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INDONESIA
Akta Kimia Indonesia
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 18584586     EISSN : 25493736     DOI : -
Core Subject : Science,
Chemistry
Akta Kimia Indoneisa publishes peer-reviewed open access articles in all areas of chemistry, including: Analytical Chemistry Physical Chemistry Organic Chemistry Inorganic Chemistry Biological Chemistry To submit an article, you need to register first. Please click register in the menus above.
Arjuna Subject : -
Articles 5 Documents
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Search results for , issue "Vol 9, No 2 (2024)" : 5 Documents clear
Pemanfaatan Selulosa dari Limbah Popok Bayi Termodifikasi Asam Stearat sebagai Absorben Hidrofobik untuk Pemisahan Minyak dan Air Pramudita, Dimas; Yuneta, Yuneta; Wulandari, Oktavia Rahmi; Amalia, Tasya; Iqbal, Rendy Muhamad; Hidayat, Nurul; Damsyik, Akhmad; Putra, Riandy
Akta Kimia Indonesia Vol 9, No 2 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v9i2.22157

Abstract

Peningkatan penggunaan popok bayi setiap tahun menyebabkan masalah limbah popok bayi yang tidak dapat terdegradasi secara alami. Limbah ini memiliki potensi untuk dimanfaatkan kembali menjadi material bernilai, seperti selulosa dalam Superabsorbent Polymer (SAP) yang dapat diubah menjadi material hidrofobik untuk mengatasi tumpahan minyak di perairan. Penelitian ini bertujuan untuk memodifikasi permukaan selulosa dari limbah popok bayi menggunakan asam stearat sebagai absorben hidrofobik, melalui tiga tahapan: preparasi, pemisahan selulosa, dan modifikasi dengan asam stearat dengan variasi 5, 6, dan 7 gram asam stearat (V1, V2, V3). Pemisahan selulosa dengan asam nitrat dan asam asetat menghasilkan rendemen sebesar 87%. Water Contact Angle (WCA) dari absorben termodifikasi asam stearat menunjukkan nilai 108,552°, 124,327°, dan 127,980° berturut-turut untuk V1, V2, dan V3, yang berarti material ini terkonfirmasi memiliki sifat hidrofobik. Absorben hidrofobik termodifikasi menunjukkan kapasitas penyerapan 3,129 g/g, 0,523 g/g, 0,329 g/g, dan 0,296 g/g untuk selulosa, V1, V2, dan V3, dengan efisiensi pemisahan masing-masing 0,43%, 0,38%, dan 0,37%, lebih rendah dibandingkan selulosa yang mencapai 1,63%. Namun, konsentrasi minyak yang terserap pada parameter uji oli mesin adalah 59,34%, 60,13%, dan 96,84%, jauh lebih tinggi dibandingkan selulosa yang hanya 7,39%. Variasi yang paling unggul berdasarkan nilai WCA dan konsentrasi minyak yang terserap adalah V3
PENGUJIAN AKTIVITAS ANTIOKSIDAN SHATA DHAUTA GHRITA DENGAN PENCUCIAN MENGGUNAKAN INFUSED WATER DAUN KAYU MANIS BALI Sanjiwani, Ni Made Sukma; Wibawa, Agung Ari Chandra; Rahadi, I Wayan Surya; Mariati, Ni Putu Ayu Mirah; Vinanda, Ketut Adelia; Pradnyandari, I Gusti Ayu Agung Ratih
Akta Kimia Indonesia Vol 9, No 2 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v9i2.19950

Abstract

Shata Dhauta Ghrita (SDG) is a basic medicinal preparation for external use or cream. SDG originally had the definition of Ghrita washed a hundred times with water [14]. This study aims to make Shata Dhauta Ghrita with washing using greentea-scented cinnamon leaf infused water. Shata Dhauta Ghrita with washing using cinnamon leaf infused water with greentea aroma was analyzed for antioxidant activity and antioxidant testing optimization was carried out, namely looking for optimal conditions and results. In this study, infused water was made first, then butter, ghee and shata dhauta ghritanya were made, making shata dhauta ghritanya using washing with cinnamon leaf infused water and flavored with green tea. Testing antioxidant activity with DPPH method: Weighed 25 mg of sample dissolved with a little methanol p.a, then put into a 25 milliliter volumetric flask, the volume is sufficient to indicate the limit and homogenized (1000 µg/ml). 0.5 ml of filtrate was taken and 3.5 ml of 0.1 mM DPPH solution was added in the test tube. The test solution was allowed to stand for 30 minutes at room temperature and dark area then measured the absorbance at the maximum wavelength using UV-Vis spectrophotometer. The antioxidant activity test of shata dhauta ghrita has an IC50 value of 22,445.1 which means it has very strong antioxidant activity. This very strong antioxidant activity is because shata dhauta ghrita has active substances, namely flavonoids, because the washing uses cinnamon leaf infused water. Shata dhauta ghrita has an IC50 value of 22,445.1 which means it has very strong antioxidant activity.
Analisis Furosemid Injeksi 10 mg/mL Dalam Validasi Proses Furosemid Injeksi 10 mg/mL Secara Spektofotometri UV-Vis Trisna, Meyci; Mujiyanti, Apri; Azharman, Zefri; Antara, Nico
Akta Kimia Indonesia Vol 9, No 2 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v9i2.19353

Abstract

Furosemide is a diuretic derivative of anthranilic acid. The diuretic activity of furosemide is mainly by inhibiting the absorption of sodium and chloride. This study aims to validate the production process of 10mg/mL injection furosemide; therefore, it can be known whether the production process has run well and product is suitable for consumption. There are eight parameters in this study including the determination of furosemide concentration in the sample, the results obtained that the concentration is 102.14% which is a qualified number. Furthermore, the analysis of the uniformity of the final mass concentration, with the difference in concentrations obtained meets the requirements, the RSD value is 1.64. This indicates that the mixing process has run well, accordingly it is able to produce a homogeneous product. Furthermore, the determination of volume uniformity, sterility, endotoxins, bioburden, pH and particulates also provides qualified results, hence the production process of the three batches analyzed runs well so as to produce qualified and consistent products.
Green Synthesis of Fe3O4 Nanoparticles Using Pineapple Peel Extract For Adsorption of Rhodamine B Kodarta, Wahyu; Sinaga, July Fitry; Pane, Reza Hotna Uli; Pasaribu, Martali Uli; Ichsan, Ahmad Farizt; Bemis, Restina
Akta Kimia Indonesia Vol 9, No 2 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v9i2.21671

Abstract

AbstractThis research aims to develop an environmentally friendly method for the synthesis of Fe₃O₄ nanoparticles using Tangkit pineapple peel extract with iron sand from the Batanghari River, Jambi, as raw materials. FTIR analysis detected Fe-O metal oxide clusters at a wavenumber of 533 cm⁻¹, confirming the presence of Fe₃O₄. The XRD diffraction pattern according to ICSD reference data number 01-076-0956 shows the highest intensity peak at an angle of 2θ 30.17°; 35.47°; 57.18°; and 62.77° with an average crystal diameter of 19.99 nm. SEM showed irregular particle morphology, while particle size analysis revealed an average particle size of 198 nm. Magnetic properties test using VSM shows that the nanoparticles are superparamagnetic with a saturation magnetization (Ms) of 26.25 emu/g. In the Rhodamine B adsorption test, the highest efficiency was achieved at a mass of 100 mg with a value of 95.21%. The optimum adsorption time occurred at 75 minutes with an efficiency of 98.52%. These results indicate that Fe₃O₄ nanoparticles synthesized via the green synthesis method using Tangkit pineapple peel extract have high potential for application in processing textile dye waste.Keywords: green synthesis, Fe3O4 nanoparticles, bioreductor, environmentally friendly. adsorbent.AbstrakPenelitian ini bertujuan mengembangkan metode ramah lingkungan untuk sintesis nanopartikel Fe₃O₄ menggunakan ekstrak kulit nanas Tangkit dengan pasir besi Sungai Batanghari, Jambi, sebagai bahan baku. Analisis FTIR mendeteksi gugus logam oksida Fe-O pada bilangan gelombang 533 cm⁻¹, mengonfirmasi keberadaan Fe₃O₄. Pola difraksi XRD sesuai data referensi ICSD nomor 01-076-0956 menunjukkan puncak intensitas tertinggi pada sudut 2θ 30,17°; 35,47°; 57,18°; dan 62,77° dengan diameter kristal rata-rata kristal sebesar 19,99 nm. SEM menunjukkan morfologi partikel tidak beraturan, sedangkan analisis ukuran partikel mengungkapkan rata-rata ukuran partikel 141,83 nm. Uji sifat magnetik menggunakan VSM menunjukkan nanopartikel bersifat superparamagnetik dengan magnetisasi saturasi (Ms) sebesar 26,25 emu/g. Pada uji adsorpsi Rhodamin B, efisiensi tertinggi tercapai pada massa 100 mg dengan nilai 95,21%. Waktu adsorpsi optimum terjadi pada 75 menit dengan efisiensi sebesar 98,52%. Hasil ini menunjukkan bahwa nanopartikel Fe₃O₄ yang disintesis melalui metode green synthesis menggunakan ekstrak kulit nanas Tangkit berpotensi tinggi untuk aplikasi dalam pengolahan limbah pewarna tekstil.Kata kunci: green synthesis, nanopartikel Fe3O4, bioreduktor, ramah lingkungan,  adsorben.
PEMBUATAN KARBON AKTIF AMPAS KELAPA DENGAN AKTIVATOR ASAM FOSFAT (H3PO4) UNTUK MENGADSORPSI ION LOGAM BESI (Fe) Prawiranti, Yulizar; Mandasari, Weni; Shofiyah, Sofi S; Febrianty, Irma R; Utami, Naniek T
Akta Kimia Indonesia Vol 9, No 2 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v9i2.22084

Abstract

Peat water contains high iron levels and is reddish-brown in color. Consuming iron in doses above the threshold can endanger health and even lead to sudden death. Additionally, iron pollution can disrupt aquatic ecosystems. Coconut pulp has the potential to adsorb heavy metal iron due to its cellulose, mannan, and galactomannan content. The stages of producing adsorbent from coconut pulp include preparation, carbonization, activation of activated carbon, testing of activated carbon consisting of moisture content, volatile matter content, ash content, and pure carbon content tests, FTIR testing, and determining the % adsorption efficiency of iron (Fe) metal ions and adsorption capacity of iron (Fe) metal ions using Atomic Absorption Spectrophotometry (AAS). Carbonization is carried out at a temperature of 400°C for 2 hours, and activation is performed with 3 N phosphoric acid activator for 24 hours. The FTIR results of coconut pulp activated carbon (CPAC) show a slight increase in the C=O stretching absorption peak and a decrease in almost all absorption peaks such as O-H stretching, C=C aromatic ring, C-H bending, C=O stretching, and =C-H aromatic. A new absorption peak appears in CPAC at the absorption region of 908.47 cm⁻¹, indicating the formation of =C-H aromatic bonds. The efficiency percentage shows that CPAC can adsorb Fe metal ions by 99.16% with an adsorption capacity of 0.22 mg/g, while coconut pulp carbon (CPC) can adsorb Fe metal ions by 34.66% with an adsorption capacity of 0.08 mg/g.  

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