Pub Date : 2022-12-30DOI: 10.20414/konstan.v7i02.204
Anggun Oktaviana, Lalu Ahmad Didik Meiliyadi, B. Bahtiar
Research has been carried out on the synthesis of river sand-based nanosilica magnetic material to improve water quality by utilizing iron sand taken from four rivers in the Lombok island region as a natural material for the water filtration process, this study aims to determine whether the iron sand nanosilica magnetic material able to improve the quality of well water or not. This study uses an experimental method where iron sand has gone through the coprecipitation process and the water quality parameters measured are temperature, pH and conductivity. The measurement results showed that well water after being mixed with iron sand decreased for temperature and conductivity parameters and increased for pH parameters. Of the three parameters, only one parameter does not meet the water quality standard requirements, namely the pH value before being mixed with iron sand which is below the standard, which is 6.32. However, after the well water was mixed with the four samples of river iron sand, the pH value increased to 7.99, 7.85, 7.75, and 8.00 so that it was able to meet water quality standards for pH parameters.
{"title":"Synthesis of Magnetic Nanosilica Material Based on River Sand to Improve Water Quality","authors":"Anggun Oktaviana, Lalu Ahmad Didik Meiliyadi, B. Bahtiar","doi":"10.20414/konstan.v7i02.204","DOIUrl":"https://doi.org/10.20414/konstan.v7i02.204","url":null,"abstract":"Research has been carried out on the synthesis of river sand-based nanosilica magnetic material to improve water quality by utilizing iron sand taken from four rivers in the Lombok island region as a natural material for the water filtration process, this study aims to determine whether the iron sand nanosilica magnetic material able to improve the quality of well water or not. This study uses an experimental method where iron sand has gone through the coprecipitation process and the water quality parameters measured are temperature, pH and conductivity. The measurement results showed that well water after being mixed with iron sand decreased for temperature and conductivity parameters and increased for pH parameters. Of the three parameters, only one parameter does not meet the water quality standard requirements, namely the pH value before being mixed with iron sand which is below the standard, which is 6.32. However, after the well water was mixed with the four samples of river iron sand, the pH value increased to 7.99, 7.85, 7.75, and 8.00 so that it was able to meet water quality standards for pH parameters.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134497805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-13DOI: 10.20414/konstan.v7i1.200
M. Wahyudi, M. Kafrawi
This study aims to obtain an overview of the science literacy ability of MAN 1 East Lombok students in learning static fluid matter physics. This type of research is quantitative-descriptive research. The instrument used was a static fluid matter science literacy PG question totaling 20 questions. The sample in this study was class XI science three students totaling 34 students. The results showed that the science literacy ability of MAN 1 East Lombok students in learning static fluid matter physics were classified as a high category with an average percentage of 73.08%. While the ability based on competence to identify scientific problems, with an average rate of 90.20% of the type, is very high, in the competence to explain phenomena scientifically, with an average percentage of 70.22% of the high category, while in competence using scientific evidence with an average rate of 58.82% of the standard type.
{"title":"Identification of Science Literacy Ability of MAN 1 East Lombok Students in Learning Static Fluid Matter Physics","authors":"M. Wahyudi, M. Kafrawi","doi":"10.20414/konstan.v7i1.200","DOIUrl":"https://doi.org/10.20414/konstan.v7i1.200","url":null,"abstract":"This study aims to obtain an overview of the science literacy ability of MAN 1 East Lombok students in learning static fluid matter physics. This type of research is quantitative-descriptive research. The instrument used was a static fluid matter science literacy PG question totaling 20 questions. The sample in this study was class XI science three students totaling 34 students. The results showed that the science literacy ability of MAN 1 East Lombok students in learning static fluid matter physics were classified as a high category with an average percentage of 73.08%. While the ability based on competence to identify scientific problems, with an average rate of 90.20% of the type, is very high, in the competence to explain phenomena scientifically, with an average percentage of 70.22% of the high category, while in competence using scientific evidence with an average rate of 58.82% of the standard type.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125106258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.20414/konstan.v7i1.179
N. Ernita
The choice of teaching strategies made by teachers is one of the elements that influence how well students learn. The teacher-centered method causes less meaningful learning for students. Learning is still largely theoretical and infrequently relates what students are taught to their everyday lives. The purpose of this study is to evaluate how well students learn physics utilizing a participatory learning model and critical problem-solving skills. The study used an experimental design (control group pre-test post-test design) involving class VIII SMPN 3 Batukliang, with the research sample being class VIII A students as the experimental class and class VIII B students as the control class. A straightforward random sample method was used for sampling. Learning outcomes determined by testing are used to determine student achievement. A descriptive and statistical analysis of student achievement in two classrooms (experimental and control) was conducted. Average scores for each treatment group are used in the descriptive analysis, whereas variance is questioned in the statistical analysis using the t-test. The effect of the participatory learning model using critical problem-solving techniques (experimental group) was measured by the difference in student achievement when compared to the control group after analysis using a t-test. The t-test findings show that, at the 95 percent confidence level, the t-count value (4.249) is higher than the t-table (1.675). Based on these results, it can be concluded that the participatory learning model using critical problem-solving techniques has a significant impact on increasing students' learning achievement in physics.
{"title":"The Effect of Participatory Learning Models Using Critical Problem Solving Techniques on the Learning Achievements of Physics Students","authors":"N. Ernita","doi":"10.20414/konstan.v7i1.179","DOIUrl":"https://doi.org/10.20414/konstan.v7i1.179","url":null,"abstract":"The choice of teaching strategies made by teachers is one of the elements that influence how well students learn. The teacher-centered method causes less meaningful learning for students. Learning is still largely theoretical and infrequently relates what students are taught to their everyday lives. The purpose of this study is to evaluate how well students learn physics utilizing a participatory learning model and critical problem-solving skills. The study used an experimental design (control group pre-test post-test design) involving class VIII SMPN 3 Batukliang, with the research sample being class VIII A students as the experimental class and class VIII B students as the control class. A straightforward random sample method was used for sampling. Learning outcomes determined by testing are used to determine student achievement. A descriptive and statistical analysis of student achievement in two classrooms (experimental and control) was conducted. Average scores for each treatment group are used in the descriptive analysis, whereas variance is questioned in the statistical analysis using the t-test. The effect of the participatory learning model using critical problem-solving techniques (experimental group) was measured by the difference in student achievement when compared to the control group after analysis using a t-test. The t-test findings show that, at the 95 percent confidence level, the t-count value (4.249) is higher than the t-table (1.675). Based on these results, it can be concluded that the participatory learning model using critical problem-solving techniques has a significant impact on increasing students' learning achievement in physics.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129661961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-02DOI: 10.20414/konstan.v7i1.136
L. Asmin
The structure and thickness of the solar cell device layer have a big impact on how well the solar cell works. There for, the aim of this study was to examine how hydrogenated microcrystalline silicon solar cells’ thickness and device structure affected how well they work. Simulation or modeling of the structure in one dimension (1D) is used for the analysis. MATLAB programming was used to analyze the simulation result. The optical band gap changes due to the influence of the structure, therefore the thickness of the p-, I, and n layers are kept constant at 250 Å, 9000 Å, and 250 Å respectively. The results showed that the maximum performance is obtained at the optical band gap, Eci = 1,39 eV, and the resulting power is 0.063465 Watt. Whereas in the simulation of the effect of the thickness on the i-layer, the optical band gap is set to a constant value of Eci = 1,4 eV, while the thickness of the p-layer and n-layer is set to 250 Å. The results also indicate that the maximum performance is at the i-layer thickness of 9000 Å and the power generated is 0.063364 Watt.
{"title":"Simulation of Solar Cell Device Performance Based on Hydrogenated Microcrystal Silicon (µc-Si:H) With Finite Element Method (FEM)","authors":"L. Asmin","doi":"10.20414/konstan.v7i1.136","DOIUrl":"https://doi.org/10.20414/konstan.v7i1.136","url":null,"abstract":"The structure and thickness of the solar cell device layer have a big impact on how well the solar cell works. There for, the aim of this study was to examine how hydrogenated microcrystalline silicon solar cells’ thickness and device structure affected how well they work. Simulation or modeling of the structure in one dimension (1D) is used for the analysis. MATLAB programming was used to analyze the simulation result. The optical band gap changes due to the influence of the structure, therefore the thickness of the p-, I, and n layers are kept constant at 250 Å, 9000 Å, and 250 Å respectively. The results showed that the maximum performance is obtained at the optical band gap, Eci = 1,39 eV, and the resulting power is 0.063465 Watt. Whereas in the simulation of the effect of the thickness on the i-layer, the optical band gap is set to a constant value of Eci = 1,4 eV, while the thickness of the p-layer and n-layer is set to 250 Å. The results also indicate that the maximum performance is at the i-layer thickness of 9000 Å and the power generated is 0.063364 Watt.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134209157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-17DOI: 10.20414/konstan.v7i1.138
Reza Hesti
Researchers developed the Parallel Electrical Circuit Online Conceptual Survey (SKORLP) instrument into a four-tier diagnostic test. The purpose of the study was as a first step in the development of the SKORLP four-level test format into a diagnostic test instrument on Parallel Electrical Circuit materials. The research method used is a 4D model (Defining, Designing, Developing, and Disseminating). The instrument developed has been tested on 23 students in one of the MTs of South Jakarta. From the results of the study, it was found that the development of SKORLP in the form of a four-tier test allows it to be presented online and has great potential in producing student conception profiles in the parallel electrical circuit material, that is, students who understand the concept of Sound Understanding (SU), understand but partially or Partial Understanding (PU), misconceptions or Misconceptions (MC), do not understand the concept of Parallel Electrical Circuits at all or No Understanding (NU).
{"title":"Development of SKORLP Four Tier Test Form Diagnostic Test Instruments to Identify Conception Profiles of Parallel Electrical Circuits","authors":"Reza Hesti","doi":"10.20414/konstan.v7i1.138","DOIUrl":"https://doi.org/10.20414/konstan.v7i1.138","url":null,"abstract":"Researchers developed the Parallel Electrical Circuit Online Conceptual Survey (SKORLP) instrument into a four-tier diagnostic test. The purpose of the study was as a first step in the development of the SKORLP four-level test format into a diagnostic test instrument on Parallel Electrical Circuit materials. The research method used is a 4D model (Defining, Designing, Developing, and Disseminating). The instrument developed has been tested on 23 students in one of the MTs of South Jakarta. From the results of the study, it was found that the development of SKORLP in the form of a four-tier test allows it to be presented online and has great potential in producing student conception profiles in the parallel electrical circuit material, that is, students who understand the concept of Sound Understanding (SU), understand but partially or Partial Understanding (PU), misconceptions or Misconceptions (MC), do not understand the concept of Parallel Electrical Circuits at all or No Understanding (NU).","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121751835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-17DOI: 10.20414/konstan.v7i1.141
Fitriyah Awaliyah
The purpose of this study was to clarify the relationship between student learning independence and scientific learning outcomes. The method used in this survey is a survey. The population of this survey was class VIII Madrasah Tsanawiyah Negeri in South Jakarta, for a total of 720 students, and the sample size of this survey was 88 students. Sampling was performed using a combination of clustering, proportional, and random techniques. This survey data collection is in the form of a survey using the Likert scale model that respondents need to fill out and a data analysis using the SPSS 20 program. The result is a value of Sig = 0.000 < 0.05 and tcount = 3.727, H0 is discarded. This means that student learning independence is actively associated with scientific learning outcomes.
{"title":"Survey of the Relationship Between Student Learning Independence and Scientific Learning Outcomes Islamic Junior High School (Madrasah Tsanawiyah) in South Jakarta","authors":"Fitriyah Awaliyah","doi":"10.20414/konstan.v7i1.141","DOIUrl":"https://doi.org/10.20414/konstan.v7i1.141","url":null,"abstract":"The purpose of this study was to clarify the relationship between student learning independence and scientific learning outcomes. The method used in this survey is a survey. The population of this survey was class VIII Madrasah Tsanawiyah Negeri in South Jakarta, for a total of 720 students, and the sample size of this survey was 88 students. Sampling was performed using a combination of clustering, proportional, and random techniques. This survey data collection is in the form of a survey using the Likert scale model that respondents need to fill out and a data analysis using the SPSS 20 program. The result is a value of Sig = 0.000 < 0.05 and tcount = 3.727, H0 is discarded. This means that student learning independence is actively associated with scientific learning outcomes.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121156615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-16DOI: 10.20414/konstan.v7i1.110
Firmanilah Kamil, Nurul Aida
Penelitian bertujuan untuk mengetahui hubungan antara keterampilan proses sains dan self efficacy mahasiswa Teknik Sipil pada mata kuliah Mekanika Tanah . Jenis penelitian adalah korelasi dengan melakukan observasi dan pemberian angket. Sampel penelitian terdiri dari 53 mahasiswa Jurusan Teknik Sipil. Instrument terdiri dari angket untuk mengukur self efficacy dan lembar observasi untuk mengukur keterampilan proses sains. Data hasil kedua tes dianalisis dengan korelasi pearson product moment. Hasil penelitian menunjukkan adanya korelasi positif antara keterampilan proses sains dan self efficacy mahasiswa.
{"title":"Science Process Skills and Self-efficacy of Civil Engineering Students","authors":"Firmanilah Kamil, Nurul Aida","doi":"10.20414/konstan.v7i1.110","DOIUrl":"https://doi.org/10.20414/konstan.v7i1.110","url":null,"abstract":"Penelitian bertujuan untuk mengetahui hubungan antara keterampilan proses sains dan self efficacy mahasiswa Teknik Sipil pada mata kuliah Mekanika Tanah . Jenis penelitian adalah korelasi dengan melakukan observasi dan pemberian angket. Sampel penelitian terdiri dari 53 mahasiswa Jurusan Teknik Sipil. Instrument terdiri dari angket untuk mengukur self efficacy dan lembar observasi untuk mengukur keterampilan proses sains. Data hasil kedua tes dianalisis dengan korelasi pearson product moment. Hasil penelitian menunjukkan adanya korelasi positif antara keterampilan proses sains dan self efficacy mahasiswa.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133882366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-15DOI: 10.20414/konstan.v7i1.103
E. Rahmadani, H. Helendra, H. Husna
Research has been done on designing a mini power bank using dragon paste as a source of electrical energy. The voltage and current generated by this dragon paste and power bank are measured using a digital multimeter. Dragon paste is used in series and parallel. The voltage generated by the dragon paste is connected to a DC step up. The use of step-up dc aims to increase the dragon paste voltage so that it can or can charge lithium-ion batteries that have been arranged in parallel using the power bank kit module. Keywords: Dragon Paste, Module Kit, Powerbank
{"title":"Design A Mini Power Bank As A Storage Electrical Energy of Dragon Fruit Stems","authors":"E. Rahmadani, H. Helendra, H. Husna","doi":"10.20414/konstan.v7i1.103","DOIUrl":"https://doi.org/10.20414/konstan.v7i1.103","url":null,"abstract":"Research has been done on designing a mini power bank using dragon paste as a source of electrical energy. The voltage and current generated by this dragon paste and power bank are measured using a digital multimeter. Dragon paste is used in series and parallel. The voltage generated by the dragon paste is connected to a DC step up. The use of step-up dc aims to increase the dragon paste voltage so that it can or can charge lithium-ion batteries that have been arranged in parallel using the power bank kit module. \u0000 \u0000Keywords: Dragon Paste, Module Kit, Powerbank","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128977002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.20414/konstan.v7i01.127
Aisyah Dewi, Lukmanul Hakim, Linda Lia
The purpose of this research is to develop circular motion e-modules using Canva in high school that are valid and practical and have a potential impact on learning outcomes. The research is product oriented with Rowntree. There are three phases in this research, namely planning, development, and evaluation. Evaluation uses Tessmer formative evaluation. The instruments used are walkthroughs, interviews, questionnaires, and tests. This study involved 37 students. The e-module product was declared valid by experts who obtained an average score based on the material aspect 3.67 very valid category, design aspect 3.67 very valid category, language aspect 3.67 very valid category, and media aspect 3.48 very valid category. The e-module product scored an average percentage of 90% in the very practical category at the one to one and 84% in the very practical category at the small group. The field test got an average pretest score of 64.42 in the good category and posttest 91.73 in the the n-gain of 0.74 students in the high category. Thus, the conclusion obtained is that the circular motion e-module product using the Canva is suitable for use in learning.
{"title":"Development of Circular Motion E-Module Using Canva in Physics Subjects in High School","authors":"Aisyah Dewi, Lukmanul Hakim, Linda Lia","doi":"10.20414/konstan.v7i01.127","DOIUrl":"https://doi.org/10.20414/konstan.v7i01.127","url":null,"abstract":"The purpose of this research is to develop circular motion e-modules using Canva in high school that are valid and practical and have a potential impact on learning outcomes. The research is product oriented with Rowntree. There are three phases in this research, namely planning, development, and evaluation. Evaluation uses Tessmer formative evaluation. The instruments used are walkthroughs, interviews, questionnaires, and tests. This study involved 37 students. The e-module product was declared valid by experts who obtained an average score based on the material aspect 3.67 very valid category, design aspect 3.67 very valid category, language aspect 3.67 very valid category, and media aspect 3.48 very valid category. The e-module product scored an average percentage of 90% in the very practical category at the one to one and 84% in the very practical category at the small group. The field test got an average pretest score of 64.42 in the good category and posttest 91.73 in the the n-gain of 0.74 students in the high category. Thus, the conclusion obtained is that the circular motion e-module product using the Canva is suitable for use in learning.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130084951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.20414/konstan.v7i01.149
I. G. N. Y. Handayana, D. W. Kurniawidi, S. Rahayu, Nadila Rahmawati
Pearl clam shell waste can be decomposed as a result of CaO compounds. CaO is a compound that can be applied in various fields such as biomaterials, electronics, agricultural industries, and others, for example as a source of biological calcium which plays a role in the growth and survival of shrimp, lobsters, and fish. This study aims to examine the effect of Calcination Temperature on calcium oxide (CaO) characteristics of pearl clam shells (Pinctada Maxima). The procedures carried out in this study include the preparation of pearl clam shells (pinctada maxima), the formation of Calcium Oxide (CaO) using the calcination method which is then continued with the characterization of the test sample. The CaO characteristics studied include CaO characteristics such as CaO compound content, powder size, powder density, bulk density and porosity. The results of measuring the CaO characteristics of pearl clam shells with variations in calcination temperature get an increase in calcination temperature resulting in the CaO yield value tending to decrease with an increase in CaO levels. Bulk density is not particularly affected by calcination temperature, but powder density tends to increase with temperature increase, whereas, porosity and particle size have smaller values. Interestingly, the values of density and porosity are inversely proportional which is closely related to empty cavities or pores formed as a result of differences in calcination temperature.
{"title":"Characteristics of Calcium Oxide from Pearl Shells (Pinctada Maxima) based on Calcination Te","authors":"I. G. N. Y. Handayana, D. W. Kurniawidi, S. Rahayu, Nadila Rahmawati","doi":"10.20414/konstan.v7i01.149","DOIUrl":"https://doi.org/10.20414/konstan.v7i01.149","url":null,"abstract":"Pearl clam shell waste can be decomposed as a result of CaO compounds. CaO is a compound that can be applied in various fields such as biomaterials, electronics, agricultural industries, and others, for example as a source of biological calcium which plays a role in the growth and survival of shrimp, lobsters, and fish. This study aims to examine the effect of Calcination Temperature on calcium oxide (CaO) characteristics of pearl clam shells (Pinctada Maxima). The procedures carried out in this study include the preparation of pearl clam shells (pinctada maxima), the formation of Calcium Oxide (CaO) using the calcination method which is then continued with the characterization of the test sample. The CaO characteristics studied include CaO characteristics such as CaO compound content, powder size, powder density, bulk density and porosity. The results of measuring the CaO characteristics of pearl clam shells with variations in calcination temperature get an increase in calcination temperature resulting in the CaO yield value tending to decrease with an increase in CaO levels. Bulk density is not particularly affected by calcination temperature, but powder density tends to increase with temperature increase, whereas, porosity and particle size have smaller values. Interestingly, the values of density and porosity are inversely proportional which is closely related to empty cavities or pores formed as a result of differences in calcination temperature.","PeriodicalId":137476,"journal":{"name":"KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117076276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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