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SINTESIS DIISOPROPIL ETER DARI PROSES DEHIDRASI ISOPROPANOL DENGAN KATALIS SI…
Katalis SiO2/cerium terfosfatasi template KHFtalat telah berhasil disintesis dengan metode sol-gel rasio massa Ce:SiO2 1:4 dan rasio mol Ce:(NH4)2(HPO4) 1:1 dengan variasi waktu kalsinasi 1, 3 dan 5 jam. Katalis diaplikasikan pada proses dehidrasi isopropanol untuk mendapatkan diisopropil eter. Proses dehidrasi menggunakan metode hidrotermal bertujuan agar produk yang didapatkan memiliki tingka…
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- xviii, 69 hlm.; ilus.; 21 cm
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- T1256062023
SINTESIS KOMPOSIT KITOSAN-GRAPHENE OXIDE (GO) DENGAN METODE HIDROTERMAL DAN A…
In general, textile dyes contain azo compounds and benzene groups. If azo compounds in the environment tend to be excessive, the environment will be polluted so that it can cause various diseases. Azo compounds are carcinogenic and mutagenic, and very difficult to degredate. Synthetic dyes that are widely used in the textile industry are congo red which belongs to the class of azo dyes. One met…
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- xix, 58 hlm.; ilus.; 21 cm
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- T1259212023
SINTESIS DAN KARAKTERISASI OKSIDA GRAFENA TERSULFONASI DARI AMPAS TEBU DAN TE…
Ampas tebu dan tempurung kelapa merupakan bahan lignoselulosa yang mengandung selulosa, hemiselulosa dan lignin. Pada penelitian oksida grafena (GO) disintesis dengan metode hummer termodifikasi kemudian disulfonasi menjadi oksida grafena tersulfonasi (SGO). Berdasarkan hasil karakterisasi XRD untuk GO dari ampas tebu pada suhu 300°C selama 90 menit dengan puncak sebesar 23,98° dan d spacing …
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- xviii, 73 hlm.; Ilus.; 21 cm
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- T1265402023
PERBANDINGAN METODE SPEKTROFOTOMETRI VISIBLE DAN POTENSIOMETRI TERHADAP ANALI…
This research compares the methods of iron metal analysis Fe2+ ions using visible spectroscopy and concentration cell potentiometry. The visible spectroscopy method needs to be verified, and the potentiometry method needs to be validated based on ISO 17025:2017, with parameters of linearity, sensitivity, detection limit, quantification limit, accuracy, precision, and measurement uncertainty. Th…
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- xvii, 80 hlm.; Ilus.; 21 cm
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- T1057362023
PENENTUAN KADAR FENOLIK DAN FLAVONOID TOTAL, UJI ANTIOKSIDAN, DAN ANALISIS SE…
Fagraea fragrans is a plant commonly found in Sumatera island. Several studies reported that F. fragrans has various pharmacological activities indicating the presence of active compounds in this plant, such as phenolics dan flavonoids. Hence, This study aims to estimate the total phenolic and flavonoid content, determine the antioxidant activity, and identify the compounds with LC-MS. The rese…
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- xviii, 64 hlm.; Ilus.; 21 cm
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- T939722023
SKIRINING SENYAWA ANTIOKSIDAN DARI FRAKSI ETIL ASETAT DAUN TUMBUHAN SUNGKAI (…
Sungkai belongs to the Lamiaceae famili with the latin name Peronema canescens Jack. Sungkai leaves have traditionally been used as a medicine to increase the body’s immune system. Its efficacy as an immune system drug is related to the presence of antioxidant. The aims of this research to determine the antioxidant activity of the ethyl acetate fraction of sungkai leaves (P. canescens Jack.) …
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- xiv, 61 hlm.; Ilus.; 21 cm
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- T1060092023
SINTESIS KOMPOSIT NANOPARTIKEL CaO/PDA (Polydopamine) DARI CANGKANG TELUR AYA…
The high growth of the textile industry is not balanced with good wastewater treatment, so it needs to be treated with the adsorption method. CaO and the synthesized CaO/PDA nanoparticle composite were used as adsorbents in congo red dye adsorption with variations in contact time, concentration, and temperature and then were characterized using XRD, FTIR and BET. The XRD characterization result…
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- xvii, 88 hlm.; Ilus.; 21 cm
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- T1261192023
SINTESIS KOMPOSIT BENTONIT/OKSIDA GRAFENA UNTUK ADSORPSI DAN FOTOKATALISIS ZA…
Research has been carried out on the synthesis of Bentonite/GO composites and their application in adsorption and photocatalysis of Congo Red dyes. The synthesized material was characterized by XRD, FT-IR, BET and SEM. GO was successfully synthesized by the formation of a peak at 2θ = 10.5° and an increase in d-spacing from graphite to GO with a value of 4.15973 Å to 8.9835 Å. The bentonite…
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- xviii, 72 hlm.; Ilus.; 21 cm
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- T1260242023
GREEN SYNTHESIS NANOMAGNETIK NiFe2O4 MENGGUNAKAN EKSTRAK DAUN KELOR (MORINGA …
Textile industry dye waste requires treatment in order to become safe and harmless waste for the environment. Congo red is one of the commonly used synthetic dyes which is difficult to degrade naturally so that waste treatment is carried out using the photodegradation method with nanomagnetic photocatalyst materials. Nanomagnetic NiFe2O4 was synthesized by green synthesis method using Moringa l…
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- xvii, 71 hlm.; Ilus.; 21 cm
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- T931682023
PERBANDINGAN METODE KONDUKTOMETRI DAN SPEKTROFOTOMETRI UV-Vis TERHADAP ANALIS…
Human activities such as industrial, agricultural, and household activities around the Musi river can cause contamination of heavy metals into the Musi river body. Iron is a type of heavy metal that can pollute the environment. Therefore, it is necessary to test the iron content in Musi River water as an effort to prevent water pollution. This research aims to compare the conductometric and spe…
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- xix, 74 hlm.; Ilus.; 21 cm
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- T1057372023
SKRINING SENYAWA ANTIOKSIDAN DARI FRAKSI METANOL KULIT BATANG SEMPRAWANG (Dil…
Semprawang (D. ochreata) is plant belongs to Dilleniaceae family that has been used by Musi tribe as a cure for scabies. The information about biology activity from this plant is very limited. The aims research was to screen of antioxidant compound from steam bark of D. ochreata. The research was started with extraction by maceration method using a solvent of increasing polarity (n-hexane, ethy…
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- xix, 66 hlm.; Ilus.; 21 cm
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- T856562022
DEGRADASI ZAT WARNA REMAZOL YELLOW MENGGUNAKAN KOMPOSIT Fe3O4/KITOSAN-GLUTARA…
The textile industry in carrying out its production process produces a fairly high amount of waste in Indonesia. Liquid waste generated by the textile industry can be in the form of dyes, for example Remazol Yellow dye. One of the alternatives for processing textile waste is to use the photocatalytic principle. In this research, the synthesis of the Fe3O4/chitosan-glutaraldehyde/NiO composite w…
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- xvii, 68 hlm.; Ilus.; 21 cm
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- T949572023
FOTOKATALITIK DEGRADASI ZAT WARNA PROCION RED MENGGUNAKAN KOMPOSIT Fe3O4/KITO…
Procion red is a dye widely used in the textile industry. Procion red dye waste that is released into the environment can be toxic to living things. Therefore, it is necessary to treat dye waste using an effective photocatalytic method so that it can produce waste that is not harmful to the environment. In this research, photocatalytic degradation of procion red dyes using Fe3O4/chitosan-glutar…
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- xvii, 65 hlm.; Ilus.; 21 cm
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- T939772023
GREEN SYNTHESIS MnFe2O4 DENGAN PENAMBAHAN EKSTRAK DAUN KELOR (MORINGA OLEIFER…
The textile industry in Indonesia produces a lot of liquid waste containing dyes, one of which is Congo Red. Congo Red dye is toxic, mutagenic, and carcinogenic which can pollute the environment. This research was conducted to synthesize MnFe2O4 with the addition of Moringa leaf extract as a capping agent using the green synthesis method used for photocatalytic degradation of Congo Red dye. MnF…
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- xviii, 69 hlm.; Ilus.; 21 cm
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- T931662023
SINTESIS KOMPOSIT NIFE2O4/KITOSAN-GLUTARALDEHID/TIO2 UNTUK DEGRADASI FOTOKATA…
TiO2 is a semiconductor material as a catalyst to degrade pollutants. On the other hand, TiO2 is easily dissolved in many solvents. Therefore, it needs to be doped with NiFe2O4 and coated with chitosan-glutaraldehyde. The synthesized NiFe2O4/chitosan-glutaraldehyde/TiO2 composite was used to reduce the concentration of methylene blue solution. The synthesized composite was characterized by XRD,…
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- xvi, 71 hlm.; Ilus.; 21 cm
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- T938672023
OPTIMASI ADSORPSI METILEN BIRU MENGGUNAKAN METODE RSM (RESPONSE SURFACE METHO…
Perkembangan teknologi dan sektor industri diiringi dengan peningkatan penggunaan zat warna yang semakin banyak sehingga berpotensi mencemari lingkungan. Salah satu zat warna yang sering digunakan dalam industri adalah metilen biru. Zat warna metilen biru ini memiliki struktur benzena yang bersifat toksik, sulit untuk diuraikan, karsinogenik dan mutagenik. Penelitian dengan judul optimasi adsor…
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- xviii, 60 hlm.; Ilus.; 21 cm
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- T949662023
MODIFIKASI SILIKA DENGAN KHFTALAT SEBAGAI MATERIAL PENGEMBAN KATALIS ZrS DAN …
The preparation of zirconium sulfide catalysts has been carried out with various modifications of silica on the catalyst using potassium hydrogen phtalate as the supporting agent, namely ZrS-SiO2, ZrS-SiO2 template method potassium hydrogen phtalate and ZrS-SiO2 chelate method potassium hydrogen phtalate. The purpose of this study was to apply the catalyst during the hydrocracking process in th…
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- xvi, 67 hlm.; Ilus.; 21 cm
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- T940392023
PENGARUH VARIASI WAKTU AKTIVASI DAN KONSENTRASI ASAM SULFAT SERTA JENIS PEREK…
This research analyzed the effect of activation time and concentration of sulfuric acid and type of adhesive on the characteristics of coffee grounds biobriquettes, by determining the quality parameters of biobriquettes according to SNI 01-6235-2000. Coffee grounds charcoal was activated using sulfuric acid with variations in activation time and concentration of sulfuric acid. Variations in act…
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- xvi, 60 hlm.; Ilus.; 21 cm
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- T878312023
SINTESIS DAN KARAKTERISASI HIDROSIAPATIT DARI CANGKANG KERANG DARAH (Anadara …
Hydroxyapatite is an apatite mineral compound which has a crystalline phase of a stable polycrystalline calcium phosphate compound. This research was carried out to synthesize hydroxyapatite from blood clam shells composited with SiO2. The synthesis of hydroxyapatite was carried out by the Sol Gel method. The HAp:SiO2 composite was characterized using XRD to determine 2θ, crystal size and crys…
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- xvi, 46 hlm.; Ilus.; 21 cm
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- T886782023
PENENTUAN KADAR FENOLIK DAN FLAVONOID TOTAL SERTA METIL GALAT DARI FRAKSI ETI…
Ludwigia octovalvis belongs to Ludwigia genus from family of Onagraceae. Some bioactivities from extract of this plant had been reported such as antioxidant and antidiabetic. The antioxidant activity from the leaves and stem of L. octovalvis extract have been reported. Previous studies have been successfully isolated methyl gallate and quercetin from L. octovalvis fruit.Meanwhile, the antioxida…
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- xvii, 74 hlm.; ilus.; 21 cm
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- T857592023
PENGARUH VARIASI JUMLAH PLAT ELEKTRODA TERHADAP PEMECAHAN EMULSI SANTAN PADA …
VCO is an oil obtained from fresh old coconut flesh squeezed with or without the addition of water, without heating, or by heating less than 60°C. The main component of VCO is medium-chain fatty acids, especially lauric acid. Over time, there have been various technologies for making VCO, but pre-existing methods still have weaknesses, namely that the yield produced is still low and the qualit…
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- xxii, 54 hlm.; ilus.; 21 cm
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- T1259382023
PENGARUH WAKTU ELEKTROLISIS PADA PEMBUATAN VIRGIN COCONUT OIL (VCO) DAN ANALI…
Virgin coconut oil adalah minyak yang dihasilkan dari pati kelapa yang telah diproses secara higienis dan tanpa pemurnian kimia, sehingga kandungan yang penting dalam minyak tetap dipertahankan. VCO umumnya dibuat dengan menggunakan dua metode diantaranya metode kering dan metode basah. Salah satu pembuatan VCO dengan metode basah adalah elektrolisis. Metode elektrolisis dilakukan dengan mengal…
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- xvii, 63 hlm.; ilus.; 21 cm
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- T1262542023
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
VALIDASI METODE GC-MS UNTUK PENENTUAN KADAR NIKOTIN DALAM PLASMA DARAH IBU PE…
Ibu perokok pasif dapat terpapar nikotin dalam darah yang dihasilkan dari pembakaran rokok yang disebabkan oleh suami perokok. Paparan nikotin pada ibu perokok pasif dapat menyebabkan masalah kesehatan, seperti asma, serangan jantung, gangguan kehamilan hingga kematian. Dosis maksimum nikotin dalam tubuh manusia adalah 60 mg/mL. Penelitian ini bertujuan untuk memvalidasi metode dan penentuan ka…
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- xii, 34 hlm.; ilus.; 21 cm
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- T1261672023
SINTESIS CaO DARI CANGKANG TELUR PUYUH MELALUI METODE PRESIPITASI SEBAGAI ADS…
The presence of liquid waste dye derived from methylene blue can be removed or reduced by using the adsorption process. The source of CaO comes from quail egg shells synthesized using the acid-base preparation method. The addition of SDS to open pores and increase pore structure. The results obtained were characterized using XRD, BET, and FTIR. CaO and modified CaO compounds are used as adsorbe…
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- xix, 99 hlm.; ilus.; 21 cm
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- T1266042023
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
PERBANDINGAN METODE KONDUKTOMETRI DAN SPEKTROFOTOMETRI UV-VIS TERHADAP ANALIS…
Contamination of bored well water has a serious impact on the environment and human health. Zinc (II) metal is one of the heavy metals that can contaminate bored well water. Zinc (II) metal ions can be analyzed using conductometric and UV-Vis spectrophotometric methods. This study aims to compare the conductometric method and the UV-Vis spectrophotometric method to the analysis of zinc metal (I…
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- x, 70 hlm.; ilus.; 21 cm
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- T1059852023
SPESIASI ION LOGAM Pb2+ dan Pb4+ DI PERAIRAN DANAU TELUK GELAM OGAN KOMERING …
ABSTRACT : This research aims to determine the levels of lead (II) and lead (IV) metal ion species by potentiometric methods using concentration cells and study the distribution of lead (II) and lead (IV) metal ions in the waters of Teluk Gelam Lake. The results showed the linear regression equation for metal ion of lead (II) y = 4.9162x+0.4 while lead (IV) y = 6.1105x+0.88 with R2 values 0.999…
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- x, 39 hlm.; ilus.; 21 cm
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- T1066602023
PENGARUH ION Ca2+, Fe3+ DAN Mn2+ TERHADAP AKTIVITAS ENZIM SELULASE YANG DIHAS…
: Penelitian ini telah dilakukan penentuan pengaruh ion logam (CaCl2; FeCl3; dan MnSO4) dengan variasi konsentrasi 1mM dan 5 mM terhadap aktivitas enzim selulase yang dihasilkan E. cloacae dan K. quasipneumoniae serta menentukan kondisi pH dan suhu optimum enzim selulase tersebut. Penentuan pH, suhu dan pengaruh ion logam terhadap enzim selulase dengan metode Miller dilakukan pada fraksi 40 –…
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- ix, 65 hlm.; ilus.; 21 cm
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- T885222023
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