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Contact Name
Lalu Rudyat Telly Savalas
Contact Email
telly@unram.ac.id
Phone
+6287878138831
Journal Mail Official
telly@unram.ac.id
Editorial Address
A Building 2nd floor, Faculty of Teaching Training and Education, Mataram University, Jalan Majapahit No 62 Mataram, Mataram 83125, Indonesia
Location
Kota mataram,
Nusa tenggara barat
INDONESIA
Acta Chimica Asiana
Published by Universitas Mataram
ISSN : 2550049x     EISSN : 25500503     DOI : -
Acta Chimica Asiana (online ISSN 2550-0503, print ISSN 2550-049x) is a peer-reviewed, open access journal that publishes high-quality original research articles as well as review articles and short communication in all areas of Chemistry, including Chemical Education and Chemical Engineering. The editors welcome original contributions that have not been published and are not under consideration elsewhere. This journal is published by the Himpunan Kimia Indonesia Cabang Nusa Tenggara (Indonesian Chemical Society, Nusa Tenggara Division). All papers published free of charge
Articles 8 Documents
Search results for , issue "Vol. 6 No. 1 (2023)" : 8 Documents clear
Karakterisasi Asap Cair Hasil Pirolisis Sampah Plastik Kemasan Minyak Goreng Jenis PET dan Other Sebagai Bahan Bakar Alternatif Meisye Massie; I Dewe K Anom; Dj. Tani; Febrian Solikhin
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i1.121

Abstract

Characterization of liquid smoke from the pyrolysis of PET and OTHER plastic packaging waste as an alternative fuel has been carried out. The pyrolysis method produces liquid smoke from PET and OTHER plastic waste at high temperatures. Pyrolysis of PET-type cooking oil packaging plastic waste produces 77.70% liquid smoke, while OTHER type of plastic packaging plastic waste pyrolysis produces approximately 71.65% liquid smoke. The physical properties of liquid smoke resulting from pyrolysis from PET and OTHER plastic cooking oil packaging waste cannot be used directly as fuel oil because some of these physical properties need to meet the SNI fuel quality standards. Identification with GC-MS that liquid smoke from PET-type plastic waste consists of 50 chemical compounds and liquid smoke from OTHER type plastic waste consists of 49 chemical compounds, composed of chemical derivatives of alkanes, alkenes, cycloalkanes, cycloalkenes, and alcohols.
Pulp synthesis using bamboo raw materials through unbleached and bleached processes Sri Hilma Siregar; Syafri Rahmadini; Nasution Hasmalina; Ramadhanti Aulia Rizki; Kafri Eri
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i1.135

Abstract

This study aims to see the potential of bamboo as a new raw material for the Indonesian pulp industry, specifically for the manufacture of pulp products, because in Indonesia, the import value for dissolving is still high, and the raw materials used still use wood plants. This study consists of three stages: the pre-hydrolysis stage using water, the cooking stage with the kraft pulping method, and bleaching using the elemental chlorine-free (ECF) method. Bamboo flakes that run into the pre-hydrolysis process decreased the Kappa Number value of pulp produced, which ranges from 4.63% - 14.52% compared to bamboo flakes that do not run into the pre-hydrolysis process. The brightness increase to 0.844% - 2.96% compared to bamboo flakes that do not run into the process of pre-hydrolysis. For pulp products, the value of Alpha Cellulose obtained is around 89.18% - 90.32%.
Synthesis novel flavone from vanillin R Rahmawati; Baiq Fara Dwirani Sofia
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i1.127

Abstract

Flavone compounds present as secondary metabolites in many plants have beneficial phytochemical activity. Isolation of flavones from various parts of plants has been widely carried out, but the synthesis pathway is another way to obtain higher yields. This research aimed to synthesize flavone compounds from vanillin and 2-hydroxyacetophenone through chalcone intermediates to produce a 74% yield using an iodide catalyst. This new flavone compound has been used as a chemosensor to detect anions
Synthesis and characterization of TiO2-Fe for photocatalytic applications of domestic waste Annisa Rahmadhani; Hasmalina Nasution; Prasetya Prasetya; Novialis Dayumita; Sri Hilma Siregar
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i1.140

Abstract

Wastewater originating from household, industrial, and public places that contains materials can endanger human life and living things and disrupt environmental sustainability. Various methods have recycled domestic wastewater. One is through the photodegradation process utilizing ultraviolet light in the photocatalytic process. Inorganic materials are semiconductors with photocatalyst activity that can absorb photons and simultaneously carry out material interface transformation reactions. The research aimed to determine the effect of adding Fe metal dopants on TiO2 photocatalyst activity in simulated methylene blue and domestic waste treatment. The precursor used was TiO2 P25 Degussa Anatase. Fe dopant was added using the hydrothermal method with variations of 2%, 4%, and 6%. The XRD characterization results show that TiO2 has a high degree of crystallinity, so the overall process of electron diffusion and electron transfer in SSPT is higher to increase its efficiency. SEM-EDX characterization results show that TiO2-Fe particles are scattered in a spherical shape with a size of less than (<)100 nm and tend to agglomerate. Test results of simulated methylene blue (MB) waste with a UV-Vis spectrophotometer at variations in mass, concentration, pH, and time showed that the addition of doping could increase photocatalytic activity and optimum conditions at 6% (F6) were used in the analysis of parameters pH, COD and TSS of domestic wastewater. The pH value increased from 5 to 6, % COD degradation was 59.17%, and TSS was 23.07%. This research showed that TiO2-Fe was effective enough for domestic wastewater treatment.
Free solvent isolation of Fe3O4 from magnetic material iron sand utilizing high-energy ball milling as adsorben remazol turquoise blue G-133 and remazol red RB-133 Muhammad Ramadhan; Fahmiati Fahmiati; Armid Alrum; Mulkiyan La Ode Muhammad Zuhdi
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The extraction of Fe3O4 from iron sand frequently utilizes a highly concentrated HCl solution, which is hazardous to the environment. The high-energy ball milling method of separating Fe3O4 from iron sand might produce Fe3O4 without acids and maintains its magnetic characteristics with a yield of 81.87%. The FTIR results suggest that the Fe3O4 separation procedure with high-energy ball milling was effective in eliminating the silica pick after activation with 2 M NaOH, which was confirmed by SEM-EDS data indicating there was no silica on the material's surface. Fe3O4 was separated, allowing use as an adsorbent to treat textile industry waste such as Remazol Turquoise Blue G-133 and Remazol Red RB-133. The adsorption of Fe3O4 on these two dyes occurred at pH 5, and as adsorbate concentration, contact time, and adsorption temperature of Fe3O4 were raised, the adsorption capacity increased. Remazol Turquoise Blue G-133 and Remazol Red RB-133 have qmax values of 16.75 and 1.43 mg/g, respectively. The isothermal adsorption of Fe3O4 for the two dyes quite follows the Freundlich isothermal with KF values of 1.87 and 0.42 L/g and n values of 2.17 and 1.22, respectively, results suggest that the adsorption process occurs physically and forms a multilayer adsorption surface. These results are supported by data obtained from the adsorption kinetics, which shows that it follows the first-order adsorption kinetics. The dyes thermodynamics also showed positive results for ΔHo and ΔGo, indicating that the process of adsorption was endothermic and not spontaneous, but to the degree of disorder (ΔSo), Remazol Turquoise Blue G-133 outperformed Remazol Red RB-133.
Design of reactor for the production of zinc oxide nanoparticles Anisa Noorlela; Asep Bayu Dani Nandiyanto; Risti Ragadhita; Teguh Kurniawan
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i1.146

Abstract

This study aims to design a continuous stirred tank reactor (CSTR) type reactor to produce zinc oxide (ZnO) nanoparticles. Mass balance calculations were carried out in this study as a benchmark to determine whether the reactor was working properly by knowing the flow of incoming raw materials and the products produced by the reactor. Furthermore, the reactor's design and the stirrer used in the reactor are calculated manually using Microsoft Excel. Based on the calculation results of the reactor design, the reactor volume is 8224.359 liters, with a vessel diameter of 73.298 in, a cylinder height of 166.090 in, and a cylinder thickness of 73.444 in. The top cover of the reactor measures 12.387 inches with a thickness of 0.072 inches, while the bottom cover measures 21.185 inches with a thickness of 0.083 inches, so the overall height of the reactor is 37.552 in. The reactor is equipped with one stirrer with an impeller diameter of 36.722 in, impeller height from the bottom of the tank is 24.433 in, impeller width is 7.344 in, and impeller length is 9.180 in. Turbulent stirring flow conditions with a standard motor power for the stirrer is 6.849 HP. This design will be a reference for building more economical, efficient, and highly demanding reactors.
C-prenylation of 1,3 dihydroxyxanthone: synthesis, characterization and antibacterial activity Emmy Yuanita; Baiq Khaeratul Jannah; Maria Ulfa; Sudirman; Baiq Nila Sari Ningsih; Ni Komang Tri Dharmayani
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i1.149

Abstract

Prenylated 1,3-dihydroxyxanthone has been successfully synthesized using Prenyl bromide and KOH. Characterization of the synthesized compound using Infra Red (IR) and Nuclear Magnetic Resonance (1H-NMR) showed that monosubstituted c-prenylation was occurred at carbon number 2 to form 1,3-dihydroxy-2-prenylxanthone. The synthesis result was a yellow-brown paste with a yield of 43.09%. This prenylated 1,3-dihydroxyxanthone had moderate antibacterial activity against Escherichia coli with an inhibition zone > 5 mm at a concentration of 15%.
Characterization of M-curcumin complexes (M= Cu, Co, Ag) in turmeric rhizome as sensitizer candidates in dye-sensitized solar cell (DSSC) Ainun Jariah; Saprizal Hadisaputra; Agus Abhi Purwoko
Acta Chimica Asiana Vol. 6 No. 1 (2023)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v6i1.152

Abstract

This experimental research aims to characterize the complex compound M-curcumin (M=Cu, Co, Ag) based on turmeric (Curcuma longa Linn) rhizome as a candidate for photosensitizer in solar cells. The basic material used for manufacturing the M-curcumin complex compound in this study was curcumin from turmeric rhizome extract added to Cu2+, Co2+, and Ag+ metal ions. The results of the synthesis of the M-curcumin complex were characterized by FTIR and Uv-Vis spectrophotometers. The FTIR spectrophotometer test showed a curcumin compound in the viscous curcumin extract, characterized by an absorption wave number corresponding to the curcumin compound. In the M-curcumin complex, the bond between the metal and the ligand only appears in the Co-curcumin complex at the absorption number of 498.77 cm -1. The results of the UV-Vis spectrophotometer test showed that the maximum wavelength absorption in curcumin extract was 430 nm (abs = 0.688), Cu-Curcumin complex lmax 300 nm (abs = 2.573), Co-curcumin complex lmax 425 nm (abs = 1.067), and complex Ag-Curcumin lmax 430 nm (abs = 1.36). The UV-Vis and FTIR characterization showed that the Co-curcumin complex has good potential compared to the organic compounds (curcumin) and can be used as an alternative photosensitizer in solar cells

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