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PENENTUAN TEMPERATUR KALSINASI TERBAIK DALAM SINTESIS SILIKA ZIRKONIUM FOSFAT…
Diisopropil eter (DIPE) adalah lternative aditif oksigenat yang dapat meningkatkan kualitas bensin, meminimalkan emisi gas CO dan hidrokarbon selama pembakaran. Penelitian ini bertujuan untuk mensintesis katalis silika zirkonium fosfat dengan template EDTA untuk aplikasi dehidrasi isopropil alkohol menjadi diisopropil eter. Hasil XRD menunjukan bahwa pada variasi katalis silika zirkonium fosfat…
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- xvi, 48 hlm.; Ilus.; 21 cm
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- T1261992023
AKTIVITAS OKSIDA GRAFENA TERSULFONASI (S-GO) YANG DIPREPARASI DARI TEMPURUNG …
Tempurung kelapa merupakan sisa biomassa yang terdiri dari lignin, selulosa dan hemiselulosa, memiliki potensi sebagai bahan baku dalam sintesis oksida grafena tersulfonasi (S-GO). S-GO disintesis menggunakan metode Hummer dengan asam sulfat sebagai agen sulfonasi. Hasil sintesis meliputi grafit, oksida grafena, dan oksida grafena yang telah tersulfonasi. Karakterisasi FTIR digunakan untuk meng…
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- xx, 51 hlm.; Ilus.; 21 cm
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- T1262522023
FERMENTASI MOLASE TEBU MENGHASILKAN ETANOL MENGGUNAKAN Saccharomyces cerevisi…
Molase adalah substrat organik yang mengandung gula teridiri atas glukosa, sukrosa dan fruktosa dengan konsentrasi tinggi. Dengan demikian molase dapat difermentasi menghasilkan etanol oleh yeast Saccharomyces cerevisiae. Penggunaan yeast terimobilisasi dalam fermentasi dapat mempermudah proses pemisahan sel, penggunaan kembali sel, kepadatan sel yang lebih tinggi, aktivitas metabolisme yang le…
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- x, 50 hlm.; Ilus.; 21 cm
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- T938112023
PEMBUATAN KOMPOSIT BENTONIT-PDA-NiO UNTUK DEGRADASI FOTOKATALITIK ZAT WARNA M…
This research aims to produce a Bentonite-PDA-NiO composite which can be used as a photocatalyst to degrade Methylene Blue dye. The composite was made with a mass ratio of 1:1 and then characterized using XRD, SEM-EDX, and UV-Vis DRS. The photodegradation process of Methylene Blue was carried out by varying the initial dye concentration, time, and mass of the composite, as well as at certain pH…
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- xvi, 50 hlm.; Ilus.; 21 cm
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- T1254002023
UJI TOKSISITAS DAN ISOLASI SENYAWA STEROID DARI FRAKSI N-HEKSANA BATANG TUMBU…
Passiflora foetida is a vine plant belonging to Passiflora genus that reported to have biological activity as an antibacterial, anti-ulcer, antidiabetic, antioxidant and anti-inflammatory. Studies on steroid compounds and toxicity assays have never been reported from P. foetida stems. Therefore, this study was conducted to isolate steroid compounds from n-hexane fraction and toxicity assays fro…
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- xx, 69 hlm.; ilus.; 21 cm
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- T1194932023
ISOLASI SENYAWA TURUNAN POLIKETIDA DARI FRAKSI ETIL ASETAT BATANG TUMBUHAN TI…
Tithonia diversifolia is a plant from the Asteraceae family of the genus Tithonia, originating from North and Central America. T. diversifolia has been reported as a biofumigant, anti-TMV (Tobacco mosaic virus), insecticide, antidiabetic, and antioxidant both from extracts, fractions, and metabolites that were successfully isolated. The content of secondary metabolites from T. diversifolia leav…
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- xx, 56 hlm.; ilus.; 21 cm
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- T1206222023
APLIKASI KOMPOSIT SENG HIDROKSIDA – KARBON AKTIF DARI CANGKANG BUAH KARET (…
The textile industry produces a lot of dye waste in liquid form. One of the pollutants in dye waste is rhodamine B, included in carcinogenic dyes and dangerous when exposed to living things. Method that can be used to overcome this problem is the adsorption method using activated carbon. Preparation of activated carbon from rubber fruit shells (Hevea brasiliensis) which was activated using H3PO…
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- xvi, 49 hlm.; ilus.; 21 cm
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- T1146702023
FOTODEGRADASI ZAT WARNA METILEN BIRU MENGGUNAKAN BENTONIT-PDA-TIO2
The research on photodegradation of methylene blue dye using Bentonite-PDA-TiO2 has been done. Bentonite-PDA and TiO2 were synthesized with ratio comparison (1:1). The success of Bentonite-PDA-TiO2 synthesis were characterized using XRD, SEM-EDX, and UV-Vis DRS. The photodegradation proccess of methylene blue variables including the effect of concentration dye, contact time, and mass composite.…
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- xvi, 62 hlm.; ilus.; 21 cm
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- T1221432023
ISOLASI SENYAWA METABOLIT SEKUNDER DARI FRAKSI n-HEKSANA BATANG TUMBUHAN KIPA…
The kipahit plant (Tithonia diversifolia) belongs to the Asteraceae family originating from South and North America which has bioactivity as anti-inflammatory, anti- fumigant, anti-viral, anti-diabetic and antibacterial. The antibacterial activity of extracts, fractions and isolated compounds against pathogenic bacteria that cause skin diseases such as Staphylococcus epidermidis and Streptococc…
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- xvi, 72 hlm.; ilus.; 21 cm
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- T1217072023
PENGARUH TEMPERATUR DAN JENIS AKTIVATOR PADA PEMBUATAN KARBON AKTIF DARI TEMP…
Many palm oil processing factories will produce waste that has not been utilized optimally in the form of palm oil shells. Oil palm shell can be used as an adsorbent to overcome environmental problems. Lead metal is a type of metal that can pollute the environment, is toxic and includes the B3 heavy metal. Production of activated carbon from oil palm shells with variations in temperature and ty…
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- xv, 45 hlm.; ilus.; 21 cm
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- T1183662023
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
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