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All Journal Cakrawala Pendidikan Jurnal Kependidikan: Penelitian Inovasi Pembelajaran Jurnal Pendidikan Sains Jurnal Pengajaran MIPA International Journal of Education Jurnal Inovasi Pendidikan IPA EduChemia: Jurnal Kimia dan Pendidikan Jurnal Penelitian dan Pembelajaran IPA Jurnal Tadris Kimiya Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan J-PEK (JURNAL PEMBELAJARAN KIMIA) JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Al Ishlah Jurnal Pendidikan QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama Al-Kimia Journal of Science Learning Indonesian Journal of Chemistry Kwangsan: Jurnal Teknologi Pendidikan Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Jendela Pendidikan Tafkir: Interdisciplinary Journal of Islamic Education Journal of Business, Social and Technology Jurnal MIPA dan Pembelajarannya
Fauziatul Fajaroh
Universitas Negeri Malang
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Synthesis of MnO2 as Supercapacitor Electrodes Material by Green Chemistry Method Through Dehydroxylation of Tangerine Peel (Citrus reticulata) Essential Oil Izzah, Dewi Jalinan; Fajaroh, Fauziatul; Aliyatulmuna, Adilah; Sumari, Sumari; Marfu'ah, Sitti
Al-Kimia Vol 10 No 2 (2022): DECEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v10i2.31459

Abstract

In this era, most technology requires electronic equipment. The performance of electronic equipment may be affected by energy storage components like a supercapacitor, so the development of supercapacitor electrode materials using green chemical methods needs to be pursued. Material with a good specific capacitance is MnO2. Most of the MnO2 synthesis methods are not based on green chemistry, so there is an alternative method. One of them is by utilizing the waste from tangerine peels. This study aimed to synthesize MnO2 through dehydroxylation of tangerine peel essential oil. The steps for conducting this research consisted of isolation of tangerine peel essential oil, analysis of the constituent components of tangerine peel essential oil, synthesis of MnO2 through dehydroxylation of essential oils tangerine peel, and MnO2 characterization. XRD results showed that MnO2 synthesized at pH 11 had the highest percentage of α-MnO2 (97%). This is evidenced by the presence of α-MnO2 diffractogram according to the ICSD No.20227. The SEM results showed that MnO2 had a spherical morphology with a particle diameter of 39.51 nm. α-MnO2 has a larger tunnel structure compared to β- and γ-MnO2, making the charge-discharge process easier so that α-MnO2 has the potential as a supercapacitor electrode material.
The Effect of Extraction Time of Raja Nangka Banana Peel as Capping Agent on the Characteristic and Antibacterial Activity of ZnO Nanoparticles Against Staphylococcus epidermidis Adinnia Apriandini; Fajaroh, Fauziatul; Aliyatulmuna, Adilah; Ciptawati, Endang
Al-Kimia Vol 10 No 2 (2022): DECEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v10i2.31484

Abstract

A green chemistry-based ZnO nanoparticle synthesis method based on plant extracts has been developed. Raja nangka banana peel is one of them. The extraction time is one of the elements that influences the amounts of secondary metabolites. The longer the extraction time, the more secondary metabolites are obtained. If the optimal time is exceeded, the secondary metabolite compounds will decrease. The purpose of this research was to determine the optimal time to extract secondary metabolites from the raja nangka banana peel and to know the effect of extraction time on the characteristics of ZnO nanoparticles, which include morphology, size, and antibacterial activity against Staphylococcus epidermidis. The steps of this research: maceration, phytochemical tests and total levels tests, synthesis of ZnO nanoparticles, characterization, and antibacterial activity test against Staphylococcus epidermidis. Maceration for 24 hours is the best time for extracting secondary metabolites from raja nangka banana peels. The SEM test results show that the morphology of the three samples had agglomeration. The ZnO nanoparticles with 24-hour raja nangka banana peel extract had a smaller size of 295.2 nm and were spherical. Inhibition zone diameter from ZnO nanoparticles with 24-hour raja nangka banana peel extract has a larger area of 5.65 mm.
Dynamic and Static Modeling Embedded in Inquiry Learning to Improve Student’s Multiple Representation Ability Langitasari, Indah; Effendy, Effendy; Fajaroh, Fauziatul
Jurnal Penelitian dan Pembelajaran IPA Vol 4, No 1 (2018): Available Online in May 2018 (Web of Science Indexed)
Publisher : Department of Science Education, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (460.855 KB) | DOI: 10.30870/jppi.v4i1.2881

Abstract

 Integration of dynamic and static modeling on guided inquiry learning can help students to understand chemical concepts at macroscopic, symbolic and microscopic levels. This research aimed to examine and to explain the differences of students’ multiple representation ability that was taught by guided inquiry with dynamic and static modeling in redox reaction concept. This research used descriptive and quasi-experimental design. Data were analyzed using descriptive and manova statistics analysis. The results showed that the ability of students’ macroscopic level that was taught by guided inquiry with dynamic and static modeling is the same. While the student’s symbolic and microscopic level ability that was taught by guided inquiry with dynamic modeling higher than student’s ability that was taught by guided inquiry with static modeling. The implication of this research is chemistry learning with dynamic modeling can help students to construct chemical concept more easily and gain the complete understanding.
The Effect of Implementation of Inquiry-based Learning with Socio-scientific Issues on Students' Higher-Order Thinking Skills Sitti Nurul Qamariyah; Sri Rahayu; Fauziatul Fajaroh; Naif Mastoor Alsulami
Journal of Science Learning Vol 4, No 3 (2021): Journal of Science Learning
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jsl.v4i3.30863

Abstract

This study investigates the effect of inquiry-based learning with socio-scientific issues on students' higher-order thinking skills in the first year based on chemistry topics. This study used a quasi-experiment design as a method. A sample of 96 students in three classes was selected and was divided into two groups. An experimental group used two classes (68 students) that received the instruction by inquiry-based learning with socio-scientific issues, while the control group (28 students) received instruction using verification learning. The data were collected using pretest and post-test. The results were analyzed using SPSS 16.0 for windows software by employing ANOVA and effect size. This study showed that the experimental groups have a higher score in Higher Order Thinking Skills than the control group students, and there was a significant difference between the experimental groups and the control group with a large effect size. Thus, this study concluded that inquiry-based learning with socio-scientific issues helps conduct the classroom's learning strategies to improve students' higher-order thinking skills.
Effectiveness of Dual Situated Learning Model in Improving High School Students’ Conceptions of Chemistry Equilibrium and Preventing Their misconceptions Muhammad Ali Kurniawan; Sri Rahayu; Fauziatul Fajaroh; Saeed Almuntasheri
Journal of Science Learning Vol 3, No 2 (2020): Journal of Science Learning
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jsl.v3i2.22277

Abstract

This study aims to compare the impact of the Dual Situated Learning Model (DSLM) and conventional instructions in improving High School Students’ understanding of chemical equilibrium concepts and the prevention of possible misconceptions. The study utilized a quasi-pretest-posttest control and experimental group design with two classes of XI SMAN as the research sample (N=60 students). Pre-posttests consisting of 12 two-tier questions (r = 0.691) used to assess the learners’ understanding of the chemical equilibrium. The results showed a significant difference in favor of the learners who taught using the DSLM model in comparison to those in the conventional approaches (Fount = 4.149; p = 0.003). Students in the experimental class had a better understanding and fewer misconceptions about the concept of chemical equilibrium. Implications for science educators suggest that learning that is designed by considering students' misconceptions or preconceptions and anticipating them through appropriate learning steps will have a positive influence on the learners’ conceptual understanding.
The Role of Mobile Decoder Flashcards for Students' Learning Outcomes, Islamic Values, and Learning Motivation Marzuq, Achmad Barik; Fajaroh, Fauziatul; Budiasih, Endang; Muntholib, Muntholib
Tafkir: Interdisciplinary Journal of Islamic Education Vol. 5 No. 3 (2024): Integrative Islamic Education
Publisher : Pascasarjana Universitas KH. Abdul Chalim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/tijie.v5i3.983

Abstract

Students, especially Muslims, are encouraged to consume halal and healthy food and tayyib (lawful). However, students faced a problem with how to distinguish good food. The current study aimed to investigate the benefits of using Problem-based learning (PBL) integrated with Islamic values with a decoder as learning media in increasing learning outcomes, Islamic value, and learning motivation for chemistry subjects this paper aims to examine the predictive role of mobile DECODER flash card for learning outcomes, Islamic values and learning motivation on high school students. The research was conducted on a representative sample (N = 120) of students in Pasuruan, East Java, Indonesia. Mobile Decoder Flashcards affect Islamic Values and the learning motivation of students. Students with higher Islamic Values are more interested and pay more attention during learning activities. The results of this research confirm that the Mobile DECODER Flashcard positively affects students' Islamic values and learning motivation. This study's findings show a higher score for experimental class students' Islamic values and learning motivation than the control class students' scores.
Chemical Literacy Skill of High School Students on the Solution Chemistry Senna Prasemmi; Sri Rahayu; Fauziatul Fajaroh; Saeed Almuntasheri
Jurnal Tadris Kimiya Vol 6, No 1 (2021)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v6i1.10392

Abstract

This research aimed to develop a multiple-choice chemical literacy test on solution chemistry as an instrument that specifically focuses on learners' knowledge and competency aspects; applying the test instrument by surveying 12th-grade high school students. The development of the test instrument adapted the R&D model by Borg and Gall. The Cronbach's Alpha reliability of the test was obtained after small-scale and wide-scale trials are 0.793 and 0.833, respectively, with 35 valid items. Data were collected using random cluster sampling with a total of 463 respondents. The result shows that the mean score of chemical literacy for the students in this study is 46.27. This indicated that the students' level of chemical literacy is low, and further improvement is required.  
Efektivitas Penggunaan Ekstrak Kulit Pisang Rajanangka Sebagai Capping Agent Dalam Sintesis Nanopartikel ZnO Serta Uji Aktivitas Sebagai Antibakteri Fikriansyah, Muhammad Ary; Fajaroh, Fauziatul; Aliyatulmuna, Adilah; Ciptawati, Endang
Jurnal Ilmiah Jendela Pendidikan Vol 11 No 2 (2022): Jendela Pendidikan
Publisher : Fakultas Keguruan dan Ilmu Pendidikan - Universitas Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55129/jp.v11i2.1895

Abstract

Penelitian ini bertujuan untuk mengetahui efektivitas penggunaan ekstrak kulit pisang Rajanangka dalam sintesis nanopartikel ZnO, mengkarakterisasi nanopartikel ZnO hasil sintesis, dan uji aktivitas sebagai antibakteri terhadap bakteri gram positif dan negatif. Penelitian ini dilakukan dalam empat tahap, yaitu: 1) Ekstraksi senyawa-senyawa metabolit sekunder dari kulit pisang Rajanangka, 2) Uji fitokimia pada ekstrak kulit pisang Rajanangka meliputi: polifenol, saponin, alkaloid, dam flavonoid, 3) Sintesis nanopartikel ZnO menggunakan ekstrak kulit pisang Rajanangka dan tanpa menggunakan ekstrak kulit pisang Rajanangka, 4) Karakterisasi nanopartikel ZnO menggunakan XRD, SEM, PSA, dan Uji Aktivitas Antibakteri. Hasil uji XRD menunjukkan bahwa nanopartikel ZnO yang disintesis menggunakan ekstrak kulit pisang Rajanangka memiliki persentase kristalinitas nanopartikel ZnO menggunakan ekstrak kulit pisang Rajanangka lebih tinggi (70,14%) dibandingkan kristalinitas nanopartikel ZnO (67,18%) tanpa menggunakan ekstrak kulit pisang Rajanangka. Hasil uji SEM menunjukkan bahwa nanopartikel ZnO hasil sintesis memiiki bentuk morfologi seperti “batang”, nanopartikel ZnO yang disintesis menggunakan ekstrak kulit pisang Rajanangka tidak mengalami penggumpalan (aglomerasi) dibandingkan dengan nanopartikel ZnO hasil sintesis tanpa menggunakan ekstrak kulit pisang Rajanangka. Hasil uji PSA menunjukkan bahwa nanopartikel ZnO yang disintesis menggunakan ekstrak kulit pisang Rajanangka memiliki rata-rata distribusi ukuran partikel (289,2 nm) lebih kecil dibandingkan yang disintesis (469,4 nm) tanpa menggunakan ekstrak kulit pisang Rajanangka. Selain itu, nanopartikel ZnO yang disintesis menggunakan ekstrak kulit pisang Rajanangka memiliki diameter zona hambat terhadap bakteri gram positif Bacillus subtilis (1,40 mm) dan bakteri gram negatif Pseudomonas aeruginosa (2,58 nm) lebih besar dibandingkan nanopartikel ZnO yang disintesis tanpa menggunakan ekstrak kulit pisang Rajanangka terhadap bakteri gram positif Bacillus subtilis (1,28 mm) dan bakteri gram negatif Pseudomonas aeruginosa (1,78 mm). Sehingga dapat disimpulkan bahwa nanopartikel ZnO yang disintesis menggunakan ekstrak kulit pisang Rajanangka memiliki kualitas yang lebih baik.
Chemical Literacy Skill of High School Students on the Solution Chemistry Prasemmi, Senna; Rahayu, Sri; Fajaroh, Fauziatul; Almuntasheri, Saeed
Jurnal Tadris Kimiya Vol 6 No 1 (2021)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v6i1.10392

Abstract

This research aimed to develop a multiple-choice chemical literacy test on solution chemistry as an instrument that specifically focuses on learners' knowledge and competency aspects; applying the test instrument by surveying 12th-grade high school students. The development of the test instrument adapted the R&D model by Borg and Gall. The Cronbach's Alpha reliability of the test was obtained after small-scale and wide-scale trials are 0.793 and 0.833, respectively, with 35 valid items. Data were collected using random cluster sampling with a total of 463 respondents. The result shows that the mean score of chemical literacy for the students in this study is 46.27. This indicated that the students' level of chemical literacy is low, and further improvement is required.  
Pengembangan Model Pembelajaran Collaborative Problem Based Learning Pada Pembelajaran Kimia di Perguruan Tinggi Hidayah, Rusly; Fajaroh, Fauziatul; Narestifuri, Romita Erika
QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama Vol. 13 No. 2 (2021): Qalamuna - Jurnal Pendidikan, Sosial, dan Agama
Publisher : Lembaga Penerbitan dan Publikasi Ilmiah Program Pascasarjana IAI Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/qalamuna.v13i2.1016

Abstract

Learning activities, especially in chemistry lessons, are challenging and quite complicated learning activities. In addition, the provision of information such as teaching materials from lecturers needs to be reduced so that students can find, process, and use the learning resources they get. One of the learning models that can be used is the Collaborative Learning (CL) and Problem Based Learning (PBL) models. This model provides an opportunity to develop the social skills needed. Therefore, the researcher took the initiative to conduct a literature study to determine the effect of applying CL and PBL on chemistry learning. This research was conducted using a systematic analysis approach through several references in the form of journals published in the last 10 years, articles relevant to the research topic. Based on research results from several journals, it can be concluded that the CL model combined with PBL allows lecturers and students to share information more effectively and efficiently.
Co-Authors Adilah Aliyatulmuna Adinnia Apriandini Adrian Nur Aldresti, Fitri Almuntasheri, Saeed Aman Santoso Anjamputra A. Embisa Arif Jumari Arum Dwisetyo Arini Arum Setyaningsih Bambang Kuswandi Budipramana, Krisyanti Ciptawati, Endang Danar Danar Della Dwi Taufin Deni Ainur Rokhim Djoko Adi Walujo Effendy, Effendy Endang Budiasih Eris Ratnawati Fikriansyah, Muhammad Ary Hayuni Retno Widarti Heru Elisa Manafe I Wayan Dasna Ida Bagus Suryadharma Indah Nurhayati Intan Mahanani Izzah, Dewi Jalinan Jundi Rofi’uddien Klaudia E.N Bambut Lailatul Ilmiyah Lailatur Rizqiyah Laili Nur Azizah Langitasari, Indah Lita Novilia Lita Novilia, Lita Marfu'ah, Sitti Marzuq, Achmad Barik Muhammad Abdul Basir Muhammad Ali Kurniawan Muhammad Ary Fikriansyah Muntholib Munzil Naif Mastoor Alsulami Narestifuri, Romita Erika Nazriati Nazriati dkk. Nendi, Ikhsan Nike Kusuma Wardhani Noor Fathi Maratusholihah Nur Adrian nur laili iktafiyah Nuril Mega Musfita Parlan . Parmin Parmin Prasemmi, Senna Prayitno Prayitno Pusaka, Semerdanta Putu Anindita Widhiya Putri Ragil Sugeng Dewantoro Rahayu Isma Romita Erika Narestifuri Rusly Hidayah Rusly Hidayah RUSLY HIDAYAH S. Luluk AN Nisak M Saeed Almuntasheri Saeed Almuntasheri Senna Prasemmi Sentot Kusairi Siti Marfuah, Siti Sitti Nurul Qamariyah Sri Rahayu SRI RAHAYU Srini M Iskandar Srini M. Iskandar Subandi Subandi Subandowo, Marianus Suhadi Ibnu Suhadi Ibnu Suhadi Ibnu Suharti Sumari Sumari Suryani Indah Permatasari Wildan Alfin Romadhona Yahmin Yahmin Yanatra Budi Pramana Yudhi Utomo