Browsing Undergraduate Theses by Advisor "Andriayani"
Now showing items 1-20 of 36
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Bentonit Terpilar TiO2 sebagai Katalis Pembuatan Hidrogen dalam Pelarut Air pada Hidrogenasi Glukosa Menjadi Sorbitol dengan Katalis Nikel
(Universitas Sumatera Utara, 2009)Glucose hydrogenation using water at solvent was happened through two step. First, water was reduced to hydrogen and oxygen gases by TiO2 pillared bentonite. Second, hydrogen that produced was used to reduce glucose into ... -
Hidrogenasi Glukosa Menjadi Sorbitol dengan Menggunakan Katalis Pd/C dalam Pelarut N-Heksan Kering
(Universitas Sumatera Utara, 2010)Hydrogenation of glucose has been done using molecular hydrogen catalyzed by heterogeneous catalysts Pd/C in N-hexane solvent dried at a temperature of 1600C and pressures of 200 psi (13.52 atm) to produce sorbitol ... -
Impregnasi Fe/Cu pada Material Mesopori Silika Template Metil Ester Risinoleat sebagai Adsorben-Reduktor Kromium (VI)
(Universitas Sumatera Utara, 2024)Chromium is one of the heavy metals that is widely used in industrial activities. Chromium metal (especially hexavalent chromium) has high toxicity. Nowadays, adsorption-reduction technique is the most efficient treatment ... -
Impregnasi Fe/Ni Pada Mesopori Silika Template Metil Ester Risinoleat Sebagai Adsorben Cr6+ Dengan Variasi Penambahan Massa Fe
(Universitas Sumatera Utara, 2025)Chromium, especially Cr6+, is a heavy metal that is often used in industry can pollute the aquatic environment, and has high toxicity for humans, therefore, Cr6+ must be removed from the aquatic environment. Mesoporous ... -
Karbonilasi Metil Oleat dengan Katalis PdCl2/CuCl2 Menggunakan Aerosil sebagai Penyerap Air
(Universitas Sumatera Utara, 2009)A carbonylation of methyl oleate using PdCl2 as catalyst had been carried out by mixing methyl oleate, PdCl2/CuCl2, HCOOH, CH3OH, THF and aerosil to adsorb the water. The mixture was heated at 50o C and stirred for 2 hours ... -
Oksidasi 1,2,3 Propanatriol dengan Molekul Oksigen Menggunakan Katalis Pd/yAl2-O3 dalam Pelarut Air
(Universitas Sumatera Utara, 2009)Telah dilakukan oksidasi terhadap 1,2,3-Propanatriol dengan menggunakan molekul oksigen yang dikatalisis oleh katalis heterogen Pd/γ-Al2O3 dalam pelarut air menghasilkan asam gliserat ( 32,62 % ). Asam gliserat yang terbentuk ... -
Optimasi Temperatur Kalsinasi Kalsium Karbonat (CaCO3) dari Cangkang Telur Ayam Ras dan Aplikasinya untuk Adsorpsi Ion Logam Mn2+
(Universitas Sumatera Utara, 2023)Research on temperature variations in calcium carbonate (CaCO3) from eggshells of purebred chickens and their application to the adsorption of Mn 2+ metal ions has been carried out. The adsorption ability of the adsorbent ... -
Pemanfaatan Cangkang Kelapa Sawit dalam Sintesis Mesopori Silika dengan Template Gliserol Menggunakan Metode Sol Gel
(Universitas Sumatera Utara, 2023)Synthesis of silica material from oil palm shells as a source of silica and glycerol as a template has been carried out. Silica was extracted by the alkaline method using NaOH solution. Silica powder obtained is white ... -
Pemanfaatan Limbah Serbuk Kaca Bening sebagai Sumber Silikon (Si)
(Universitas Sumatera Utara, 2018)Has done research about increasing the purity of silicon from magnesiothermic glass with time variation. Clear glass obtained from industrial household waste, it’s clear glass bottles and then washed repeatedly while being ... -
Pembuatan Nanosilikon dari Pasir Alam Kecamatan Tanjung Tiram Kabupaten Asahan secara Magnesiotermik dengan Penambahan Natrium Klorida sebagai Penyerap Kalor
(Universitas Sumatera Utara, 2015)The research of synthesis nanosilicon from natural sand from District Tanjung Tiram Regency of Asahan by magnesiothermic method with sodium chloride as calor absorber have been done. The adding of natrium chloride aims ... -
Pembuatan Nanosilikon dari Pasir Alam secara Magnesiotermik dengan Penambahan Kalium Klorida.
(Universitas Sumatera Utara, 2017)The research of synthesis nanosilicon from natural sand by magnesiothermic method with the additional of potassium chloride with ultrasonic. The Sand is initially extracted with HCl and H2SO4 and analyzed XRD. Then ... -
Pengaruh Penambahan Asam Oleat dalam Sintesis Magnesium Silikat Nanopartikel dari Silika Sekam Padi
(Universitas Sumatera Utara, 2017)Nanoparticle of magnesium silicate from silica rice husk use oleic acid has been synthesized. This synthesis is carried out by extracting silica from rice husk with alkalis method using NaOH 10% and then added MgO. ... -
Pengaruh Penambahan Asam Oleat dan Asam Palmitat terhadap Ukuran Pori Silika dari Hasil Ekstraksi Silika Abu Boiler Pabrik Minyak Kelapa Sawit
(Universitas Sumatera Utara, 2017)Extraction of silica has made from boiler ash processing of palm oil by using varying concentrations of NaOH to increase yield of silica in a row from 7 N, 8N, and 9 N. and the obtained results are recpectively as 39.20%, ... -
Pengaruh Penambahan Asam Oleat dan Asam Palmitat terhadap Ukuran Pori Silika dari Hasil Ekstraksi Silika Abu Boiler Pabrik Minyak Kelapa Sawit.
(Universitas Sumatera Utara, 2017)Extraction of silica has made from boiler ash processing of palm oil by using varying concentrations of NaOH to increase yield of silica in a row from 7 N, 8N, and 9 N. and the obtained results are recpectively as39.20%, ... -
Pengaruh Penambahan Carboxymethyl Celullose sebagai Template terhadap Porositas Material Kalsium Silikat
(Universitas Sumatera Utara, 2022)Research has been conducted on the formation of pore calcium silicate material with the addition of Carboxymethyl Cellulose as a template. Synthesis of Calcium Silicate is done by reacting water glass with Carboxymethyl ... -
Pengaruh Penambahan Garam Kalium Halida (Kcl dan KBr) terhadap Karakteristik Nanosilikon dari Pasir Alam secara Magnesiotermik
(Universitas Sumatera Utara, 2018)Nanosilicon synthesis from natural sand has been carried out by adding each KCl and KBr salts to ultrasonication magnesiothermically. Silica was extracted from natural sand with the addition of NaOH10 N and HCl6 N and ... -
Pengaruh Penambahan Gelatin dalam Sintesis Magnesium Silikat dari Silika Limbah kaca
(Universitas Sumatera Utara, 2018)Synthesis of magnesium silicate from glass silica waste using gelatin has been carried out. This synthesis was carried out by extracting silica from glass waste with alkaline method using 10% NaOH and then adding MgCl2. ... -
Pengaruh Penambahan Polietilen Glikol (PEG) dalam Sintesis Kalsium Silikat (CaSiO3) dari Silika Abu Vulkanik Gunung Sinabung
(Universitas Sumatera Utara, 2018)Calcium Silicate synthesis has been done from volcanic ash of Sinabung Mountain silica with and without using polyethylene glycol astemplate. This synthesis is done by extracting silica from volcanic ash of Sinabung Mountain ... -
Pengaruh Perbandingan Asam Oleat sebagai Template dengan Tetraetilortosilikat (TEOS) sebagai Sumber Silika Terhadap Porositas Material Mesopori Silika
(Universitas Sumatera Utara, 2018)Mesoporous silica material has been synthesized using tetraethylortosilicate (TEOS) as a source of silica, oleic acid as template and 3-aminopropyltrimethoxysilane (APMS) as co-structure directing agents (CSDA). The synthesis ... -
Pengaruh Temperatur Kalsinasi pada Ekstraksi Silika dari Abu Cangkang Kelapa Sawit
(Universitas Sumatera Utara, 2016)Has conducted research on the effect of temperature on the extraction of silica from the ashes of palm kernel shells. ash shell in purified with hydrochloric acid which aims to minimize other minerals contained in the ...