Article Per Year (5 Year)
p-Index From 2021 - 2026
2.998
P-Index
This Author published in this journals
All Journal Journal of Tropical Soils Alotrop Jurnal Pendidikan dan Ilmu Kimia Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Dulang: Jurnal Pengabdian Kepada Masyarakat Andromeda: Jurnal Pengabdian Masyarakat Rafflesia IJIS Edu : Indonesian Journal of Integrated Science Education
I Nyoman Candra
Pendidikan Kimia, Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Social Sciences Other

Published : 24 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 24 Documents
Search

 1   2   3 
PENGENALAN DAN PENGGUNAAN SOFTWARE KIMIA UNTUK SISWA SMAN 2 BENGKULU TENGAH I Nyoman Candra; Elvinawati; Wiwit
Andromeda: Jurnal Pengabdian Masyarakat Rafflesia Vol. 5 No. 2 (2025): ANDROMEDA: Jurnal Pengabdian Masyarakat Rafflesia
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/andromeda.v5i2.45773

Abstract

Chemistry is one of the subjects that is still considered difficult and less interesting by most students, including those at SMAN 2 Bengkulu Tengah. The use of Chemistry Software has become one of the learning media solutions that can help students in learning chemistry. Therefore, an introduction to Chemistry Software was conducted for the students of SMAN 2 Bengkulu Tengah. This activity was carried out through an introduction and demonstration method and took place on September 26, 2025. Based on the results of the satisfaction questionnaire distributed, the majority of participants stated that the implementation of the introduction and use of Chemistry Software was interesting (74%) and very interesting (21%). In addition, the participants felt more motivated to learn chemistry and hoped that similar activities could be held again. Overall, this activity ran smoothly and was enthusiastically participated in by the students. Keywords: Avogadro; IqMol; Computational Chemistry; HyperChem
Biochar From Palm Kernel Shell and Its Application For CU2+ Sorption Candra, I Nyoman; Sari, Irma; Abdullah, Rosazlin; Elvia, Rina; Handayani, Dewi
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 8, No 1 (2026): January 2026
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v8i1.9561

Abstract

Oil palm kernel shells (KS) are a byproduct of oil palm processing that often receives little attention and is treated as waste. Biochar has various applications for example as an adsorbent. This study aims to prepare and characterize biochar from KS and evaluate its effectiveness in adsorbing Cu2+. The biochar (BKS) was prepared by heating KS in a furnace at 500°C for three hours. The resulting material was sieved using a 50-mesh sieve to ensure uniformity. Characterization of BKS showed that it had a surface area of 319.9 m2 g-1, a total pore volume of 0.168 cm3 g-1, and an average pore size of 1.049 nm, classifying it as microporous. Analysis for its functional groups revealed the presence of functional groups with stretching vibrations corresponding to O-H (3400 cm-1), C-H (2920 cm-1), C=O (1700 cm-1), C=C (1432-1690 cm-1), and C-O (1000-1200 cm-1). SEM imaging displayed a clear porous structure with well-defined channels. Adsorption isotherm experiments demonstrated that Cu2+ adsorption data using BKS aligned better with the Freundlich isotherm model than with the Langmuir model. These findings indicate that BKS derived from KS is less effective for removing Cu2+ ions from water compared to other biochars.
Distribution of Soil Organic Carbon along an Elevation Gradient on Kaba Volcano, Bengkulu Province, Indonesia I Nyoman Candra; Denny Parta Wijaya; Rina Elvia
JOURNAL OF TROPICAL SOILS Vol. 31 No. 1: January 2026
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts..v31i1.1-7

Abstract

Climate change is a global issue largely driven by increasing atmospheric carbon dioxide levels. Many studies have focused on reducing CO2 emissions to mitigate its impacts. Volcanic soils are recognized for their high capacity to sequester carbon, second only to deep-sea reservoirs. However, limited research has examined soil organic carbon in volcanic soils on Kaba Volcano, Bengkulu, Indonesia. This study investigated the distribution of soil organic carbon along an elevation gradient on Kaba Volcano. Nine soil samples, both disturbed and undisturbed, were collected at a depth of 10 cm from three elevations: foothill, hillside, and hilltop. Undisturbed samples were taken using a 70-mm core cylinder to determine bulk density, while disturbed samples were collected with a shovel to analyze soil organic carbon, pH, and particle-size distribution. Soil organic carbon was measured using the Walkley–Black method, soil pH with a pH meter in KCl solution, and particle size using wet sieving and the pipette method. Results showed the highest soil organic carbon at the hillside, though not significantly different from the foothill, while the hilltop had the lowest content. Lower organic carbon at the hilltop may be related to drier conditions and reduced vegetation cover.
HUBUNGAN GAYA MENGAJAR GURU DENGAN MOTIVASI BELAJAR SISWA PADA PEMBELAJARAN KIMIA DI KELAS XI MIPA SMA NEGERI 4 KOTA BENGKULU Nailawati; I Nyoman Candra; Wiwit
ALOTROP Vol. 10 No. 1 (2026): Jurnal Penelitian Pendidikan dan Ilmu Kimia
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v10i1.49704

Abstract

Teaching style is one of the important factors that influence student learning motivation in the learning process. This study aims to determine the categories of teaching styles and student learning motivation, as well as the relationship between the two in chemistry learning in class XI MIPA at SMA Negeri 4 Kota Bengkulu. This study used a correlational descriptive method by distributing questionnaires to 220 respondents. The results showed that (1) the teaching style category of teachers in data group A was in the high category with a percentage of 75.15%, and in data group B, it was in the high category with a percentage of 76.67%. Teachers' teaching styles were analyzed based on indicators of voice variation, focus of attention, teacher silence, eye contact, body movements and facial expressions, and position changes. (2) The category of student learning motivation in data group A was in the high category with a percentage of 73.35%, and in data group B, it was in the high category with a percentage of 73.05%. Student learning motivation was analyzed based on indicators of desire and willingness to achieve, encouragement and need to learn, hopes and aspirations, independence in learning, perseverance in learning, and resilience in facing difficulties. (3) There was a significant positive relationship between teaching style and student learning motivation, with a low level of relationship strength in data group A and a moderate level of relationship strength in data group B.
Co-Authors Abdullah, Rosazlin Amrul Bahar Apriliana, Laila Dwi Arsela Eko Listiono Budiyanto Budiyanto Denny Parta Wijaya Dewi Handayani Elvinawati Elvinawati Elvinawati Elvinawati Elvinawati Elvinawati Elvinawati Elvinawati Elvinawati Elvinawati Elvinawati Febriansyah, Muhammad Fikri Ananda Finni Meyori Fitri Esa Madina Hermansyah Amir Hermansyah Amir Hermansyah Amir, Hermansyah Hesti Apriyanti Irma Sari Muzanip Alperi, Muzanip Nabiilah, Laila Nabila, Anggun T. Nailawati Nurhamidah Nurhamidah Rina Elvia, Rina Salastri Rohiat Sugiono Sumpono Sumpono Sura Menda Ginting Susi Juni Yati Theo Kuntara Tiara Laudia Vera Dwi Alfina, Vera Wiwit Wiwit Wiwit Wiwit, Wiwit