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All Journal Pillar of Physics: Jurnal Berkala Ilmiah Fisika
- Yulkifli
Department of Physics, Universitas Negeri Padang, West Sumatera, Indonesia
Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Use of TCS3200 sensor to identify heavy metal materials Kelvin Septa Dewantara; - Yulkifli
PILLAR OF PHYSICS Vol 13, No 2 (2020)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (267.562 KB) | DOI: 10.24036/10900171074

Abstract

v>Heavy metals are natural components that are toxic and can endanger living things even in a very smallconcentration. Water that is polluted by heavy metals in a certain concentration can harm the ecosystem andcan be fatal if entered the human organ system. The principle of heavy metal concentration measurement usingthe TCS3200 sensor is a sensor will sense the color gradation from dissolved heavy metal. This color gradationwill be calibrated to a concentration of dissolved heavy metals. Heavy metal material that is used for thisresearch were FeCl3, NiSO4, and CuSO4. Based on the analysis results, there were 4 results obtained. The firstone was performance specification from this instrument consists of a TCS3200 sensor, black acrylic box for thesensor placement. In the black acrylic box, there was a hole sample for sample placement. The second result wasthe effect of changing in heavy metal concentration to sensors output data is proportional. The third result wasan instrument calibrating with existing data. The fourth result was accuracy and precision from the instrumentwhich have been calibrated. For FeCl3 material, the average accuracy was 95.5% and precision was 98.7%.For NiSO4, the average accuracy was 96% and precision was 98.3%. For CuSO4 material, the averageaccuracy was 99.7% and precision was 99.8%.
Pengaruh komposisi CoFe2O4 terhadap sifat magnetik nanokomposit CoFe2O4/PVDF yang disintesis dengan metode sol gel (The effect of CoFe2O4 composition on the magnetic properties of the CoFe2O4 / PVDF nanocomposites synthesized by the sol gel method) Sovia Yulianti; - Ramli; - Yulkifli; Yenni Darvina
PILLAR OF PHYSICS Vol 13, No 1 (2020)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.011 KB) | DOI: 10.24036/7589171074

Abstract

Cobalt Ferrite (CoFe2O4) is a magnetic material that has high coercivity, magnetic properties, and has electrical resistivity and high saturation magnetization, very suitable for applications in the field of magnetic, magnetic sensors, magnetic sensor constituents, biomedical materials, Magnetic Resonance Imaging (MRI) and hypertamia. The purpose of the survey is to explain the composition of the CoFe2O4 composition on the magnetic properties of the CoFe2O4 / PVDF nanocomposites synthesized by the Sol-Gel Method. There are three research results from vsm test data on hysteresis curves. First, the magnetization saturation data of each variation obtained results of 2.07 memu, 0.97 memu, 2.18 memu, 1.07 memu, and 0.91 memu. Second, the Remanent Magnetization data obtained results are 0.41 memu, 0.28 memu, 0.35 memu, 0.27 memu, and 0.16 memu. Third, the Medan Coercivity data is 208.31 Oe, 293.42 Oe, 163.20 Oe, 335.88 Oe, and 93.86 Oe.
Co-Authors Kelvin Septa Dewantara Ramli Ramli Sovia Yulianti Yenni Darvina