Development of Basic Chemistry II Textbook Based on Research

Research based on the absence of the development of quality, innovative and integrated Research based on the absence of the development of quality, innovative and integrated Chemistry textbook with the latest research results that are used to broaden student's horizons and increase student creativity. The purpose of this research is to produce basic Chemistry II textbook based on research. This study uses a type of development research using a 4-D model which consists of 4 stages, namely, definition, design, development and dissemination. The subjects of this study were students of the Department of Chemistry Education of IAIN Batusangkar. The data were collected using a questionnaire. The results of textbook based on research validity obtained a percentage of 88.21% with highly valid category. Then, the results of the practicality test obtained a percentage of 76.31% in the practical category and the results of the effectiveness test showed a significant increase in student activities and learning outcomes. With this, it can be concluded that the basic Chemistry II textbook based on research is valid, practical and effective for use in the learning proces

Pengembangan Media Pembelajaran E-Comic Kimia Berbasis Stem (Science, Technology, Engineering, Dan Mathematic) Pada Materi Termokimia Untuk Kelas XI MIPA SMA YDB Lubuk Alung

Penelitian ini didasarkan pada kurangnya media pembelajaran yang dapat membantu siswa dalam kegiatan pembelajaran, sehingga dapat meningkatkan minat dan hasil belajar siswa pada mata pelajaran kimia. Media pembelajaran e-comic kimia berbasis STEM dirasa perlu dikembangkan guna dijadikan media pembelajaran sebagai pegangan yang dapat membantu siswa dalam belajar kimia. Tujuan dari penelitian ini untuk menghasilkan e-comic kimia berbasis STEM pada materi termokimia yang valid dan praktis. Penelitian ini menggunakan metode penelitian 4-D (define, design, develop, dan disseminate). Tetapi pada penelitian ini hanya dilakukan dari tahap pertama sampai tahap ketiga. Hasil penelitian menunjukkan bahwa:1) e-comic kimia berbasis STEM pada materi termokimia sudah memenuhi kriteria valid dengan persentase hasil validasi 85,96%, 2) e-comic kimia berbasis STEM pada materi termokimia memenuhi kriteria praktis dengan hasil angket respon peserta didik 91,34%. Hasil penelitian menunjukkan bahwa e-comic kimia berbasis STEM pada materi termokimia dapat dijadikan sebagai media pembelajaran yang valid dan praktis bagi siswa. &nbsp

Pengembangan E-LKPD Berbantuan Augmented Reality Terintegrasi Nilai Keislaman pada Materi Larutan Elektrolit

Salah satu cara pengintegrasian nilai-nilai religiulitas dalam proses pembelajaran kimia adalah mengembangkan media pembelajaran yang memuat konsep-konsep kimia terintegrasi dengan ayat-ayat Al-Quran untuk menghindari pengdikotomian antara sains dan agama.Tujuan penelitian ini adalah menghasilkan E-LKPD berbantuan Augmented Reality terintegrasi nilai keislaman pada materi larutan elektrolit untuk SMA/MA yang valid dan praktis. Penelitian ini menggunakan Research dan Development dengan model define, design, develop dan deseminate. Instrumen pengumpulan data adalah pedoman wawancara, lembar validasi dan angket praktikalitas. Hasil validitas isi menunjukkam nilai 88,1% dengan kriteria sangat valid, hasil validitas integrasi menunjukkan nilai 93,8% dengan  kriteria sangat valid  dan hasil praktikalitas E-LKPD yaitu 88,0% dengan kriteria sangat praktis. Kesimpulan penelitian ini adalah E-LKPD LKPD berbantuan Augmented Reality terintegrasi nilai keislaman pada materi larutan elektrolit untuk SMA/MA dinyatakan layak dengan kategori sangat valid dan praktis untuk ditindak lanjuti untuk diuji cobakan secara terbatas

english

Most of the teaching materials used during learning are not research-based. To address this issue, this paper deals with a literature review regarding the intent and interpretation of research-based learning. The data were obtained from library sources such as papers and books. The data analysis technique is content analysis, where the content of the collected data is read, recorded, and analyzed in order to obtain a concept. The use of teaching materials that contain research-based learning methods in chemistry learning is considered suitable. The findings of the concept are discussed in depth.    &nbsp

Synthesis of Amorphous Platinum Nanofibers Directly on an ITO Substrate and Its Heterogeneous Catalytic Hydrogenation Characterization

This paper reports a facile, solution-phase approach to synthesizing a one-dimensional amorphous face-centered-cubic (fcc) platinum (a-Pt) nanostructure (nanofibers) directly on an indium–tin oxide (ITO) substrate. The electron microscopy analysis result shows that the a-Pt nanofiber has a diameter and length of approximately 50 nm and 1 μm, respectively, and is grown in high density on the entire surface of the ITO substrate. The X-ray photoelectron spectroscopy analysis result further reveals that the a-Pt nanofibers feature metallic properties with highly reactive surface chemistry, promising novel performance in electrochemistry, catalysis, and sensors. A synergetic interplay between the formic acid reducing agent and the hexamethylenetetramine surfactant in the reduction of Pt ions is assumed as the driving force for the formation of the amorphous phase in the Pt nanostructure. The catalytic properties of a-Pt were examined in the acetone hydrogenation reaction under microwave irradiation. a-Pt shows excellent heterogeneous catalytic properties for converting acetone to isopropyl alcohol with turnover number and frequency as high as 400 and 140 min^–1, respectively. The preparation and formation mechanism of the a-Pt nanofibers will be discussed in detail in this paper