiber to an LED and the other tip was connected to a photodioda. The results show that sensitivity of sample A is 0.32 mA/ppm, sample B is 0.56 mA/ppm and sample C is 0.64 mA/ppm. In terms of respone time, it is shown that thr respon time for sensor A, B and C are 22 s, 42.5 s and 86 s respectively.