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SINTESIS DAN KARAKTERISASI BASA SCHIFF SALISILALDEHID-2,4 DINITROFENILHIDRAZI…
Synthesis and characterization of Schiff base have been carried out from the reaction of salicylaldehyde and 2,4-dinitrophenylhydrazine (DNPH) using HCl 37% catalyst. 0.495 g (2.5 mmol) DNPH was added to 0.3 mL (2.5 mmol) salicylaldehyde in 50 mL methanol solvent and 1 mL of HCl 37% catalyst was added. The result of the synthesis of Schiff Base is used as a carbonate ion sensor (CO32-) in the s…
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- xvii, 62 hlm.; ilus.; 21 cm
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- T1256802023
SINTESIS DAN KARAKTERISASI SENYAWA BASA SCHIFF DARI 4,4-DIAMINODIFENIL ETER D…
Schiff's base synthesis has been carried out from the reaction between the compounds 4,4-diaminodiphenyl ether and vanillin. The resulting Schiff base then interacts with Cu2+ metal ions. The characterization of Schiff's base was performed using UV-Visible, FT-IR, XRD spectrophotometers, and pH influence. The interaction between Schiff base and Cu2+ metal ions is studied through the influence o…
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- xvii, 47 hlm.; ilus.; 21 cm
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- T1263822023
GREEN SYNTHESIS NANOMAGNETIK Fe3O4 MENGGUNAKAN EKSTRAK DAUN KELOR (Moringa ol…
Congo red is one of the dyes that is often used in the textile industry. However, congo red can cause environmental problems. Fe3O4 is a metal oxides that is magnetic and can be used as a catalyst. Fe3O4 can be synthesized with various methods. But, usually the method that is being used requires a chemical materials as a capping agent and can emits gas poison in the process. Alternative method …
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- xviii, 71 hlm.; ilus.; 21 cm
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- T931672023
MODIFIKASI SiO2/ZrP BERPORI SEBAGAI KATALIS HYDROCRACKING CPO MENJADI BIOGASO…
Crude palm oil can be converted into biogasoline and bioavtur through the hydrocracking process. An acid catalyst is needed to optimize the resulting product. The catalysts used were SiO2/ZrP catalysts, SiO2/ZrP catalysts with the EDTA template method, and SiO2/ZrP catalysts with the EDTA chelate method. This study aims to determine the physicochemical properties through XRD characterization, a…
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- xvi, 78 hlm.; ilus.; 21 cm
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- T900122023
MODIFIKASI SiO2-Zr TERSULFIDASI PADA KONVERSI CRUDE PALM OIL (CPO) MENJADI BI…
One of the Crude Palm Oil (CPO) conversion processes into fuels such as biogasoline and bioavtur can be developed through the hydrocracking process. This study aims to synthesize SiO2-ZrS catalysts with EDTA varied as templating and chelating agent and to characterize them on crystallinity, acidity level and functional groups. The catalyst that has been made is then applied to the hydrocracking…
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- xvii, 59 hlm.; ilus.; 21 cm
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- T900172023
HYDROCRACKING CPO MENJADI BIOGASOLINE DAN BIOAVTUR DENGAN KATALIS ZrP-SiO2
The process of making zirconium phosphide catalysts was carried out using various methods, such as the ZrP-SiO2 method, ZrP-SiO2 with KHFthalat template, ZrP-SiO2 with KHFthalat chelate. The purpose of this study was to apply the ZrP-SiO2 catalyst using templates and KHFthalate chelate in the hydrocracking process in the conversion of CPO to biogasoline and bioavtur, and to characterize the cat…
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- xv, 66 hlm.; ilus.; 21 cm
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- T1059582023
PREPARASI SiO2-Zr SERTA APLIKASINYA PADA PRODUKSI BIOGASOLINE DAN BIOAVTUR ME…
Porous SiO2-Zr catalysts were prepared using as the chelate method and the EDTA template. The aim of the research was to prepare CPO into biogasoline and bioavtur through a hydrocracking process by applying a Zr-SiO2 catalyst using a template and EDTA chelate, as well as carrying out catalytic activity tests using instruments such as XRD, FTIR, and acidity tests. The results of the GCMS charact…
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- xix, 72 hlm.; ilus.; 21 cm
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- T900282023
PENGOLAHAN LIMBAH PALM OIL MILL EFFLUENT (POME) DENGAN PENGARUH VARIASI KUAT …
Research has been carried out on the processing of Palm Oil Mill Effluent waste with variations in current and time using electrocoagulation and activated charcoal filtration methods. POME is a liquid waste generated during the production of palm oil. This study uses electrocoagulation and activated charcoal filtration methods which aim to compare the effect of current and time on decreasing pH…
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- xvii, 66 hlm.; ilus.; 21 cm
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- T900932023
PENENTUAN AKTIVITAS ANTIFOTOAGING EKSTRAK BUAH TEMBESU (Fagraea fragrans Roxb)
Tembesu plant (Fagraea fragrans Roxb) is one of the plants that grows in South Sumatra. Tembesu’s fruit contains various secondary metabolites such as flavonoids, triterpenoids, alkaloids, and tannin trimmer that makes tembesu potential to be phytocosmetic. Therefore, this study aims to determine antiphotoaging activity of the n-hexane’s fraction, ethyl acetate’s fraction and methanol’s…
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- xv, 44 hlm.; ilus.; 21 cm
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- T862812023
PENERAPAN LOOPING SYSTEM DALAM MEMANFAATKAN CO2 SISA DARI KONVERSI CO2 MENJAD…
SUMMARY LOOPING SYSTEM APPLICATION IN UTILIZING RESIDUAL CO2 FROM CONVERSION CO2 TO METHANOL AND METHANOL PURIFICATION THROUGH CONTINUOUS DISTILATION Yollanda Nurcholifah: Supervised by Dr. Dedi Rohendi, M.T and Dra. Julinar, M.Si Department of Chemistry, Faculty of Mathematics and Natural Science, Sriwijaya University x + 54 pages, 3 tables, 11 images, 13 appendices CO2 conversion can produce …
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- xviii, 58 hlm.; ilus.; 21 cm
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- T894582023
PENGARUH PERSENTASE POLYTETRAFLUOROETHYLENE (PTFE) PADA LAPISAN KATALIS ELEKT…
Testing the effect of Polytetrafluoroethylene (PTFE) on the electrode catalyst layer on methanol production as a result of CO2 conversion by electrochemical reduction has been carried out. This study used PTFE as a hydrophobic substance with varying contents (10wt%, 15wt%, 20wt%, and 25wt%) in electrodes with Cu2O-ZnO/C (cathode) and Pt/C (anode) catalysts. The electrodes were 7.5 x 7.5 cm in s…
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- xvii, 85 hlm.; ilus.; 21 cm
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- T897202023
PENGARUH AKTIVATOR ASAM SULFAT DAN CAMPURAN PEREKAT KULIT PISANG KEPOK SERTA …
Biomass can be improved in quality by forming it into biobriquettes. Biobriquettes are an alternative source of materials derived from organic materials such as areca nut shells, which have the potential to be converted into biobriquettes due to their abundant availability and relatively high content of cellulose and hemicellulose. Areca nut peel biobriquettes in this study used sulfuric acid a…
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- xvii, 65 hlm.; ilus.; 21 cm
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- T878322023
SINTESIS KOMPOSIT ZnO-Fe3O4 DAN APLIKASINYA PADA FOTODEGRADASI ZAT WARNA METI…
The research of synthesis of the ZnO-Fe3O4 and its application to the degradation of methylene blue had been done. Composites were made with massa ratio of ZnO to Fe3O4 (1:1), (1:2) and (2:1). The composite results were then characterized using XRD, SEM-EDS and UV-Vis DRS instruments. The results of XRD characterization on the ZnO-Fe3O4 (1:1) composite showed the formation of a typical peak at …
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- xx, 34 hlm.; ilus.; 29 cm
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- T656982022
ELEKTROLISIS AIR MENGGUNAKAN MEMBRANE ELECTRODE ASSEMBLY (MEA) DENGAN KATALIS…
Test on the electrolysis of water using Membrane Electrode Assembly (MEA) with TiO2/C catalyst on current and loading catalyst varied has been done. Electrode is characterized by Cyclic Voltametry (CV) and Electrode Impedance Spectroscopy (EIS). The characterization of electrode using this CV method showed that the biggest value of Electrochemical Surface Area (ECSA) was shown by TiO2/C electro…
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- xvi, 44 hlm.; ilus.; 29 cm
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- T670302022
SINTESIS DAN KARAKTERISASI KOMPOSIT ZnO/Fe2O3 SERTA APLIKASINYA UNTUK FOTODEG…
The research on synthesis and characterization of composites ZnO-Fe2O3 for photodegradation of methylene blue has been done. The photodegradation process of methylene blue was carried out in several variables including the effect of contact time and the initial concentration of the dye as well as in the above conditions pHpzc. ZnO-Fe2O3 composites were made with a mole ratio of ZnO to Fe2O3 (1:…
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- xvi, 42 hlm.; ilus.; 29 cm
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- T620942022
SINTESIS OKSIDA GRAFENA TEREDUKSI DARI TANDAN KOSONG KELAPA SAWIT MENGGUNAKAN…
The research about synthesis reduced graphene oxide from oil palm empty fruit bunches using matoa leaf extract as reducing agent and its application for methylene blue adsorption has been done. To obtain an efficient adsorbent, synthesis of reduced graphene oxide from oil palm empty fruit bunches was carried out. Oil palm empty fruit bunches were chosen as a source of biomass because of their a…
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- xvii, 87 hlm.; ilus.; 29 cm
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- T749212022
SINTESIS OKSIDA GRAFENA TEREDUKSI DARI AMPAS TEBU (SACCHARUM OFFICINARUM L.) …
Bagasse is a biomass waste containing lignocellulosic materials such as cellulose, hemicellulose and lignin. With the presence of these compounds, bagasse has the potential to be used as a raw material in the synthesis of reduced graphene oxide (rGO). In this study, reduced graphene oxide was synthesized using the Hummer’s method using matoa leaf extract as a reducing agent. The synthesis res…
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- xvii, 50 hlm.; ilus.; 29 cm
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- T729552022
SINTESIS KOMPOSIT CoFe2O4/SiO2/NiO UNTUK DEGRADASI FOTOKATALITIK ZAT WARNA ME…
In this study, the synthesis of CoFe2O4/SiO2/NiO composites was carried out for the photocatalytic degradation of methylene blue dye. The synthesized materials were characterized using XRD, SEM-EDS, VSM, and UV-VIS DRS. Characterization results using the XRD tool shows the highest intensity was located at 2θ = 43.25° with a crystal size of 2.41 nm. Characterization results using the SEM-EDS t…
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- xviii, 47 hlm.; ilus.; 29 cm
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- T748432022
SINTESIS CuFe2O4/SiO2/NiO UNTUK DEGRADASI FOTOKATALITIK ZAT WARNA KONGO MERAH
Research has been carried out on the synthesis of CuFe2O4/SiO2/NiO composites and its application on photocatalytic degradation of congo red dye. CuFe2O4 was synthesized using coprecipitation method, CuFe2O4/SiO2 by sol-gel method, and CuFe2O4/SiO2/NiO by hydrothermal method. The resulting CuFe2O4, CuFe2O4/SiO2, and CuFe2O4/SiO2/NiO were characterized using XRD, SEM-EDS, VSM, and UV-Vis DRS. Th…
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- xxi, 80 hlm.; ilus.; 29 cm
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- T748882022
UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAUN SAMBILOTO (ANDROGRAPHIS PANICUL…
The antibacterial activity of the ethanol extract of bitter leaf (Andrographis paniculata ness.) and its fractions has been tested against bacteria that cause pneumonia. This research begins with the extraction process and produces a thick extract of 42.723 grams with a yield of 14.241%. Then fractionation was done using KCV and obtained 4 fractions. The antibacterial test was carried out using…
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- xxi, 47 hlm.; ilus.; 29 cm
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- T746402022
UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAN FRAKSI ETIL ASETAT DAUN PEPAYA (…
Antibacterial activity of ethanol extract and ethyl acetate fractions of papaya leaves for preparations of gel based hand sanitizer had been carried out on this research. Papaya leaves was extracted by maceration method using ethanol. Ethanol extract was fractionated using ethyl acetate. Total alkaloid and flavonoid contents of the extract and fraction were examined using UV-Visible Spectrophot…
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- xix, 50 hlm.; ilus.; 29 cm
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- T748562022
SINTESIS Fe3O4-TiO2 DAN APLIKASINYA PADA FOTODEGRADASI ZAT WARNA METILEN BIRU
Research entitled Fe3O4-TiO2 and its application to the photodegradation of methylene blue dye had been investigated. Fe3O4-TiO2 composites had been prepared with mass ratios (1:1), (1:2) and (2:1) and were characterized using XRD, SEM-EDS and UV-Vis DRS instruments. The photodegradation process of methylene blue had been carried out in several variables including the effect of the initial conc…
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- xix, 29 hlm.; ilus.; 29 cm
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- T662372022
SINTESIS KOMPOSIT KITOSAN-AL2O3 DENGAN METODE SOL-GEL DAN APLIKASINYA PADA FO…
The research on synthesis of composites Kitosan-Al2O3 by the sol-gel methodfor photodegradation of methylene blue has been carriedout.Chitosan-Al2O3 varied by mass ratios (1:1), (1:2) and (1:3). The product were characterized using XRD, UV-DRS and SEM-EDS. The Chitosan-Al2O3 (1:1) composite was chosen as a material for degrading methylene blueby various condition, i.e., effect of pH, contact ti…
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- xviii, 35 hlm.; ilus.; 29 cm
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- T672142022
SINTESIS KOMPOSIT SnO2/ZnO DAN APLIKASINYA PADA FOTODEGRADASI ZAT WARNA REMAZ…
Synthesis of SnO2/ZnO nanocomposites was counducted by doping semiconductor SnO2 by Zn metal. Composites, were made with mass ratio of SnO2 to ZnO (1:0.5), (1:1) and (1:1.5), were characterized used XRD, SEM-EDS and UV-Vis DRS instruments. The XRD characterization results of the SnO2/ZnO composite showed the formation of a typical peak at 2θ around 26o. Energy band gap value of the SnO2/ZnO co…
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- xvi, 39 hlm.; ilus.; 29 cm
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- T658862022
PENGARUH KONDISI TEMPERATUR DAN BERAT KATALIS PADA PEMBUATAN BIO-OIL DARI LIM…
Telah dilakukan penelitian tentang pengaruh temperatur dan berat katalis pada proses pembuatan bio-oil dari limbah TKKS menggunakan katalis Ni/ZAA untuk menyelidiki pengaruhnya terhadap hasil yield bio-oil, coke, dan berat jenis bio-oil. Sampel TKKS dipreparasi dan dikarakterisasi kadungan selulosanya yang menghasilkan nilai sebesar 80% dan lignin sebesar 15%. Katalis Ni/ZAA dibuat dengan prose…
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- xvi, 30 hlm.; ilus.; 29 cm
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- T761442022
SINTESIS KOMPOSIT NIFE2O4/SIO2/NIO UNTUK DEGRADASI FOTOKATALITIK ZAT WARNA CO…
Research on the synthesis of NiFe2O4/SiO2/NiO and its application on photocatalytic degradation of congo red dye has been done. The NiFe2O4 compound was synthesized through coprecipitation method, NiFe2O4/SiO2 composite was synthesized through the sol gel method, and NiFe2O4/SiO2/NiO composite was synthesized by hydrothermal method. The results of the synthesis of NiFe2O4/SiO2/NiO composite wer…
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- xix, 82 hlm.; ilus.; 29 cm
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- T749092022
SINTESIS KOMPOSIT CaO/Fe3O4 DARI CANGKANG KERANG DARAH (ANADARA GRANOSA) DAN …
The synthesis of CaO/Fe3O4 composites has been carried out using the coprecipitation method with a weight ratio of 1:1. CaO used from blood clam shells were calcined at 1000 °C for 6 hours. Analysis of CaO/ Fe3O4 composite results using BET, XRD, FTIR and VSM, then applied to the adsorption of congo red dye with variables of contact time, concentration of congo red dye and temperature. The res…
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- xvii, 41 hlm.; ilus.; 29 cm
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- T790322022
SINTESIS NANOPARTIKEL PERAK (AgNPs) MENGGUNAKAN EKSTRAK DAUN SERIBU KUMAN (Rh…
Phytochemical screening and synthesis of silver nanoparticles (AgNPs) have been carried out using leaf extract of Seribu Kuman (Rhinacanthus nasutus). Phytochemical screening of the leaf extract of Seribu Kuman showed the presence of secondary metabolites of alkaloids, flavonoids, triterpenoids, steroids and saponins. Silver nanoparticles were synthesized by varying the extract volumes and temp…
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- xviii, 54 hlm.; ilus.; 29 cm
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- T791582022
SINTESIS CoFe2O4/SiO2/Ag UNTUK ADSORPSI ZAT WARNA METILEN BIRU DAN UJI ANTIBA…
Research has been carried out on the synthesis of CoFe2O4/SiO2/Ag for adsorption of methylene blue dye and antibacterial test. The results of the synthesis were characterized using XRD, SEM-EDS and VSM. The results of XRD characterization showed the highest intensity was located at 2θ = 35.82o with a crystal size of 7.34 nm. The results of SEM-EDS characterization showed heterogeneous morpholo…
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- xviii, 78 hlm.; ilus.; 29 cm
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- T826602022
PENENTUAN KADAR FENOLIK DAN FLAVONOID TOTAL SERTA UJI AKTIVITAS ANTIOKSIDAN E…
Pelangas (Aporosa octandra) is a plant belongs to Phyllanthaceae family which reported to have various traditional’s medicinal properties that have not been widely studied for their chemical content. The aims research are to know phenolic, flavonoid content and antioxidant activity of ethyl acetate extract from pelangas bark extract. The research was started with a phytochemical screening of …
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- xviii, 42 hlm.; ilus.; 29 cm
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- T791522022
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