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All Journal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Inovasi Teknik Kimia Jurnal Teknik Kimia USU
Meka Saima Perdani
Universitas Singaperbangsa Karawang
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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SINTESIS MEMBRAN AKRILONITRIL BUTADIENA STIRENA TERMODIFIKASI FILLER SULFONASI GRAFENA OKSIDA TEREDUKSI DAN CERIUM OKSIDA Riska Listiarini Iskandar; Sarah Dampang; Muhammad Fahmi Hakim; Meka Saima Perdani; Firgi Siswantito; Eri Widianto; Najmudin Fauji
Jurnal Inovasi Teknik Kimia Vol. 10 No. 4 (2025): October| INTEKA - Jurnal Inovasi Teknik Kimia
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v10i4.13450

Abstract

The utilization of Acrylonitrile Butadiene Styrene (ABS) polymer as an alternative membrane for Direct Methanol Fuel Cell (DMFC) applications has been investigated. This study aims to evaluate the effect of sulfonation temperature on the performance of ABS membranes modified with reduced graphene oxide/cerium oxide (s-rGO/CeO₂). The membranes were synthesized via sulfonation at 65 °C, 75 °C, and 85 °C, with a filler composition of 3% v/v. The results indicate that the addition of filler significantly increases the Ion Exchange Capacity (IEC), with the highest value of 0.375 meq/g obtained at a sulfonation temperature of 85 °C, while methanol permeability was optimally reduced at 65 °C (1.26684 × 10⁻⁷ cm²/s). FTIR analysis confirms successful sulfonation, as evidenced by the appearance of sulfonate (S=O) absorption peaks at 1054 cm⁻¹ and carbonyl (C=O) peaks at 1734 cm⁻¹, indicating interactions between the filler and the ABS matrix. The increased polarity and hydrophilicity of the membrane resulting from filler incorporation demonstrate that filler-modified ABS membranes have strong potential as alternative membranes for DMFC applications.
Efektivitas Katalis CaO/SiO2 dari Limbah Sekam Padi dan Cangkang Telur dengan Variabel Waktu Reaksi untuk Sintesis Biodiesel Christin Octaviani Sitanggang; Meka Saima Perdani; Hilman Imadul Umam; Amalia Dian Fadilla; Eti Ayu Nurhana
Jurnal Teknik Kimia USU Vol. 15 No. 1 (2026): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v15i1.22313

Abstract

This research focusses on the synthesis of biodiesel as an altenative fuel to replace diesel oil which can be produced from vegetable oil or animal fat as renewable dan sustainable fuel. This study was conducted to determine the effect of stirring time in the manufacture of biodiesel on the effectiveness of the CaO/SiO2 catalyst from egg shell waste dan rice husks in the transesterification process. The control variables in this study were raw materials taken from rice husk waste dan chicken egg shell waste, and the mole ratio of used cooking oil: methanol used was 9:1. The variation of stirring time used was 30 minutes, 60 minutes, 90 minutes, 120 minutes, 150 minutes with a stirring speed of 450 rpm at 65ºC. The results showed that the optimal time in this study was 150 minutes with a biodiesel yield of 63.64%.
The Effect of Linear Alkylbenzene Sulfonate on Corrosivity of Vehicle Shampoo from Overproduction Softener Production in Industry Raisa Syifa Alzena Yulianto; Cintiya Septa Hasannah; Meka Saima Perdani; Farradina Choira Suci
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 9, No 2 (2024): EDISI SEPTEMBER 2024
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v9i2.5915

Abstract

Indonesia is one of the countries with a significant number of laundry services, which has led to the emergence of numerous companies engaged in the production of high-quality softener products. This extensive softener production has resulted in a considerable surplus of the product, which can potentially harm the environment. This study aimed to process the excess products produced by the softener industry into vehicle shampoo and LAS (Linear Alkylbenzene Sulfonate), the main component of vehicle shampoo. We will achieve this through trial-and-error mixing methods and optimal variations. We aim to create products with sales value that the public can use to wash vehicles at a more economical price while maintaining quality comparable to commercial products. The optimal variation results obtained from this research were 40 ml of fragrance, 50 ml of Sodium Laureth Sulfate (SLES) Texapon, and 40 g of LAS, with test results of pH 7.92 and density 1.025 g.cm-3. The viscosity was found to be 2.41 Pa.s, the foaming power was 91.67%, and the corrosivity was 0.09291 mm/year. These results showed that the vehicle shampoo meets corrosion resistance standards. 
Co-Authors Amalia Dian Fadilla Christin Octaviani Sitanggang Cintiya Septa Hasannah Eri Widianto Eti Ayu Nurhana Farradina Choira Suci Firgi Siswantito Hilman Imadul Umam Muhammad Fahmi Hakim Najmudin Fauji Raisa Syifa Alzena Yulianto Riska Listiarini Iskandar Sarah Dampang