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All Journal EKSAKTA: Journal of Sciences and Data Analysis IJCER (International Journal of Chemistry Education Research) Walisongo Journal of Chemistry
Muhammad Miqdam Musawwa
Chemistry Department, Universitas Islam Indonesia, Yogyakarta, 55581, Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Environmental Science Materials Science & Nanotechnology

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Influence of Mixing Time and Mass Ratio of Precursor on Preparation of Magnetic Biochar Derived from Cassava Peel (Manihot utilissima) Argo Khoirul Anas; Rosyida Mutiara; Muhammad Miqdam Musawwa; Agus Taftazani
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 3, ISSUE 1, February 2022
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/EKSAKTA.vol3.iss1.art2

Abstract

The use of magnetic biochar to overcome aquatic environmental problem has received interesting attention in recent years. Several methods in preparing magnetic biochar have been applied including impregnation-pyrolysis, chemical co-precipitation, and reductive co-precipitation. In case of co-precipitation method, the obtained magnetic biochar is relatively stable and easy to handle, that make it important to study. The purpose of this work is to study the influence of mixing time and mass ratio of precursor on preparation of magnetic biochar using this method. The cassava peel (Manihot utilissima) was used as feedstock for biochar preparation. The magnetic biochar which is characterised using FTIR, XRD, and SEM-EDX analysis was successfully prepared and applied as an adsorbent for MB. The optimum mixing time of precursor was identified at 60 minutes and maximum mass ratio was achieved at 1:1 of biochar:Fe3O4. Importantly, it can be known that MB adsorption successfully improved with the increase of mixing time, up to the optimum adsorption capacity at 60 minutes of precursor mixing time. Furthermore, at the mass ratio of 1:1 magnetic biochar displayed the highest adsorption capacity. The parameter in preparation method developed in this work can be used as an additional information in the magnetic biochar preparation
Preparation of Low-cost Adsorbent Based on Mango Leaf (Mangefira Indica L) Biomass for Methylene Blue (MB) Adsorption Muhammad Miqdam Musawwa; Annisa Fajriati; Imam Sahroni; Ahmad Said
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 3, ISSUE 1, February 2022
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/EKSAKTA.vol3.iss1.art3

Abstract

Preparation of leaf mango (Mangefira Indica L)-based adsorbent and its evaluation to reduce methylene blue (MB) concentration have been conducted. Two materials: ads-pristine and ads-CTAB which are referred as native leaf mango adsorbent and CTAB modified leaf mango have been prepared in this study. Cetyltrimethylammonium bromide (CTAB) is cationic surfactant usually used to modify and increase the surface area of the adsorbent for a specific purpose. The materials obtained were characterized by the Fourier Transform Infra-Red (FTIR) and the Scanning Electron Microscope (SEM) with general result, there were detected functional groups indicated the active sites on the adsorbent such as -OH, C-O, C=C. Ads-CTAB was specifically characterized with appearing of C-H aliphatic as the tail of CTAB molecule. SEM images show that both materials have roughness surface and irregular cavities. Additional of CTAB on the surface led the more regularly surface. The optimum pH was in basic region (8), while the optimum adsorbent mass and MB concentration are not clearly found due to the chart still increasing. However, the highest qe was found by 0.01 g of ads-pristine and ads-CTAB with the value 967.25 and 950.75 mg g-1 respectively. As the further evaluation, with the 0.5 adsorbent mass it may be applicated on the MB concentration at around 4000 mg L-1. Kinetics model of this adsorption was followed pseudo second order reactions.
Analysis of Understanding of First-Year Chemistry Education Students on Molecular Forces Topic Muhammad Miqdam Musawwa; Beta Wulan Febriana; Widinda Normalia Arlianty
International Journal of Chemistry Education Research VOLUME 2 ISSUE 2, AUGUST 2018
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol2.iss2.art3

Abstract

This research aims to investigate the concept understanding of first year students of study program chemistry education, faculty of mathematics and natural sciences, Universitas Islam Indonesia Yogyakarta, Indonesia. The sample used in this study was 49 students. Data collection instruments used are multiple choice questions.  The results of the study show that there are still many students who have difficulty in determining the example of the force between molecules that occurs in several molecules. Students also have difficulty in determining the molecuar forces between molecules from the example case given. The level of student understanding in the material concept of moleculecular forces is classified intermediate.
Synthesis of Zeolite Based Material With Aluminum Sources from Used Beverage Cans for Hard Water Desalination Muhammad Miqdam Musawwa; Nova Restu Nur Ardiyanto; Agil Lestari; Ahmad Khoiruddin Yusuf; Mochamad Solehudin
Walisongo Journal of Chemistry Vol 5, No 1 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i1.9172

Abstract

Hard water contains high mineral content, especially calcium (Ca) and magnesium (Mg). Hard water can cause health problems and damage to household appliances within a certain period of time. In this study, zeolite-based materials have been synthesized as adsorbent materials to reduce the concentration of Ca2+ and Mg2+ in the hard water obtained from Brondong district of Lamongan, East Java. Zeolite based material was synthesized with aluminum sources derived from beverage cans and silica from silica gel.  In this study, zeolite was prepared by microwave (ZM) and without the microwave method (ZNM). The amount of ZM was 10.8121 grams, or 99.1% of the yield, and ZNM was 10.5387 grams or 99.15% of the yield. The FTIR results indicate some characteristic peaks of T-O and T-O-T bonds (T = Si/Al) at 460, 670, 726, and 980–1100 cm1. The diffractogram show that ZNM is still dominated by silica-based materials, while ZM although it still shows dominant amorphous silica peaks, some characteristic zeolite peaks also appear. The SEM results show the shapes of agglomerated tiny particles for both materials. In this study, the synthesized zeolite can reduce the concentration of Ca2+ ions by 84–97% and Mg2+ ions by 23-51%. The optimal time obtained in this study was 30 minutes, while the optimal mass obtained was 0.5 grams for all materials. 
Project-Based Learning: Chemistry Students’ Role in Fostering the Society in Recycling the Waste Cooking Oil Imam Sahroni; Lutfia Isna Ardhayanti; Chancard Basumerda; Muhammad Miqdam Musawwa; Randy Ramadani
International Journal of Chemistry Education Research VOLUME 6, ISSUE 2, OCTOBER 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss2.art2

Abstract

Project-based learning has been used globally as one of the effective methods to evaluate student performance in achieving the learning outcome of the chemistry subject. It became one of the priorities in implementing the new policy, Merdeka Belajar-Kampus Merdeka (MB-KM) from The Ministry of Education, Culture, Research and Technology in Indonesia. The student at the university level can join a project-based learning program conducted outside the classroom and supervised by the Project supervisor. We proposed the project-based learning program to maximize the chemistry students’ role in solving the waste cooking oil in society. The purpose of this program was to introduce the chemistry student to the real problem in the society and allow the dissemination of their innovative idea. The information prevailed from observing the activity, interviewing the students, and evaluating the student's performance. This project-based learning presented that students accomplish the information and knowledge they gain from the classroom into actions to solve the real problem in society.  Keywords: project-based learning, Merdeka Belajar-Kampus Merdeka (MB-KM), waste cooking oil, chemistry students’ role
Co-Authors Agil Lestari Agus Taftazani Ahmad Khoiruddin Yusuf Ahmad Said Annisa Fajriati Argo Khoirul Anas Beta Wulan Febriana Chancard Basumerda Imam Sahroni Lutfia Isna Ardhayanti Mochamad Solehudin Nova Restu Nur Ardiyanto Randy Ramadani Rosyida Mutiara Widinda Normalia Arlianty