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PENGARUH KONSENTRASI AKTIVATOR HCl PADA PEMBUATAN KARBON AKTIF TEMPURUNG KELA…
Oil palm shell has high cellulose content so that it can be utilized as activated carbon for heavy metal absorption. Activated carbon from oil palm shells was prepared by varying HCl concentration, adsorbent weight and contact time. Activated carbon was characterized using FTIR and lead metal (Pb) was analyzed using SSA. The results of the characterization of activated carbon of oil palm shell …
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- xxii, 61 hlm.; ilus.; 21 cm
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- T1184582023
PEMBUATAN ADSORBEN TEMPURUNG KELAPA SAWIT SEBAGAI PENYERAP TIMBAL (Pb) DENGAN…
The palm oil industry in Indonesia produces a lot of solid waste in the form of palm shells. Palm shell contains cellulose that can be utilised as an adsorbent. Adsorbents can function as metal absorbers such as Pb metal. Pb metal that exceeds the maximum limit in waters can endanger the surrounding environment. This study was conducted to make adsorbents from oil palm shells that were refined …
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- xvii, 51 hlm.; ilus.; 21 cm
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- T1183732023
KARAKTERISASI BIOBRIKET CANGKANG BIJI KARET DAN SABUT KELAPA SAWIT DENGAN PER…
Telah dilakukan pembuatan biobriket dari cangkang biji karet dan sabut kelapa sawit dengan penambahan perekat tapioka dan kulit pisang kepok yang dikarakterisasi berdasarkan acuan SNI 01-6235-2000. Cangkang biji karet dan sabut kelapa sawit dikarbonisasi menggunakan furnace pada waktu 30, 60 dan 90 menit dengan temperatur 400, 450 dan 500oC. Arang cangkang biji karet dan sabut kelapa sawit dige…
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- xvii, 49 hlm.; Ilus.; 21 cm
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- T1251082023
PENURUNAN KADAR ASAM LEMAK BEBAS PADA CPO DENGAN ADSORBEN CANGKANG KELAPA SAW…
Crude Palm Oil (CPO) merupakan minyak nabati yang dimanfaatkan dalam kehidupan sehari-hari. Berdasarkan SNI No. 01-2901-2006 terdapat beberapa parameter yang digunakan untuk menentukan kualitas CPO sebelum diperjualbelikan di pasaran. Salah satunya adalah kadar asam lemak bebas (ALB). Penelitian ini bertujuan untuk menurunkan kadar ALB sampel CPO dengan adsorben cangkang kelapa sawit dan uji ak…
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- xxii, 68 hlm.; Ilus.; 21 cm
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- T1265612023
UJI AKTIVITAS ENZIM AZOREDUKTASE EKSTRASELULER DARI BAKTERI AEROMONAS JANDAEI
Extracellular azoreductase enzyme activity has been tested from Aeromonas jandaei bacteria. Extract of azoreductase enzyme from A. jandaei bacteria was obtained by centrifugation of liquid culture on NB media which was incubated for 2x24 hours at 37C in an incubator shaker. The results of enzyme fractionation with the highest specific activity were used to determine the optimum conditions fo…
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- xvii, 58 hlm.; Ilus.; 21 cm
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- T675582022
OPTIMASI ADSORPSI ZAT WARNA METILEN BIRU OLEH KOMPOSIT CaO/PEG/Fe3O4 MENGGUNA…
CaO/PEG/Fe3O4 composite is synthesized with a weight ratio of 1:0.5:1. CaO in the CaO/PEG/Fe3O4 composite is synthesized from cockle shell using thermal decomposition method through a calcination process at a temperature of 1000℃ for 4 hours. Fe3O4 is synthesized using the co-precipitation method. CaO/PEG/Fe3O4 composite is used for the adsorption process of methylene blue dye. This research …
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- xvii, 63 hlm.; ilus.; 21 cm
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- T1253392023
MODIFIKASI BIOCHAR DENGAN SENYAWA MANGAN OKSIDA DAN APLIKASINYA SEBAGAI ADSOR…
Biochar is a material that contains a high carbon content, good structural stability, large surface area, and high ion exchange capacity so that it can be utilized in the adsorption process. Biochar is obtained from burning at high temperatures from various organic wastes in limited oxygen conditions which causes an increase in pore volume. However, if the temperature is too high, the pore stru…
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- xvii, 73 hlm.; ilus.; 21 cm
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- T1256182023
PEMBUATAN BIOBRIKET DARI CAMPURAN LIMBAH KULIT SINGKONG DAN TANDAN KOSONG KEL…
Biobriket merupakan energi alternatif terbarukan yang dapat dijadikan solusi untuk mengatasi ketersediaan energi fosil yang semakin menipis. Pada penelitian ini telah dibuat biobriket dari campuran kulit singkong dan tandan kosong kelapa sawit dengan menggunakan aktivator asam fosfat. Kulit singkong dan TKKS dikarbonisasi pada suhu 400°C selama 90 menit, arang yang telah dikarbonisasi dicampur…
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- x, 61 hlm.; ilus.; 21 cm
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- T1259812023
SINTESIS KOMPOSIT MnO2/SELULOSA DAN APLIKASINYA SEBAGAI ADSORBEN PADA ADSORPS…
Composite is known as a new material that is produced from a combination of two or more contituent materials so that they have better physical and chemical properties. The synthesis of the MnO2/Cellulose composite was carried out to determine the adsorption ability of the adsorbent on the malachite green dye through the influence of variations in pH, contact time and temperature and to study th…
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- xviii, 68 hlm.; Ilus.; 21 cm
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- T1261012023
UJI KINERJA DAN KETAHANAN MEMBRANE ELECTRODE ASSEMBLY (MEA) DENGAN KATALIS PD…
Pd-Ni/C catalyst with a mass ratio of Pd:Ni = 0:100, 25:75, 50:50, 75:25, and 100:0 was successfully synthesized by the impregnation method. Pd-Ni/C catalyst ink is sprayed onto the surface of the gas diffusion layer (GDL) to obtain Pd-Ni/C electrodes. Pd-Ni/C electrodes were characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) methods. CV characterization a…
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- xvi, 80 hlm.; ilus.; 21 cm
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- T1252802023
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
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