Article Per Year (5 Year)
p-Index From 2021 - 2026
3.133
P-Index
This Author published in this journals
All Journal SAINSMAT Chemica: Jurnal Ilmiah Kimia dan Pendidikan Kimia Fullerene Journal of Chemistry Seminar Nasional Pengabdian Kepada Masyarakat Indonesian Journal of Fundamental Sciences Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences Seminar Nasional Hasil Penelitian LP2M UNM Chemedu: Jurnal Ilmiah Pendidikan Kimia SMART: Jurnal Pengabdian Kepada Masyarakat Hayyan Journal SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam
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 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

Published : 23 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 23 Documents
Search

 1   2   3 
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): Volume 12 Nomor 2 (September 2023)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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

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. Furthermore, 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.
Studi Adsorpsi Logam Fe (III) Menggunakan Komposit Kitin Silika Sekam Padi Muftihatu Rahma; Hasri; Diana Eka Pratiwi
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 12 No. 2 (2023): Volume 12 Nomor 2 (September 2023)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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

Abstract

This study aims to determine the optimum pH and adsorption capacity of Fe(III) metal adsorption using chitin- silica composite rice husk. The research phase includes the manufacture of sodium silicate, manufacture of chitin- silica composites, determination of optimum pH and adsorption capacity of Fe(III) metals. Preparation of sodium silicate is done by dissolving using NaOH. Chitinsilica rice husk composites were prepared by reacting sodium silicate solution with chitin. The characterization of chitin-silica composites included functional group analysis using FTIR and morphological analysis using SEM. The adsorption process was carried out with variations in pH (2-6), variations in concentration (50-150 ppm). The results showed that the optimum pH for the adsorption of Fe(III) metals was 4 with the adsorption power 91,42%. The adsorption capacity of Fe(III) metal with concentrations of 50, 80, 100 and 150 ppm were 31.49 mg/g, respectively; 69.69mg/g; 89.83 mg/g and 138.57 mg/g. The adsorption of Fe(III) metal is more suitable for the Langmuir isotherm model compared to Freundlich with a value of R2 = 0.9414.
SINTESIS KOMPOSIT KITIN-SILIKA (KI-SIL) DAN APLIKASINYA SEBAGAI ADSORBEN LOGAM Fe (III) DAN Cr (III) Hasri Hasri; Diana Eka Pratiwi; Muftihatu Rahma; Satria Putra Jaya Negara; Marlina Ummas Genisa; Haryanti Putri Rizal
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 14 No. 01 (2025): Volume 14 Nomor 1 (Maret 2025)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/45m24r41

Abstract

Rice husk waste can be utilized as a source of silica with a silica content of 86.90-97.30 %, which has potential as a silica-based material. Similarly, chitin sources are abundant in crustacean shells (crabs, shrimps, lobsters etc.), the combination of chitin-silica (Ki-Sil) as a composite is very interesting to study. So this research aims to synthesize Ki-Sil composite and its application as adsorbent of Fe(III) and Cr(III) metal ions. At first, the extraction of rice husk silica was carried out and then the synthesis of Ki-Sil composites. The obtained composite was optimized for pH with pH variation (2-6), adsorption capacity with concentration variation (50-150 ppm) and adsorption selectivity test of both metal ions with ratio (0.25:0.75; 0.75:0.25 and 1:1). Analysis of Ki-Sil functional groups using FTIR shows that the synthesis has been successful with wave numbers that match the standard and morphological analysis using SEM which shows the composite material is a porous material. The results obtained optimum pH 4 for adsorption of both target metals. The adsorption capacity of Fe(III) metal was 31.49 mg/g; 69.69mg/g; 89.83 mg/g and 138.57 mg/g, respectively. And the adsorption capacities of Cr(III) metal were 37.80 mg/g; 70.86 mg/g; 89.98 mg/g and 138.84 mg/g, respectively. The selectivity test results showed that Ki-Sil adsorbed Fe(III) metal by 0.9820 mmol and Cr(III) metal by 0.9949 mmol. It is concluded that the Ki-Sil composite is more selective in adsorbing Cr(III) metal.
Co-Authors Abd Rahman Abd. Rahman Abdul Rahman Ahmad Fudhail  Majid Andi Eka Kartika Aulia Rahma Auliya Marwah Hijriyah Bahriah Bahriah Fachry Abda El Rahman Fahruddin Ilham Nur Gusma Harfiana Abbas Haryanti Putri Rizal Hasri Hasri Hasri Marlina Ummas Genisa Muftihatu Rahma Muhammad Akbar Muhammad Danial Muhammad Ilham Wardhana Haeruddin Muhammad Syahrir Munawwarah Munawwarah Nita Magfirah Ilyas Nur Afni Pince Salempa Rachmat Triandi Tjahjanto Satria Putra Jaya Satria Putra Jaya Satria Putra Jaya Negara Sumiati Side Suriati Eka Putri Suriati Eka Putri