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All Journal EKSAKTA: Journal of Sciences and Data Analysis Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan JURNAL KIMIA SAINS DAN APLIKASI Aceh International Journal of Science and Technology

Muhamad Allan Serunting

Chemistry Department, Faculty Of Mathematics And Natural Sciences, Institut Teknologi Sumatera, Lampung

Author-ID : 2912628

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Materials Science & Nanotechnology

Published : 4 Documents Claim Missing Document

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Articles

Preliminary Study of Photocatalytic Degradation of Methylene Blue Dye using Magnetic Alginate/Fe3O4 (Alg/Fe3O4) Nanocomposites Ganjar Fadillah; Muhamad Allan Serunting
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 19, ISSUE 1, February 2019
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/eksakta.vol19.iss1.art3

The Magnetic compound, Fe3O4, is one of the compounds that is easily hydrolyzed and oxidized. A coating method was presented in this study to prevent the process. The modifications of Fe3O4 were carried out by supporting alginate as natural polymers on the surface of Fe3O4. Preparation of magnetic alginate/Fe3O4 (Alg/Fe3O4) nanocomposite has been successfully synthesized. Alg/Fe3O4 material was synthesized using the coprecipitation method with Fe2+; Fe3+ (with molar ratio 1:2) and alginate 1% as precursors. Synthesized Alg/Fe3O4 nanoparticles were characterized by Fourier Transform Infrared Spectroscopy (FTIR), DelsaTM Nano C Particle Analyzer, Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), and Energy Dispersive Spectroscopy (EDS). The Alg/Fe3O4 has an average diameter of 13.70 nm. Photodegradation test of synthetic methylene blue (MB) dye was found at pH 5.0 and irradiation time under UV245 for 60 minutes. The degradation results showed that the percentage of MB dye removal reached more than 90%.

Synthesis of Silver Nanoparticles with Reductant of Java Long Pepper Leaf Extract (Piper Retrofractum Vahl) and Its Application as a Mercury Detector Muhamad Allan Serunting; Prio Santoso; Indah Puspita Sari; Riyanto Widodo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 1 (2021): March 2021
Publisher : Universitas Diponegoro

The synthesis of silver nanoparticles using the green chemistry concept utilizing Java long pepper leaf extract as a reducing agent has been successful. Silver nanoparticles were synthesized under optimum 1 mM silver nitrate concentration, 250 μL Java long pepper leaf extract, and 30 minutes under sunlight radiation. The silver nanoparticles formed can be confirmed by the change in the color of the solution from colorless to brownish red, indicating a reduction of Ag+ to Ag0. The Uv-vis spectrum showed a peak Surface Plasmon Resonance (SPR) at 441 nm. The FTIR spectrum showed that functional groups' vibrations in the Java Chili Leaf extract confirm that the phenol, alkaloid, and flavonoid compounds present in the extract act as reducing agents. TEM images show spherical silver nanoparticles with an average diameter of 17.65 nm. The potential of silver nanoparticles to detect Hg (II) metal is evidenced by a decrease in the color intensity of the silver nanoparticle solution along with the increasing concentration of Hg (II), which reacts back-oxidizing Ag0 to Ag+. The value of the correlation coefficient of the linear equation is 0.9807.

Adsorption of Textile Dye by Activated Carbon Made from Rice Straw and Oil Palm Midrib Mochamad Lutfi Firdaus; Noli Krisnanto; Wiwit Alwi; Ronald Muhammad; Muhamad Allan Serunting
Aceh International Journal of Science and Technology Vol 6, No 1 (2017): April 2017
Publisher : Graduate Program of Syiah Kuala University

Synthetic dye wastewater from textile industries is characterized by strong color, high temperature, variable pH and high chemical oxygen demand (COD). The strong color of wastewater affects aesthetic and water transparency of water bodies. The metabolites could be toxic to aquatic biota and posing a potential hazard to human health. Eventually, it will cause severe environmental problems. One of method that has advantages in term of simplicity to remove synthetic dyes is adsorption. Environmentally benign and low-cost materials to make adsorbent are biomass-based materials. Two different biomaterial wastes of rice straw and oil palm midrib were used in this study to develop activated carbon adsorbents. These adsorbents were applied for the removal of Naphtol AS-G dye in aqueous solution. The effects of solution pH, adsorbents masses and contact time on dye adsorption were evaluated based on batch experiments. Removal of dye can be achieved within 60 minutes at a wide pH range starting from 4 to 8. At lower pH, synthetic dye removal was decreasing probably due to protonation of adsorbent’s active sites. The adsorption isotherms based on Langmuir and Freundlich models were analyzed. The isotherms analysis indicated that the adsorption by rice straw and oil palm can be represented by Langmuir and Freundlich isotherm model, respectively. Adsorption isotherms of Naphtol AS-G onto activated carbon are favorable with high adsorption capacity for both biomaterials. The mechanisms of color removal by activated carbon involved chemical and physical adsorption, in accordance with both the Langmuir and Freundlich models. The calculated maximum dye adsorption capacities onto rice straw and oil palm midrib activated carbon were 55.86 and 69.44 mg/g, respectively. Adsorption using biomass-based activated carbon offers a good technique for textile wastewater treatment as it could remove up to 95% of the color intensity besides reducing other pollutants such as COD, nitrate and phosphate.

Biosynthesis of ZnO Nanoparticles Mediated by Crescentia cujete L Leaves Extract and The Photocatalytic Activities Towards Methylene Blue Demi Dama Yanti; Sintia Aprilia; Bambang Ariwahjoedi; Muhamad Allan Serunting; Hawa Purnama Celala Ary Cane
Jurnal Kimia Sains dan Aplikasi Vol 26, No 12 (2023): Volume 26 Issue 12 Year 2023
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.26.12.457-465

ZnO nanoparticles were synthesized using the precipitation method and using water extract of Crescentia cujete L leaves as a capping agent. ZnO nanoparticles with a hexagonal wurtzite structure were successfully synthesized with low production cost and environmentally friendly. According to XRD characterization, there is no impurity peak, indicating the ZnO nanoparticles have high purity and crystallinity. SEM images show the morphology of ZnO nanoparticles with semi-spherical shapes and an average size of 32.49 nm. The photocatalytic activity of ZnO nanoparticles was evaluated using a UV A lamp as a source of photonic energy toward methylene blue dye. Various irradiation times were carried out from 0, 10, 20, 30, 40, to 50 minutes, and a UV spectrophotometer was used to detect the concentration of methylene blue remains in collected samples. Increasing the irradiation times leads to increasing the photocatalytic activity of ZnO nanoparticles. At 50 minutes of exposure to a UV A lamp, the degradation percentage of methylene blue dye is 36.37%.

Co-Authors Bambang Ariwahjoedi Demi Dama Yanti Ganjar Fadillah Hawa Purnama Celala Ary Cane Indah Puspita Sari Mochamad Lutfi Firdaus Noli Krisnanto Prio Santoso Riyanto Widodo Ronald Muhammad Sintia Aprilia Wiwit Alwi

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