cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Adi Darmawan
Contact Email
adidarmawan@live.undip.ac.id
Phone
-
Journal Mail Official
jksa@live.undip.ac.id
Editorial Address
-
Location
Kota semarang,
Jawa tengah
INDONESIA
JURNAL KIMIA SAINS DAN APLIKASI
Published by Universitas Diponegoro
ISSN : 14108917     EISSN : 25979914     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering
urnal Kimia Sains dan Aplikasi (p-ISSN: 1410-8917) and e-ISSN: 2597-9914) is published by Department of Chemistry, Diponegoro University. This journal is published four times per year and publishes research, review and short communication in field of Chemistry.
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 22, No 1 (2019): volume 22 Issue 1 Year 2019" : 5 Documents clear
Sorption Ability of Bentonite Rocks from Yogyakarta to Eliminate the Radiocesium Elements in Solution Heru Sriwahyuni; Budi Setiawan
Jurnal Kimia Sains dan Aplikasi Vol 22, No 1 (2019): volume 22 Issue 1 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2520.669 KB) | DOI: 10.14710/jksa.22.1.17-22

Abstract

This activity was to examine the ability of bentonite minerals from Yogyakarta to absorb the radiocesium contained in the solution. The purposes of the experiment were to determine sorption ability of bentonite mineral from Yogyakarta to absorb radiocesium in solution or groundwater and to enrich the Indonesia bentonite capability database to absorb radiocesium. The bentonite material was planned to be used as a buffer material of the engineered barrier system on the radwaste disposal facility in the future. The contact time, the presence of Na and K ions in the solution, as well as the variable of dissolved CsCl concentration were considered as experiment parameters. The value of Kd was also used as the indicator of radiocesium sorption into the bentonite samples. The experiment results shown that the maximum of Kd value was about 6800 mL/g for sample-1, and the presence of dissolved Na and K ions in the solution could reduce the values of Kd which were 800 and 300 mL/g for sample-1, respectively. Determination of isotherm sorption of radiocesium by bentonite from Yogyakarta was approximated by using linear equation or Freundlich law.
Removal of Methylene Blue Using Used Paper Powder Ghina Labiebah; Gunawan Gunawan; Muhammad Cholid Djunaidi; Abdul Haris; Didik Setiyo Widodo
Jurnal Kimia Sains dan Aplikasi Vol 22, No 1 (2019): volume 22 Issue 1 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2330.384 KB) | DOI: 10.14710/jksa.22.1.23-28

Abstract

Methylene blue removal by adsorption method had been done in batch method using adsorbent of used paper powder. Adsorption parameters covering adsorbent doses, contact times, pH, adsorbate concentrations and adsorption isotherm as well as desorption study of the absorbed methylene blue were evaluated. The results showed the highest adsorption of methylene blue was obtained at an optimum adsorbent dose, for 30 min at pH > 9. The maximum adsorption capacity of 30.77 mg/g was obtained with Langmuir isotherm model. While the effective methylene blue desorption on the used paper powder adsorbent was obtained c.a. 0.27 mg/g at pH 1.
Theoretical Study of the Use of Cyano Acid Derivatives as Electron Acceptors in Cyanidin as Compounds of Dye Sensitized Solar Cells (DSSC) Muhammad Nur Maulidin Mahmud; Sudarlin Sudarlin
Jurnal Kimia Sains dan Aplikasi Vol 22, No 1 (2019): volume 22 Issue 1 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2460.406 KB) | DOI: 10.14710/jksa.22.1.1-6

Abstract

Theoretical study of the use of cyano acid derivatives as electron acceptor groups in cyanidine as dye compounds of dye sensitized solar cells (DSSC) has been carried out based on energy parameters of HOMO-LUMO, LUMO electron localization, spectra, light absorption efficiency, coupling constants, and sensitizer bond length with TiO2. This study aims to determine the effect of cyanoacetic acid, cyanoacrylic benzothiadizole, cyanovinyl acid and cyanosynamic acid as electron acceptors on the photoelectric characteristics of cyanidine and determine the cyanoic acid derivative which can produce cyanidine photoelectric characteristics better based on energy parameters HOMO-LUMO, LUMO electron localization, spectra, light harvesting efficiency, coupling constant (VRP), and bond length of sensitizer with TiO2. This research begun with molecular optimization using DFT and TDDFT method with basis set of 6.311G *. HOMO-LUMO parameters used the same method with analysis technique using ECCE. The LUMO electron localization parameters use the same method, but the analysis technique used ECCE. Spectra using DFT method, using analytical technique using Chemcraft. Parameters of light absorption efficiency using DFT and TDDFT method with calculation technique using existing equations. Coupling constant parameters using the same method, the calculation technique used the energy equation of dye compounds were calculated in the conditions of HOMO, LUMO and TiO2 energy. Parameter length of the sensitizer bond with TiO2 were calculated used DFT method with avogadro analysis technique. Cyanidin cyanoacetate became the best modification based on HOMO LUMO energy parameter -4.569 and -1.01 eV, respesctively. In the electron localization parameter, the best modification was produced in cyanidine cyanoacetate with an electron-centered pattern on the cyanoacetic group. Spectra parameters produced the best modification, cyanoacetic cyanidine with a wavelength of 378.811 nm with osillator strength of 0.633. The light absorption efficiency parameters resulted in the best modification of cyanidin cyanoacetate with a value of 0.767. For parameter of clutch constant, best modification is cyanidin benzothiadizol sianoakrilik with a value -0.269. The best modification on the parameter length of the sensitizer bond with TiO2 was cyanidine cyanoacetate with a bond length of 1.926 Å.
Conversion of Wood Waste to be a Source of Alternative Liquid Fuel Using Low Temperature Pyrolysis Method Gesyth Mutiara Hikhmah Al Ichsan; Khoirina Dwi Nugrahaningtiyas; Dian Maruto Widjonarko; Fitria Rahmawati; Witri Wahyu Lestari
Jurnal Kimia Sains dan Aplikasi Vol 22, No 1 (2019): volume 22 Issue 1 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1837.269 KB) | DOI: 10.14710/jksa.22.1.7-10

Abstract

Conversion of wood waste into bio-oil with low temperature pyrolysis method has been successfully carried out using tubular transport reactors. Pyrolysis carried out at temperatures of 250-300°C without using N2 gas. Bio-oil purified by a fractionation distillation method to remove water and light fraction compounds. The materials obtained from different types of wood waste, namely: Randu wood (Ceiba pentandra), Sengon wood (Paraserianthes falcataria), Coconut wood (Cocos nucifera), Bangkirei wood (Shorea laevis Ridl), Kruing wood (Dipterocarpus) and Meranti wood (Shorea leprosula). Bio-oil products are analyzed for their properties and characteristics, namely the nature of density, acidity, high heat value (HHV), and elements contained in bio-oil such as carbon, nitrogen and sulfur content based on SNI procedures, while bio-oil chemical compositions are investigated using Gas Chromatography Mass Spectroscopy (GC-MS). The maximum yield of bio-oil products occurs at 300°C by 40%. Bio-oil purification by fractional distillation method can produce purity of 16-31% wt. The characterization results of the chemical content of bio-oil showed that bio-oil of methyl formate, 2,6-dimetoxy phenol, 1,2,3 trimethoxy benzene, levoglucosan, 2,4-hexadienedioic acid and 1,2- benzenediol.
Synthesis of Alginate-Chitosan Polyelectrolyte Complex (PEC) Membrane and Its Physical-Mechanical Properties Dhony Hermanto; Mudasir Mudasir; Dwi Siswanta; Bambang Kuswandi
Jurnal Kimia Sains dan Aplikasi Vol 22, No 1 (2019): volume 22 Issue 1 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2514.819 KB) | DOI: 10.14710/jksa.22.1.11-16

Abstract

Synthesis of alginate-chitosan polyelectrolyte membrane and the determination of the physical-mechanical properties were carried out. Alginate-chitosan polyelectrolyte complex membrane can be made by mixing hydrosol alginate and chitosan hydrosol with a ratio of 1: 1 at pH 5.28. Membranes of alginate-chitosan polyelectrolyte complexes produced have physical-mechanical properties including load, elongation and elasticity, water absorption and resistance better than the constituent polymers. The results of FTIR spectroscopy analysis showed that there was an electrostatic interaction between alginate and chitosan through protonated amine groups of chitosan and carboxylic groups from alginate. Surface analyses by SEM showed that morphology of alginate-chitosan polyelectrolyte complex membrane was different with single membrane morphology

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2019 2019


Reset
Filter By Issues
All Issue Vol 27, No 4 (2024): Volume 27 Issue 4 Year 2024 Vol 27, No 3 (2024): Volume 27 Issue 3 Year 2024 Vol 27, No 2 (2024): Volume 27 Issue 2 Year 2024 Vol 27, No 1 (2024): Volume 27 Issue 1 Year 2024 Vol 26, No 12 (2023): Volume 26 Issue 12 Year 2023 Vol 26, No 11 (2023): Volume 26 Issue 11 Year 2023 Vol 26, No 10 (2023): Volume 26 Issue 10 Year 2023 Vol 26, No 9 (2023): Volume 26 Issue 9 Year 2023 Vol 26, No 8 (2023): Volume 26 Issue 8 Year 2023 Vol 26, No 7 (2023): Volume 26 Issue 7 Year 2023 Vol 26, No 6 (2023): Volume 26 Issue 6 Year 2023 Vol 26, No 5 (2023): Volume 26 Issue 5 Year 2023 Vol 26, No 4 (2023): Volume 26 Issue 4 Year 2023 Vol 26, No 3 (2023): Volume 26 Issue 3 Year 2023 Vol 26, No 2 (2023): Volume 26 Issue 2 Year 2023 Vol 26, No 1 (2023): Volume 26 Issue 1 Year 2023 Vol 25, No 12 (2022): Volume 25 Issue 12 Year 2022 Vol 25, No 11 (2022): Volume 25 Issue 11 Year 2022 Vol 25, No 10 (2022): Volume 25 Issue 10 Year 2022 Vol 25, No 9 (2022): Volume 25 Issue 9 Year 2022 Vol 25, No 8 (2022): Volume 25 Issue 8 Year 2022 Vol 25, No 7 (2022): Volume 25 Issue 7 Year 2022 Vol 25, No 6 (2022): Volume 25 Issue 6 Year 2022 Vol 25, No 5 (2022): Volume 25 Issue 5 Year 2022 Vol 25, No 4 (2022): Volume 25 Issue 4 Year 2022 Vol 25, No 3 (2022): Volume 25 Issue 3 Year 2022 Vol 25, No 2 (2022): Volume 25 Issue 2 Year 2022 Vol 25, No 1 (2022): Volume 25 Issue 1 Year 2022 Vol 24, No 7 (2021): Volume 24 Issue 7 Year 2021 Vol 24, No 6 (2021): Volume 24 Issue 6 Year 2021 Vol 24, No 5 (2021): Volume 24 Issue 5 Year 2021 Vol 24, No 4 (2021): Volume 24 Issue 4 Year 2021 Vol 24, No 3 (2021): Volume 24 Issue 3 Year 2021 Vol 24, No 2 (2021): Volume 24 Issue 2 Year 2021 Vol 24, No 1 (2021): Volume 24 Issue 1 Year 2021 Vol 23, No 12 (2020): Volume 23 Issue 12 Year 2020 Vol 23, No 11 (2020): Volume 23 Issue 11 Year 2020 Vol 23, No 10 (2020): Volume 23 Issue 10 Year 2020 Vol 23, No 9 (2020): Volume 23 Issue 9 Year 2020 Vol 23, No 8 (2020): Volume 23 Issue 8 Year 2020 Vol 23, No 7 (2020): Volume 23 Issue 7 Year 2020 Vol 23, No 6 (2020): Volume 23 Issue 6 Year 2020 Vol 23, No 5 (2020): Volume 23 Issue 5 Year 2020 Vol 23, No 4 (2020): Volume 23 Issue 4 Year 2020 Vol 23, No 3 (2020): Volume 23 Issue 3 Year 2020 Vol 23, No 2 (2020): Volume 23 Issue 2 Year 2020 Vol 23, No 1 (2020): Volume 23 Issue 1 Year 2020 Vol 22, No 6 (2019): Volume 22 Issue 6 Year 2019 Vol 22, No 5 (2019): Volume 22 Issue 5 Year 2019 Vol 22, No 4 (2019): Volume 22 Issue 4 Year 2019 Vol 22, No 3 (2019): Volume 22 Issue 3 Year 2019 Vol 22, No 2 (2019): Volume 22 Issue 2 Year 2019 Vol 22, No 1 (2019): volume 22 Issue 1 Year 2019 Vol 21, No 4 (2018): volume 21 Issue 4 Year 2018 Vol 21, No 3 (2018): Volume 21 Issue 3 Year 2018 Vol 21, No 2 (2018): Volume 21 Issue 2 Year 2018 Vol 21, No 1 (2018): Volume 21 Issue 1 Year 2018 Vol 20, No 3 (2017): Volume 20 Issue 3 Year 2017 Vol 20, No 2 (2017): Volume 20 Issue 2 Year 2017 Vol 20, No 1 (2017): Volume 20 Issue 1 Year 2017 Vol 19, No 3 (2016): Volume 19 Issue 3 Year 2016 Vol 19, No 2 (2016): Volume 19 Issue 2 Year 2016 Vol 19, No 1 (2016): Volume 19 Issue 1 Year 2016 Vol 18, No 3 (2015): Volume 18 Issue 3 Year 2015 Vol 18, No 2 (2015): Volume 18 Issue 2 Year 2015 Vol 18, No 1 (2015): Volume 18 Issue 1 Year 2015 Vol 17, No 3 (2014): Volume 17 Issue 3 Year 2014 Vol 17, No 2 (2014): Volume 17 Issue 2 Year 2014 Vol 17, No 1 (2014): Volume 17 Issue 1 Year 2014 Vol 16, No 3 (2013): Volume 16 Issue 3 Year 2013 Vol 16, No 2 (2013): Volume 16 Issue 2 Year 2013 Vol 16, No 1 (2013): Volume 16 Issue 1 Year 2013 Vol 15, No 3 (2012): Volume 15 Issue 3 Year 2012 Vol 15, No 2 (2012): Volume 15 Issue 2 Year 2012 Vol 15, No 1 (2012): Volume 15 Issue 1 Year 2012 Vol 14, No 3 (2011): Volume 14 Issue 3 Year 2011 Vol 14, No 2 (2011): Volume 14 Issue 2 Year 2011 Vol 14, No 1 (2011): Volume 14 issue 1 Year 2011 Vol 13, No 3 (2010): Volume 13 Issue 3 Year 2010 Vol 13, No 2 (2010): Volume 13 Issue 2 Year 2010 Vol 13, No 1 (2010): Volume 13 Issue 1 Year 2010 Vol 12, No 3 (2009): Volume 12 Issue 3 Year 2009 Vol 12, No 2 (2009): Volume 12 Issue 2 Year 2009 Vol 12, No 1 (2009): Volume 12 Issue 1 Year 2009 Vol 11, No 3 (2008): Volume 11 Issue 3 Year 2008 Vol 11, No 2 (2008): Volume 11 Issue 2 Year 2008 Vol 11, No 1 (2008): Volume 11 Issue 1 Year 2008 Vol 10, No 3 (2007): Volume 10 Issue 3 Year 2007 Vol 10, No 2 (2007): Volume 10 Issue 2 Year 2007 Vol 10, No 1 (2007): Volume 10 Issue 1 Year 2007 Vol 9, No 3 (2006): Volume 9 Issue 3 Year 2006 Vol 9, No 2 (2006): Volume 9 Issue 2 Year 2006 Vol 9, No 1 (2006): Volume 9 Issue 1 Year 2006 Vol 8, No 3 (2005): Volume 8 Issue 3 Year 2005 Vol 8, No 2 (2005): Volume 8 Issue 2 Year 2005 Vol 8, No 1 (2005): Volume 8 Issue 1 Year 2005 Vol 7, No 3 (2004): Volume 7 Issue 3 Year 2004 Vol 7, No 2 (2004): Volume 7 Issue 2 Year 2004 Vol 7, No 1 (2004): Volume 7 Issue 1 Year 2004 Vol 6, No 3 (2003): Volume 6 Issue 3 Year 2003 Vol 6, No 2 (2003): Volume 6 Issue 2 Year 2003 Vol 6, No 1 (2003): Volume 6 Issue 1 Year 2003 Vol 5, No 3 (2002): Volume 5 Issue 3 Year 2002 Vol 5, No 2 (2002): Volume 5 Issue 2 Year 2002 Vol 5, No 1 (2002): Volume 5 Issue 1 Year 2002 Vol 3, No 3 (2000): Volume 3 Issue 3 Year 2000 Vol 3, No 2 (2000): Volume 3 Issue 2 Year 2000 Vol 3, No 1 (2000): Volume 3 Issue 1 Year 2000 Vol 2, No 4 (1999): Volume 2 Issue 4 Year 1999 Vol 2, No 3 (1999): Volume 2 Issue 3 Year 1999 Vol 2, No 2 (1999): Volume 2 Issue 2 Year 1999 Vol 2, No 1 (1999): Volume 2 Issue 1 Year 1999 Vol 1, No 1 (1998): Volume 1 Issue 1 Year 1998 More Issue