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All Journal SAINSMAT Chemica: Jurnal Ilmiah Kimia dan Pendidikan Kimia Fullerene Journal of Chemistry Seminar Nasional Pengabdian Kepada Masyarakat SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam Indonesian Journal of Fundamental Sciences Seminar Nasional Hasil Penelitian LP2M UNM Chemedu: Jurnal Ilmiah Pendidikan Kimia SMART: Jurnal Pengabdian Kepada Masyarakat
Diana Eka Pratiwi
Universitas Negeri Makassar
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Microstructure Investigations of Natural Clay From Pattallassang District, Takalar Regency, South Sulawesi Province, Indonesia Abd Rahman; Suriati Eka Putri; Diana Eka Pratiwi; Satria Putra Jaya
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol 12, No 1 (2023): Maret
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/sainsmat121444522023

Abstract

The study aimed to investigate the microstructure of natural clay from Pattallassang District, Takalar Regency, South Sulawesi Province. The clay was characterized using X-ray diffractometer (XRD), surface area analyzer (SAA), and scanning electron microscope (SEM). The XRD analysis showed that the main mineral composition of the clay was kaolinite, quartz, hematite, geothite, magnetite, and anatase phases. The SAA using BET analysis shows the large surface area of 59.26 m2/g and BJH analysis for pore distribution of 32.77 nm. SEM observations revealed that the clay consists of plate-like kaolinite particles arranged randomly. The results indicate that the natural clay from Pattallassang District has good potential for use in various industrial applications due to its high kaolinite content and favorable microstructure.Keywords: kaolinite, microstructure, mineral, clay.
Studi Adsorpsi Logam Fe (III) Menggunakan Koposit Kitin Silika Sekam Padi Muftihatu Rahma; Hasri Hasri; Diana Eka Pratiwi
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol 12, No 2 (2023): September
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/sainsmat122439262023

Abstract

Penelitian ini bertujuan untuk mengetahui pH optimum dan kapasitas adsorpsi logam Fe(III) menggunakan komposit Kitin-silika sekam padi. Metode yang digunakan meliputi pembuatan natrium silikat, pembuatan komposit kitin-silika, penentuan pH optimum dan kapasitas adsorpsi terhadap logam Fe(III). Pembuatan natrium silikat dilakukan dengan pelarutan menggunakan NaOH. Komposit kitin-silika sekam padi dibuat dengan mereaksikan larutan natrium silikat dengan kitin. Karakterisasi komposit kitin-silika meliputi analisis gugus fungsi menggunakan FTIR dan analisis morfologi menggunakan SEM. Proses adsorpsi dilakukan dengan variasi pH (2-6), variasi konsentrasi (50-150 ppm). Hasil penelitian menunjukkan bahwa pH optimum pada adsorpsi logam Fe(III) adalah 4 dengan daya adsorpsi sebesar 91,42%. Kapasitas adsorpsi logam Fe(III) dengan konsentrasi 50, 80, 100 dan 150 ppm berturut-turut adalah 31,49 mg/g; 69,69mg/g; 89,83 mg/g dan 138,57 mg/g. Adsorpsi logam Fe(III) lebih sesuai untuk model isotherm Langmuir dibandingkan dengan Freundlich dengan nilai R2 = 0,9414.Kata kunci : sekam padi, adsorpsi, kitin-silika, isotherm dan logam berat
The Effect Of Acid Treatment On The Characteristics Of Modernite Zeolite Sumiati Side; Suriati Eka Putri; Diana Eka Pratiwi; Aulia Rahma; Abd. Rahman
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol 12, No 2 (2023): September
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/sainsmat122511932023

Abstract

This work investigated the use of acid treatment on the characteristics of zeolite mineral. The effects of treating zeolite with various acid solutions hydrochloric acid (HCl) and sulfuric acid (H2SO4) were measured using x-ray fluorescence (XRF), x-ray diffraction (XRD), and scanning electron microscope (SEM). The results showed an increase in the percentage of SiO2 and Al2O3 after zeolite activation, and also a decrease in the amount of impurities. The crystalline phase of the zeolite was carried out using XRD analysis, indicating the type of zeolite used is modernite. The SiO2 phase in the sample is quartz, and the Al2O3 phase is corundum. The average crystal size decreased after activation, from 14.23 nm to 6.85 nm for HCl and 5.42 nm for H2SO4. Futhermore, the surface morphology of all zeolite samples has a form of irregular spherical surface, and the surface size of the particles after activation shows a smaller particle shape. The results of this study are expected to become recommendations for further research related to natural zeolite pretreatment as a catalyst support.
Co-Authors Abd Rahman Abd. Rahman Abdul Rahman Ahmad Fudhail  Majid Aulia Rahma Auliya Marwah Hijriyah Bahriah Bahriah Fachry Abda El Rahman Fahruddin Ilham Nur Gusma Harfiana Abbas Hasri Hasri Muftihatu Rahma Muhammad Akbar Muhammad Danial Muhammad Syahrir Munawwarah Munawwarah Nita Magfirah Ilyas Pince Salempa Rachmat Triandi Tjahjanto Satria Putra Jaya Sumiati Side Suriati Eka Putri Suriati Eka Putri