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All Journal Jurnal Bahan Alam Terbarukan PROSIDING SEMINAR KIMIA ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry JURNAL ATOMIK Walisongo Journal of Chemistry Jurnal Kumparan Fisika AKM: Aksi Kepada Masyarakat
Husna Syaima
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Universitas Mulawarman, Samarinda 75123, Indonesia
Religion Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Energy Environmental Science Materials Science & Nanotechnology Physics Social Sciences Other

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Journal : JURNAL ATOMIK

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Mini Review: Citrus sinensis Sebagai Bioreduktor Dalam Green Synthesis Nanopartikel Hiyahara, Irfan Ashari; Hindryawati, Noor; Syaima, Husna; Akbar, Muhammad Marion; Duratulhikmah, Nur Fadhilah; Putra, Narundana Perdana; Wulandari, Siti Aprilia; Larasati, Zarra Udyani; Rahayuningsih, Rahayuningsih; Indriani, Isah Waliah
JURNAL ATOMIK Vol 8 No 1 (2023)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Green synthesis is an eco-friendly approach that provides a viable alternative to traditional physical and chemical methods for the production of nanoparticles. This technique employs non-toxic and safe materials, such as plants, microorganisms, algae, bacteria, yeast, and fungi, to generate stable and less toxic nanoparticles. Citrus sinensis, commonly known as sweet orange, is a plant that contains various active compounds. These bioactive compounds can be extracted and used as bioreductants in green synthesis of nanoparticles. This mini review aimed to provide an overview of the current state of research on the utilization of Citrus sinensis as a bioreductant in the production of nanoparticles. A systematic search strategy was employed to identify research articles that met the criteria of discussing green synthesis of nanoparticles with Citrus sinensis as a bioreductant. The nanoparticles produced using Citrus sinensis extract can be either metal nanoparticles or metal oxide nanoparticles. The review highlights the distribution of nanoparticles produced with Citrus sinensis extract, their applications, and the extraction process of Citrus sinensis commonly employed in green synthesis of nanoparticles. Hopefully this review serves as a useful reference for researchers and practitioners who are interested in employing the Citrus sinensis plant as a bioreductant in the green synthesis of nanoparticles.
MINI-REVIEW MENGENAI PEMANFAATAN MATERIAL BERBASIS POLIMER KOORDINASI BERPORI UNTUK PENYIMPANAN HIDROGEN Syaima, Husna; Intifadhah, Sahara Hamas
JURNAL ATOMIK Vol 8 No 2 (2023)
Publisher : Jurusan Kimia FMIPA UNMUL

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This review aims to summarize the various types of Metal-Organic Frameworks (MOFs) and their utilization for hydrogen storage. MOFs have high surface area, flexibility, good stability and tunability, various active sites, and abundant raw materials. These characteristics make MOFs worthy of being considered as a new material in hydrogen storage applications. The potential for using MOFs is very broad because its properties can be determined from the choice of metal and linker. Hydrogen gas storage commonly requires high pressure tanks whereas in liquid form, it requires cryogenic temperatures due to its very low boiling point, the challenge is to synthesize MOF with high hydrogen adsorption capacity under mild conditions. Moreover, it is crucial to learn about the relationship among the pore volume and surface area of MOFs, physisorption of hydrogen, and adsorption condition.
EXPERIMENTAL CHARACTERIZATION TECHNIQUES FOR TRANSITION METAL COMPLEX ANALYSIS Syaima, Husna
JURNAL ATOMIK Vol 9 No 1 (2024)
Publisher : Jurusan Kimia FMIPA UNMUL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ja.v9i1.1368

Abstract

Due to their diverse properties and functionalities, metal complexes are central to various applications spanning chemistry, materials science, and beyond. The elucidation of metal complexes through rigorous analysis is paramount for understanding their structure, properties, and potential applications. This review article provides an overview of the techniques employed for analyzing metal complexes and highlights the importance of instrumental techniques utilized. Techniques such as X-ray crystallography, thermogravimetric analysis (TGA) and differential thermal analysis (DTA), Fourier-transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), and X-ray diffraction (XRD) are discussed in detail, showcasing their roles in probing different aspects of metal complex chemistry. By employing these analytical techniques, researchers can gain valuable insights into metal complexes' composition, structure, thermal stability, and electronic properties, driving innovation and progress in various scientific and technological fields. Continuous advancements in analytical techniques further enhance capabilities in metal complex analysis, paving the way for ground-breaking discoveries and transformative advancements in chemistry and related disciplines.
OPTIMASI PEMBENTUKAN NANOPARTIKEL PERAK DENGAN BIOREDUKTOR DARI EKSTRAK DAUN TAHONGAI ( Kleinhovia hospita Linn.) -, Rahayuningsih; Hindryawati, Noor; Syaima, Husna
JURNAL ATOMIK Vol 9 No 2 (2024)
Publisher : Jurusan Kimia FMIPA UNMUL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ja.v9i2.1397

Abstract

The synthesis of Silver Nanoparticles was carried out by bottom-up method by reducing Ag+ ions to Ag0 using Tahongai leaves (Kleinhovia hospital Linn) which contain secondary metabolites such as alkaloids, flavanoids and phenolics as bioreductors that reduce AgNO3 solution as a precursor. The purpose of this study was to determine whether tahongai leaves can be used as a bioreductor in the synthesis of silver nanoparticles. The concentration variation of tahongai leaf extract bioreductor was 25 %; 50 %; and 75 %. Changes in silver nanoparticles can be marked by changes in the color of the solution and by UV-Vis Spectrophotometer absorption. The results of this study showed a change in color of AgNO3 solution from clear to brownish yellow which indicates the formation of silver nanoparticles, and through UV-Vis Spectrophotometer analysis showed absorption at wavelengths of 420 to 430 which indicates relatively stable nanoparticles so it can be concluded that tahongai leaf extract can be used as a bioreductor for the synthesis of silver nanoparticles.
Pemanfaatan Cangkang Telur Ayam sebagai Sumber CaO: Studi Karakterisasi menggunakan Fourier Transform Infrared Spectroscopy (FTIR Zahra, Marinda Afifatu; Hiyahara, Irfan Ashari; Syaima, Husna
JURNAL ATOMIK Vol 10 No 2 (2025)
Publisher : Jurusan Kimia FMIPA UNMUL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ja.v10i2.1550

Abstract

This research aims to utilize chicken eggshell waste as a raw material for producing calcium oxide (CaO) through a simple calcination method. Eggshells, which are mostly composed of calcium carbonate (CaCO₃), were calcined at 900°C for one hour. The resulting material was then characterized using Fourier Transform Infrared Spectroscopy (FTIR) to identify the presence of specific functional groups. The FTIR results showed a strong absorption peak at 602.14 cm⁻¹, indicating the presence of Ca–O bonds, which confirms the formation of CaO. However, additional peaks associated with hydroxyl (–OH) and carbonate (CO₃²⁻) groups were also detected, suggesting that some residual Ca(OH)₂ and CaCO₃ remained in the sample. This indicates that the calcination process was not fully complete, and further optimization may be necessary to improve the purity of the CaO obtained.
Co-Authors -, Rahayuningsih Ahmad, Atika Aulia Akbar, Muhammad Marion Allo, Veliyana Londong Ananda Fitra Yuda Anisa Nurul Hanifa Arief, M. Syaiful Ariffah Ana Fathonah Astuti, Resky Widya Duratulhikmah, Nur Fadhilah Fausiah, Ulfa Gaanty Pragas Maniam, Gaanty Pragas Ganjar Fadillah Gracia, Amanda Natania Hiyahara, Irfan Ashari Imelya, Marsya Indriani, Isah Waliah Intifadhah, Sahara Hamas Irfan Ashari Hiyahara Larasati, Zarra Udyani Mid, Arsy Aprilia Moh Syaiful Arif Nanang Tri Widodo Nanang Tri Widodo Noor Hindryawati, Noor Pramudita Putri Kusuma Putra, Narundana Perdana Qonita Awliya Hanif Rahayuningsih Rahayuningsih, Rahayuningsih Rahmat Gunawan Ratna Setyaningsih RR Dirgarini Julia Nurlianti Subagyono Salsabila, Aidilia Putri Sardi, Adelia Maritza Sari, Meiyanti Ratna Kumala Sentot Budi Rahardjo Siti Unvaresi Misonia Beladona Sugiyani, Tina Teguh Endah Saraswati Teguh Wirawan, Teguh Wulandari, Oktavia Rahmi Wulandari, Siti Aprilia Zahra, Marinda Afifatu