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HIDROLISIS SELULOSA DENGAN KATALIS BIOCHAR TERSULFONASI PADA VARIASI SUHU DAN…
ABSTRACT : Cellulose hydrolysis is the process of breaking down β-1,4 glycosidic bonds into glucose and its derivatives. The cellulose hydrolysis reaction can be accelerated by sulfonated biochar catalysts from oil palm empty fruit bunches (OPEFB) and coconut shells (CS). This study was conducted to determine the effect of temperature and catalytic time variations of sulfonated biochar hydroth…
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- xvii, 53 hlm.; ilus.; 29 cm
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- T1893182025
SINTESIS CaO DARI CANGKANG KERANG HIJAU DAN MODIFIKASI CaO MENGGUNAKAN SODIUM…
Penggunaan kerang hijau yang sangat banyak mengakibatkan limbah cangkang kerang hijau meningkat pesat. Cangkang kerang hijau digunakan sebagai bahan utama sintesis CaO dan modifikasi CaO/SDS. Modifikasi CaO dilakukan perbandingan berat CaO terhadap SDS yaitu (2:1) dan (1:1). Sintesis CaO menggunakan metode ekstraksi dan presipitasi. Adanya penambahan SDS berfungsi sebagai pencegah aglomerasi. H…
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- xv, 32 hlm.; ilus.; 29 cm
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- T1577332024
PENGARUH WAKTU ULTRASONIK DAN TEMPERATUR PEMANASAN TERHADAP KUALITAS OKSIDA G…
Grafena merupakan salah satu bentuk alotrop karbon yang memiliki sifat termal, listrik, katalitik, dan optik yang tinggi sehingga dapat digunakan dalam berbagai bidang. Grafena memiliki turunan berupa oksida grafena (GO) dan oksida grafena tereduksi (rGO). Oksida grafena disintensis menggunakan metode Hummer, serta oksida grafena tereduksi disintensis menggunakan metode reduksi multifase. Pada …
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- xii, 122 hlm.; ilus.; 29 cm
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- T1576902024
SPESIASI ION LOGAM KROM (III) DAN KROM (VI) PADA SEDIMEN DI SUNGAI OGAN MENGG…
Telah dilakukan penelitian spesiasi ion logam krom (III) dan krom (VI) menggunakan metode potensiometri sel konsentrasi. Tujuan penelitian untuk memvalidasi metode dan menentukan distribusi spesies ion logam krom (III) dan krom (VI) dalam sedimen. Metode potensiometri sel konsentrasi memiliki rangkaian alat berupa anoda dan katoda yang terhubung dengan jembatan garam KCl dan elektroda logam Cr.…
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- xv, 42 hlm.; ilus.; 29 cm
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- T1576312024
KONVERSI MINYAK JELANTAH MENJADI BIODIESEL MELALUI REAKSI ESTERIFIKASI DAN TR…
Konversi minyak nabati dapat dilakukan dengan metode elektrolisis sebagai metode alternatif. Tujuan konversi minyak bekas dengan metode elektrolisis untuk memproduksi biodiesel dengan memperhatikan kuat arus dan waktu reaksi. Sampel minyak bekas yang digunakan memiliki nilai asam lemak bebas (ALB) sebesar 0,379%. Reaksi esterifikasi dilakukan sebagai pretreatment sebelum melakukan reaksi transe…
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- xiv, 165 hlm.; ilus.; 29 cm
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- T1576952024
SPESIASI ION LOGAM CR(III) DAN CR(VI) PADA TANAMAN ECENG GONDOK (EICHHORNIA C…
Water hyacinth is a bioindicator plant that has high tolerance to metal pollutans concentration of Cr(III) and Cr(VI) metal ions species in Ogan river. Measurement of Cr(III) and Cr(VI) metal ions species has done using the concentration cell potentiometric method. This study aims to validated the method (linearity, precision, accuracy, LoD & LoQ). Applying the concentration cell potentiometric…
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- xiv, 165 hlm.; ilus.; 29 cm
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- T1576572024
PRODUKSI ENZIM PROTEASE DARI Bacillus licheniformis TS-8 PADA MEDIA TEPUNG BU…
Protease is an enzyme capable of breaking peptide bonds in proteins into peptides and amino acids. Thermophilic bacteria from B. licheniformis are known as one of the microorganisms that produce protease capable of degrading keratin with high activity and under extreme conditions. In this study, protease enzyme production and purification were carried out from Bacillus licheniformis TS-8 isolat…
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- xviii, 78 hlm.; ilus.; tab.; 29 cm
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- T1892982025
SINTESIS KOMPOSIT Fe3O4-SDS SEBAGAI ADSORBEN UNTUK ADSORPSI ZAT WARNA CONGO RED
Congo red dye is widely used in industry, one of them is textile industry. Congo red dye waste if it enters the environment without proper processing will cause environmental pollution. Fe3O4 and Fe3O4-SDS (1:1) composite were used for the adsorption of congo red dye by synthesizing using the coprecipitation method and characterized using XRD, FTIR, VSM and BET. The XRD characterization results…
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- xvii, 76 hlm.; ilus.; 29 cm
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- T1522512024
PENGARUH PERBANDINGAN BERAT SDS TERHADAP KINERJA KOMPOSIT Fe3O4-SDS UNTUK ADS…
The dye that is widely used in the textile industry is congo red dye which is carcinogenic and toxic to many organisms so that processing is needed. Fe3O4-SDS (2:1) and (2:3) composites were used as adsorbents in the adsorption of congo red dye by synthesis using the coprecipitation method and then characterized by XRD, BET, VSM and FTIR. The XRD characterization results of Fe3O4-SDS (2:1) and …
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- x, 73 hlm.; ilus.; 29 cm
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- T1522502024
AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL SABUT KELAPA (Cocos Nucifera Linn) TERHA…
Indonesia has abundant natural resources, especially in agriculture. One of its leading commodities comes from coconut plantations, Coconut is a versatile plant whose entire part can be utilized, including coconut fiber. Coconut fiber contains antibacterial compounds such as tannins, flavonoids, and polyphenols. This study aims to assess the antibacterial activity of ethanol extract of coconut …
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- xix, 72 hlm.; ilus.; tab, 29 cm
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- T1805182025
SINTESIS GRAFIT DARI LIGNIN HASIL ISOLASI LIMBAH TANDAN KOSONG KELAPA SAWIT M…
Grafit banyak dimanfaatkan dalam berbagai aplikasi industri, namun Indonesia masih sering mengimpor grafit sehingga diperlukan sumber alternatif. Lignin sebagai salah satu komponen dalam limbah tandan kosong kelapa sawit dan biasanya diabaikan, memiliki potensi dijadikan bahan baku sintesis grafit karena kandungan karbon yang tinggi. Proses isolasi lignin pada penelitian ini menggunakan metode …
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- xi, 78 hlm.; ilus.; 29 cm
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- T1521492024
SINTESIS NANOPARTIKEL PERAK (NPAg) MENGGUNAKAN EKSTRAK DAUN TUMBUHAN Antidesm…
Antidesma ghaesembilla or what is known locally as Sendulang has potential as a bioreductor in the synthesis of silver nanoparticles because it contains secondary metabolite compounds, one of which is flavonoids. A. ghaesembilla leaves have never been reported or studied for use as a bioductor in the synthesis of silver nanoparticles. Therefore, this research aims to synthesize silver nanoparti…
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- xv, 42 hlm.; ilus.; 29 cm
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- T1521612024
KARAKTERISASI RESERVOAR MENGGUNAKAN ATRIBUT SEISMIK PADA LAPANGAN “X” FOR…
Telah dilakukan penelitian mengenai uji aktivitas antihiperlipidemia ekstrak etanol daun kecipir (Psophocarpus tetragonolobus (L.) DC) pada tikus jantan wistar yang diinduksi diet tinggi lemak dan fruktosa. Tikus putih jantan galur Wistar dibagi menjadi enam kelompok yaitu normal, kontrol positif (simvastatin 0,9 mg/kgBB), kontrol negative (NaCMC 0,5%), dan tiga kelompok uji dengan dosis 100 mg…
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- xvii, 82 hlm.; ilus.; 29 cm
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- T1520752024
APLIKASI METODE POTENSIOMETRI SEL KONSENTRASI UNTUK ANALISIS LOGAM TEMBAGA (C…
Validation of the potentiometric cell concentration method and analysis of copper metal in Sekanak river water has been carried out. This research aims to validate the concentration cell potentiometric method in determining copper metal (Cu) in water and determining the distribution of copper metal (Cu) in Sekanak river water. Validation parameters in this study include calibration curve linear…
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- xvii, 82 hlm.; ilus.; 29 cm
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- T1589302024
PENENTUAN KADAR TOTAL FENOLIK, KADAR TOTAL FLAVONOID, AKTIVITAS ANTIOKSIDAN D…
Barringtonia acutangula or indian oak is a type of tree that are found in many swamps and river banks in Sumatera Selatan region. Determination of total phenolic content, total flavonoid content, antioxidant activity and toxicity of indian oak (Barringtonia acutangula) leaves extract was carried out. Extraction process was carried out by using increasing polarity maceration with n-hexane, ethyl…
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- xiii, 94 hlm.; ilus.; 29 cm
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- T1589292024
MODIFIKASI ALUMINA SILIKA DENGAN TEMPLATE KHFTALAT SEBAGAI PENGEMBAN LOGAM Ni…
The research was conducted on the modification of alumina silica using a KHPthalate template as a carrier of Ni-Mo metal for hydrocracking catalysts for crude palm oil (CPO) into biogasoline and bioavtur. The concentration variations used were 5% and 25% with the addition based on the ratio of alumina nitrate in the catalyst synthesis. The hydrocracking process was carried out at 350°C for 2 h…
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- xviii, 102 hlm.; ilus.; tab, 29 cm
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- T1886622025
INKORPORASI PATI KULIT PISANG KEPOK DALAM PEMBUATAN EDIBLE FILM TEPUNG SAGU U…
Edible film is a thin layer used as packaging that can be consumed together with food products. This study aims to create an edible film made from sago flour incorporated with kepok banana peel starch to increase the viability of Lactobacillus plantarum bacteria. The resulting edible film was analyzed for its physical and mechanical properties, then analyzed for resistant starch and bacterial v…
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- xviii, 97 hlm.; ilus.; tab, 29 cm
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- T1886132025
SINTESIS KOMPOSIT KITOSAN/GRAPHENE OXIDE-Fe2O3 DENGAN METODE KOPRESIPITASI UN…
The research about synthesis of chitosan/graphene oxide-Fe2O3 composite using the coprecipitation method for adsorption of methylene blue dye. This research was conducted to determine the ability of the chitosan/GO-Fe2O3 composite in adsorbing methylene blue dye. This composite were characterized using XRD, SEM-EDS, BET and applied in adsorbing methylene blue. The methylene blue adsorption proc…
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- xvii, 128 hlm.; ilus.; 29 cm
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- T1520382024
PENGARUH PERSENTASE BERAT KATALIS NI/C DAN TEMPERATUR PADA HYDROCRACKING PROD…
This study aims to determine the best operating conditions based on the effect of Ni/C catalyst weight percentage and temperature on hydrocracking of lignite coal pyrolysis products. The hydrocracking process was carried out using variations in catalyst weight percentage of 5, 10, 15, dan 20% also using temperature variations of 400, 450, 500, 550, and 600°C. Catalyst characterization was cond…
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- xiii, 49 hlm.; ilus.; 29 cm
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- T1520162024
PENGARUH TEMPERATUR PIROLISIS BATUBARA LIGNIT TERHADAP BERAT JENIS DAN KARAKT…
In this research, lignite coal is used as raw material for making coal oil. The method used is the pyrolysis method using temperature variations of 450-600°C. The coal oil resulting from pyrolysis was analyzed using GC-MS, %yield, specific gravity, and heating value. The optimal temperature obtained in the lignite coal pyrolysis process is 500°C. The results of GC-MS analysis showed that the …
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- xv, 130 hlm.; ilus.; 29 cm
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- T1519952024
ANALISA SEBARAN LOGAM BERAT BESI (Fe) SERTA STATUS MUTU PERAIRAN PADA SUNGAI …
The research on the distribution of heavy metal iron (Fe) in Gasing River water has been conducted. This research aims to determine the distribution of heavy metal iron (Fe) pollution in Gasing River and the quality status of Gasing River water. This research began with sampling at seven points, including the upstream of Gasing River, Kenten Village Bridge, Gasing Tengah Bridge, Middle of Gasin…
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- xvii, 128 hlm.; ilus.; 29 cm
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- T1520612024
PENGARUH TEMPERATUR PIROLISIS TERHADAP KUALITAS KARBON AKTIF DARI BATUBARA LI…
This study aims to determine the effect of temperature on the quality of activated carbon from lignite coal through the pyrolysis process. Activated carbon is made at a temperature increase rate of 0.5 dergress celcius per second . This test was carried out using temperature variations of 450, 500, 550, and 600 dergress celcius. Activated carbon was tested for quality by measuring water content…
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- xiv, 76 hlm.; ilus.; 29 cm
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- T1520422024
SINTESIS KOMPOSIT MnFe2O4/KARBON AKTIF@ZnO UNTUK ADSORPSI DAN DEGRADASI ZAT W…
Research on the synthesis of MnFe2O4/Activated Carbon@ZnO for adsorption and degradation of Congo red dye. Coal-based activated carbon is chemically activated. Synthesis MnFe2O4/Active Carbon and MnFe2O4/Active Carbon@ZnO were synthesized using the coprecipitation method. The composite is a powder that is faded brown in color and is magnetic. The results of the synthesis of MnFe2O4/Activated Ca…
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- xiv, 100 hlm.; ilus.; 29 cm
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- T1520312024
SINTESIS KOMPOSIT NiFe2O4/KARBON AKTIF@ZnO UNTUK ADSORPSI DAN DEGRADASI ZAT W…
This research aims to synthesize NiFe2O4/activated carbon@ZnO composite used in the adsorption and degradation process of Congo red dye. The synthesized product was characterized using XRD, VSM and UV-Vis DRS instruments against Congo red dye in various pH, dye concentration, and contact time. The synthesis of the NiFe2O4/activated carbon@ZnO composite was carried out using precipitation method…
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- xiv, 105 hlm.; ilus.; 29 cm
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- T1520022024
SINTESIS KOMPOSIT Fe3O4/KARBON AKTIF@NiO UNTUK ADSORPSI DAN DEGRADASI ZAT WAR…
This research aims to synthesize Fe3O4/activated carbon@NiO composite used in the adsorption and degradation process of Congo red dye. Nanomagnetic Fe3O4 utilized to reduce the band gap value of NiO as well to impart magnetic properties. Activated carbon from bamboo is utilized as an adsorbent in the adsorption process and NiO as a photocatalyst in the degradation process. The Fe3O4/activated c…
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- xi, 78 hlm.; ilus.; 29 cm
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- T1519982024
PENERAPAN SONIKASI PADA ADSORPSI RHODAMIN B MENGGUNAKAN KARBON AKTIF CANGKANG…
This research uses palm oil shells as raw material for making active carbon. Activated carbon was activated using 10% H3PO4 and modified using Co(OH)2. The obtained pHPZC value is at pH 7, so the adsorption in this study was conducted at pH 8. In this research, adsorption was determined from adsorption kinetics and adsorption isotherms. Based on the results of XRD, FTIR electron microscope and …
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- xv, 130 hlm.; ilus.; 29 cm
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- T1519252024
SINTESIS KOMPOSIT FE3O4/KARBON AKTIF DARI BAMBU@ZNO UNTUK ADSORPSI DAN DEGRAD…
The rapid development of the textile industry has resulted in an increase in liquid dye waste produced. Congo red dye is widely used in textile production. Congo red has toxic properties so it will cause various diseases if it enters the human body in large quantities. Therefore, it is necessary to process dye liquid waste. In this research, the synthesis of Fe3O4/Activated Carbon@ZnO composite…
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- xvii, 128 hlm.; ilus.; 29 cm
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- T1519312024
UJI KINERJA MEMBRANE ELECTRODE ASSEMBLY (MEA) MENGGUNAKAN KATALIS Pt-BLACK DA…
Performance testing of the membrane electrode assembly (MEA) using Pt-Black and Pt/C catalysts for direct methanol fuel cell (DMFC) on electrolyte membranes with varying methanol concentrations has been carried out. MEA is designed by combining Pt-Black electrodes on the anode side and Pt/C on the cathode side using Nafion 117 (N117) and Nafion 212 (N212) membranes. MEA was characterized using …
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- xiv, 76 hlm.; ilus.; 29 cm
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- T1519292024
SINTESIS KOMPOSIT (BENTONIT-TIO2)-GO UNTUK PENYERAPAN ZAT WARNA METILEN BIRU
This research generates the synthesis of (bentonite-TiO2)-GO composites for the distribution of methylene blue dye. A dye that is often used for textile coloring purposes with various chemical properties, one of which is methylene blue. The dyes that are thrown away will end up as waste. This has the potential to harm human health and threaten aquatic ecosystems. The adsorption method is one th…
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- xiv, 100 hlm.; ilus.; 29 cm
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- T1519162024
ANALISIS PENCEMARAN LOGAM BERAT TEMBAGA DALAM SEDIMEN DI SUNGAI GASING BERDAS…
Heavy metal copper (Cu) in the sediment of Gasing River, Banyuasin, South Sumatra has been studied. The research aims to determine the distribution of copper (Cu) metal and determine the level of copper (Cu) metal pollution in sediments based on the geoaccumulation index. The research began with sediment sampling at six locations in the upstream to downstream of the Gasing River. Sediment sampl…
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- ix, 74 hlm.; ilus.; 29 cm
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- T1517162024
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