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All Journal VALENSI Jurnal Natur Indonesia Gorga : Jurnal Seni Rupa The Journal of Pure and Applied Chemistry Research Jurnal Riset Kimia PROSIDING SEMINAR KIMIA MUDRA Jurnal Seni Budaya Indonesian Journal of Chemistry Dance and Theatre Review: Jurnal Tari, Teater, dan Wayang Batoboh : Jurnal Pengabdian Pada Masyarakat Jurnal Ecolab JURNAL PHOTON PROSIDING: SENI, TEKNOLOGI, DAN MASYARAKAT PROPORSI : Jurnal Desain, Multimedia dan Industri Kreatif Jurnal Riset Teknologi Pencegahan Pencemaran Industri Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks REACTOR : Journal of Research On Chemistry And Engineering Journal of Multidisciplinary Applied Natural Science JURNAL KIMIA SAINTEK DAN PENDIDIKAN Jurnal Natural SAINTI: Majalah Ilmiah Teknologi Industri
Novesar Jamarun
Universitas Andalas
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Social Sciences Other

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PENGOLAHAN LIMBAH POLIPROPILEN MENJADI BAHAN BAKAR CAIR MELALUI METODE PIROLISIS Restina Bemis; Novesar Jamarun; Syukri Arief
Jurnal Riset Kimia Vol. 5 No. 2 (2012): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v5i2.217

Abstract

Plastics become the biggest environmental problem when it accumulate in landfills because its non-biodegradable properties. To handle the problems, the plastics were processed to produce liquid fuels by means pyrolysis method which was in this case with and without a catalyst. In this work, polypropylene was used as a precursor and SiO2, zeolites, CaO, Fe as catalysts. FTIR spectrum of pyrolized polypropylene with and without catalysts both have shown C = C functional group at 1648 cm-1. GCMS analysis confirmed the availability of chain length of hydrocarbon between C7 -C27 which is mixture of kerosene and diesel fractions. Catalysts can lower the temperature and time reaction of pyrolysis process as they increase rendement (%) of product. Liquid fuels that produced from polypropylene pyrolysis without catalyst was 72.06%, and with catalysts were 79.59% (SiO2), 74.76%, (zeolite), 76.80% (CaO), and 76.83% (Fe).
Production of Starch-Based Bioplastic from Durio zibethinus Murr Seed Using Glycerol as Plasticizer Nanda Raudhatil Jannah; Novesar Jamarun; Yulia Eka Putri
Jurnal Riset Kimia Vol. 12 No. 2 (2021): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v12i2.398

Abstract

Bioplastics are bio-based plastics from natural resources, made to replace conventional plastics. The utilization of biopolymers in bioplastics provide a faster degradation compared to petroleum-based plastics. Starch-based bioplastic from mixing Durio zibethinus Murr starch and glycerol as plasticizer have been conducted. In this research, the concentration of glycerol has been varied to study the effect on starch-based bioplastics mechanical properties. The tensile strength for Durio zibethinus Murr starch-based bioplastic with 20% glycerol was 50.28 MPa with 13.3% elongation. The functional group found on the Fourier transform infrared spectroscopy (FTIR) spectra indicated the presence of O-H stretch, C-H stretch, C=O stretch, and C-O stretch which stated the formation of bioplastic. The image results gained from scanning electron microscope (SEM) showed that the morphology surface of bioplastic was less homogenous and rough. The soil burial test for biodegradability showed Durio zibethinus Murr starch-based bioplastic achieved 38.9% weight loss in a 5-day observation.
PITUAH PAIKEK: PENCIPTAAN KARYA TARI BERANGKAT DARI RITUS PERALIHAN MALAM BAINAI DI SUMATERA BARAT Cici Wulandari; Susas Rita Loravianti; Novesar Jamarun
Gorga : Jurnal Seni Rupa Vol 10, No 2 (2021): Gorga : Jurnal Seni Rupa
Publisher : Fakultas Bahasa dan Seni Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/gr.v10i2.27240

Abstract

Pituah Paikek's work is a dance work that departs from the Malam Bainai culture in West Sumatra. The idea of creation focuses on the philosophical meaning of the henna on the bride's nails. The formulation of the creation of Piuah Paikek's work is how to interpret the meaning and symbols of the bride's bainai nails into a dance work. The purpose of this dance work is to present the experience of the Bainai Night rite of passage into a contemporary dance form with a dramatic type. The creation methods used include: research, exploration, improvisation, formation and evaluation. The creation of this Pituah Paikek dance work produces a dance work that has three parts, namely: the first part is a symbolic representation of the Bainai activity, the second part is a symbolic representation of the meaning of the finger and the third part is an affirmation of each value of the Bainai finger.Keywords: pituah paikek, malam baianai, contemporary. AbstrakKarya Pituah Paikek adalah karya tari yang berangkat dari budaya Malam Bainai di Sumatera Barat. Ide penciptaan berfokus kepada makna filosofis dari inai di kuku calon pengantin wanita. Rumusan penciptaan dari karya Piuah Paikek ini adalah bagaimana menginterpretasikan makna dan simbol dari kuku bainai calon pengantin wanita menjadi sebuah karya tari. Tujuan dari karya tari ini adalah menampilkan pengalaman dari ritus peralihan Malam Bainai ke dalam bentuk tari kontemporer dengan tipe dramatik. Metode penciptaan yang digunakan, antara lain: riset, eksplorasi, improvisasi, pembentukan dan evaluasi. Penciptaan karya tari Pituah Paikek ini menghasilkan karya tari yang memiliki tiga bagian, yaitu: bagian pertama sebagai representasi simbolis dari aktivitas bainai, bagian kedua adalah representasi simbolis dari makna jari dan bagian ketiga adalah penegasan setiap nilai dari jari bainai.Kata Kunci: pituah paikek, malam bainai, kontemporer. Authors:Cici Wulandari : Institut Seni Indonesia PadangpanjangSusas Rita Loravianti : Institut Seni Indonesia PadangpanjangNovesar Jamarun : Institut Seni Indonesia Padangpanjang References:Alma M. Hawkins. (2003). Bergerak Menurut Kata Hati: Metoda Baru dalam menciptakan Tari (Terj. Iwayan Dibia). Indonesia: Masyarakat Seni Pertunjukan Indonesia (MSPI).Devi, Cintya. (2019). "Malam Bainai". Hasil Wawancara Pribadi: 23 Agustus 2019, Padang.Hadi, Sutrisno. (2007). Statistik 2. Yogyakarta: Andi Offset.Kurniawan. (2001). Semiologi Roland Barthes. Magelang: Yayasan Indonesia Tera.Lawranta, Gangga. (2021). "Malam Bainai". Hasil Dokumentasi Pribadi: 31 Juli 2021, Padangpanjang.Mak Katik. (2021). "Malam Bainai". Hasil Wawancara Pribadi: 18 Februari 2021, Padang.Oktora, D. R., Amsia, T., & Syaiful, M. (2017). Tradisi Malam Bainai pada Acara Perkawinan Adat Padang Pariaman di Kecamatan Rajabasa Kota Bandar Lampung. PESAGI (Jurnal Pendidikan dan Penelitian Sejarah), 5(7).Supriyanto, Eko. (2018). Ikat Kait Impulsif Sarira: Gagasan yang Mewujud Era 1990-2010. Yogyakarta: Penerbit Garudhawaca.Sylvia, S., Syahrel, S., & Marzam, M. (2014). Struktur Penyajian Malam Bainai pada Pesta Perkawinan di Kota Padang. Jurnal Sendratasik, 3(3), 71-78.Yudiaryani, dkk. (2017). Karya Cipta Seni Pertunjukan. Yogyakarta: JB Puplisher Bekerjasama Dengan Fakultas Seni Pertunjukan, Institut Seni Indonesia Yogyakarta.Zaimiati. (2019). "Malam Bainai". Hasil Wawancara Pribadi: 23 Agustus 2019, Padang.
ANALISIS SEKTROSKOPI INFRA MERAH DAN MORFOLOGI PADA KOMPOSIT POLIETILENA/KARET ALAM SIKLIS/PRECIPITATED CALCIUM CARBONATE YANG DIHASILKAN MELALUI METODE SISTEM PELARUT Ahmad Hafizullah Ritonga; Novesar Jamarun; Syukri Arief; Hermansyah Aziz; Yulidar Laila Safitri; Suarnikan Hulu; Barita Aritonang
PROSIDING SEMINAR KIMIA Prosiding SNKT Himpunan Mahasiswa Kimia FMIPA UNMUL 2021
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pada penelitian ini, kami melaporkan bahwa komposit Linear Low-Density Polyethylene (LLDPE)/karet alam siklis(KAS)/precipitated calcium carbonate (PCC) telah berhasil diperoleh melalui metode sistem pelarut. Penelitian inibertujuan untuk menganalisis perubahan gugus fungsi dengan fourier transform infrared (FTIR) dan mengkarakterisasisifat morfologinya dengan scanning elctron microscope (SEM) pada komposit LLDPE/KAS/PCC. Komposit ini dibuatmelalui metode pencampuran dengan sistem pelarut dengan adanya kompatibiliser LLDPE-g-AO. LLDPE, KAS, danLLDPE-g-AO dimasukkan secara bersama-sama ke dalam gelas beaker yang berisi pelarut xylene sebanyak 100 mL,diaduk hingga larut pada suhu 140 oC, lalu ditambahkan dengan bahan pengisi PCC sambil diaduk selama 10 menitagar PCC terdispersi merata. Hasil spektrum FTIR komposit polimer menunjukkan bahwa pita khas dari PCC terlihatpada daerah 872,1 cm-1. Hasil morfologi dengan SEM menunjukkan adanya perubahan signifikan pada strukturpermukaan pada komposit polimer setelah penambahan bahan pengisi PCC.Kata kunci : Komposit, PCC, LLDPE, KAS, Sistem Pelarut.
Pelatihan Pembuatan Desinfektan dan Hand Sanitizer Non-Alkohol di Kelurahan Seberang Padang, Kota Padang Yulizar Yusuf; Hermansyah Aziz; Adlis Santoni; Syukri Syukri; Novesar Jamarun; Bustanul Arifin; Olly Norita Tetra; Norman Ferdinal; Matlal Fajri Alif
Warta Pengabdian Andalas Vol 27 No 3 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.27.3.213-218.2020

Abstract

Seberang Padang Village, South Padang District, is next to Padang City, which has approximately 200 families. This location is a crossing area between Padang-Painan, in West Sumatra. The community consists of two existing traditional markets that sell daily necessities. Besides that, there is also one elementary school, two junior high schools, and one high school. The global Covid-19 pandemic certainly affects the community's daily activities and learning activities, including children, elementary school students, middle and high school students, and the village community to fulfil their basic needs. Furthermore, the main problem of Covid-19 is not only about the effects caused by the virus on sufferers but also about its high-speed transmission. Therefore, to educate the community around the Seberang Padang village, several Chemistry Lecturers and students at the Faculty of Mathematics and Natural Sciences at Andalas University did a community engagement. They taught the community about making disinfectants and hand sanitizers without alcohol that can overcome the occurrence of Covid-19 transmission. In addition, face masks were provided for the community, and the alms of food for underprivileged residents to push down the negative impact of Covid-19.
DEGRADASI SENYAWA PERMETRIN DENGAN MENGGUNAKAN ZEOLIT ALAM TERPILAR TiO2-ANATASE SECARA SONOLISIS Zilfa Zilfa; Hamzar Suyani; Safni Safni; Novesar Jamarun
Jurnal Ecolab Vol 5, No 1 (2011): Jurnal Ecolab
Publisher : Pusat Standardisasi Instrumen Kualitas Lingkungan Hidup Laboratorium Lingkungan (P3KLL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jklh.2011.5.1.35-43

Abstract

Permetrin merupakan golongan insektisida piretroid sintetik yang kurang toksik bagi mamalia tapi sangat toksik bagi ikan, serangga dan mikroorganisme air Penelitian tentang degradasi senyawa permetrin telah dilakukan dengan menggunakan zeolit alam terpilar TiO2-anatase secara sonolisis pada beberapa kondisi perlakuan.. Degradasi dilakukan secara sonolisis menggunakan gelombang ultrasonik dengan frekuensi 45 KHz. Sampel yang digunakan adalah permetrin 96,1%. Sedangkan zeolit alam terpilar TiO2-anatase digunakan sebagai katalis untuk membantu degradasi secara cepat dan efisien. Hasil iradiasi dianalisis dengan menggunakan spektrofotometer UV pada panjang gelombang 272 nm. Degradasi permetrin 20mg/L pada suhu 40oC dan waktu iradiasi 120 menit, tanpa penambahan zeolit alam terpilar TiO2- anatase mencapai 22,23%. Sedangkan degradasi permetrin 20 mg/L pada suhu 40oC dan waktu iradiasi 75 menit dengan penambahan 50 mg zeolit alam terpilar TiO2- anatase menghasilkan 81,10 %.
PENGARUH KONDISI KALSINASI PADA SINTESIS SENYAWA HYDROXYAPATITE Lisa Utami; Syukri Arief; Novesar Jamarun
Sistem Informasi Vol 2 No 1 (2011): Jurnal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v2i1.121

Abstract

Kalsium fosfat telah menjadi perhatian yang menarik dalam bidang medis dan kedokteran karena biocompatibilitynya yang baik dan struktur serta komposisi kimianya yang sama dengan fasa mineral jaringan keras manusia (tulang dan gigi). Penelitian ini difoukuskan untuk mempelajari faktor yang mempengaruhi morfologi dan komposisi fasa dari senyawa hydroxyapatite dengan menggunakan prekusor diammonium hydrogen phosphate sebagai sumber fosfat serta pengaruh kalsinasi pada suhu 200, 400, 600, 800 dan 1000oC. Produk hidroxyapatite yang dihasilkan dikarakterisasi dengan FTIR, XRD, SEM dan TGA. Hidroxyapatite yang dihasilkan dengan variasi suhu kalsinasi mempengaruhi morfologi dan komposisi fasa dari senyawa kalsium fosfat yang dihasilkan. Fasa yang terbentuk sebelum sampel powder fosfat dikalsinasi dengan (NH4)2HPO4 sebagai sumber fosfat adalah Ca2P2O7.2H2O dengan ukuran kristal 67 nm. Ketika sampel powder kalsium fosfat dikalsinasi pada temperatur 600˚C fasa yang terbentuk dengan menggunakan (NH4)2HPO4 sebagai sumber fosfat adalah hydroxiapatite (HAP) dengan ukuran kristal 8,66 nm Dan ketika sampel dikalsinasi pada temperatur 1000˚C fasa yang dihasilkan yaitu Ca2P2O7 dan Ca3(PO4)2.
Synthesis and Characterization of CaO Limestone from Lintau Buo Supported by TiO2 as a Heterogeneous Catalyst in the Production of Biodiesel Vivi Sisca; Aju Deska; Syukri Syukri; Zilfa Zilfa; Novesar Jamarun
Indonesian Journal of Chemistry Vol 21, No 4 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.64675

Abstract

Biodiesel constitutes an alternative to diesel fuel, developing a base catalyst in cost efficiency and reducing the impact on the environment due to toxic waste and excessive chemicals. This study employed a mixture of an oxide catalyst, CaO/TiO2, which was ably synthesized as a heterogeneous catalyst to convert waste frying oil (WFO) into biodiesel. Heterogeneous catalysts have been characterized by XRD, FT-IR, TEM, SEM-EDX, and BET to identify their crystal type, morphology, composition, and surface area. Catalytic activity was affected by the amount, oil/methanol ratio, reaction temperature, and duration. A 94% biodiesel yield was achieved by optimizing the following reaction parameters: 5wt.%, 6:1 methanol: oil, 65 °C, for 4 h. The addition of TiO2 to CaO improves the catalyst stability and transforms the reactants into products. The structure and characteristics of TiO2 maintained stability and supported CaO well. Its repeated biodiesel fuel production demonstrated the catalyst stability from WFO throughout the transesterification reaction.
Influence of LLDPE-g-MA on Mechanical Properties, Degradation Performance and Water Absorption of Thermoplastic Sago Starch Blends Denny Akbar Tanjung; Novesar Jamarun; Syukri Arief; Hermansyah Aziz; Ahmad Hafizullah Ritonga; Boy isfa
Indonesian Journal of Chemistry Vol 22, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.68558

Abstract

The addition of LLDPE-g-MA into the compound of sago starch/LLDPE was studied to improve its mechanical, morphology, degradation performance, and water absorption properties. Thermoplastic Sago Starch was composed of a mixture of sago starch and glycerol. LLDPE-g-MA was prepared in varied concentrations based on the weight of TPSS (0, 6, 8, 10, and 14 wt.%) by reacting LLDPE, maleic anhydride, and benzoyl peroxide using an internal mixer. The results showed an increase in values obtained from mechanical tests, i.e., tensile strength was improved from 0.6902 to 3.6187 N/mm2 with the addition of LLDPE-g-MA at 10 wt.%. The addition also resulted in a 1.44% increment in elongation at break and 251 N/mm2 for Young's Modulus. The surface morphology of the sample demonstrated an excellent interfacial adhesion reaction or LLDPE dispersion over the entire surface of the matrix (starch). The water absorption test continued to decrease with the increase in the LLDPE-g-MA concentration from 53 wt.% (without LLDPE-g-MA) to 14 wt.% at 10 wt.% LLDPE-g-MA concentration. The degradation performance showed that the sample could be degraded under all three conditions for up to 30 days. 
Improvement of Mechanical, Thermal, and Morphological Properties of Organo-Precipitated Calcium Carbonate Filled LLDPE/Cyclic Natural Rubber Composites Ahmad Hafizullah Ritonga; Novesar Jamarun; Syukri Arief; Hermansyah Aziz; Denny Akbar Tanjung; Boy Isfa
Indonesian Journal of Chemistry Vol 22, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.68888

Abstract

This study investigates the improvement of the mechanical, thermal, and morphological properties of linear low-density polyethylene (LLDPE)/cyclic natural rubber (CNR) after the addition of organo-precipitated calcium carbonate (O-PCC). The impact on the properties of the LLDPE/CNR/LLDPE-g-OA/O-PCC composites was investigated by a series of empirical experiments. First, the polymer composite was blended in the molten state using an internal mixer with a heating temperature of 160 °C and a rotation speed of 100 rpm. The LLDPE was placed in a chamber of internal mixer until melted, followed by CNR, LLDPE-g-OA, and O-PCC. The polymer composites with an O-PCC concentration of 5% obtained the optimal mechanical properties compared to other variations, with a tensile strength of 17.17 MPa and Young's modulus of 252.68 MPa. The presence of O-PCC resulted in better thermal stability and a change in the melting point temperature of 124 °C. The FTIR spectra of the polymer composite showed the specific characteristics of O-PCC at 872.1 cm–1. The morphology of the polymer composite indicates that the O-PCC is evenly dispersed in the polymer composite.
Co-Authors -, Yulfitrin Adlis Santoni Ahmad Hafizullah Ritonga Aju Deska Akmal Djamaan Amirullah, Tri Yupi Anggresani, Lia Arifin, Indra Aritonang, Barita Arizal Firmansyah Asril Asril Boy Isfa Boy isfa Budi Hermawan BUSTANUL ARIFIN Caniago, Sintia Cici Wulandari DARMANSYAH . Denny Akbar Tanjung Denny Akbar Tanjung Didik Prasetyoko Edy Suisno Elfina, Sri Emriadi - Fachry Abda El Rahman Fadhilatul Khaira Fejri Subriadi Firdaus Firdaus G Gunawarman, G Giovani Giovani Hafnimardiyanti Hafnimardiyanti Hamzah Hamzah Hamzah Hamzah Hamzar Suyani HAR, Rusli Heri Satria Hermansyah Aziz Hermawan, Budi Ilim Ilim Islami, Dini Muthi'ah Iswandi Iswandi Kamisah Delilawati Pandiangan Kamisah Delilawati Pandiangan Lia Anggresani Lisa Utami Lisa Utami Mansur Halilintar Matlal Fajri Alif Nabiila Ayyu Trycahyani Nanda Raudhatil Jannah Navisha Yustitia Norman Ferdinal Olly Norita Tetra PRAMUTOMO, R.M Prasejati, Arika Putri, Dhea Rahmanda R.Y. Perry Burhan, R.Y. Perry Restina Bemis Restina Bemis, Restina Reza Audina Putri Risma Sari Rosliana Lubis Rosta Minawati Rosta Minawati Roswita Roswita Rycce Sylviana Pratikha Rycce Sylviana Pratikha Safni Safni Selfa Dewati Samah Selvi K asman Sisca, Vivi Solly Aryza Sri Elfina Sri Elfina Suarnikan Hulu Sumaryati Syukur Suparli, Lili Surya Darma Susas Rita Loravianti Syukri - Syukri - Syukri Arief Syukri Syukri Tanjung, Denny Akbar Tricahyani, Nabiila Ayyu Trio Saputra Upita Septiani Vivi Sisca Vivi Sisca Wasinton Simanjuntak Wellia, Diana Vanda Wulandari Wulandari Yulfitrin - Yuli Yetri Yuli Yetri Yulia Eka Putri, Yulia Eka Yulidar Laila Safitri Yulizar Yusuf Yundari, Yundari Zetra, Yulfi Zilfa Zilfa