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Kaunia: Integration and Interconnection of Islam and Science Journal
Published by Universitas Islam Negeri Sunan Kalijaga Yogyakarta
ISSN : 18295266     EISSN : 29622085     DOI : -
Core Subject : Religion, Science, Education,
Religion Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics
The aim of KAUNIA journal is to publish high-quality articles dedicated to all aspects of the latest outstanding developments in the field of Science, Mathematics, Education, Technology, and Religious Perspective Interconnect-Integration. The journal publishes articles, reviews, and research notes whose content and approach are of interest to a wide range of scholars.
Arjuna Subject : Umum - Umum
Articles 5 Documents
 1 
Search results for , issue "Vol. 18 No. 2 (2022)" : 5 Documents clear
Determination of Gibbs Free Energy in the Compound Formation of Li-P and Li-Fe-O by Pymatgen Anis Yuniati; Syamsul Andry
Kaunia: Integration and Interconnection Islam and Science Journal Vol. 18 No. 2 (2022)
Publisher : Fakultas Sains dan Teknologi UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/kaunia.3554

Abstract

The Gibbs free energy of the compound formation from a phase diagram based on Python Materials Genomic (Pymatgen) and Application Programming Interface (API) Key had been determined. The compounds shown were stable synthesized from the combination of Li-P and Li-Fe-O atoms. This stability was indicated by the value of the Gibbs free energy of the compounds formation obtained from the phase diagram of each atomic combination. The diagram was created from the integration between Python and the database from the Materials Project via an API Key using Pymatgen. From the research conducted for the combination of Li-P atoms, compounds and the Gibbs free energy of formation shown were Li3 P (-0.697 eV/atom), LiP (-0.523 eV/atom), Li3 P7 (-0.36 eV/atom), and LiP7 (-0.159 eV/atom). For Li-Fe-O combination, the compound and the energy were Li5 FeO4 (-2.117 eV/atom), LiFeO2 (-2.072 eV/atom), LiO2 (-2.067 eV/atom), Li2 FeO2 (-1.979 eV/atom), Li2 FeO3 (-1.965 eV/atom), Fe2 O3 (-1.907 eV/atom), Fe3 O4 (-1.858 eV/atom), FeO (-1.728 eV/atom), Li2 O2 (-1.651 eV/atom), and LiO8 (-0.414 eV/atom). The most stable compound from each formation was the compound with the lowest Gibbs energy, i.e Li3 P and Li5 FeO4.
Adsorption and Desorption Metal Cu (II) using Zeolite Synthetic by Bottom Ash Coal Modified Dithizone Yuan Sidarta; Didik Krisdiyanto; Khamidinal Khamidinal
Kaunia: Integration and Interconnection Islam and Science Journal Vol. 18 No. 2 (2022)
Publisher : Fakultas Sains dan Teknologi UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/kaunia.3706

Abstract

Zeolite synthetic and zeolite modified dithizone has been succesfully created by hydrotermal method. The aim of this research is to know the characteristics of zeolite synthetic and zeolite modified dithizone and to know capacity of adsorption and desorption. The effect of various variables, such as pH, concentration of Cu (II), contact time and temperature was investigated using batch process,  characterization zeolite modified dithizone and zeolite synthetic using XRD,  XRF, FTIR and GSA. The result of characterization bottom ash coal by hydrotermal reaction using XRF, be discovered composition Si as many 82,01% and Al 8,54%. product of melting hydrothermally indicate a specific zeolite IR absorption at a wavelength of 300-1250 cm-1. The result XRD showed that be found zeolite-X, zeolite-A, zeolite sodalite and difatogram of dithizone. Zeolite modified dithizone has been succesfully synthesized with a marked presence group of –NH and –SH by using FTIR. Zeolite modified dithizone surface area change from 160,262 m2/g to 69,609 m2/g. The best adsorption metal Cu(II) by zeolite synthetic is pH 7. Kinetics adsorption zeolite synthetic and zeolite modified dithizone follow kinetics of pseudo second orde, with R2 respectively 0,7378 and 0,8689, rate constant of pseudo second orde adsorption at zeolite synthetic  is -0,017 g/mg.min-1 and zeolite modified dithizone -0,013 g/mg.min-1. Isotherm type for both of adsorbent follow Langmuir isotherm. Desorption of metal Cu(II) on zeolite modified dithizone and zeolite synthetic a lot off obtained using HCl at level 47,08% and 41,49% respectively.
Determination of Physicochemical Properties of Some Selected Well and Borehole Water of Nasarawa Area of Zagga Town of Kebbi State, Nigeria Yusuf Sarkingobir; Asiya Gidado Yabo
Kaunia: Integration and Interconnection Islam and Science Journal Vol. 18 No. 2 (2022)
Publisher : Fakultas Sains dan Teknologi UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/kaunia.3741

Abstract

Nowadays, especially in poor resource settings, there is rising infectious and chronic diseases, which most especially can be attributed to poor water quality as one of the causes. Consequently, it becomes imperative to determine the safety of drinking water source. This research is aimed to determine the physicochemical characteristics in well water and borehole water in Nasarawa area of Zagga town of Kebbi state, using standard methods and materials of analytical grade. Results show the pH range of 6.13-6.7, and conductivity is in the range of 3.37-80.1 (ppm). Bicarbonate determined is within the range of 24-84 (ppm). TDS was found in the range of 9-35(ppm), while DO found was 4.7-6.8 (ppm). Chloride was 0.7-11.3 (ppm), and TSS is 7.3-13.3 (ppm). pH, DO, Cl, TDS, and bicarbonate are within the World Health Organization (WHO) permissible limits as found in the findings of this study.
Karakteristik Burung dalam Perspektif Al-Qur’an dan Sains Afrizal El Adzim Syahputra; Abdur Rohman
Kaunia: Integration and Interconnection Islam and Science Journal Vol. 18 No. 2 (2022)
Publisher : Fakultas Sains dan Teknologi UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/kaunia.3756

Abstract

Birds are the animals most frequently mentioned in the Qur’an. However, the birds in the Qur’an have never been studied using a comprehensive scientific approach. This research is expected to be able to add insight and knowledge to Indonesian scholars about the integration of the theme of birds in the Qur’an and science. This study uses a thematic method based on library research by tracing verses about birds in the Qur’an. These verses are then studied using the method of scientific exegesis in which the sources are contemporary commentary books. Then these verses can be integrated with science. Based on the research conducted by the author, the characteristics of birds in the Qur’an can be detailed as follows: First; movement of birds in the air. For thousands of years before, the Qur’an has explained the patterns of bird movement that have been revealed by science today. Second; the behavior of crows and their benefits to humans. Crows have intelligence that is beneficial to human life. Third; nutritional content in salwa birds. The nutritional value of salwa birds can nourish the human body. Fourth; the behavior of the birds bombarding Abraha’s troops. Based on the opinion of contemporary scholars, these birds are interpreted as small organisms that cause various diseases. This organism then develops into a lethal weapon of mass murder, which is popularly known as bioterrorism.
Perbandingan Pembentukan Portofolio Optimal Model Indeks Tunggal Menggunakan Return Aset Bebas Risiko Sukuk dan Sertifikat Bank Indonesia Syariah (SBIS) Sri Istiyarti Uswatun; Jeihan Ali Azhar
Kaunia: Integration and Interconnection Islam and Science Journal Vol. 18 No. 2 (2022)
Publisher : Fakultas Sains dan Teknologi UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/kaunia.3779

Abstract

Portofolio optimal merupakan portofolio dengan kombinasi antara keuntungan yang diharapkan dan risiko terbaik sesuai dengan preferensi investor. Terdapat beberapa model yang digunakan dalam pembentukan portofolio optimal, salah satunya adalah model Indeks Tunggal. Model indeks tunggal didasarkan pada pengamatan bahwa harga dari suatu sekuritas berfluktuasi searah dengan harga pasar. Model indeks tunggal menghitung optimasi perbandingan antara keuntungan yang diharapkan dan risiko portofolio, yang dilambangkan dengan θ . Variabel input yang digunakan untuk membentuk portofolio optimal dengan Model Indeks Tunggal adalah return saham, return pasar dan return aset bebas risiko. Pada penelitian ini akan dibandingkan return aset bebas risiko (risk free rate) menggunakan data dari sukuk dan Sertifikat Bank Indonesia Syariah (SBIS). Hasil portofolio optimal dengan return aset bebas risiko menggunakan data sukuk memberikan keuntungan sebesar 0.0188 setiap minggu dan risiko sebesar 0.0729 setiap minggu. Sedangkanhasil portofolio optimal dengan return aset bebas risiko menggunakan data dari Sertifikat Bank Indonesia Syariah (SBIS) mengahsilkan keuntungan sebesar 0.018561 setiap minggu dan risiko sebesar 0.072293 setiap minggu. Dengan menggunakan ukuran kinerja portofolio optimal indeks sharpe maka portofolio optimal yang terbaik menggunakan return aset bebas risiko Sertifikat Bank Indonesia Syariah (SBIS).

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