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MASALIQ: Jurnal Pendidikan dan Sains
Published by Lembaga Yasin Alsys
ISSN : 28091051     EISSN : 28088115     DOI : -
Core Subject : Religion, Education, Social,
Religion Education Social Sciences
MASALIQ: Jurnal Pendidikan dan Sains was published by Lembaga Yasin alSys which was published six times a year, January, March, May, July, September and November with a minimum of 5 articles. The journal aims to provide a forum for scholarly understanding of the field of education and plays an important role in promoting the process that accumulated knowledge, values, and skills.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 607 Documents
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Pengaruh Massa Sodium Dodecyl Sulfate terhadap Nilai Bandgap Semikonduktor TiO₂-ZnO Adha, Valen Febri; Ningsih, Sherly Kasuma Warda; Hardeli, Hardeli
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6696

Abstract

Modification of the TiO₂-ZnO semiconductor through the addition of Sodium Dodecyl Sulfate (SDS) has been carried out to reduce the bandgap energy using the sol-gel method. The SDS mass variations used in the synthesis process were 0.015, 0.020, 0.025, 0.030, and 0.035 grams. The synthesized samples were characterized using UV-Vis Diffuse Reflectance Spectroscopy (DRS) to determine the bandgap values. The characterization results showed that the addition of 0.025 grams of SDS produced the lowest bandgap value, measured at 3.16 eV. This reduction in bandgap is attributed to changes in the material's physical and chemical surface structure, influenced by the interaction between the surfactant and the TiO₂-ZnO surface, microstructural alterations, and modifications in crystallinity. However, at higher SDS concentrations (≥0.025 grams), the bandgap value increased again, due to particle agglomeration and hindered electron transfer. These findings indicate that the addition of SDS surfactant within an optimal range can enhance the optical properties of semiconductor materials, while excessive addition may degrade performance due to undesirable morphological changes.
Praktikalitas dan Efektivitas Media Augmented Reality Materi Pergeseran Kesetimbangan Kimia terhadap Hasil Belajar Peserta Didik Priani, Eksa; Guspatni, Guspatni; Yuhelman, Nofri
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6716

Abstract

Augmented Reality (AR)-based learning media have demonstrated potential in enhancing the understanding of abstract chemical concepts, such as chemical equilibrium. This study aims to evaluate the practicality and effectiveness of AR-integrated learning media previously validated in an earlier study. A pre-experimental method with a one-group pretest–posttest design was employed. Practicality testing involved 9 students and 2 chemistry teachers at SMA Negeri 1 Tiumang, while effectiveness was assessed based on the improvement of student learning outcomes using N-Gain analysis and t-test. The sample was selected through purposive sampling, and data collection was conducted at SMA Negeri 1 Koto Baru. The results indicate that the media were rated as highly practical by both teachers (86%) and students (81%), with an N-Gain score of 0.49, classified as moderate. The t-test revealed a significant difference between pretest and posttest scores. Thus, the AR learning media are considered practical and effective, contributing positively to chemistry instruction, particularly in the topic of equilibrium shift.
Karakterisasi Gelatin Halal dari Kulit Kepala Ikan Lele Dumbo (Clarias gariepinus) sesuai SNI 06-3735-1995 Hanifa, Putri; Aini, Syamsi
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6727

Abstract

The growing demand for environmentally friendly and halal-compliant gelatin in Indonesia necessitates the exploration of alternative sources based on organic waste. One such potential lies in the underutilized waste of the catfish (Clarias gariepinus) head skin. This study aims to synthesize and characterize halal gelatin derived from catfish head skin using asam kandis (Garcinia cowa) as a natural acid solvent through an acid-based extraction method. The extraction process consisted of three main stages: degreasing, demineralization, and extraction at 55°C. An experimental approach was employed to assess the physicochemical parameters of the extracted gelatin. The analysis revealed moisture content of 10.01%, ash content of 0.24%, fat content of 1.07%, pH of 5.60, gelling point of 13°C, melting point of 29°C, and viscosity of 6.0 cP, all of which comply with the Indonesian National Standard (SNI 06-3735-1995) for gelatin quality. FTIR characterization showed distinctive absorption spectra for Amide A (3276–2939 cm⁻¹), Amide I (1630 cm⁻¹), Amide II (1532–1447 cm⁻¹), and Amide III (1241 cm⁻¹), confirming successful collagen conversion into gelatin. In conclusion, catfish head skin presents promising potential as a halal, eco-friendly gelatin source that meets national quality standards.
Pengaruh Cetyltrimethylammonium Bromide pada Nilai Bandgap Semikonduktor TiO₂-ZnO Rizki, Olga Tiara; Sanjaya, Hary
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6737

Abstract

This study aims to investigate the effect of adding the surfactant Cetyltrimethylammonium Bromide (CTAB) on the bandgap energy of the TiO₂-ZnO semiconductor material. The material was synthesized using the sol-gel method and characterized by UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS). Variations in CTAB concentration (0.015–0.035 grams) were introduced to evaluate changes in the material’s optical properties. The results show that CTAB addition up to 0.025 grams reduced the bandgap energy from 3.225 eV to 3.004 eV. This decrease is attributed to the formation of structural defects such as oxygen vacancies and reduced particle size, which introduce additional energy states within the bandgap. However, further addition of CTAB beyond 0.025 grams led to an increase in bandgap energy, likely due to particle agglomeration and structural disruptions. These findings indicate that CTAB not only acts as a surfactant but also plays a role in tuning the structure and optical properties of TiO₂-ZnO. Therefore, optimizing CTAB concentration is crucial for enhancing the material's performance in photocatalytic and solar cell applications.
Pengaruh Supporting Electrolyte terhadap Deteksi Ion Logam Pb(II) dan Cu(II) menggunakan PLE Termodifikasi Lapisan Tipis Perak dengan Metode Voltammetri Wartati, Sisri; Sari, Trisna Kumala
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6738

Abstract

This study aims to evaluate the effect of different supporting electrolytes on the detection sensitivity of Pb(II) and Cu(II) ions simultaneously using a Pencil Lead Electrode (PLE) modified with a thin silver layer via electrodeposition. The modification was carried out using a 5 mM AgNO₃ solution in 0.1 M KNO₃ through cyclic voltammetry, producing reduction and oxidation peaks at +0.2256 V and +0.5253 V, respectively, indicating successful silver deposition on the electrode surface. The supporting electrolyte variations included 0.1 M solutions of HNO₃, H₂SO₄, and HClO₄, tested for 1 mM Pb(II) and Cu(II) ion analysis. The voltammogram results showed that 0.1 M HNO₃ yielded the highest current responses 1.3550 mA for Pb(II) and 1.3305 mA for Cu(II) making it the most optimal supporting electrolyte. These differences are attributed to the ionic mobility and diffusion rate of the species toward the electrode surface. The findings demonstrate that the choice of supporting electrolyte significantly influences the performance of electrochemical sensors. This research contributes to the development of efficient, cost-effective, and sensitive PLE-based sensors for simultaneous heavy metal detection.
Pengaruh pH dan Waktu Kontak Adsorpsi Rhodamin B terhadap Ekstrak Pekat Flavonoid dari Kulit Rambutan (Nephelium lappaceum) Manalu, Silvani Indriani; Etika, Sri Benti
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6744

Abstract

Water pollution caused by industrial waste containing synthetic dyes such as Rhodamine B poses a serious threat to aquatic ecosystems and human health. One effective and cost-efficient method of treatment is the batch adsorption process, known for its operational simplicity and economic feasibility. This study aims to evaluate the potential of flavonoid extract as a biosorbent for Rhodamine B removal, and to determine the optimum pH, contact time, and adsorption capacity of the system. Flavonoid extract was selected due to its hydroxyl and carbonyl functional groups, which actively contribute to the adsorption process. The results indicate that the optimum pH is 3, with an adsorption capacity of 4.63710 mg/g, while the optimum contact time was reached at 60 minutes, achieving a maximum adsorption capacity of 21.59455 mg/g. These findings demonstrate that flavonoid extract, particularly derived from rambutan peel, has promising potential as a natural biosorbent for mitigating Rhodamine B contamination in aquatic environments.
Implikasi Pemahaman Perpajakan terhadap Kepatuhan Pelaporan SPT Tahunan PPh 21 Nafi’iyah, Hanunah; Rizki, Oktavia Aulia; Ibrahim, Muhammad Saddam Najib
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6758

Abstract

This study is motivated by the low compliance rate in the reporting of Annual Income Tax Returns (SPT) for Article 21 Income Tax (PPh 21), often attributed to taxpayers’ limited understanding of tax procedures, regulations, and obligations. The objective of this research is to analyze the implications of tax knowledge on compliance with PPh 21 annual reporting. A descriptive qualitative method was employed, with data collected through interviews and observations involving individual taxpayers. The findings reveal a significant gap in tax understanding among taxpayers, which directly affects their compliance levels. The study confirms a strong correlation between the level of tax knowledge and reporting compliance—higher awareness of tax rights and obligations leads to greater compliance. Therefore, increasing the frequency and quality of tax education and outreach is identified as a strategic approach to improving taxpayer compliance. The implications of this study highlight the importance of education-based strategies in tax administration policies and offer recommendations for further research with broader sample coverage and more diverse methodological approaches.
Efektivitas Kitosan Cangkang Kepiting (Scylla serrata) sebagai Koagulan untuk Mengurangi Mikroplastik Polistirena (PS) dalam Air Limbah Latifa, Jheni Sriayu; Dewata, Indang
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6765

Abstract

Microplastic pollution in wastewater has become an urgent environmental issue due to its resistance to degradation and its potential to contaminate the food chain. This study aims to develop a natural coagulant based on chitosan extracted from the waste shells of Scylla serrata (blue swimming crab) as an eco-friendly solution for precipitating polystyrene (PS) microplastics in wastewater. Chitosan was obtained through demineralization, deproteinization, and deacetylation processes, and its effectiveness was tested in a solution containing 50 mg of pure PS microplastics in 250 ml of wastewater. The results showed that the optimum pH for coagulation was 5, achieving a removal efficiency of 98.4%. The optimal chitosan concentration was 0.5%, resulting in a 97.6% removal rate, while the optimal stirring speed of 700 rpm yielded an efficiency of 89.2%. These findings indicate that chitosan derived from crab shell waste is an effective and sustainable coagulant for mitigating microplastic pollution and holds promising potential for application in environmentally friendly wastewater treatment.
Pemanfaatan Limbah Cangkang Kerang Darah sebagai Adsorben untuk Adsorpsi Zat Warna Methyl Orange Aprilianti, Cindy; Away, Romy Dwipa Yamesa
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6784

Abstract

Methyl orange is a toxic, carcinogenic, and mutagenic dye commonly found in textile industry wastewater, posing a serious threat to the environment. This study aims to determine the optimal conditions for the adsorption of methyl orange using a natural adsorbent derived from blood clam (Anadara granosa) shell waste, which remains underutilized despite being abundant and rich in calcium oxide (CaO). The methodology consisted of three main stages: adsorbent preparation, adsorption process, and concentration analysis using UV-Vis spectrophotometry. The variables investigated included adsorbent mass (7, 9, 11, and 13 grams), contact time (20, 40, 60, and 100 minutes), and solution pH (1, 3, 5, and 7). In addition, CaO content was analyzed using X-Ray Fluorescence (XRF) after the calcination process. The results indicated that the optimal adsorption condition was achieved with 11 grams of adsorbent, 60 minutes of contact time, and a solution pH of 1, resulting in an adsorption efficiency of 85.35%. XRF analysis revealed that the blood clam shell contained 97.704% CaO, which significantly contributed to its adsorption performance. These findings demonstrate that blood clam shell waste has strong potential as a low-cost, efficient, and environmentally friendly alternative adsorbent for treating textile dye wastewater.
Optimasi pH dan Waktu Kontak dalam Adsorpsi Methylene Blue dengan Ekstrak Kulit Rambutan Sridevitri, Sridevitri; Etika, Sri Benti
MASALIQ Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v5i4.6822

Abstract

The development of the textile industry in Indonesia produces hazardous waste, including toxic, carcinogenic, non-biodegradable Methylene Blue, which threatens aquatic ecosystems and human health. Adsorption is a simple and low-cost method widely used to reduce this pollution. This study aims to determine the effectiveness of flavonoid extracts from rambutan peel (Nephelium lappaceum L.) in adsorbing Methylene Blue, identify optimal adsorption conditions, and assess adsorption capacity. Analysis of the flavonoid extract using FTIR showed absorption peaks at 3265.13 cm-1 indicating O-H, at 2971.20 cm-1 indicating aliphatic C-H, and at 2280-2080 cm -1 detected C≡C or C≡N, at 1703.06 cm -1, C=O is detected at wavenumbers 1607.35 and 1519.01 cm-1, aromatic C=C is detected at wavenumbers 1446.51 and 1287.45 cm-1, C-O-C is detected at wavenumbers 1186.59 cm -1 detection of C-O-C or C-O-H bending at wavenumbers 874.50 and 751.93 cm-1 detection of aromatic C-H. The adsorption of Methylene Blue by flavonoid extracts is more consistent with the Langmuir isotherm, with a coefficient of determination (R) value of 0.996. The results of the study showed that the optimum conditions for Methylene Blue absorption occurred at pH 5 at 10.4825876 mg/g and at the optimum contact time of 80 minutes at 10.9669 mg/g.

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