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INDONESIA
Indonesian Journal of Chemistry and Environment
Published by Universitas Negeri Yogyakarta
ISSN : -     EISSN : 25993186     DOI : 10.21831
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Materials Science & Nanotechnology
Articles are welcome that deal with theoretical analysis, meta-anaysis reviews, and result of research or empirical studies from all aspect of Chemistry and Environment. Reports on new methodologies and comprehensive assessments of existing ones, as well as applications to new types of problems are especially welcome. Experimental papers are expected to be brought into relation with theory, and theoretical papers should be connected to present or future experiments. Manuscripts that apply routine use or minor extensions or modifications of established and/or published experimental and theoretical methodologies are appropriate if they report novel results for an important problem of high interest and/or if they provide significant new insights.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 6 Documents
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Search results for , issue "Vol. 7 No. 1 (2024): JUNE 2024" : 6 Documents clear
Strategies For Handling Plastic Bottle Waste In Gorontalo City Through The Utilization Of Asphalt Concrete Wearing Course (AC-WC) Additives Mayestika, Fidya; Rahim, Sukirman; Lihawa, Fitriyane; Utina, Ramli; Machmud, Marike
Indonesian Journal of Chemistry and Environment Vol. 7 No. 1 (2024): JUNE 2024
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v7i1.67871

Abstract

The amount of plastic waste, especially disposable plastic bottle waste (PET), needs to be utilized. plastic bottle waste is a flexible material that can be used as an alternative additive to the pavement mixture so as to reduce the production of PET disposable bottle waste. So this research needs to be done to find out its utilization. The purpose of this research is to analyze Polyethylen Terephtalate (PET) plastic bottle waste can be used as an additive and analyze the amount of Polyethylen Terephtalate (PET) bottles needed for Asphalt Concrete Wearing Course (AC-WC) pavement mixtures. The method used is an experimental method carried out in two stages. The first stage of Marshall testing without using plastic to find the Optimum Asphalt Content (KAO) with variations of 4%, 4.5%, 5%, 5.5%, 6%, 6.5%. The second stage of Marshall testing using the optimum asphalt content (KAO) obtained from stage one with additional variations of Polyethylen Terephtalate (PET) plastic bottle waste 1%, 2%, 3%, 4%, 5% to get the optimum PET content. The results of stage one Marshall testing obtained an optimum asphalt content of 5.675%, while Marshall in the second stage obtained an optimum PET content of 0.45% equivalent to 0.0026 gr and all types of Marshall parameters met the Bina Marga 2018 revision 2 specifications for mixing Asphalt Concrete Wearning Course (AC-WC). Each production of one ton of Asphalt Concrete Wearning Course (AC-WC) requires 204.3 bottles of Polyethylen Terephtalate (PET) plastic.The amount of plastic waste, especially disposable plastic bottle waste (PET), needs to be utilized. plastic bottle waste is a flexible material that can be used as an alternative additive to the pavement mixture so as to reduce the production of PET disposable bottle waste. So this research needs to be done to find out its utilization. The purpose of this research is to analyze Polyethylen Terephtalate (PET) plastic bottle waste can be used as an additive and analyze the amount of Polyethylen Terephtalate (PET) bottles needed for Asphalt Concrete Wearing Course (AC-WC) pavement mixtures. The method used is an experimental method carried out in two stages. The first stage of Marshall testing without using plastic to find the Optimum Asphalt Content (KAO) with variations of 4%, 4.5%, 5%, 5.5%, 6%, 6.5%. The second stage of Marshall testing using the optimum asphalt content (KAO) obtained from stage one with additional variations of Polyethylen Terephtalate (PET) plastic bottle waste 1%, 2%, 3%, 4%, 5% to get the optimum PET content. The results of stage one Marshall testing obtained an optimum asphalt content of 5.675%, while Marshall in the second stage obtained an optimum PET content of 0.45% equivalent to 0, 0026 gr and all types of Marshall parameters met the Bina Marga 2018 revision 2 specifications for mixing Asphalt Concrete Wearning Course (AC-WC). Each production of one ton of Asphalt Concrete Wearning Course (AC-WC) requires 204.3 bottles of Polyethylen Terephtalate (PET) plastic.
Analysis Noe Bikomi River Water Hardness for Community Sanitation Hygiene Needs Santiari, Made; Priyambodo, Hernur Yoga
Indonesian Journal of Chemistry and Environment Vol. 7 No. 1 (2024): JUNE 2024
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v7i1.73355

Abstract

The Noe Bikomi River water is used by the local community for daily life. The water quality of the Noe Bikomi River needs to be checked, especially the hardness parameters which can cause various consequences to guarantee the community's right to obtain good quality water. This research is quantitative descriptive research. There are 3 test sampling points where water test sampling will be carried out once in September 2023. The test sample (water) is taken from the surface and taken to the laboratory for testing. The hardness value (CaCO3) from the three points ranges from 259-277 mg/L with the high hardness level category. The hardness values at all three points still meet quality standards and are suitable for use for sanitary hygiene purposes.
ASSOCIATION OF SKINKS WITH CRABS IN THE MANGROVE ECOSYSTEM OF TABONGO VILLAGE, DULUPI SUB-DISTRICT, BOALEMO DISTRICT Mustapa, Vinarti; K. Baderan, Dewi Wahyuni; Hamidun, Marini Susanti; Katili, Abubakar Sidik; Lamangantjo, Chairunnisah J; Aydalina, Regina Valentine
Indonesian Journal of Chemistry and Environment Vol. 7 No. 1 (2024): JUNE 2024
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v7i1.70423

Abstract

Mangroves are plants that grow along the coast and have supporting roots. Mangrove ecosystems in addition to protecting the coast from waves and wind are also suitable areas for marine fauna life. One of the fauna found in mangrove ecosystems is the spadefish. Skinks often shelter near the bodies of crabs in order to make it easier for the fish to find food and stay protected from predators. The attachment relationship between these two species growing in the same environment is called association. This study aims to determine the association of silverfish with crabs in the mangrove ecosystem of Tabongo Village, Dulupi District, Boalemo Regency. The study showed that there were 2 species of silverfish and 3 species of crabs, namely Periopthalmus argentilineatus, Periopthalmus malaccensis, Scylla paramamosain, Uca perplexa, and Uca sp. There are 2 types of associations, namely positive associations and negative associations. Positive association with the highest value was found in the pair Periopthalmus argentilineatus with Uca perplexa with a value of 0.37. While the negative association with the lowest value is found in the pair Peripthalmus malaccensis with Uca.
Photodegradation of rhodamine B over natural zeolite/ZnO Utomo, M. Pranjoto; Prodjosantoso, Anti Kolonial; Budiasih, Kun Sri; Yunita, Isti; Triani, Tisia Miftakhul; Rahmawati, Vera Dwi Nur
Indonesian Journal of Chemistry and Environment Vol. 7 No. 1 (2024): JUNE 2024
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v7i1.74067

Abstract

Rhodamine B is dye compound commonly used in the textile industry that consisted of azo compound. Azo compound generally difficult to be degraded. Undegradated azo compound in rhodamine B make it danger for the environment. An effective effort to handle rhodamine B waste must be conducted. Natural zeolite/ZnO is a material that can be used to degrade rhodamine B to be simpler compound based on photodegradation procces. Based on the analysis, the particle size of natural zeolite/ZnO is 16.92709 nm and the band gap energy 2.92 eV. The highest degradation percentage of rhodamine B over natural zeolite/ZnO under UV irradiation is 99.54%.
A novel triazole as a rapidly acetate anion detector: synthesis, spectrophotometric, and TD-DFT studies Makki, Sajjad Qasim; Balakit, Asim
Indonesian Journal of Chemistry and Environment Vol. 7 No. 1 (2024): JUNE 2024
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v7i1.72368

Abstract

A well- Sodium acetate has been used as a food flavor enhancer in the production of cheese, snack food, and pastry products. Hence, accurate quantification of sodium acetate content in food has significant importance within the realm of food chemistry. A Schiff-base reaction was used to produce the sensor 1,2,4 triazole derivative 3. The assessment of sensor 3's response to sodium salts (HSO4-, H2PO4-, NO2-, F-, Br-, Cl-, and AcO-) was conducted through naked-eye detection and subsequently confirmed using UV-vis spectroscopy. The addition of ions to sensor 3 resulted in a spectral change. Notably, only AcO- presented a unique shift in the visible spectra, while no changes were observed for the other anions. Sensor 3 has a notable level of sensitivity, as seen by the naked eye, in detecting acetate anion. The frequent addition of AcO- to a solution of sensor 3 results in an interesting color shift from light yellow to red-orange. The stoichiometry and association constant (Ka) were determined using the Benesi-Hildebrand equation, yielding values of 1:2 and 9.93x109 M-2, respectively. The calculation of the limit of detection (LoD) yielded a result of 6.86 µM. The synthesis of sensor 3 was confirmed using 1HNMR, IR, and UV techniques. The DT-DFT, HOMO, and LUMO values were computed using the Gaussian 09 software. 
The Potential of Carbon Sequestration in the Sanctuary Maleo Hungayono Resort TulaboloPinogu Nani Wartabone Bogani National Park Area Hamid, Ririn Septiani; K Baderan, Dewi Wahyuni; Hamidun, Marini Susanti; Katili, Abubakar Sidik
Indonesian Journal of Chemistry and Environment Vol. 7 No. 1 (2024): JUNE 2024
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v7i1.72451

Abstract

A forest is a unified ecosystem in the form of an expanse of land containing biological natural resources. It is dominated by trees in one natural environment and another so that they cannot be separated. Forests play an important role in maintaining the balance of carbon dioxide in the atmosphere. Their plants can absorb carbon dioxide from the air during the photosynthesis process so they play an important role in maintaining climate balance. The Maleo Hungayono Sanctuary is a place for endemic animals including forests in the Bogani Nani Wartabone National Park area which cannot produce wood, so what will be the strength of the economic value of the TNBNW area is environmental services, including carbon. This research aims to determine the potential for carbon uptake in the Maleo Hungayono Sanctuary, Bogani Nani Wartabone National Park Area. The research results show that the highest biomass value at the research location is at the tree level with a total carbon uptake of 16,588.26 tons/ha; at pole level with total carbon uptake of 722.65 tonnes/ha; at the sapling level with a total carbon uptake of 63.91 tonnes/ha.

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