MODIFIKASI DAN PEMANFAATAN BENTONIT SEBAGAI AGEN ADSORPSI ZAT WARNA RHODAMIN-…

Research has been carried out on the manufacture of Na-Bentonite which is used as an adsorbent for Rhodamine-B dye. Ca-Bentonite and Na-Bentonite were characterized using Fourier Transform Infra Red (FT-IR), Scanning Electron Microscope (SEM), and X-Ray Diffraction (XRD). The adsorption process of Rhodamine-B dye on the adsorbent was studied through the effect of contact time, adsorbent mass, d…

PENGARUH TEMPERATUR HUMIDIFIER DAN LAJU ALIR HIDROGEN TERHADAP KINERJA MEA PA…

Research on the effect of humidifier temperature and hydrogen gas flow rate on MEA performance of PEMFC has been done. This study used MEA with Pt/C catalyst at the anode and Pd-Co/C at the cathode. The MEA was characterized using the Cyclic Voltammetry (CV) method to determine the Electrochemical Active Surface Area (ECSA) and Electrochemical Impedance Spectroscopy (EIS) to determine the condu…

PENGARUH AKTIVATOR CAO DAN KATALIS KOH PADA PRODUKSI HIDROGEN DENGAN MENGGUNA…

Research on the effect of CaO activator and KOH catalyst on hydrogen production from aluminium waste using aluminum-water method has been successfully done. The aims this research were to determine the performance of calcium oxide activator in hydrogen production at several variables and to evaluate the effect of KOH catalyst and on the rate of hydrogen production. Aluminum waste measuring 60 a…

PREPARASI KOMPOSIT HIDROKSI LAPIS GANDA Ni/Al-SELULOSA DAN APLIKASI SERTA REG…

Synthesis layered double hydroxide (LDH) Ni/Al and preparation Ni/Al-Cellulose layered double hydroxide composite have been carried out. The material obtained was used in the adsorption process of malachite green dyes. The material was analyzed by X-Ray Diffraction (XRD), Fourier Transform-Infra Red (FT-IR), and Scanning Electron Microscopy (SEM). Ni/Al-Cellulose LDH composite was applied in ad…

KOMPOSIT HIDROKSI LAPIS GANDA Ca/Al DAN Mg/Al BERBASIS BIOCHAR SEBAGAI ADSORB…

Fenol merupakan senyawa organik yang bersifat toksik dan sulit didegradasi yang apabila terakumulasi dalam jumlah yang banyak akan membahayakan bagi kesehatan manusia. Upaya untuk mengatasi hal tersebut ialah dengan menggunakan metode adsorpsi dengan menggunakan hidroksi lapis ganda sebagai adsorben yang dimodifikasi dengan biochar. Modifikasi komposit hidroksi lapis ganda Ca/Al dan Mg/Al mengg…

PEMANFAATAN BENTONIT TERMODIFIKASI SEBAGAI AGEN KOAGULASI PENGOLAHAN AIR LIMB…

Modification of Baturaja natural bentonite (Ca-bentonite) was carried out by cation exchange method into Na-bentonite and H2-bentonite. The formation of Na-bentonite is done by adding saturated NaCl to Ca-bentonite which aims to activate Na+ and replace Ca2+ ions. The formation of H2-bentonite was carried out by adding a saturated solution of NH4Cl in Na-bentonite. Characterization using FTIR s…

PENGARUH LAJU ALIR GAS HIDROGEN DAN SUHU HUMIDIFIER TERHADAP KINERJA MEMBRANE…

ABSTRACT EFFECT OF GAS FLOW RATE AND HUMIDIFIER TEMPERATURE ON THE PERFORMANCE OF MEMBRANE ELECTRODE ASSEMBLY (MEA) WITH Ti-Co/C CATALYST ON SINGLE STACK PEMFC Muhammad Prima Utama, supervised by Dr. Dedi Rohendi M.T and Dr. Eliza, M. Si Chemistry, Faculty of Mathematics and Natural Sciences, Sriwijaya University xv + 43 Pages, 10 Pictures, 7 Attachments The research has been carried out on the…

UJI KINERJA MEMBRANE ELECTRODE ASSEMBLY (MEA) DENGAN KATALIS Pd/C PADA LAJU A…

Membrane Electrode Assembly (MEA) performance test study with Pd/C catalyst on gas flow rate and varied PEMFC stack temperature has been conducted. The making of Pd/C catalyst electrodes was carried out by the spraying method. MEA was characterized by Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) methods to obtain an ECSA value 442.54 g/cm2 and a conductivity value of…

ELEKTROLISIS AIR MENGGUNAKAN MEMBRANE ELECTRODE ASSEMBLY (MEA) DENGAN KATALIS…

Test on the electrolysis of water using Membrane Electrode Assembly (MEA) with Cu2O/C catalysts on current and loading catalyst varied has been done. The electrode was characterized using Cyclic Voltammetry (CV) method and Electrochemical Impedance Spectroscopy (EIS). The ECSA and the electrical conductivity maximum value of the electrode with Cu2O/C catalyst was on loading of catalyst 2 mg/cm2…

PENGEMBANGAN PETUNJUK PRAKTIKUM BERBASIS GREEN CHEMISTRY MATERI INDIKATOR pH …

This study aims to produce a product in the form of green chemistry-based practical instructions for pH indicator materials that meet the valid, practical and effective criteria. The development model used is the ADDIE development model and Tessmer formative evaluation. The stages of the ADDIE development model are analysis, design, development, implementation and evaluation modified with forma…

PENGEMBANGAN SOAL HIGHER ORDER THINKING SKILL(HOTS) MATERI KESETIMBANGAN ION …

This research is a research on developing higher-order thinking-based questions that aims to produce chemistry questions in the form of descriptions for class XI SMA/MA on ion balance material and relate the pH of the salt to a valid, reliable and determine the level of difficulty and distinguishing power. The development model used in this research is the Mc.Intire development model with 10 st…

PRODUKSI HIDROGEN DARI AIR MENGGUNAKAN MEMBRANE ELECTRODE ASSEMBLY (MEA) DENG…

Hidrogen merupakan bahan bakar yang mendapatkan banyak perhatian untuk dikembangkan, karena merupakan bahan bakar yang ramah lingkungan dan berpotensi menggantikan bahan bakar fosil. Penelitian mengenai produksi hidrogen dari air menggunakan Membrane Electrode Assembly (MEA) dengan variasi luas permukaan dan jenis stack telah dilakukan. Penelitan ini menggunakan katalis Cu2O/C pada sisi anoda d…

PREPARASI DAN PENGUJIAN ALLOY Na-Al DENGAN KATALIS Co/C SEBAGAI PENYIMPAN HID…

Na-Al alloy using Co/C catalyst at various mass variations of the catalyst was successfully synthesized. The alloy of Na and Al metals are made with a mole ratio (1: 1) and a milling time of 3 hours and a Ball to Powder Ratio (BPR) (10: 1). Based on the characterization results of XRD, the Na-Al + Co / C alloy formed according to JCPDS (No 22-1337) and JCPDS (No 42-1467). Meanwhile, the results…

UJI KINERJA AKTIVATOR KALIUM PADA PRODUKSI HIDROGEN DARI LIMBAH ALUMINIUM DEN…

The performance of potassium activator on hydrogen production from aluminium waste with NaOH catalyst using aluminium-water method has been succesfully done. The aims on this research to determine the performance of potassium activator in hydrogen production on several variables and effect of NaOH catalyst and determine the kinetics aspects of the production rate. Hydrogen production was utiliz…

PRA RANCANGAN PABRIK PEMBUATAN HIDROGEN SIANIDA DENGAN PROSES ANDRUSSOW KAPAS…

Pra rancangan pabrik pembuatan hydrogen sianida dengan proses andrussow kapasitas 18.200 ton/tahun ini direncanakan berdiri pada tahun 2026 di Daerah Tanjung Api-Api, Kabupaten Banyuasin, Sumatera Selatan yang diperkirakan memiliki luas area sebesar 2 Ha. Bahan baku dari pembuatan hidrogen sianida ini adalah natural gas, ammonium hidroksida, dan udara. Proses pembuatan hidrogen sianida ini meng…

PENENTUAN KONDISI OPTIMUM LAJU ALIR GAS HIDROGEN TERHADAP PRODUK HIDROCRACKIN…

The research of jatropha cator oil hydrocracking by using Co/Mo Montmorillonite pillared Ti02 catalayst has been done. The hydrocracking process was conducted at 500 °C of temperature, 2 g of catalyst weight and 0.5; 1.5; 2.5; 3.5 mL/sec of hydrogen gas flow rate variation. The product of hydrocracking was calculated in percentage of non polar, polar, coke, and gas one. The density of the non …

PENGARUH RASIO AIR: ETANOL TERHADAP SIFAT PRODUK HYDROCRACKING CPO MENGGUNAKA…

The research of influence water : ethanol had been done towards of hydrocracking CPO using Ni-Zeolit catalyst. It’s made by Impregnation proces by to dissolved Ni(N03)2.6H20 in to solution water : ethanol with ratios (50 mL : 0 mL, 34 mL : 16 mL, 16 mL : 34 mL and 0 mL : 50 mL). It was stirred diiring 24 hours at the same time dropped by ammonia during first four hours. The impregnationed the…

PENGARUH CAMPURAN PELARUT (AIR: ETANOL) DALAM PEMBUATAN KATALIS NIKEL-KARBON …

The influence mixture of solution (water: ethanol) in production of nickelcarbon catalyst toward the characteristic of hydrocracking CPO product have been done by determined the value heat of combustion product and the analysis of gas chromatography to know the influence of the dissolved variation. Based on the research, has been found that the best variation of dissolved is the dissolved with …

STUDI PENGARUH TEMPERATUR HUMIDIFIER DAN LAJU ALIR HIDROGEN TERHADAP KINERJA …

Studies on the effect of humidifier temperature and hydrogen flow rate on the performance of the Proton Exchange Membrane Fuel Cell (PEMFC) using Pt/C and CoFe/N-C catalysts have been carried out. Membrane Electrode Assembly (MEA) is made of two electrodes, each coated with a Pt/C catalyst on the anode side and CoFe/N-C on the cathode side. The second MEA was made using a Pt/C catalyst both at …

PRODUKSI HIDROGEN DARI LIMBAH ALUMINIUM DENGAN AKTIVATOR NATRIUM MENGGUNAKAN …

Research on the production of hydrogen from aluminum waste with sodium activator using aluminum-water method had been successfully done. This research utilizes the reaction of aluminum using a sodium activator and catalyst. Production of hydrogen using an activator in the form of sodium is carried out with variation of water volume, aluminum particle size, activator mass and temperature. The be…

PRODUKSI HIDROGEN MELALUI ELEKTROLISIS AIR DENGAN MENGGUNAKAN MEMBRANE ELECTR…

Hydrogen production by water electrolysis generally uses precious metal catalysts which can lead decrease of electrode resistance, because operates at high current densities. In this study, TiO2/C and Cu2O/C metal oxide catalysts were used on the cathode side and Pt/C catalyst on the anode. The catalyst made was characterized using X-Ray Diffraction (XRD) method. The XRD analysis results showed…

PREPARASI ALLOY Fe/Al DENGAN VARIASI KOMPOSISI DAN APLIKASINYA SEBAGAI PENYIM…

Fe3Al, FeAl3 and Fe2Al5 alloys for hydrogen storage were successfully synthesized using Mechanical Alloying method with a combination of Fe and Al metals. Alloy Fe/Al made in the composition of Al by 13.87% w/w; 59.18% w/w and 54.71% w/w in a milling time for 5 and 15 hours. Alloys were characterized using XRD and their adsorption desorption performance were tested. Alloys with the largest adso…

Oesophageal pH Monitoring for Gastro-oesphageal Reflux in Infants and Children

Edition

-

ISBN/ISSN

0-471-93387-2

Collation

x, 253 p. : ill,; 24 cm

Series Title

-

Call Number

628.423 Van o

Catalytic Oxidations with Hidrogen Peroxide as Oxidant

Edition

-

ISBN/ISSN

0-7923-1771-8

Collation

vii, 281 p. ; 24 cm

Series Title

-

Call Number

541.3 93 Cat c

FOOD TECHNOLOGY REVIEW No.4, Proteins from Hydrocarbons

Edition

-

ISBN/ISSN

0-8155-0480-2

Collation

viii, 226 p. : ill, ; 24 cm

Series Title

FOOD TECHNOLOGY REVIEW No.4

Call Number

664.024 Gut p

BEST SYNTHETIC METHODS, Hydrogenation Methods

Edition

-

ISBN/ISSN

0-12-605365-0

Collation

xv, 193 p. : ill, ; 24 cm

Series Title

BEST SYNTHETIC METHODS

Call Number

547.23 Ryl h

Pra Rencana Pabrik Pembuatan Dimetil Eter Kapasitas 110.000 Ton/Tahun

Pabrik Dimetil Eter direncanakan berlokasi di Kec. Kramatwatu, Kab. Serang, Banten ini memiliki luas area 6 Ha dengan kapasitas 110.000 ton/tahun. Produksi dilakukan dengan mereaksikan Karbon monoksida dengan Hidrogen menjadi Metanol pada temperatur 240 oC dan tekanan 85 atm. Kemudian Metanol didehidrasi menjadi Dimetil Eter dan Air pada temperatur 129 oC dan tekanan 20 atm. CO (g) + 2H2 (g) …

Produksi gas hidrogen dari limbah aluminium dengan pereaksi HCl dan metode al…

Produksi gas hidrogen dari limbah aluminium dengan pereaksi HCl dan metode aluminium-water telah berhasil dilakukan. Produksi gas hidrogen tertinggi melalui reaksi 0,3 g aluminium dengan 30 mL asam klorida 2 M berlebih terjadi pada suhu 50oC sebesar 348 mL dalam waktu 10 menit. Kondisi terpilih pada reaksi alumunium water dengan aktivator lithium didapat pada massa Al 0,3 g, volume air 3 m…

Kajian teoretis rumusan fungsi gelombang atom hidrogen dalam sistem koordinat…

Telah dilakukan kajian teoretis mengenai perumusan fungsi gelombang atom Hidrogen dalam koordinat parabolik. Atom Hidrogen yang berupa atom sederhana yakni terdiri dari proton dan elektron menjadikan kajian yang ideal dan fondasi dalam mewakili suatu pemahaman mengenai sistem multielektron. Atom Hidrogen merupakan sistem fisis riil dalam memahami persamaan Schrödinger dalam hal ini dikema…