Browsing A - Mathematics and Natural Sciences by Title
Now showing items 28-47 of 501
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2019 JKM YuliYana ISOLATION OF STEROID COMPOUNDS IN THE n-HEKSANA FRACTION FROM JARUM TUJUH BILAH LEAVES EXTRACT (Leuenbergeria bleo (Kunth) D.C.)
(2019-11-01)This study aims to find secondary metabolites isolated from the leaves of the Jarum Tujuh Bilah (Leuenbergeria bleo (Kunth) D.C.). The method used was maceration, fractionation and column chromatography and was identified ... -
2019 prosiding snk dian DEGRADASI METILEN BIRU DENGAN METODE FOTOKATALITIK BERDASARKAN VARIASI BERAT KATALIS ZEOLIT-WO3
(2019)Modifikasi zeolit alam dengan bahan semikonduktor WO3 yang digunakan sebagai katalis untuk reaksi fotokatalisis zat warna metilen biru telah dilakukan. Tahapan penelitian meliputi preparasi zeolit, aktivasi zeolit dengan ... -
2019 prosiding snk jaka SINTESIS KOMPOSIT TiO2/WO3/SiO2 MENGGUNAKAN ABU SEKAM PADI SEBAGAI SUMBER SILIKA
(2019)Telah dilakukan penelitian tentang sintesis komposit TiO2/WO3/SiO2 dengan abu sekam padi sebagai sumber silika. Sintesis dilakukan dengan metode sol-gel-hidrotermal dengan perbandingan mol TiO2:WO3 1:0,5. Karakterisasi ... -
2020 Biodiesel from NiSO4 and rice husk ash
(2020-06-02)As one of the promising feedstocks for the development of biodiesel, palm fatty acid distillate (PFAD) has weaknesses such as the high free fatty acid (FFA) and water content. In order to overcome the weaknesses, the ... -
2020 IOP Conf. Ser. Mater. Sci. Eng Ultrasound Assisted the Degradation of Methylene Blue Using WO3-Deoiled Spent Bleaching Earth as a catalyst
(2020)Spent Bleaching Earth (SBE) that has been impregnated with WO3 can degrade methylene blue through sonocatalytic. The stages of this research are SBE preparation, activation, WO3-SBE modification through wet impregnation ... -
2020 J Atomik Damianus CORRELATION OF Pb METAL ION LEVELS ON PROTEIN CONCENTRATION IN CRUSH CONSTRUCTION (Gafrarium tumidium) TAKEN IN THE COAST OF BONTANG, EAST KALIMANTAN
(2019-11-07)Research on the correlation of Pb metal ion levels to protein content in crush clams (Gafrarium tumidium) taken at the coast of the East Kalimantan Rhino Estuary has been conducted. This study aims to determine the levels ... -
2020 J Atomik Karrina STUDY ON PHOTODEGRADATION ACTIVITY OF RHODAMINE B BY WO3/TIO2/SIO2 COMPOSITES IN VARIOUS MATERIAL WEIGHT CONDITION
(2020-03-25)A study on photodegradation activity of Rhodamine B by WO3/TiO2/SiO2 composites in various material weight condition has been conducted. The photocatalytic process was carried out in a closed reactor equipped with visible ... -
2020 prosiding snk ririn THE PREPARATION OF ACTIVATED CHARCOAL FROM CANE WASTE AND ITS APPLICCATION AS AN ADDITIVE OF RED COLOR FROM THE WASTE DYEING YARN WEAVING SARONG SAMARINDA
(2020)The research about preparation of activated charcoal from bagasse and its application as an adsorbent for red dye from the waste weaving of the sarong in Samarinda has been conducted. Determination of the surface area ... -
2021 App Nanosci in press Exploitation of cost‑effective renewable heterogeneous base catalyst from banana (Musa paradisiaca) peel for effective methyl ester production from soybean oil
(2021-06)Biodiesel is one of the biofuel alternatives obtained from vegetable oils and animal fats, currently being used globally to lessen environmental pollutions. In this research investigation, waste banana peels impregnated ... -
2021 Applied Nanoscience Embong Enhanced biodiesel production via esterification of palm fatty acid distillate (PFAD) using rice husk ash (NiSO4)/SiO2 catalyst
(2021-06)Waste or low-cost feedstock utilization for preparing renewable energy is a noble effort towards a greener environment. In this work, palm fatty acid distillate (PFAD), which is usually transacted at a concession rate ... -
2021 JBAT Preparation of Dye-Sensitized Solar Cell (DSSC) Using TiO2 and Mahkota Dewa Fruit (Phaleria Macrocarpa (Scheff) Boerl.) Extract
(2021-06)A dye sensitized solar cell (DSSC) is a low-cost solar cell with attractive features. DSCC contains of photo electrode, dye, electrolyte, and counter electrode with photo electrochemical system. The aim of this research ... -
2021 JKM audy COMPUTATIONAL STUDY OF ZEOLITE LTA ( LINDE TYPE A) INTERACTION WITH ALKALINE CATION (Li+, Na+, K+) USING MOLECULAR MECHANIC METHOD
(2021-07-05)Study of computation on zeolite LTA (Linde Type A) interaction with alkaline cation (Li+, Na+, K+) using mechanical moleculer method was conducted. Data processing was conducted computationally using Hyperchem 7.0 with ... -
2021 JKM wahyuni PREPARATION OF WO3-ZnO COMPOSITES BY SOLID STATE REACTION AND THEIR CHARACTERIZATION
(2020-11-01)The preparation of WO3-ZnO composites through the solid state reaction has been conducted. The research stages included mixing WO3 and ZnO solids with the addition of polyvinyl alcohol, drying, sieving and heating. WO3 ... -
2021 MAEJO Biodiesel Biodiesel (Methyl Esters)
(2021-04-07)Biodiesel, an environmentally friendly biomass-based fuel, is gaining popularity globally as a cost-effective way to meet rising fuel demand. However, the high cost of raw materials and catalysts continues to drive up ... -
2021 Prosiding AIP Conference Proceedings perak nanopartikel
(2021-04-02)Nanoparticles, especially the silver nanoparticles (AgNPs), have been widely used in different biomedical applications and nanotechnology fields. Bioreduction of silver nitrate (AgNO3) for the biosynthesis of AgNPs can ... -
2021 Prosiding ICTROPS diana Synthesis of Silver Nanoparticle Using Bioreductor Method from Cempedak (Artocarpus integrifolius l. f) Bark Extract
(2021-10-27)Synthesis of silver nanoparticle using bioreductor method from cempedak (Artocarpus integrifolius L. f) bark extract has been conducted. Steps in this research performed with synthesis of silver nanoparticle using ... -
2021 prosiding SNK ainun SYNTHESIS COMPOSITE Zn-Fe3O4/WO3 AND THEIR APPLICATION IN PHOTOCATALYST
(2021)Synthesis of Fe3O4-ZnO composite material was prepared and characterized using instrumentation and its application to photocatalytically degradation of methylene blue has been carried out. The stages of this research are ... -
2021 prosiding SNK yusniar SYNTHESIS OF SILVER NANOPARTICLES USING ASCORBIC ACID AS REDUCTORS
(2021)Synthesis of silver nanoparticles using ascorbic acid reductant has been carried out. The purpose of this study was to determine the synthesis process of silver nanoparticles and to determine the stability of silver na ... -
2021 Prosiding SNKT hendra CORRELATION OF Pb METAL ION LEVELS ON PROTEIN CONCENTRATION IN BLOOD CONSTRUCTION (Anadara granosa) TAKEN IN THE COAST OF MUARA BADAK, EAST BORNEO
(2021)Research on the correlation of Pb metal ion levels to protein content in blood clams (Anadara granosa) taken at the coast of the East Kalimantan Rhino Estuary has been conducted. This study aims to determine the levels ...