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All Journal Jurnal Kimia Riset Indonesian Journal of Chemistry Jurnal Abdi: Media Pengabdian Kepada Masyarakat

Abdulloh Abdulloh

Departemen Kimia Fakultas Sains Dan Teknologi Universitas Airlangga

Author-ID : 2956913

Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Languange, Linguistic, Communication & Media Social Sciences Other

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HIDROLISIS MINYAK JARAK PAGAR MENJADI ASAM LEMAH BEBAS MENGGUNAKAN KATALIS CaO Abdulloh Abdulloh; Alfa Akustia Widati; Faiz Tamamy
Jurnal Kimia Riset Vol. 1 No. 1 (2016): Juni
Publisher : Universitas Airlangga

AbstrakTelah dilakukan hidrolisis minyak jarak pagar (Jatropha curcas oil: JO) menggunakan katalis CaO. Reaksi ini dimaksudkan untuk meningkatkan nilai ekonomis minyak jarak pagar selain biodiesel. Katalis CaO dikalsinasi terlebih dahulu pada suhu 800ᵒC untuk menghindari terjadinya deaktivasi katalis oleh terbentuknya CaCO3. Pada penelitian ini dilakukan karakterisasi katalis CaO meliputi struktur kristal CaO, luas permukaan, jumlah situs basa dan kekuatan kebasaan serta aktivitas katalitiknya. Hasil penelitian menunjukkan, katalis CaO memiliki luas permukaan 26,451 m2/g, kekuatan situs basa (pKB) pada daerah 7,2 < pKBH CaO < 15,0. Hasil uji aktivitas katalis CaO pada reaksi hidrolisis CJO diperoleh konversi CJO menjadi asam lemak bebas (free fatty acid: FFA) sebesar 77,58% pada waktu 60 menit. Kata kunci: hidrolisis, minyak jarak pagar (JO), free fatty acid (FFA), CaO dan situs basa AbstractHydrolysis of Jatropha curcas oil has been carried out using CaO as a catalyst. This reaction is intended to increase the economic value besides biodiesel. CaO catalyst was calcined at a temperature of 800 oC to avoid catalyst deactivation by formation of CaCO3. In this research include the characterization of catalysts CaO crystal structure, surface area, the number of base sites and the strength of basicity and catalytic activity. The results of the analysis showed that CaO catalyst has a surface area of 26.451 m2/g, the number of base sites of 221.77 mmol/g and the strength of base sites (pKBH) in the range of 7.2 < pKBH CaO < 15.0. From catalytic activity test showed that that the use of the catalytic activity of CaO catalyst in the hydrolysis reaction CJO into free fatty acids (FFA) as much as 77.58% for 60 minutes. Keywords: hydrolysis, Jatropha curcas oil (JO), free fatty acid (FFA), CaO and base site

REPARASI DAN KARAKTERISASI ALFA-Fe2O3 /ZEOLIT Y UNTUK REAKSI PERENGKAHAN ASAM PALMITAT Abdulloh Abdulloh; Purkan Purkan; Nizar Hardiansyah
Jurnal Kimia Riset Vol. 2 No. 2 (2017): Desember
Publisher : Universitas Airlangga

Telah dilakukan preparasi dan karakterisasi a-Fe2O3/zeolite Y sebagai katalis uji reaksi perengkahan asam palmitat. Zeolit A disintesis dari NaOH, NaAlO2 dan TEOS dengan metode kristalisasi bertahap. Katalis alfa-Fe2O3/zeolite Y disiapkan melalui metode impregnasi menggunakan larutan Fe(NO3)3 1 M dan proses kalsinasi pada suhu 500 oC dengan dialiri gas N2 selama 5 jam. Katalis dikarakterisasi dengan XRD, FTIR dan surface area analyzer menggunakan metode BET. Uji aktivitas katalis dilakukan pada suhu 380 – 400 oC. Analisis GC-MS terhadap hasil reaksi perengkahan menunjukkan terbentuknya senyawa-senyawa hidrokarbon seperti alkana dan alkena yang memiliki rantai karbon lebih pendek dari asam palmitat atau biogasoline

DEKOLORISASI AIR LIMBAH PENGOLAHAN GURITA MENGGUNAKAN METODE AOT(ADVANCE OXIDATION TREATMENT) DENGAN REAGEN FENTON Ganden Supriyanto; Khoirun Nisak R; Abdulloh Abdulloh
Jurnal Kimia Riset Vol. 3 No. 1 (2018): Juni
Publisher : Universitas Airlangga

ABSTRACT This research aims to determine the effectiveness of Advance Oxidation Treatment (AOT) method with the use of Fenton reagent in decolorization of octopus canning wastewater’s red colour. The use of Fenton reagent (H2O2 and Fe2+) will produce hydroxyl radicals (∙OH) that will oxidize the red colour so the octopus canning wastewater to be colourless and safe to discharged into the environment. Determination of octopus canning wastewater's decolorization is done by determining the change of red color's intensity using Pt/Co scale. The main parameter in determining the decolorization of octopus canning wastewater using Advanced Oxidation Treatment (AOT) with Fenton reagent are time, concentration of Fe2+, concentration of H2O2, and pH. The maximum decolorization of octopus canning wastewater was reached at following condition rarely 55 minutes, with Fe2+ concentration of 42,86 ppm, H2O2 concentration of 85,71 ppm, and pH 4. With a capacity of red color’s decolorization is 49,08 %. Key words : Advance Oxidation Treatment (AOT), decolorization, Fenton reagent ABSTRAK Penelitian ini bertujuan untuk mengetahui efektifitas metode Advance Oxidation Treatment (AOT) dengan menggunaan reagen Fenton dalam mendekolorisasi warna merah yang terdapat dalam air limbah pengolahan gurita. Penggunaan reagen Fenton (H2O2 dan Fe2+) akan menghasilkan radikal hidroksil (∙OH) yang bisa menghilangkan warna merah yang terdapat di dalam limbah sehingga limbah menjadi tidak berwarna dan aman untuk dibuang ke lingkungan. Penentuan dekolorisasi air limbah pengolahan gurita dilakukan dengan menentukan perubahan intensitas warna merah menggunakan skala Pt/Co. Parameter utama yang digunakan dalam metode Advance Oxidation Treatment (AOT) adalah waktu, konsentrasi Fe2+, konsentrasi H2O2, dan pH. Hasil optimum dari dekolorisasi air limbah pengolahan gurita adalah pada waktu 55 menit, konsentrasi Fe2+ 42,86 ppm, konsentrasi H2O2 85,71 ppm, dan pH 4. Dengan kapasitas dekolorisasi warna merah sebesar 49,08 %. Kata kunci : Advance Oxidation Treatment (AOT), dekolorisasi, reagen Fenton

Sintesis Dan Karakterisasi H-Aluminosilikat Sebagai Katalis Sintesis Biogasoline Dari Asam Oleat Deasi Adhiani Farida; Abdulloh Abdulloh; Ahmadi Jaya Permana
Jurnal Kimia Riset Vol. 4 No. 2 (2019): Desember
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v4i2.16897

ABSTRACT Aluminosilicate can be used for cracking reaction. In this study, catalyst of H-aluminosilicate has been synthesized by hydrothermal method with ratio molar Si/Al is 20. The characterizations has been performed by XRD, FTIR and acidity test. Characterization by XRD showed that catalyst of H-aluminosilicate have structure amorphous, while FTIR showed Si-O-Al bond at 457 cm-1. The acidity test showed that catalyst of H-aluminosilicate have Brønsted acid site 0.0272 mmol/g and Lewis acid site 0.0005 mmol/g. Oleic acid was cracking at 340 oC for 3 and 5 hours. The product has been analyzed by GC-MS not showed compound forming biogasoline.Keywords: H-aluminosilicate, biogasoline, oleic acid ABSTRAK Aluminosilikat dapat digunakan sebagai katalis dalam reaksi prengkahan. Pada penelitian ini telah dilakukan sintesis katalis H-aluminosilikat melalui metode hidrotermal dengan rasio Si/Al sebesar 20. Karakterisasi yang telah dilakukan meliputi uji XRD, FTIR, dan keasaman.Hasil XRD menunjukkan katalis H-aluminosilikat berbentuk amorf, sedangkan pada FTIR menunjukkan ikatan Si-O-Al pada bilangan gelombang 457 cm-1. Uji situs asam menunjukkan katalis H-aluminosilikat memiliki jumlah asam Brønsted sebesar 0.0272 mmol/g dan jumlah sisi asam Lewis sebesar 0.0005 mmol/g. Proses perengkahan asam oleat telah dilakukan pada suhu 340oC selama 3 jam dan 5 jam. Produk cracking yang diuji dengan GC-MS tidak menunjukkan pembentukan senyawa biogasoline.Kata kunci: H-aluminosilikat, biogasoline, asam oleat

Ion Impregnation Effect of Fe, Cu, Cr-attributed Mordenite on Stearic Acid Cracking Abdulloh Abdulloh; Ulfa Rahmah; Satya Candra Wibawa Sakti; Alfa Akustia Widati; Ahmadi Jaya Permana; Rochadi Prasetya; Musbahu Adam Ahmad; Mochamad Zakki Fahmi
Indonesian Journal of Chemistry Vol 22, No 3 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.71126

The improvement in the design of mordenite-based catalysts focuses on the present study to fulfill the massive demand for bio-aviation fuel (BAF) as renewable energy. Modification of the mordenite through ionic impregnation of Fe, Cu, and Cr, has supported the mordenite to perform with better efficiency and activity in catalyzing the cracking process of stearic acid. The adjustment on catalytic activity was carried out by simply reacting the catalyst with stearic acid at 190 °C and investigating cracking products with Gas Chromatography-Mass Spectroscopy. The results of the GC-MS test of the cracking product showed the formation of alkane-alkene and aromatic compounds. BAF was selectively obtained (30.27%) when the reaction was catalyzed by FeCuCr/mordenite catalyst. The BAF derived from FeCuCr/mordenite contained hydrocarbons that include xylene, mesitylene, dodecane, tridecane, tetradecane, and pentadecane. However, reduced selectivity was realized (19.85%) when the reaction was catalyzed by nano FeCuCr/mordenite. Its hydrocarbon constituents include benzene, tetradecane, and pentadecane compounds.

PENGGUNAAN MEDIA SOSIAL (YOUTUBE) SEBAGAI MEDIA INOVATIF DALAM PEMBELAJARAN DI MADRASAH GRESIK Abdulloh Abdulloh; Mochamad Zakki Fahmi; Imam Siswanto
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol. 5 No. 1 (2019)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ja.v5n1.p33-37

The community service activities have been carried out at Madrasah Aliyah Masyhudiyah Gresik. Thepurpose of service is: 1) providing understanding to teachers in making learning material throughYouTube, 2) providing motivation to teachers, 3) building teachers' confidence, and 4) using YouTube forfun learning tools. Methods of activities are lectures, demonstrations, workshops and training using theCamtasia application. Data collection techniques are based on the results of the pretest - posttest andparticipatory approach. Data analysis to measure the success category is done by calculating thepercentage of correct answers for each aspect asked, the percentage of learning videos made and thenumber of learning videos uploaded. The results of the activities are: 1) the teacher's understanding inmaking construction of video-based learning materials on average increased by 52%, 2) 100% of teachershave made videos for learning media using the Camtasia application, 3) 30% of teachers have uploadedlearning videos on social media YouTube This activity resulted in an increase in teacher understandingrelated to the importance of using YouTube as a learning medium and videos containing learning materialscreated by madrasa teachers.

Co-Authors Ahmadi Jaya Permana Alfa Akustia Widati Deasi Adhiani Farida Didik Prasetyoko Faiz Tamamy Ganden Supriyanto Imam Siswanto Khoirun Nisak R Mochamad Zakki Fahmi Mudasir Mudasir Musbahu Adam Ahmad Nanik Siti Aminah Nizar Hardiansyah Purkan Purkan Rochadi Prasetya Satya Candra Wibawa Sakti Siti Maryam Triyono Triyono Ulfa Rahmah Wega Trisunaryanti

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