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All Journal Urania Jurnal Ilmiah Daur Bahan Bakar Nuklir Berkala Arkeologi
Bangun Wasito
Sekolah Tinggi Teknologi Nuklir–BATAN, Jogyakarta
Materials Science & Nanotechnology Social Sciences

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Effect Of Current, Time, Feed and Cathode Type On Electroplating Process Of Uranium Solution Sigit, Sigit; Widodo, Ghaib; Wasito, Bangun; Basuki, Kris Tri; Fahrunissa, Fahrunissa
Urania : Jurnal Ilmiah Daur Bahan Bakar Nuklir Vol 23, No 1 (2017): Februari 2017
Publisher : website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (499.379 KB) | DOI: 10.17146/urania.2017.23.1.3155

Abstract

Electroplating process of uranyl nitrate and effluent process has been carried out in order to collect uranium contained therein using electrode Pt / Pt and Pt / SS at various currents and times. Material used for electrode were Pt (platinum) and SS (Stainlees Steel). Feed solution of 250 mL was entered into a beaker glass equipped with Pt anode - Pt cathode or Pt anode - SS cathode, then fogged direct current from DC power supply with specific current and time so that precipitation of uranium sticking to the cathode. After the processes completed, the cathode was removed and weighed to determine weight of precipitates, while the solution was analyzed to determine the uranium concentration decreasing after and before electroplating process. The experiments showed that a relatively good time to acquire uranium deposits at the cathode was 1 hour by current 7 ampere, uranyl nitrate as feed, and Pt (platinum) as cathode. In these conditions, uranium deposits attached to the cathode amounted to 74.96% of the original weight of uranium oxide in the feed or 206.5 mg weight. The use of Pt cathode for  uranyl nitrate, SS and Pt cathode for effluent process feed gave uranium specific weight at the cathode of 12.99 mg/cm2, 2.4 mg/cm2 and 5.37 mg/cm2respectively for current 7 ampere and electroplating time 1 hour.Keywords: Electroplating, uranyl nitrate, effluent process, Pt/Pt electrode, Pt/SS electrode
BEBERAPA PERMASALAHAN DAN PENGEMBANGAN METODE PERTANGGALAN RADIOKARBON Wisjachudin, Faisal; Taftazani, Agus; Wasito, Bangun
Berkala Arkeologi Vol. 17 No. 1 (1997)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30883/jba.v17i1.764

Abstract

Experimental works on a research and development of radiocarbon dating have been carried out. On this occasion several problems have to be concerned. These problems include a sampling technique. its handling in the laboratory, the existence of standard reference material contamination, isotopic fractionation , radiocarbon (14C) fluctuation, limitation of samples and data evaluation. In order to solve these problems. there have been established research which applied an improvement technique treatment techniques that regarded the caution of the problems. The experimental results on wood samples which washed and unwashed showed an age differences of 391 years from its true age of about 700 years ago. Delta 13C correction, due to the availability of isotopic fractionation. shows quite significant to be applied to sample having an age of under 30,000 years. A tree ring correction is a correction due to the existence of their previous radiocarbon dating fluctuation was also giving a correction that need to be studied by archaeologist . For that purpose, there was required a better handling better treatment of the samples.
Co-Authors Agus Taftazani Fahrunissa, Fahrunissa Ghaib Widodo Kris Tri Basuki Sigit Sigit Wisjachudin, Faisal