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EduChemia: Jurnal Kimia dan Pendidikan

EduChemia
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Published by Universitas Sultan Ageng Tirtayasa

ISSN : 25024778 EISSN : 25024787 DOI : http://dx.doi.org/10.30870/educhemia.v6i2.10412

Core Subject : Science, Education, Engineering,

Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology

Focus and Scope Educhemia (Jurnal Kimia dan Pendidikan) is Periodicals published the results of research related to the development of science and technology in the field of Chemistry and Chemistry education as a form of intellectual property Chemistry: Organic chemistry, Inorganic chemistry, Biochemistry, Physical chemistry, Analytical Chemistry, Environmental Chemistry, Material chemistry, Ethnochemistry. Chemistry education: chemistry learning design and model, chemical education curricula, Technology innovation and media/multimedia in chemistry learning, development of evaluation tools, lesson study and classroom action research

Arjuna Subject : Kimia(semua kategori) - Kimia Organik

Articles 155 Documents

5 6 7 8 9

Back Matter Vol 5 No 2 (Author Index, Subject Index, Author Guidelines, Acknowledgment) EduChemia EduChemia
EduChemia (Jurnal Kimia dan Pendidikan) Vol 5, No 2 (2020)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Optimasi Sintesis Biomaterial Perak-Porfirin dari Kerabang Telur Puyuh Dewi Kurnianingsih Arum Kusuma Hastuti; Cucun Alep Riyanto
EduChemia (Jurnal Kimia dan Pendidikan) Vol 4, No 1 (2019)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Porfirin merupakan pigmen warna alami khas yang terdapat dalam kulit telur puyuh. Tujuan dari penelitian ini adalah untuk menentukan waktu dan suhu optimum dalam pembentukan biomaterial. Pelarut yang digunakan untuk ekstraksi adalah metanol:HCl (2:1, v/v) selama 12 jam. Hasil biosintesis yang terbentuk, kemudian dianalisa dengan spektrofotometer UV-VIS. Sebagai hasilnya, kompleksasi optimal antara porfirin dengan ion Ag+ terlihat pada panjang gelombang 845 nm yaitu pada waktu 5,62 jam; rasio 1:2.20, dan suhu sebesar 30°C. Hal tersebut diperoleh berdasarkan persamaan Response Surface Method Y = -17.95+0,63X1+13.26X2+0.88X3-3.7x10-3X2X32-0,46X1X3+0,04X22X3-0,08X12-1,87X22-9,68x10-3X32.

Synthesis, Characterization and Antioxidant Activity of Kobalt (II)-Hydrazone Complex Yulyani Nur Azizah; Irma Mulyani; Deana Wahyuningrum; Damar Nurwahyu Bima
EduChemia (Jurnal Kimia dan Pendidikan) Vol 5, No 2 (2020)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

The potency of the first-row transition metal complexes with Schiff's base ligand as an antioxidant has been widely studied by researchers. In this study, hydrazone-type Schiff base compounds, salicylaldehyde-2,4-dinitrophenylhydrazone (SDPH), resulted from the condensation of salicylaldehyde (1.5 mmol) and 2,4-dinitrophenylhydrazine (1.5 mmol) were synthesized and characterized with 1H-NMR. The synthesized SDPH was used as ligands in the formation of Co(II) metal complexes. The Co(II)-SDPH complexes were synthesized with reflux reaction at 60oC for 6 hours in molar ratio 1:3. Triethylamine is used to synthesis Co(II)-SDPH, which serves to deprotonate SDPH ligands. ESI-MS analysis showed that the complex is a neutral dimeric complex.The complex has the chemical formula [Co2(SDPH)2[(Et)3N]2(acn)2(OH)2} ([M+Na]+ = 1061 g/ mol), shown on the ESI-MS spectrum. Coordinate bonds between Co (II) metal ions with ligands are observed in the presence of shifting of the C=N wave number, as well as the loss of the vibrating peaks of the O-H groups to the infrared spectra of complexes. The IR spectrum of complexes was suggested that SDPH behave as a bidentate ligand through the azomethine nitrogen atom and phenolic oxygen atom. The ligand and its Co(II) complex have been screened for antioxidant activity against DPPH (2,2-diphenyl-1-picrylhydrazine). Based on the activity test results, the IC50 value of Co(II)-SDPH complex was lower than ligand. These results show that Co(II)-SDPH are potentials as antioxidants.

Back Matter Vol 6 No 1 (Author Guidelines, Acknowledgment) EduChemia EduChemia
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 1 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Application of Dry Biomass of Aphanothece sp. as A Biosorbent of Copper Heavy Metal Fauzi Abdilah; Lina Troskialina
EduChemia (Jurnal Kimia dan Pendidikan) Vol 5, No 1 (2020)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Various technologies have been developed to reduce heavy metal content in the wastewater. The biosorption method is a technique that is widely applied because it is cheap, environmentally friendly, and has high efficiency. This study aims to ascertain the potential of dry biomass of microalgae Aphanothece sp. as a biosorbent of Cu (II) ions in synthetic wastewater and determine the appropriate biosorption kinetics model. Analysis of Cu (II) ion concentrations was carried out using Atomic Absorption Spectrophotometer (AAS). The results showed that the optimum conditions for the biosorption process were at pH 4, and the contact time was 210 minutes with the removal efficiency of Cu (II) ions reaching 80.02%. The results of tests on the adsorption isotherm model showed that the biosorption process of Cu (II) ions using dry biomass biosorbent Aphanothece sp. follows the Freundlich isotherm model with an R2 value of 0.9962.

Pengaruh Karakteristik Bioplastik Pati Singkong dan Selulosa Mikrokristalin Terhadap Sifat Mekanik dan Hidrofobisitas Sinda Intandiana; Akbar Hanif Dawam; Yus Rama Denny; Rahmat Firman Septiyanto; Isriyanti Affifah
EduChemia (Jurnal Kimia dan Pendidikan) Vol 4, No 2 (2019)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Bioplastik merupakan salah satu alternatif pengganti plastik. Karena bioplastik terbuat dari biopolimer yang dapat terdegradasi oleh mikroorganisme. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh karakteristik biopslatik pati singkong dengan kandungan selulosa 0% (tanpa penambahan selulosa) dan bioplastik pati singkong dengan penambahan selulosa 10% terhadap sifat mekanik dan hidrofobisitasnya. Pengujian karakteristik dari penelitian ini adalah uji mekanik, uji ketahanan air dan uji sudut kontak. Hasil yang diperoleh pada bioplastik dengan penambahan kandungan selulosa 10% memiliki kekuatan tarik yang lebih tinggi dibandingan dengan bioplastik tanpa penambahan selulosa. Penambahan dengan kandungan selulosa 10% yang memiliki kekuatan tarik 14,3 MPa. Sedangkan hasil yang didapatkan pada uji water uptake dan sudut kontak menyatakan bahwa bioplastik dengan penambahan kandungan selulosa bersifat hidrofilik.

Practicality of an Android Based Chemistry Adventure Game as a Chemical Bond Learning Media Valdo Ayona; Rusly Hidayah
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 1 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

The purpose of this study is to test the development of a proper Chemistry Adventure Game as an android-based game media on Chemistry Bond material at MA Negeri 2 Mojokerto. Practicality. Practicality is obtained from students' observation and questionnaire responses. The research method used is a research and development body carried out until practicality of android-based game media for students. Practicality test at X MIPA 1 class MA Negeri 2 Mojokerto. The data obtained from the practicality of the media Chemistry Adventure Game (1) 86,3% students, activity with a very practical category, (2) 87,88% questionnaire responses with a very practical category. Based on the results of the study, it can be concluded that the developed Chemistry Adventure game is suitable for use as a learning media.

Penerapan Model Pembelajaran POGIL sebagai Upaya Meningkatkan Pemahaman Konsep Larutan Penyangga Alana Putri Rahmawati; Ratna Sari Siti Aisyah; Isriyanti Affifah
EduChemia (Jurnal Kimia dan Pendidikan) Vol 4, No 1 (2019)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Siswa masih mengalami kesulitan dalam memahami konsep larutan penyangga, sehingga penelitian ini bertujuan untuk mengetahui peningkatan pemahaman konsep larutan penyangga dengan menerapkan model pembelajaran POGIL (Process Oriented Guided Inquiry Learning). Penelitian ini dilakukan di SMA Negeri 5 Kota Serang kelas XI tahun ajaran 2017/2018. Metode yang digunakan dalam penelitian ini adalah metode quasi eksperimen dengan desain penelitian two group pre test post test design. Sampel penelitian ini terdiri dari 59 siswa yang terbagi menjadi 2 kelas, yaitu 29 siswa kelas eksperimen dan 30 siswa kelas kontrol yang diperoleh dengan menggunakan teknik purposive sampling. Pengumpulan data pemahaman konsep siswa diperoleh dengan menggunakan instrumen tes. Hasil penelitian mengungkapkan pemahaman konsep larutan penyangga yang diajarkan dengan menggunakan model pembelajaran POGIL mengalami peningkatan yang signifikan yang ditunjukan dengan nilai rata-rata gain sebesar 0,44 yang berada pada kategori sedang.

Utilization of Nata De Coco as Adsorben in Methyl Orange Adsorption Sani Widyastuti Pratiwi; Siska Novita Sari; Ratna Nurmalasari; Meli Indriani
EduChemia (Jurnal Kimia dan Pendidikan) Vol 5, No 2 (2020)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Methyl Orange was a textile waste that polluted the environment and harmed aquatic ecosystems and human life. It could affect the photosynthesis of oxygen regeneration and disrupt the biological activity of microbes in the water. One of the ways to deal with these wastes by adsorption using Nata de coco. Nata de coco was used as an alternative adsorbent made from cellulose, which was a waste of coconut water in the process of making it easy, inexpensive, and biodegradable. This study aims to determine the effect of contact time and mass of Nata de coco adsorbents on the adsorption of methyl orange. This research method includes three stages were adsorbent preparation, adsorption, and UV-Vis spectrometer analysis. The adsorption process was carried out with contact time variations of 30 and 60 minutes, variations in the mass of the adsorbent 0.05g; 0.1g; and 0.15g. The results showed the optimum adsorption conditions occurred at 60 minutes of contact time and an adsorbent mass of 0.15g with an adsorption efficiency of 44.66% and an adsorption capacity of 0.2066 mg/g.

Front Matter Vol 5 No 1 (Cover, Editorial Board, Preface, Table of Contents) EduChemia EduChemia
EduChemia (Jurnal Kimia dan Pendidikan) Vol 5, No 1 (2020)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

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Editorial Address Department of Chemistry Education - Universitas Sultan Ageng Tirtayasa Address : Jl. Ciwaru Raya No. 25, Sempu, Kota Serang, Banten 42117, Indonesia

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Contact Name
Indah Langitasari

Contact Email
educhemia@untirta.ac.id

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-

Journal Mail Official
educhemia@untirta.ac.id

Editorial Address
Department of Chemistry Education - Universitas Sultan Ageng Tirtayasa Address : Jl. Ciwaru Raya No. 25, Sempu, Kota Serang, Banten 42117, Indonesia

Location
Kab. serang,

Banten

INDONESIA