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All Journal Jurnal Pengabdian kepada Masyarakat Urania: Jurnal Ilmiah Daur Bahan Bakar Nuklir
Henny Purwaningsih
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Agriculture, Biological Sciences & Forestry Humanities Economics, Econometrics & Finance Environmental Science Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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PELATIHAN PENYUSUNAN RPP BAHASA INGGRIS DENGAN METODE MONTESSORI BAGI PENGAJAR KB/TK BAITUL MAKMUR Ahimsa Padmanaba Murfi; Zulmy Faqihuddin Putera; Tutuk Widowati; Umi Anis Ro’isatin; Henny Purwaningsih
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 4 No. 4: September 2024
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jabdi.v4i4.8477

Abstract

Language development is an important aspect of early childhood development. This is one of the considerations for many early childhood education institutions, including KB/TK Baitul Makmur, Malang, to teach English to their students. However, the method used has yet to be tested according to the children's natural phase in learning language. This is important to minimize children's difficulties or stress in learning a foreign language. These goals can be achieved by applying the proven Montessori method, and according to the child's cognitive abilities. This workshop aims to enable education practitioners in the kindergarten to develop English learning plans using the Montessori method, especially for children aged 3-6 years
ANALISIS PERILAKU ISOTERM, TERMODINAMIKA, DAN KINETIKA ADSORPSI STRONTIUM MENGGUNAKAN TiO2 – ZEOLIT LAMPUNG M. Fiqri Sholahudin; Henny Purwaningsih; Erlina Noerpitasari; Boybul Boybul; Yanlinastuti Yanlinastuti
Urania: Jurnal Ilmiah Daur Bahan Bakar Nuklir Vol. 29 No. 2 (2023): Urania : Jurnal Ilmiah Daur Bahan Bakar Nuklir
Publisher : Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/urania.2023.29.2.6840

Abstract

After being used in the reactor, nuclear fuel produces several fission products, one of which is strontium (90Sr). Strontium isotopes can be used as raw material for making batteries, but the strontium is still mixed with fission products or other isotope so a separation process is needed. One method of separating strontium is by adsorption. In this research, the Lampung TiO2-zeolite mixture was evaluated for its performance as an adsorbent so that it can be used for strontium adsorption. Lampung Zeolite was initially activated using concentrated sulfuric acid to clean pores that still contained impurities. Then the zeolite is mixed with TiO2 using the stir casting method. The Lampung TiO2-zeolite adsorbent obtained was then characterized using Fourier Transform Infrared (FTIR), X-Ray Diffraction Spectrometer (XRD), and Scanning Electron Microscope (SEM). After that, adsorption tests were carried out using isotherm, thermodynamic and kinetic models. The formation of TiO2-zeolite which was characterized using FTIR spectroscopy was shown by the presence of a Ti-O-Si absorption peak in the Lampung zeolite after TiO2 was added. The results of analysis using XRD show that the Lampung zeolite is clinoptilolite and mordenite, and the TiO2 used has an anatase phase. The results of analysis using SEM indicate that TiO2 is distributed on the surface of the Lampung zeolite. The adsorption isotherm model for the TiO2-zeolite adsorbent fulfills the Langmuir isotherm model. Thermodynamic studies show that the adsorption process is endothermic and not spontaneous, and the kinetics of strontium adsorption follows pseudo second order.
Co-Authors Ahimsa Padmanaba Murfi BOYBUL BOYBUL Erlina Noerpitasari M. Fiqri Sholahudin Umi Anis Ro’isatin Widowati, Tutuk Yanlinastuti Yanlinastuti Zulmy Faqihuddin Putera