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All Journal Komunikasi Fisika Indonesia CHEMICA Jurnal Teknik Kimia Jurnal Riset Kimia EduChemia (Jurnal Kimia dan Pendidikan) Jurnal Litbang Industri CHEMPUBLISH JOURNAL Jurnal Pendidikan Kimia Universitas Riau Jurnal Penelitian Sains Chemistry Indonesian Journal of Chemical Research LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Eksakta : Berkala Ilmiah Bidang MIPA JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Abdimas Mahakam Jurnal Daur Lingkungan Jurnal Bio-Geo Material Dan Energi (J-BiGME) Jurnal Pengabdian dan Pemberdayaan Masyarakat Kepulauan Riau (JPPM KEPRI) Jurnal Ilmiah Ibnu Sina (JIIS): Ilmu Farmasi dan Kesehatan Jurnal Litbang Industri Journal of Fibers and Polymer Composites Jurnal Karya Abdi Masyarakat Jurnal Rekayasa Kimia & Lingkungan Literasi: Jurnal Pengabdian Masyarakat dan Inovasi Parapemikir Jurnal Ilmiah Farmasi
Intan Lestari
Chemistry, Faculty Of Science And Technology, Universitas Jambi, Jl. Jambi-Ma. Bulian KM 15 Mendalo Darat Jambi 36361, Indonesia
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Pengaruh Konsentrasi Aktivator Terhadap Kualitas Karbon Aktif dari Batubara Lignit Arif Nurrahman; Edwin Permana; Diah Riski Gusti; Intan Lestari
Jurnal Daur Lingkungan Vol 4, No 2 (2021): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/daurling.v4i2.86

Abstract

Activated carbon has been widely used in everyday life. One of them is in water purification. Materials for making activated carbon have been made and researched. Coal is one of the materials that can be processed into activated carbon. The availability of coal in Indonesia is quite abundant and has the potential to be used as activated carbon. The coal used is lignite. This coal is categorized as light coal where its use is only used as fuel in industry. It is hoped that the activated carbon from this coal will become an alternative source of coal use in Indonesia. Activated carbon from coal uses a variable concentration of 0.5 M, 1 M, 1.5 M, 2 M, 2.5 M, 3 M with HCL activator solution. It is hoped that the results of this study are in accordance with the quality standard of SNI 06-3730-1995.
Preparation and Characterisation of Composite Magnetite Fe3O4-Activated Carbon as Adsorben of Phenol Intan Lestari; Agnes Vionita Yohana; Faizar Farid; Diah Riski Gusti
Jurnal Riset Kimia Vol. 13 No. 1 (2022): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v13i1.442

Abstract

Preparation and characterization of magnetite Fe3O4-palm shell activated carbon composite has been carried out as an adsorbent of phenol compounds. Composites were preparation using the co-precipitation  method by mixing Fe3O4 magnetite and suspension of activated carbon in water at 2:1 ratio by co-precipitation method. The functional groups, morphology and magnetization of the composites were characterized by FTIR, XRD, SEM-EDX and VSM. The XRD characterization result showed that the irregular activated carbon diffraction pattern on the composite showed that the carbon structure was amorphous and the peak was typical of Fe3O4 at an angle of 2θ 35.3961˚ with the distance of the diffraction plane or d = 2.53387Ǻ. VSM characterization shows the magnetic properties of magnetite are super paramagnetic with the resulting magnetization value of 15.93 emu/g, the remanence value (Mr) is 1.79 emu/g and the coercivity value (Hc) is 131.64 Oe. Adsorbent used for phenol adsorption with optimum at pH 6 with adsorption capacity was       6.71 mg/g, 120 minute contact time with adsorption capacity was 9.63 mg/g and the amount of phenol absorbed reached equilibrium a concentration of 300 mg/L of phenol with an adsorption capacity is 58.6 mg/g. The kinetics parameter showed that the adsorption followed pseudo second-order model.
INTERPRETASI AKUSTIK IMPEDANSI (AI) MENGGUNAKAN DATA SEISMIK DAN DATA SUMUR UNTUK MENENTUKAN ZONA PROSPEK HIDROKARBON Hanum Eko Hapsari; Intan Lestari; Samsidar Samsidar
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (63.959 KB) | DOI: 10.31258/jkfi.15.2.135-138

Abstract

Research has been conducted to determine the prospect of hydrocarbon zones using the interpretation of acoustic impedance (AI) seismic method in Field X, South Sumatra Basin, Jambi Province. The purpose of this study was to determine the AI value on the distribution map of AI values for hydrocarbon prospect zones in Field X. In this study the data used were 3D seismic data with PSTM (Post-Stack Time Migration) type, and well data. Data processing using Hampson and Russell (HRS) software used in the mining and petroleum fields has a function for subsurface modeling below the ground surface of reservoir characterization. Well data will be linked to seismic data so that the well data will be in the actual position. The distribution of hydrocarbon prospect zones in PEV-1 well can be seen first in crossplot analysis at a depth of 1760-1798 m with AI cutoff value indicated as sandstone ranging from 8450 (m s)*(g/cc) and above, with a high correlation value 0.818 time shift 0 ms. Picking horizon is carried out to determine the target zone layer and its continuity laterally on seismic volume so that a model based can be done as an initial subsurface description below the soil surface at PEV-1 well. Then the next step is a post-stack analysis based model to find out how much the error value of the target zone prediction with certain parameters through the PEV-1 well data. So with a correlation value of 0.936429 and an error value of 0.35227 in the post-stack analysis model based, AI inversion in the PEV-1 well layer which is the target zone of the hydrocarbon prospect is indicated by the range of 8450 (m/s)*(g/cc) which is indicated as sandstone.
Analysis of Borax in Ground Red Chilies in the Traditional Markets of Jambi City Havizur Rahman; Mia Prajuwita; Dika Zamri Yanni; Putri Maya Sari; Intan Lestari
EduChemia (Jurnal Kimia dan Pendidikan) Vol 5, No 1 (2020)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.287 KB) | DOI: 10.30870/educhemia.v5i1.6520

Abstract

Preservatives are one of the food additives used to preserve perishable foods. Based on Peraturan Menteri Kesehatan RI No. 033 Tahun 2012  about food additives, sodium tetraborate or borax is classified in additives, which are prohibited being used in food. However in reality, there are still used.  The purpose of this study is to identify and measure levels of borax compounds in ground red chilies that are sold in the traditional markets of Jambi city. Qualitative analysis of borax in ground red chilies using a color test method using Tumeric paper. While the quantitative analysis of borax in ground red chilies using UV-Vis Spectrophotometry at the wavelength of 550 nm. Borax identification results showed that 25 samples the ground red chilies tested contained borax with average concentration 1,998 mg/gram of borax compound. Analysis of the results of the test of borax content with SPSS using the Chi-square test indicated that there was no relationship between the selection of ground red chilies with the use of borax as a food preservative.
Pengaruh pH dan dosis adsorben dari limbah lumpur aktif industri crumb rubber terhadap kapasitas penyerapan ion Cd(II) dan Zn(II) Salmariza Sy; Desi Kurniawati; Intan Lestari; H Harmiwati; Monik Kasman
Jurnal Litbang Industri Vol 8, No 2 (2018)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (687.214 KB) | DOI: 10.24960/jli.v8i2.4290.95-104

Abstract

Pernelitian dengan sistim batch telah dilakukan untuk mempelajari pengaruh perlakuan pH larutan dan dosis adsorben yang dibuat dari limbah lumpur aktif industri crumb rubber (LLA-ICR) terhadap kapasitas adsorpsi dan efisiensi penyisihan ion Cd(II) dan Zn(II) dalam larutan.  Pengamatan meliputi variasi pH larutan pada range 1-7 dan dosis adsorben LLA-ICR 0,1 g - 1,0 g. Karakterisasi adsorben sebelum dan sesudah proses adsorpsi dilakukan dengan menggunakan FTIR, XRF dan SEM–EDX. Hasil penelitian menunjukkan bahwa perlakuan pH larutan dan dosis adsorben berpengaruh pada kapasitas adsorpsi dan efisiensi penyisihan ion Cd(II), dan Zn(II).  pH optimum didapatkan pada pH 5. Semakin rendah dosis adsorben, maka semakin tinggi kapasitas adsorpsi namun semakin rendah efisiensi penyisihan ion Cd(II) dan Zn(II).  Dosis adsorben optimum didapatkan pada 0,1g, dengan kapasitas adsorpsi dan efisiensi penyisihan ion Cd(II) > Zn(II). Kapasitas adsorpsi maksimum untuk ion Cd(II) dan  Zn(II) berturut-turut 29,8 mg/g dan 10,3 mg/g. Efisiensi penyisihan maksimum intuk ion Cd(II) dan ion Zn(II) adalah 95,4% dan 87,9%. AbstractA batch system has been carried out to study the treatment effect of pH solution and adsorbent dosage derived from crumb rubber (LLA-ICR) industrial activated sludge on the adsorption capacity and removal efficiency of Cd(II) and Zn(II) ions in aqueous solution. Observations included variations in the the solution pH in the range 1-7 and the LLA-ICR adsorbent dosage of 0.1 g - 1.0 g. Characterization of the adsorbent before and after the adsorption process was carried out using FTIR, XRF, and SEM-EDX. The results showed that the treatment of the pH solution and the adsorbent dose affected the adsorption capacity and removal efficiency of Cd(II) and Zn(II) ions. The optimum pH was obtained at pH 5. The lower the adsorbent dose the higher the adsorption capacity, however the lower the efficiency removal of Cd(II) and Zn(II) ions. The optimum adsorbent dosage was obtained at 0.1 g with adsorption capacity and removal efficiency of Cd(II) > Zn(II) ions. The maximum adsorption capacity for Cd(II) and Zn(II) ions were 29.8 mg/g and 10.3 mg/g respectively. The maximum removal efficiency forCd (II) and Zn(II) ions were 95.4% and 87.9%.
Biosorpsi ion Cd+2 oleh adsorben dari daun nenas (Ananas comosus) teramobilisasi dalam Ca-alginat Nurhidayah Nurhidayah; Diah Riski Gusti; Lenny Marlinda; Intan Lestari
Jurnal Litbang Industri Vol 10, No 2 (2020)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v10i2.6304.139-146

Abstract

Daerah Tangkit Provinsi Jambi dikenal sebagai daerah penghasil nenas.. Pada musim panen buah nanas,  banyak ditemukan daun nanas yang tidak dimanfaatkan .Daun nanas mengandung selulosa yang dapat digunakan sebagai biosorben untuk mengadsorpsi ion-ion logam. Biosorpsi ion Cd+2 dalam larutan dipelajari menggunakan biosorben daun nanas yang teramobilisasi dalam Ca-alginat ( BDNC) dengan metode batch pada suhu kamar. Penelitian ini bertujuan untuk menentukan kapasitas biosorpsi biosorben daun nanas teramobilisasi dalam Ca-alginat sebagai alternatif biosorben ion logam dari limbah alami. Kapasitas adsorpsi pada kondisi optimal diperoleh pada pH 6, waktu kontak selama 120 menit dan konsentrasi 300 mg/L adalah 28,56 mg/g. Mekanisme biosorpsi cenderung secara isoterm langmuir dengan nilai R2 = 0,9632, KL = 0,0527 L/mg, yang menunjukkan kekuatan ikatan molekul adsorbat dan biosorben dan Qmax =  29,762 mg/g.  Biosorben daun nanas terambobilisasi Ca-alginat memiliki potensial yang bagus untuk mengadsorpsi ion logam Cd+2.
Amobilisasi Biji Durian (Durio zibethinus) dalam Ca-Alginat sebagai biosorben zat warna Metilen Biru Intan Lestari
CHEMPUBLISH JOURNAL Vol. 4 No. 1 (2019): Chempublish Journal
Publisher : Universitas Jambi, Fakultas Sains dan Teknologi, Program Studi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.098 KB) | DOI: 10.22437/chp.v4i1.6900

Abstract

Telah dilakukan penyerapan zat warna metilen biru menggunakan biji durian teramobilisasi Ca-alginat. Dalam penelitian ini serbuk biji durian di amobilisasi dengan Ca-alginat dengan teknik penjebakan (entrapment). Biosorben yang diperoleh dikarakterisasi dengan intrumen XRF, FTIR dan SEM. Biosorben biji durian teramobilisasi Ca-alginat digunakan untuk penyerapan metilen biru dengan mempelajari pengaruh parameter adsorbsi seperti pH, waktu kontak, massa dan konsentrasi metilen biru. Dari hasil penyerapan diperoleh pH optimal yaitu pada pH 3, waktu kontak optimum 30 menit, massa biosorben 0,5 g dan konsentrasi zat warna optimal 3 ppm. Larutan HNO3 digunakan untuk regenerasi biosorben dan penyerapan metilen biru dapat dilakukan untuk 3 kali ulangan.
PENGARUH MODEL INKUIRI TERBIMBING DAN MOTIVASI TERHADAP KETERAMPILAN PROSES SAINS SISWA PADA MATERI KOLOID Ngatijo Ngatijo; Intan Lestari; Wayan Angga Dewi
Jurnal Pendidikan Kimia Universitas Riau Vol 7, No 1 (2022)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan (FKIP), Universitas Riau (UNRI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33578/jpk-unri.v7i1.7812

Abstract

Penelitian ini bertujuan untuk melihat pengaruh model inkuiri terbimbing dan motivasi terhadap keterampilan proses sains siswa pada materi koloid. Penelitian ini merupakan penelitian quasi eksperimen dengan menggunakan desain faktorial 2 x 2. Penelitian ini telah dilaksanakan pada kelas XI IPA SMAN 1 Bayung Lencir. Teknik pengambilan sampel adalah simple random sampling, sampel yang digunakan sebanyak dua kelas, satu kelas eksperimen dan satu kelas kontrol. Sumber data berasal dari angket motivasi, soal test keterampilan proses sains, dan lembar observasi. Teknik analisis data menggunakan analysis of variance (ANOVA dua jalur). Hasil penelitian menunjukkan, motivasi belajar siswa berpengaruh terhadap keterampilan proses sains siswa pada materi koloid, begitu juga dengan kelas eksperimen yang menggunakan model pembelajaran inkuiri terbimbing, hasil nilai test pada kelas eksperimen lebih tinggi dibandingkan dengan kelas kontrol. Hasil penilaian lembar observasi juga menunjukkan rata-rata pada kelas eksperimen lebih tinggi dibandingkan kelas kontrol. Kesimpulan yang didapat adalah terdapat pengaruh model inkuiri terbimbing dan motivasi terhadap keterampilan proses sains siswa pada materi koloid dan terdapat interaksi antara model inkuiri terbimbing dan motivasi terhadap keterampilan proses sains siswa pada materi koloid.
PENGELOLAAN ABU CANGKANG KELAPA SAWIT SEBAGAI BAHAN PEMBANGUN DETERJEN RAMAH LINGKUNGAN DI DESA KUAMANG KUNING KABUPATEN BUNGO Intan Lestari; Diah Riski Gusti; Nindita Clourisa Amaris Susanto; Edwin Permana; Indra Lasmana Tarigan
LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 5 No 1 (2021)
Publisher : Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Andalas Kampus Limau Manis - Padang, Sumatera Barat Indonesia-25163

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/logista.5.1.219-226.2021

Abstract

Provinsi Jambi merupakan salah satu Provinsi penyumbang hasil perkebuan kelapa sawit dengan luas areal lahan mencapai 10 – 15 ton/ha/tahun ha dan mampu memproduksi 0.55% berupa limbang cangkang kelapa sawit dan tempurung kelapa sawit. Abu cangkang kelapa sawit mengandung banyak mineral seperti SiO2 58,02%; Al2O3 8,7%; CaO 12,65%; Fe2O3 2,6%; Na2O 0,41%; MgO 4,32%; K2O 0.72%; H2O 1,97%; serta hilang pijar 8.59%, unsur K 7,5%; Ca 1,5%; Cl 1,3%; CO3 1,9%; Mg 2,8%; Na 1,1%, N 0.05%; PO4 0,9% dan SiO2 61%. Tujuan pengabdian ini memberikan pelatihan dan keterampilan kepada masyarakat Desa Kuamang Kuning dalam memanfaatkan abu cangkang kelapa sawit menjadi material zeolite 4A sebagai bahan pembangun deterjen ramah lingkungan, yang mampu menurunkan tingkat kesadahan air akibat pencemaran limbah rumah tangga. Kegiatan dilakukan dengan memberikan penyuluhan tentang potensi limbah abu cangkang kelapa sawit, pengolahnnya sebagai bahan pembangun deterjen berbasis zeolite 4A, dan melakukan pelatihan. Pelatihan ini memberikan peningkatan kompetensi bagi masyarakat, sebanyak 90% masyarakat peserta pelatihan yang hadir merasakan manfaat program ini untuk menambah pengatahuan dan wawasan, 100% merasakan ada pengaruh peningkatan pengetahuan tentang deterjen sintesis dan bahayanya terhadap lingkungan, serta pengetahuan tentang potensi limbah abu cangkang kelapa sawit dan sekitar 80% masyarakat berminat untuk mengelola abu cangkan kelapa sawit sebagai salah satu alternatif peluang usaha, serta 75% berniat untuk meneruskan program ini. Kata kunci: Sawit, Cangkang Kelapa Sawit, Zeolit 4A, Pembangun Deterjen ABSTRACT Jambi Province is one of the contributing provinces to oil palm plantation products with a land area of ​​10-15 tons/ha/years and is capable of producing 0.55% in the form of palm oil shells and oil palm shells. Oil palm shell ash contains many minerals such as SiO2 58.02%; Al2O3 8.7%; CaO 12.65%; Fe2O3 2,6%; Na2O 0.41%; MgO 4.32%; K2O 0.72%; H2O 1.97%; and loss of glow 8.59%, K elements 7.5%; Ca 1.5%; Cl 1.3%; CO3 1.9%; Mg 2.8%; Na 1.1%, N 0.05%; PO4 0.9% and SiO2 61%. This program aims to provide training and skills to the people of Kuamang Kuning Village in utilizing oil palm shell ash into zeolite 4A material as a building block for environmentally friendly detergents, which can reduce water hardness levels due to household waste pollution. The activity was carried out by providing counseling on the potential for oil palm shell ash waste, processing it as a building block for zeolite 4A-based detergents, and conducting training. This training provides increased competence for the community, as many as 90% of the training participants who attended felt the benefits of this program to increase knowledge and insight, 100% felt that there was an effect of increasing knowledge about synthetic detergents and their dangers to the environment, as well as knowledge about the potential waste of oil palm shell ash and about 80% of the community are interested in managing the ash of the oil palm kernel as an alternative business opportunity, and 75% intend to continue this program. Keywords: Palm Oil, Palm Shell, Zeolite 4A, Detergent Builder
PENGGUNAAN KARBON AKTIF MAGNETIT-Fe3O4 SEBAGAI PENYERAP ZAT WARNA REMAZOL YELLOW Intan Lestari; Eko Prasetyo; Diah Riski Gusti
Journal BiGME Vol. 1 No. 1 (2021): BiGME, Maret 2021
Publisher : PUI BiGME Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/bigme.v1i1.12311

Abstract

Karbon aktif magnetite Fe3O4 telah digunakan sebagai adsorben penyerap zat warna remazol yellow. Karbon aktif dibuat dari cangkang kelapa sawit dan dikompsoitkan dengan magnetite Fe3O4 dengan metode kopresipitasi. Adsorben digunakan untuk penyerap zat warna remazol yellow dengan mempelajari beberapa parameter penyerapan yaitu pengaruh pH, waktu kontak dan konsentrasi larutan Remazol Yellow. pH penyerapan diperoleh pada kondisi pH 2 dengan efisiensi penyerapan 84,613%, waktu kontak optimum pada waktu 45 menit dengan efisiensi penyerapan 71,79% dan dan konsentrasi optimum pada konsentrasi 45 mg/L dengan efisiensi penyerapan adalah 80,82%
Co-Authors Agnes Vionita Yohana Ahmad Sazali Anisa Anisa Anisa Lastri Ardian Salsa Rusmana Arif Nurrahman Armitha Dea Pradina Betri Yanda Damris Muhammad Desi Kurniawati Diah Mastutik Diah Riski Gusti Dika Zamri Yanni Dika Zamri Yanni Edwin Permana Elisma Elisma Faizar Farid Faizar Farid H Harmiwati Hamdan Maruli Siregar Hanum Eko Hapsari Havizur Rahman Havizur Rahman I Ketut Suada Indra Lasmana Tarigan Kasman, Monik Lenny Marlinda Leny Marlinda M Ikrar Lagowa M. Rusdi Maemonah, Maemonah Maharani Martina Asti Rahayu Mia Aina Mia Prajuwita Mia Prajuwita Mia Prajuwita Moh Nabawi Moh Nabawi Mounir El Achaby Muhamad Reza Prasetio Muhammad Haris Effendi Hasibuan Najlia Dinnisa Syawabilla Nelson Nelson Nelson Neviaty P Zamani Ngatijo Ngatijo Ngatijo Nindita Clourisa Amaris Susanto Putri Maya Sari Putri Maya Sari Rahma Aini Sapitri Ratih Dyah Puspitasari Rico Gewana Resdy Maulana Salmariza Sy Samsidar Samsidar Silfia Devi Eka Putri Putri Syafira Tiaradipa Tri Siswanto Uce Lestari Vikri Hidayat Wayan Angga Dewi Widy Prasetyo Yonanda Ramadhanty Yuliana Walidatur Rofiah