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All Journal Walisongo Journal of Chemistry Analit: Analytical And Environmental Chemistry
Aprilia, Kharisma Citra
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Chemistry Energy Environmental Science

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MALACHITE GREEN TRANSPORT USING POLYMER INCLUSION MEMBRANE METHOD WITH co-EDVB AS CARRIER Aprilia, Kharisma Citra; Safitri , Nurul Ulfa; Rakhman, Khusna Arif; Kiswandono , Agung Abadi
Walisongo Journal of Chemistry Vol. 8 No. 1 (2025): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v8i1.25826

Abstract

Malachite green (MG) is a synthetic dye known for its toxic and carcinogenic properties, necessitating effective removal from aquatic environments. This study investigated the use of a polymer inclusion membrane (PIM) containing co-poly(eugenol-divinylbenzene) (co-EDVB) 2% as a carrier for the selective transport of MG. The membrane was prepared by dissolving co-EDVB, polyvinyl chloride, and dibenzyl ether in tetrahydrofuran (THF). Several parameters were evaluated, including the pH of the source phase, the concentration of nitric acid in the receiving phase, membrane thickness, carrier concentration, transport time, and competitive transport in synthetic wastewater. UV-Visible spectrophotometric analysis at a wavelength of 613 nm revealed that the transport efficiency reached 90.95% under optimal conditions: source phase pH 7, 0.50 M HNO₃ in the receiving phase, membrane thickness T54, and 18 hours of transport. In the presence of competing metal ions such as Pb²⁺ and Cu²⁺, the efficiency decreased to 80.79%, confirming the important role of co-EDVB in enhancing transport selectivity and efficiency.
Analisis Sifat Fisika dan Kimia serta Kandungan Logam Sumber Air Panas di Provinsi Lampung Khairati, Rusyda Maulida; Rinawati, Rinawati; Aprilia, Kharisma Citra; Rahmawati, Anisa; Ningsih, Nurhudawati; Kiswandono, Agung Abadi
Analit : Analytical and Environmental Chemistry Vol. 10, No. 01 April (2025) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v10i01.188

Abstract

Hot springs can be explored for geotourism activities. Geotourism is part of the main field in geology that can contribute to sustainable development. Therefore, hot springs are explored to determine their potential based on their physical and chemical properties. There were three places studied, namely Way Sulfur Kalianda baths, hot springs in Natar, and hot springs in Banjit, Way Kanan. The physical and chemical properties of hot springs measured in situ include total dissolved solids, dissolved oxygen, pH and temperature, while total metal concentrations are determined using ICP-AES. The measured pH value ranged from 5.2-8.1, the average measured temperature ranged from 37-52 °C. The highest and lowest DO values were 9.1 mg/L and 5.5 mg/L respectively. The average TDS and TSS values at the three sample locations were 3620 mg/L and 16.7 mg/L respectively. The highest concentrations of the metals Al, Ba, Cu, K, Ni, Pb are found in Natar, South Lampung, while the highest concentrations of B, Co, Li, Na are in Way Kanan, North Lampung. The highest concentrations of Mg, Mn, Ca are found in Way Sulfur, Kalianda, South Lampung. Concentrations of other metals were generally low and similar at the hot spring sample points studied. With the high content of harmless minerals in hot springs, hot springs can be explored for geotourism activities.
Co-Authors Agung Abadi Kiswandono Anisa Rahmawati Khairati, Rusyda Maulida Khusna Arif Rakhman, Khusna Arif Kiswandono , Agung Abadi Ningsih, Nurhudawati Rinawati Rinawati Safitri , Nurul Ulfa