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All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat Syntax Idea Indonesian Journal of Chemical Science and Technology
Rini Selly
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Social Sciences Other

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Penentuan Metode Semiempirikuntuk Insektisida Turunan Sulfenil MetilKarbamat Rini Selly
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 21, No 81 (2015)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v21i81.3440

Abstract

Penelitian ini bertujuan sebagai uji pendahuluan HKSA (Hubungan Kuantitatif Struktur dan Aktivitas)dalam pemilihan metode semiempirik yang tepat bagi senyawa insektisida. Senyawa yang dijadikan dasar untuk penelitian adalah senyawa insektisida turunan sulfenil metilkarbamat. Senyawa turunan sulfenil metilkarbamatdiperoleh dari literatur. Metode semiempirik yang dibandingkan adalah CNDO, INDO, MNDO, AM1 dan PM3. Pemilihan metodedidasarkan pada perbandingan data panjang ikatan, sudut ikatan dan sudut torsi hasil perhitungan komputasi dengan hasil eksperimen yang diperoleh dari literatur.Perbedaan pada sudut torsi terutama pada atom O3-C11-O2-C1, dimana selisih AM1 dengan data eksperimen sebesar 1,461 poinmenyimpulkan bahwa metode yang paling tepat digunakan untuk perhitungan secara komputasi terhadap insektisida senyawa turunan sulfenilmetilkarbamat adalah metode AM1.
Penerapan Model Pembelajaran Fslc Menggunakan Media Tts untuk Meningkatkan Motivasi dan Hasil Belajar Pokok Bahasan Elektrolit dan non Elektrolit Nada Khairun Nisa; Rini Selly
Syntax Idea Vol 4 No 8 (2022): Syntax Idea
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/syntax-idea.v4i8.1943

Abstract

Salah satu materi kimia yang sulit dipahami oleh siswa di SMAN 1 Tebing Tinggi adalah elektrolit dan non elektrolit. Untuk meningkatkan hasil belajar siswa agar mampu memahami materi tersebut perlu diiringi dengan adanya motivasi. Salah satu cara untuk meningkatkan motivasi yakni dengan menggunakan model pembelajaran kooperatif FSLC, dibarengi dengan penggunaan media TTS untuk membantu meningkatkan hasil belajar siswa. Penelitian ini memiliki tujuan untuk: 1) mengetahui perbedaan motivasi belajar siswa pada model pembelajaran kooperatif FSLC menggunakan media teka-teki silang 2) mengetahui perbedaan peningkatan hasil belajar siswa kelas X SMAN 1 Tebing Tinggi yang diajarkan metode kooperatif FSLC dengan menggunakan media teka-teki silang pada materi elektrolit dan non elektrolit 3) mengetahui korelasi antara motivasi dan hasil belajar siswa setelah pembelajaran kooperatif FSLC dengan menggunakan media teka-teki silang pada materi elektrolit dan non elektrolit. Metode yang digunakan yaitu metode kuantitatif dan model yang digunakan yaitu model pembelajaran kooperatif FSLC. Hasil penelitian menunjukkan adanya perbedaan signifikan motivasi belajar siswa yang diajar dengan metode FSLC menggunakan teka-teki silang dibandingkan dengan motivasi belajar siswa yang diberikan dengan pembelajaran konvensional pada mata pelajaran elektrolit dan non elektrolit dengan nilai sig. sebesar 0,013 < 0,05. Hasil belajar terdapat perbedaan signifikan yang diajar dengan pembelajaran FSLC menggunakan TTS dibandingkan dengan pembelajaran konvensional, ditandai dengan nilai Sig. sebesar 0,02 maka Ha diterima. Terdapat korelasi yang signifikan antara motivasi belajar siswa dengan hasil belajar siswa dengan nilai signifikan 0,039, hasil ini menunjukkan bahwa motivasi berhubungan secara signifikan dengan hasil belajar siswa.
Application of Rotary Dryer Modification Technology to Increase Animal Feed Production Efficiency Moondra Zubir; Agus Junaidi; Rini Selly; Siti Rahmah; Hafni Indriati Nasution; Zainuddin Muchtar
Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat Vol. 6 No. 2 (2022)
Publisher : Universitas Ahmad Dahlan

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Abstract

Lorong Ujung Tanjung Dua, Lingk 15, Bagan Deli Village, Belawan, North Sumatra became the location of this community research and service with Mr. Deddy Suryono as the owner of the business as the partner. His business activity is processing seafood shell waste into animal feed products. This business partner had problems whereas manual drying prolong the time due to the natural causes. Furthermore, the market of the product was in lower level due to the absence of explanation of the content of the product and also the brand name. One of the solution to propose is a high quality functional drying oven with eligible size and fixed temperature. Secondly, to increase the marketing of the product it need to be standardize by laboratory and make the brand name. The results, Rotary Dryer Modification Technology was used as the dryer which increased the product 4 times in quantity. The product was analysed in laboratory with three type of products whereas Shrimp Skin, Crab Skin and Fish Skin. The lab result showed that fish skin has the highest protein more than 50%. The brand name then named as EBYPRO.
Adsorption and Desorption Properties of Beta Carotene in Crude Palm Oil on Activated Carbon Composites of Oil Palm Empty Fruit Bunches with MOFs-Cu(TAC) Frengky Sanjaya Ginting; Yunita Dwi Utami; Desika Devani Br Surbakti; Dika Fahreza; Wella Apriwidyanti; Therecia Fricillia Ginting; Putri Faradilla; Rini Selly; Jasmidi; Moondra Zubir
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 8 No. 1 (2025): JANUARY 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v8i1.68660

Abstract

Oil palm bunches Empty fruit bunches are the main lignocellulosic solid waste that has not been optimally utilized, so many empty bunches are not processed. Unprocessed EFB causes a foul odor and becomes a place for flies to nest. Thus, it is considered as waste that pollutes the environment. Adsorption is a popular new method to reduce heavy metal content and waste in water, in addition the adsorption method is also effective and efficient in terms of the absorption process, and can also be a regeneration adsorbent. This study began with the preparation of empty oil palm bunches which were then carbonized and activated with H3PO4, then synthesized with MOFs-Cu(TAC). The final stage was tested for absorption by optimizing mass and time. The XRD pattern shows sharp peaks that appear on the graph indicating metal contact and the KA-Cu(TAC) composite has a good and regular crystal structure. The KA-Cu(TAC) composite has great potential as an alternative adsorbent to improve the quality of palm oil because it has good absorption.
Adsorption and Desorption Properties of Beta-Carotene in Crude Palm Oil (CPO) Using Empty Fruit Bunch-Based Activated Carbon Composite with Metal-Organic Frameworks (MOFs) - Fe(TAC) Yunita Dwi Utami; Trivena Myta Br. Manik; Frengky Sanjaya Ginting; Chyntya Angelina PN; Sri Rahayu; Syafrina Letare Lubis; Jasmidi; Rini Selly; Putri Faradilla; Moondra Zubir
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 8 No. 1 (2025): JANUARY 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v8i1.68676

Abstract

The rapid expansion of oil palm plantations in North Sumatra, from 31,730,961 hectares in 2016 to 41,667,011 hectares in 2018, has resulted in significant solid waste generation, particularly empty fruit bunches (EFB). This study aims to utilize EFB as a precursor for activated carbon production and evaluate its effectiveness in adsorbing beta-carotene from crude palm oil (CPO). EFB was processed through carbonization and activation to create a composite adsorbent KA-Fe(TAC) synthesized with metal-organic frameworks (MOFs). Characterization using X-ray diffraction (XRD) confirmed the crystalline structure of the composite. Results indicated that the optimal adsorption efficiency for activated carbon was 8.925%, while the KA-Fe(TAC) composite achieved 21.645%. The findings suggest that the KA-Fe(TAC) composite significantly enhances beta-carotene adsorption capacity compared to conventional activated carbon. Additionally, the optimal contact time for adsorption was found to be 60 minutes for activated carbon and 150 minutes for the KA-Fe(TAC) composite, indicating improved efficiency over time.
Effect of Cu and Fe Metals on the Synthesis of Activated Carbon Composites of MOFs Cu(TAC) and Fe(TAC) Anggi Nurhasanah Siregar; Jasmidi; Moondra Zubir; Rini Selly; Putri Faradilla
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 8 No. 1 (2025): JANUARY 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v8i1.68680

Abstract

The research focuses on improving the structure and quality of activated carbon by synthesizing porous polymers or Metal-Organic Frameworks (MOFs). Characterization of AC-Cu(TAC)2 and AC-Fe(TAC)3 is carried out using XRD, SEM, and EDX instruments. Characterization of AC- Cu(TAC)2 and AC-Fe(TAC)2 revealed that the observed XRD pattern is representative of the structure of crystalline materials, with AC-Cu(TAC)2 and AC-Fe(TAC)3 having a crystallinity of 40% with both materials forming a triclinic crystal system. Characterization based on SEM at 200x magnification shows that the fibers are interbonded and attached to the cross-section on AC- Cu(TAC)2 , having a relatively large porosity so that it shows a fairly strong bond between activated carbon and Cu(TAC) MOFs. the size of the fragmented fiber particles in AC-Fe(TAC)3 which is relatively not the same as the smaller porosity. EDX characterization shows that Cu and Fe metals are one of the composite materials.
Co-Authors Agus Junaidi Anggi Nurhasanah Siregar Chyntya Angelina PN Desika Devani Br Surbakti Dika Fahreza Frengky Sanjaya Ginting Hafni Indriati Nasution Jasmidi Moondra Zubir Moondra Zubir Nada Khairun Nisa Putri Faradilla siti rahmah SRI RAHAYU Syafrina Letare Lubis Therecia Fricillia Ginting Trivena Myta Br. Manik Wella Apriwidyanti Yunita Dwi Utami Zainuddin Muchtar