Article Per Year (5 Year)
p-Index From 2020 - 2025
2.177
P-Index
This Author published in this journals
All Journal International Journal of Renewable Energy Development Jurnal Pendidikan Teknologi dan Kejuruan PENDIDIKAN VOKASI:TEORI DAN PRAKTIK Jurnal Pendidikan Teknik Mesin Science and Technology Indonesia Indonesian Journal of Chemistry International Journal for Educational and Vocational Studies Jurnal Abdi: Media Pengabdian Kepada Masyarakat Jurnal Inovasi dan Teknologi Pembelajaran (JINOTEP) Kajian dan Riset Dalam Teknologi Pembelajaran Molekul: Jurnal Ilmiah Kimia
Supari Muslim
Program Studi S2 Pendidikan Teknologi dan Kejuruan Universitas Negeri Surabaya
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

Published : 21 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 21 Documents
Search

 1   2   3 
Effect of natural dye combination and pH extraction on the performance of dye-sensitized photovoltaics solar cell Estiningtyas, Indri Wasa; Kusumawati, Nita; Setiarso, Pirim; Muslim, Supari; Rahayu, Nunik Tri; Safitri, Riska Nur; Zakiyah, Nafisatus; Fachrirakarsie, Fadlurachman Faizal
International Journal of Renewable Energy Development Vol 12, No 6 (2023): November 2023
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2023.56172

Abstract

Dyes are significant components in Dye Sensitized Solar Cell (DSSC) performance because they act as photosensitizers. Natural dye-based DSSC system fabrication innovations continue to be produced in an effort to improve DSSC performance efficiency. In this study, a DSSC system was developed using double components of natural dyes as natural photosensitizers to enhance DSSC efficiency. This method of making natural dye-based DSSC uses a combination of dye extracts from two different dye sources that have the potential as natural photosensitizers in DSSC. The research aims to investigate the impact of the combined use of two natural dyes and pH variations on DSSC performance. DSSC performance measurements encompass the short-circuit current (Isc), open-circuit voltage (Voc), and DSSC efficiency parameters. The obtained results indicate efficiency values for dyes (a) sappan wood/ethanol and turmeric/methanol; (b) turmeric/methanol and beetroot/ethanol; and (c) beetroot/ethanol and turmeric/distilled water. At neutral pH, the efficiency values are 2.09%, 2.10%, and 2.19%, respectively. Meanwhile, at acidic pH of 2.59%; 2.39%; and 2.71%. Notably, the dye efficiency values at acidic pH surpass those found at neutral pH conditions. The highest efficiency is observed in the combination of dye (c) beetroot/ethanol and turmeric/distilled water with efficiency reaching 2.71% at acidic pH.
Optimization Thickness of Photoanode Layer and Membrane as Electrolyte Trapping Medium for Improvement Dye-Sensitized Solar Cell Performance Kusumawati, Nita; Setiarso, Pirim; Muslim, Supari; Hafidha, Qonita Arky; Cahyani, Sinta Anjas; Fachrirakarsie, Fadlurachman Faizal
Science and Technology Indonesia Vol. 9 No. 1 (2024): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.1.7-16

Abstract

Dye-Sensitized Solar Cells (DSSC) are photovoltaic devices that contain a dye that acts as a solar light acceptor. The use of dyesensitized solar cells to solve increasing energy demand and environmental problems still results in low efficiency values. In this study, optimization of DSSC components was carried out to increase DSSC efficiency by varying the thickness of the titanium dioxide (TiO2) semiconductor photoanode layer, polyvinylidene fluoride (PVDF) trap electrolyte membrane, and polyvinylidene fluoride nanofiber (PVDF NF) to obtain the optimum thickness. Scanning Electron Microscope (SEM) results of membrane thickness variation and titanium dioxide (TiO2) semiconductor photoanode coating showed the formation of nanofiber fibers composed of three-dimensional, porous, and diameter networks connected to the PVDF NF membrane. The increase in density and decrease in pore size, along with an increase in thickness and cracking as the TiO2 photoanode semiconductor layer increases, affect the electron transport rate of the DSSC. The higher particle density level will inhibit the electron transport rate, so it can reduce the efficiency of DSSC. The optimum thickness of the TiO2 semiconductor layer and PVDF NF electrolyte membrane of 0.20 mm and 0.35 mm can produce values, voltage, fill factor current density, and electrical efficiency of 500 mV, 2.7 x 10−3 mA.cm−2, 1.80%, and 2.40%, respectively.
Development and Characterization of Edible Films Based on Gelatin/Chitosan Composites Incorporated with Zinc Oxide Nanoparticles for Food Protection Bahar, Asrul; Samik, Samik; Sianita, Maria Monica; Kusumawati, Nita; Khafidlah, Ianatul; Muslim, Supari; Auliya, AR. Sella
Molekul Vol 18 No 3 (2023)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2023.18.3.6630

Abstract

The increase in cases of global environmental pollution due to plastic waste makes the development of biodegradable active packaging very urgent. Gelatin (G), is one of the potential edible film raw materials. However, its weak water barrier and mechanical properties have limited its wide application. The addition of chitosan nanofiber (CHNF) and zinc oxide nanoparticles (ZnONP) is expected to improve the mechanical and barrier properties and present antioxidant and antimicrobial properties to the G film. Characterization results using FTIR, SEM, and DSC showed good compatibility between the G, CHNF, and ZnONP matrix. Meanwhile, the packaging test results confirmed that gelatin, CHNF, and ZnONP-based composite films have the potential to be used as functional materials in food packaging.
Characterization and Application of Natural Photosensitizer and Poly(vinylidene Fluoride) Nanofiber Membranes-Based Electrolytes in DSSC Zakiyah, Nafisatus; Kusumawati, Nita; Setiarso, Pirim; Muslim, Supari; A'yun, Qurrota; Putri, Marinda Mayliansarisyah
Indonesian Journal of Chemistry Vol 24, No 3 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.86386

Abstract

This comprehensive research has explored the potential of enhancing dye-sensitized solar cells (DSSC) by harnessing environmentally friendly natural dyes, such as chlorophyll pigments from pandanus (664.1 nm) and papaya leaves (664.0 nm), as well as betacyanin pigments from sappan-mangosteen (536.2 nm). Electrochemical analyses elucidated the energy band gaps, revealing a hierarchy with the smallest band gap observed for papaya leaves (1.387 eV), followed closely by sappan-mangosteen (1.389 eV) and pandan leaves (1.396 eV). This research effectively addressed the persistent issue of electrolyte leakage in DSSC development by introducing a polymer electrolyte derived from polyvinylidene fluoride (PVDF) through electrospinning and phase inversion techniques. SEM characterization results and thermogravimetric analysis underscored the superior characteristics and high thermal stability of the PVDF nanofiber polymer for DSSC applications. The study's pivotal findings underscore the remarkable DSSC performance achieved with chlorophyll pigment from papaya leaves, reaching 1.31% efficiency without a polymer electrolyte. Moreover, the sappan-mangosteen dye emerged as a promising contender with the highest efficiency values when applied with polymer electrolyte, recording rates of 1.17% for PVDF NF and 0.95% for PVDF, which are notably comparable to the efficiency of liquid electrolyte at 1.26%.
Optimizing Dye-Sensitized Solar Cell (DSSC) Performance through Synergistic Natural Dye Combinations from Beta vulgaris L., Curcuma longa L., and Pandanus amaryllifolius Kusumawati, Nita; Setiarso, Pirim; Muslim, Supari; Zakiyah, Nafisatus; Rahmawati, Khofifatul; Fachrirakarsie, Fadlurachman Faizal
Indonesian Journal of Chemistry Vol 24, No 6 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.93830

Abstract

This study optimizes dye-sensitized solar cell (DSSC) performance using a combination of natural dye components extracted from Beta vulgaris L. (beetroot), Curcuma longa L. (turmeric), and Pandanus amaryllifolius (pandanus leaf). These plants were selected for their natural pigments—betacyanin, curcuminoids, and chlorophyll—which potentially act as DSSC sensitizers. Dyes were extracted via maceration with ethanol solvent (1:6 sample:solvent ratio) for 24 h. Filtrates were combined in various ratios to test DSSC performance. The optimal C4 dye combination, with a 2:1:1 ratio (betacyanin:curcumin:chlorophyll), demonstrated the best performance. The UV-vis analysis revealed complex interactions and synergistic effects among dye combinations, characterized by increased light absorption in the 400–700 nm range. Cyclic voltammetry analysis showed favorable energy band gap values, confirming the pigments' suitability for DSSC applications. FTIR analysis confirmed the stable coexistence of the three dyes without new bond formation. Photovoltaic performance testing showed the C4 three-dye combination achieved the highest energy conversion efficiency of 3.57%. These results demonstrate the potential of this dye combination to contribute to the development of sustainable and efficient solar energy conversion in DSSCs.
Optimization of Radiation and Electric Current Storage in a Dye-Sensitized Solar-Cell System Based FTO/TiO2 /Acy/PVDF/C/FTO Modules for Electrical Equipment Applications Kurniawan, Muhammad Ridho Hafid; Cahyani, Sinta Anjas; Kusumawati, Nita; Setiarso, Pirim; Muslim, Supari
Science and Technology Indonesia Vol. 10 No. 2 (2025): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.2.574-587

Abstract

Indonesia has an electrification rate exceeding 99% as of 2020, yet it faces increasing electricity demands amid declining fossil fuel availability. Solar energy, particularly through DSSC, presents a promising renewable alternative, benefiting from an abundant radiation potential of up to 120.000 TW. DSSC have garnered significant attention due to their thin design, high efficiency, ease of fabrication, and environmental friendliness. The DSSC module was designed using two FTO glass plates as electrodes, with an anode surface area of 3 cm2. The TiO2 photoanode was prepared using a casting knife technique and then sintered at 450°C for one hour. This was followed by sensitization with anthocyanin dye derived from the butterfly pea flower under acidic conditions for 24 hours to ensure the stability of the compound. The electrolyte system consisted of PVDF NF membranes soaked in the electrolyte    solution for one hour to prevent leakage, thus completing the FTO/TiO2/PVDF/C/FTO system. Performance optimization involved arranging 20 DSSC cells in a mixed series-parallel circuit configuration. Electrical parameters were measured using a multimeter under various lamp irradiation durations. The optimal efficiency was achieved with 5 hours of irradiation, resulting in 2.050 mV and 23.5 x 10-3 µA. When integrated into a battery system, the DSSC module demonstrated effective current storage stability over 6 hours, indicating strong potential for practical implementation in sustainable energy generation for real-world applications. 
Effectiveness of Jigsaw Cooperative Learning Models In Lessons of the Basics of Building Construction on Students Learning 'Outcomes Viewed From Critical Thinking Skills Subiyantari, Ansheila Rusyda; Muslim, Supari; Rahmadyanti, Erina
International Journal for Educational and Vocational Studies Vol. 1 No. 7 (2019): November 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v1i7.1653

Abstract

This study aims to analyze the differences in the effectiveness of the Jigsaw cooperative learning model and the direct learning model of student learning outcomes in DKB subjects in class X DPIB of Vocational High School 2 Surakarta; to analyze the differences in learning outcomes between students who have high critical thinking skills and students who have low critical thinking skills in DKB subjects in class X DPIB Vocational High School 2 Surakarta; and to analyze whether there is an interaction between the learning model and students' critical thinking skills towards student learning outcomes in the class X DKB DPIB Vocational High School 2 Surakarta. This study is a quantitative experimental study with a 2x2 factorial design. The sample of this study was the tenth grade students of DPIB Vocational High School 2 Surakarta in the 2018/2019 academic year, totaling 64 students. Data obtained from the results of observations, interviews, and tests. The data analysis technique uses 2-way Anava technique. The results is study's learning using Jigsaw cooperative learning model obtain the results of cognitive learning higher significant than learning outcomes cognitive students learn by using direct learning model on the subjects of DKB in Vocational High School 2 Surakarta; cognitive learning outcomes for students who have critical thinking skills height significantly higher than the results of cognitive learning students who have the skills to think critically low on the subjects of DKB in Vocational High School 2 Surakarta; and there is a very significant interaction between the learning model and the skill level which is critical to the cognitive learning outcomes of students in the DKB subjects at Vocational High School 2 Surakarta.
The Effect of Problem Based Learning Models and Levels of Creativity Toward Student Outcomes in Vocational High School Dasining, Dasining; Muslim, Supari; Handajani, Sri
International Journal for Educational and Vocational Studies Vol. 1 No. 6 (2019): October 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v1i6.1659

Abstract

This study aims to determine the level of creativity of students who are taught using problem based learning models and students who are taught using direct learning models. To find out the learning outcomes of students who have a high level of creativity and creativity level of creativity is low. The method used in this study is Quasi Experimental. The design used is a 2x2 factorial design, because this design can be used to see student learning outcomes before administering treatments and after giving treatments. The results of the study found: (1) the level of creativity of students who study using a learning model based on higher learning outcomes compared to students who learn with the direct learning model; (2) student learning outcomes with a high level of creativity, significantly higher than students who have low levels of creativity; and (3) there is an interaction between the use of learning models and the level of creativity on student learning outcomes. This study concludes that: (1) problem based learning models can improve student creativity; (2) students who have a high level of creativity, higher learning outcomes than students who have low levels of creativity; and (3) there is an interaction between the use of learning models and the level of creativity on student learning outcomes.
Effect of Media Trainer on Electromagnetic Control and Industrial Panel on Learning Outcomes Rachmawan, Adi Ika; Muslim, Supari; Suprianto, Bambang
International Journal for Educational and Vocational Studies Vol. 1 No. 7 (2019): November 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v1i7.1678

Abstract

The purpose of this research is: (1) to determine the quality of the learning medium of electromagnetic control trainers and learning devices, and learning instruments using problem-based learning models; (2) to know the influence of students ' learning outcomes between the learning media of electromagnetic control trainers and industry panels on student learning outcomes. This type of research used was experimental quasi research with a quantitative approach and a Nonequivalent control group design. The learning outcomes in this study were the results of the study of the cognitive sphere, the study of the affective realm, and the results of learning psychomotor realm. Data collection is with test sheets on pretes and postes for cognitive learning outcomes, observation sheets of students learning attitudes for the results of the affective realm and observation sheets for psychomotor realm learning outcomes. The results showed that: (1) The learning medium of electromagnetic control trainers, learning devices, and learning instruments using problem-based learning models received excellent quality results; (2) Learning results of students who learn to use the learning media of the higher electromagnetic control trainer significantly compared to the learning outcomes of students who learn using industrial panel media.
The correlation of industrial work experience and soft skills on work readiness of graduated of vocational high school Azizah, Diana Nur; Muslim, Supari; Cholik, Mochamad
International Journal for Educational and Vocational Studies Vol. 3 No. 4 (2021)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v3i4.3018

Abstract

The demands of the world of work require that every student must have competence. Work readiness to enter the world of work can be influenced by several factors. Do soft skills and industrial practical work experience affect vocational students' work readiness? This study aims to obtain a correlation between practical industrial work experience and soft skills on vocational school students' work readiness with quantitative methods through a questionnaire using google form at Vocational High School of RadenPatah, Mojokerto, class XII, majoring in Mechanical Engineering. The data obtained from 72 students in the sample were analyzed by using the Multiple Regression Test using SPSS 23 software. The results of this study indicate: (1) there is a significant correlation with the direction of a positive relationship between industrial work practice experience and work readiness of 24.4% (2) there is a significant correlation with the direction of the positive relationship between soft skills and work readiness of 25.4% (3) there is a significant correlation with the direction of the positive relationship between industrial work practice experience and soft skills simultaneously to work readiness by 31.1%.
Co-Authors -, Munoto A'yun, Qurrota A.A. Ketut Agung Cahyawan W Adi Ika Rachmawan Ahmad Fathoni andu andu, andu Asrul Bahar Auliya, AR. Sella Azizah, Diana Nur Cahyani, Sinta Anjas Dasining, Dasining Estiningtyas, Indri Wasa Euis Ismayati Fachrirakarsie, Fadlurachman Faizal Hafidha, Qonita Arky Khafidlah, Ianatul Kurniawan, Muhammad Ridho Hafid Maria Monica Sianita MEDA WAHINI Mochamad Cholik Munoto Munoto Nita Kusumawati Nurlaela, Lutfiyah Pirim Setiarso Putri, Marinda Mayliansarisyah Rahayu, Nunik Tri Rahmadyanti, Erina Rahmawati, Khofifatul Riska Nur Safitri, Riska Nur RR. Ella Evrita Hestiandari Samik Samik Soeryanto Soeryanto Sri Handajani Subiyantari, Ansheila Rusyda Theodorus Wiyanto Wibowo Tri Rijanto Umaroh, Susi Tri WARJU Wiyanto, Theodorus Yuanita Aritantia, Yuanita Zakiyah, Nafisatus