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Chemistry and Materials
ISSN : 2828271X     EISSN : 28282310     DOI : https://doi.org/10.56425/cma
Core Subject : Science,
Chemistry and Materials is a peer-reviewed journal published by The Center for Science Innovation (Pusat Inovasi Sains). The journal covers all aspects of Chemistry and Materials including synthesis, characterization, and applications. Theoretical and computational studies are also welcome.
Articles 6 Documents
Search results for , issue "Vol. 1 No. 1 (2022)" : 6 Documents clear
Effect of Temperature and Feeding Time in Zero-Valent Iron (ZVI) Synthesis with Polyphenol Extracts of Kepok Banana Peels Yusmaniar, Yusmaniar; Alfiansyah, Affif; Sutrisno, Mega
Chemistry and Materials Vol. 1 No. 1 (2022)
Publisher : Pusat Inovasi Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (888.859 KB) | DOI: 10.56425/cma.v1i1.16

Abstract

In this research, zero-valent iron (ZVI) was synthesized from kepok banana peels extracts as reducing agent. The fourier transform infrared spectrum showed a clear peak at a wavenumber of 600 cm-1 that could be assigned to Fe-O bond. XRD measurement results prove that ZVI has been successfully formed. The resulting ZVI particles are spherical granules with heterogeneous sizes and close together or agglomerating. Based on the results, it was found that the optimum ratio between FeSO4 and polyphenols for ZVI preparation is 4 : 1. Based on the particle size distribution analysis, it was shown that the optimum feeding temperature and time for ZVI synthesis were 25 oC and 30 minutes, respectively.
Preparation of Polyaniline/Polypyrrole Thin Films as Electrode in Salt Water Dechlorination Maryanti; Yusmaniar
Chemistry and Materials Vol. 1 No. 1 (2022)
Publisher : Pusat Inovasi Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (927.903 KB) | DOI: 10.56425/cma.v1i1.17

Abstract

Chlorine is a chemical element that is widely used in daily life that require for dechlorination process to prevent the environment. One method that can be used to treat chlorine waste is through dechlorination. During the dechlorination process, electrodes that chemically stable properties are used. This study aims to test the dechlorination of polyaniline (PANI), polypyrrole (PPy), and various compositions of PANI/PPy composite. FTIR shows related functional groups found in PANI, PPy, and PANI/PPy. XRD shows that the PANI formed was in the semicrystalline phase, while PPy was in the amorphous phase. The conductivity test shows that the PANI sample has the highest conductancy value compared to the PPy or PANI/PPy samples. PANI/PPy with composition ratio of 75/25 had the highest difference in conductance values compared to other composites. The highest dechlorination efficiency value occurred in PANI at a voltage of 1.8 V, which was 1.9%. Meanwhile, in PANI/PPy composite, the highest dechlorination efficiency value came from PANI/PPy 75/25, which was 0.97%.
Electrodeposition of PANI-NiO as Electrode for Deionization K+ and Cl- Auliya, Annisa; Deswara, Raka; Paristiowati, Maria; Budi, Setia
Chemistry and Materials Vol. 1 No. 1 (2022)
Publisher : Pusat Inovasi Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1072.841 KB) | DOI: 10.56425/cma.v1i1.18

Abstract

This study aims to synthesize thin film of polyaniline-nickel oxide (PANI-NiO) as an electrode in capacitive deionization (CDI) technology. Thin film PANI-NiO were synthesized by electrodeposition method with different applied potentials. The FTIR spectrum and XRD pattern confirmed that PANI-NiO has been successfully synthesized. Based on the SEM-EDX data, PANI-NiO has a tightly stacked granular morphology, which consist of Fe, Cr, S, Ni, O, and C elements. Based on experimental results, the highest capacitance come from PANI-NiO 1.25 V with a value of 475.24 F/g. PANI-NiO 1.25 V also has a small resistance, which is 13.55 Ω. Salt reduction efficiency test for PANI-NiO 1.25 V also shows the highest salt reduction efficiency compared to other electrodes. Owing to its high capacitance, low charge transfer resistance, and high salt reduction capacity, the PANI-NiO prepared at 1.25 V might be a potential material to be developed for the electrolyte deionization application.
The Effects of Aniline Concentration and Deposition Time on Polyaniline Conductance as Substrate in Fe/Ni Electrodeposition Sutrisno, Mega; Paristiowati, Maria; Nailah Fauziyyah
Chemistry and Materials Vol. 1 No. 1 (2022)
Publisher : Pusat Inovasi Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1210.105 KB) | DOI: 10.56425/cma.v1i1.20

Abstract

The research aims to determine the influence of aniline concentration and deposition time on the characteristics of polyaniline prepared using potentiostatic and galvanostatic electrodeposition methods. FTIR characterization data shows the typical peak of polyaniline in the form of the presence of a quinoid functional group at a wavenumber of 1596.16 cm-1. The typical diffraction pattern of polyaniline using XRD was detected at peaks of 2θ 21.1007o and 23.5995o. Polyaniline formed using SEM has a surface morphology that grows in a stacked and irregular manner and has a high conductance value so that it can be used as a substrate in Fe/Ni electrodeposition. The results of the Fe/Ni electrodeposition process when viewed using SEM cause the polyaniline surface morphology to be covered by a Fe/Ni alloy by having an elemental composition from the EDS test data, are iron (Fe) 68.15% and nickel (Ni) 24.83%. Fe/Ni levels from AAS data attached to PANI(pot)-Fe/Ni are 1.1912 ppm and 0.8288 ppm; in PANI(gal)-Fe/Ni are 1.2219 ppm and 0.8392 ppm.
Synthesis and Characterization of High Conductivity Polyaniline Prepared at Room Temperature Budi, Setia; Puspa Rini, Eka; Paristiowati, Maria; Imaduddin, Agung; Syafei, Devi
Chemistry and Materials Vol. 1 No. 1 (2022)
Publisher : Pusat Inovasi Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1139.858 KB) | DOI: 10.56425/cma.v1i1.21

Abstract

In this study, polyaniline was successfully synthesized using an oxidative polymerization method at room temperature. The polymerizations were carried out with and without stirring process under ultraviolet (UV) irradiation. The polyaniline was characterized by FTIR, XRD, SEM, SAA, and Four Point Probe. It is found that UV irradiation and stirring could increase the surface area and conductivity of polyaniline. The surface area obtained for stirred and unstirred polymerization were 37.9 m2/g and 29.0 m2/g, respectively. Moreover, conductivity values for stirred and unstirred polymerization were found as 1.22 S/cm and 1.08 S/cm respectively. This result shows that polyaniline synthesized by stirring treatment obtained uniform morphology, smaller size, greater crystallinity, higher BET surface area, and higher conductivity than that that of without stirring.
Review: Potency and Problem in Development of Self-reliance of Traditional Drug Raw Material in Indonesia Suliasih, Babay Asih; Mun'im, Abdul
Chemistry and Materials Vol. 1 No. 1 (2022)
Publisher : Pusat Inovasi Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (772.573 KB) | DOI: 10.56425/cma.v1i1.22

Abstract

The use of herbs for health purposes has been practiced for thousands of years, long before the discovery of synthetic chemical drugs. Indonesia is widely recognized for its vast biodiversity, boasting approximately 30,000 plant species, equivalent to 75% of the total plant species worldwide, earning it the title of a mega-centre of global biodiversity. This highlights Indonesia's enormous potential in the traditional medicine industry, with the capability to compete on a global scale. However, several challenges hinder the development of traditional raw materials and the production of traditional medicines. These include herbal raw materials that fail to meet quality standards, a non-conducive business climate, limited technological advancements in the extraction and production of raw materials, uneven distribution of third-party laboratories across Indonesia which making it difficult for small and medium-sized industries to access product testing facilities, the exclusion of traditional medicines from the National Health Insurance (JKN) program, and a lack of empirical evidence for many plants with potential as traditional medicines. To address these challenges, intensive support and synergy from the government and legislative bodies are essential to enact policies that accelerate the growth of the traditional medicine industry. Additionally, strong collaboration with business actors, academics, and community organizations is crucial to fostering self-sufficiency in traditional medicine raw materials.

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