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INDONESIA
Lantanida Journal
Published by Universitas Islam Negeri Ar-Raniry Banda Aceh
ISSN : 23563133     EISSN : 25489062     DOI : -
Core Subject : Science, Education, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Education
Lantanida Journal is an, scientific journal open-access containing results research, literature reviews and recent news on science and technology in the areas of educational learning and learning development. This journal is formed from the initiative of Leaders Chemistry departmen, lecturers, staff, alumni and students of Chemistry Education Department UIN Ar-Raniry Banda Aceh.
Arjuna Subject : -
Articles 193 Documents
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PENGEMBANGAN MEDIA GEOMETRI MOLEKUL MENGGUNAKAN MACROMEDIA FLASH SEBAGAI SOLUSI MEDIA PEMBELAJARAN DARING DI MASA PANDEMI COVID-19 Haris Munandar; Muammar Yulian; Fifi Nopyana Shaliha
Lantanida Journal Vol 9, No 2 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i2.12683

Abstract

ABSTRAK Media pembelajaran merupakan alat, metode, dan teknik yang dapat digunakan dalam rangka mengefektifkan komunikasi dan interaksi antara guru dan peserta didik dalam proses pendidikan dan pembelajaran di sekolah. Berdasarkan hasil observasi di salah satu sekolah yang melaksanakan pembelajaran secara daring pada masa pandemi Covid-19 diperoleh informasi bahwa penggunaan media pembelajaran secara daring sangat dibutuhkan dalam mendukung proses belajar mengajar secara daring, salah satunya adalah pada mata pelajaran kimia. Tujuan dalam penelitian ini adalah untuk mengetahui bagaimana pengembangan media geometri molekul menggunakan macromedia flash sebagai solusi media pembelajaran kimia secara daring di masa pandemi Covid-19. Rancangan penelitian yang digunakan adalah penelitian dan pengembangan atau Research and Development (R&D). Instrumen yang digunakan pada penelitian ini adalah lembar validasi dan lembar angket. Pengumpulan data dilakukan dengan menggunakan lembar validasi dan penyebaran angket respon. Berdasarkan hasil analisis kebutuhan diperoleh informasi bahwa media pembelajaran daring pada materi geometri molekul sangat dibutuhkan untuk mendukung proses pembelajaran secara daring. Hasil validasasi berupa skor persentase validasi yang diperoleh dari validator ahli media yaitu 71,66%, sedangkan hasil persentase validator materi dan bahasa diperoleh 80%. Kedua hasil tersebut menunjukkan kriteria media tersebut layak digunakan dengan revisi minor. Hasil respon guru yang melibatkan 5 orang guru diperoleh skor persentase angket sebesar 85% dengan kriteria baik. Sedangkan hasil respon peserta didik diperoleh skor persentase angket sebesar 90% dengan kriteria sangat baik.ABSTRACT Learning media are tools, methods, and techniques that can be used in order to streamline communication and interaction between teachers and students in the education and learning process in schools. Based on the results of observations in one of the schools that carried out online learning during the Covid-19 pandemic, information was obtained that the use of online learning media was needed to support the online teaching and learning process, one of which was in chemistry subjects. The purpose of this study was to find out how to develop molecular geometry media using macromedia flash as a solution for online chemistry learning media during the Covid-19 pandemic. The research design used is Research and Development (R&D). The instruments used in this study were validation sheets and questionnaire sheets. Data was collected by using validation sheets and distributing response questionnaires. Based on the results of the need’s analysis, information is obtained that online learning media on molecular geometry material is needed to support the online learning process. The validation results are in the form of a validation percentage score obtained from media expert validators, namely 71.66%, while the percentage results of material and language validators are 80%. The two results indicate that the media criteria are suitable for use with minor revisions. The results of the teacher's response involving 5 teachers obtained a questionnaire percentage score of 85% with good criteria. While the results of student responses obtained a questionnaire percentage score of 90% with very good criteria.
KEEFEKTIFAN MANAJEMEN LABORATORIUM KIMIA DI SMA NEGERI 1 TAPAKTUAN ACEH SELATAN Noviza Rizkia; Taslima Taslima
Lantanida Journal Vol 10, No 1 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i1.13374

Abstract

Good facilities, effective and efficient chemical laboratory management must be applied so that chemistry practicum activities can be carried out properly. Previous research has shown that the management of chemical laboratories in several high schools has not been carried out properly, so it is necessary to conduct this study at SMA Negeri 1 Tapaktuan, South Aceh. The purpose of this study was to determine the effectiveness of chemical laboratory management at SMA Negeri 1 Tapaktuan, South Aceh. This research was conducted qualitatively accompanied by descriptive analysis. Subjects in this study; principal, person in charge/head of chemical laboratory, laboratory staff and chemistry teacher. Collecting data by observation, interviews and documentation. Next, the research results are classified into 4 aspects of laboratory management which consist of planning, organizing, implementing and monitoring which are divided into 28 criteria. The results obtained are the management of the chemistry laboratory which is well implemented 75%, less good 10.72% and not good 14.28%. The conclusion of this study is that the chemical laboratory management at SMA Negeri 1 Tapaktuan South Aceh has not been effective because it has not reached 80% of all aspects of chemical laboratory management.
PEMANFAATAN LIMBAH ORGANIK KULIT PISANG AWAK (Musa balbisiana) SEBAGAI BAHAN SEDIAAN SABUN PADAT UNTUK MENANGKAL RADIKAL BEBAS Rosa Mardiana; Yuniati Yuniati; Sasmiati Farach Dita
Lantanida Journal Vol 10, No 1 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i1.13413

Abstract

Indonesia is one of the largest banana producers. Along with the high productivity of bananas, the amount of banana peel waste also increases. When harvesting bananas, the skin, stems and leaves of bananas (about 80%) are removed without further processing. This is lead to the high amount of banana peel waste, so that there is a need for countermeasures for banana peels to have value. The purpose of this research was to utilize organic waste into a product that have value. The extraction method used in this research was maceration. Banana peel extract (Musa balbisiana) is used to make solid soap preparations by heating, then adding oil and reacting with alkaline solution at a temperature of 50˚C, so that a soap base was obtained. The test conducted on solid soap preparations were organoleptic tests, pH tests, foam stability tests, phytochemical screening, and antioxidant tests. The results showed that the solid soap did not change shape and odor, and had a pH that was in accordance with the standards for skin, namely pH 9-11. The antioxidant test results showed that at a concentration of 10 ppm, banana peel extract had a higher percentage of free radical inhibition than Vitamin C, namely 58.54 and 5366 respectively.
EFEKTIFITAS PENGGUNAAN MEDIA PEMBELAJARAN DARING DALAM PEMBELAJARAN KIMIA PADA MASA PANDEMI Nurmalahayati Nurdin; Haris Munandar; Hanifatussyifa Hanifatussyifa; Ulfa Yusriani
Lantanida Journal Vol 10, No 1 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i1.13416

Abstract

This study aims to describe the effectiveness of the chemistry learning process by using online methods, the challenges and the advantages of using media in learning chemistry. This research was conducted at several high schools in Aceh with a sample of 70 people, of which consist 60 students and 10 teachers. Based on the results of the data analysis, it can be concluded that in the time of the pandemic, the use of media online  has signigficanntly increased, but about  35.3% of the respondents mentioned that the use of  media online for teaching chemistry  is not very effective. However, the advantages of using media online in teaching chemistry during the  pandemic Covid-19 are to help avoid the spreading of the virus Covid-19. 
ANALISIS PARAMETER AIR LIMBAH INDUSTRI PENYAMAKAN KULIT SUKAREGANG GARUT Astri Senania; Novi Yanti
Lantanida Journal Vol 10, No 1 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i1.11088

Abstract

The leather tanning industry of Sukanggang Garut is an industry that has the potential to produce wastewater that contains a lot of organic substances. Therefore, it is necessary to conduct an effective test to determine the parameters of wastewater pollution in the leather tanning industry. The purpose of this study was to test the value of water pH, Chemical Oxygen Demand (COD), Biochemical oxygen Demand (BOD), Total Suspended Solid (TSS), and the amount of chromium concentration in the sample taken. The BOD test will be carried out using the Winkler method, the COD test will be carried out using the reflux method and the TSS test will be carried out using the gravimetric method, while the chromium concentration test will use an AAS spectrophotometer and the pH test will be carried out using a pH meter. The test results show that the liquid waste from the tanning industry activity in Sukaregang Garut exceeds the liquid waste threshold for the leather tanning industry. 
STUDI KOMPARASI ADSORPSI TIGA JENIS ZAT WARNA REMAZOL PADA PERMUKAAN KARBON AKTIF Ni Luh Putu Ananda Saraswati; I Made Oka Riawan; Astrid Alvania Rihi
Lantanida Journal Vol 10, No 1 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i1.13878

Abstract

Remazol is a reactive dye that is widely used in the textile industry with functional groups that can be well covalently bonded to textile fibres, but difficult to decompose, carcinogenic, and harmful to the health and ecosystems. This study specifically aims to analyse the adsorption power of activated carbon on three types of Remazol dyes using batch experiment method as an effective way to reduce the concentration of these dyes in textile industry wastewater. Using activated carbon with the same treatment, Remazol Red dye had the best interaction and was adsorbed in the highest amount on the activated carbon surface (125.16 mg/g), followed by Remazol Blue (16.23 mg/g) and finally Remazol Black dye (11.07 mg/g). The three adsorption processes that occur are in accordance with the Langmuir adsorption isotherm model, with color removal percentage of 74.4 % (Remazol Red), 49.5 % (Remazol Blue), and 48.1 % (Remazol Black). These results are in accordance with the structural studies conducted on the three types of Remazol synthetic dyes, in which Remazol Black with the bulkiest structure has the weakest physical interaction with carbon atoms on the activated carbon surface thus absorbed in the least amount on the adsorbent surface.
ANALISIS E-LEARNING READINESS PADA PEMBELAJARAN KIMIA DI SMA NEGERI KOTA BANDA ACEH Muammar Yulian; Chusnur Rahmi; Ade Rida Wahyuni
Lantanida Journal Vol 10, No 1 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i1.14098

Abstract

The Covid-19 pandemic has changed our activities, including activities in the learning process. Previously, the learning process was carried out directly in the classroom, but the pandemic has changed into online learning such as e-learning. The implementation of e-learning in schools should be followed by an analysis of the level of e-learning readiness (ELR). This study aims to determine the readiness level of State Senior High Schools (SMA Negeri) Banda Aceh, namely SMA Negeri 1, SMA Negeri 3 and SMA Negeri 4. The method used in this study was descriptive qualitative with the number of research subjects as many as 94 students and 2 teachers in each school. The instrument used in this study was a questionnaire compiled and validated based on the Aydin & Tasci ELR model. The results showed that the three schools obtained ELR scores respectively, SMA Negeri 1 () = 3.53, SMA Negeri 3 () = 3.54. The score showed that these schools are ready but need a few improvements in applying e-learning at school. Aspects that must be improved are humans, technology, innovation, and development.
ANALISIS PENGEMBANGAN MEDIA DALAM PEMBELAJARAN KIMIA Chusnur Rahmi; Ana Fitria; Vivit Santika; Sri Rahmawati
Lantanida Journal Vol 10, No 1 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i1.13355

Abstract

Media plays an important role in the chemistry learning process. The development of media in chemistry learning can help teachers increase students' knowledge and interest in learning. This study aims to determine the development of media in chemistry learning in terms of the types of media, development methods, and chemical materials. This research uses literature study method. The data analyzed in this study are the results of research from 26 articles on media development in chemistry learning that have been published in national journals. The results showed that in chemistry learning, visual-based media, inquiry-based media, video-based media, application-based media, and interactive media have been developed. Learning media was developed using the Research and Development (R&D) method with Borg and Gall, 3D, 4D, and ADDIE development models. Android-based media is the most popular as a medium for chemistry learning. The ADDIE development model is the most widely used in developing chemistry learning media. The development of learning media accommodates 30.8% of class X chemistry, 46.2% of class XI chemistry, and 23.1% of class XI chemistry. 
VARIASI SUMBER KARBON TERHADAP PRODUKSI BIOSURFAKTAN OLEH BAKTERI HALOFILIK ISOLAT TAMBAK GARAM KAJHU ACEH BESAR Rahmad Rizki Fazli; Latifah Hanum; Mieke Alvionita; Said Ali Akbar
Lantanida Journal Vol 10, No 1 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i1.14108

Abstract

This research has isolated one type of halophilic bacterial strain from the salt pond of Kajhu Village with the code KJ-AB2. This bacterium grew optimally at 10% (w/v) NaCl so it was classified as moderate halophilic bacteria. Several types of halophilic bacteria are known to produce biosurfactants. Biosurfactants are surface active agents that are widely used in several pharmaceutical, food dan petroleum industries. The production of biosurfactants is strongly influenced by the type of carbon source used for bacterial growth. Olive oil, palm oil, sunflower oil, glucose dan glycerol are types of carbon sources used to see their effect in producing biosurfactants. This isolate growed well on the five carbon sources with an average OD600 2.001±0.293 at 72 hours of fermentation. Biosurfactant production was measured by oil spreading test (OST) every 24 hours until 120 hours of fermentation. The highest OST value was obtained when KJ-AB2 isolate was grown on biosurfactant production media using olive oil, sunflower oil dan palm oil with an average OST value of 5.6±0.6 cm, 4.7±0.6 cm, dan 4.6±0.7 cm, respectively.
ANALISIS KADAR FITOKIMIA DAN ZAT WARNA DALAM SARI BUAH ANGKUNG HIJAU DAN MERAH (Basella alba and Basella rubra) Adnan Nur Avif; Ester Dwi Antari
Lantanida Journal Vol 10, No 2 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i2.14328

Abstract

The phytochemical compounds and pigments of Basella alba and Basella rubra fruits have been investigated. The extract of mature basella fruits is facile by pressing technique. The extract was analyzed for the total phenolics, flavonoids, anthocyanins, and betalains by spectrophotometer methods. Total phenolic, flavonoid and anthocyanin in Basella rubra extract were Basella alba with values of 62,23 (mg/g GA); 46,78 (mg/g QE) and 0,62 mg/g respectively. Betalain concentration in booth extract was not significantly different at 1,03 mg/g. Antioxidant activity in both fruit juices has an IC50 value of 51,62 mg/mL.

Page 13 of 20 | Total Record : 193

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