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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Natur Indonesia Seminar Nasional Teknik Kimia Kejuangan Jurnal Riset Kimia CHEMPUBLISH JOURNAL Science and Technology Indonesia SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi Chimica et Natura Acta Fullerene Journal of Chemistry Jurnal Sains dan Edukasi Sains Bulletin of Chemical Reaction Engineering & Catalysis JURNAL REKAYASA KIMIA & LINGKUNGAN
Tien Setyaningtyas
Jurusan Kimia FMIPA Universitas Jenderal Soedirman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Other

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Journal : SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi

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Rhodamin B Degradation Using Fe-Alginate Gel Beads under UV Light Exposure Andreas, Roy; Setyaningtyas, Tien; Riyani, Kapti
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 10 No 1 (2024): Februari
Publisher : Universitas Sarjanawiyata Tamansiswa

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

Abstract

Heterogeneous Fenton can solve the problem in classic Fenton which is a homogeneous catalyst. Some of the problems with classic Fenton contained sludge production, lost catalysts, and no reuse. This study focuses on the application of Fe-alginate gel beads in the photo-Fenton system using UV light to degrade the dye rhodamine B. After the synthesis step of Fe-alginate gel beads, beads are used to degrade rhodamine B. In addition, the rate of kinetics, mechanism tests, and the reusable tests of Fe-alginate gel beads was also observed. The results confirmed that the degradation value of rhodamine B is 98.8% with the photocatalytic activity is 88.8%. This heterogenous Fenton system fits in first order and •OH is the main radical species to degrade rhodamine B. The reuseable Fe-alginate gel beads were taken out five times, and showed a degradation value of more than 90%. Therefore, it can confirm that the usage of Fe-alginate gel beads as a heterogeneous Fenton may be applied to industrial wastewater processing containing dyes or organic pollutants because this photo-Fenton system is low cost and also be able on visible light.
Photodegradation of Methylene Blue Using ZnO/Perlite under Ultraviolet Light Burhanudin; Setyaningtyas, Tien; Riyani, Kapti
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 10 No 2 (2024): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol10.no2.a17092

Abstract

The disposal of waste in the continuously growing industries leads to pollution caused by pollutants. One of them is liquid waste originating from the textile industry, which contains toxic coloring agents such as methylene blue that are difficult to decompose in the environment. Therefore, an effort is needed to tackle this issue using photocatalysis. A frequently used photocatalyst material is a semiconductor metal oxide like ZnO. However, ZnO semiconductors still have limitations in their applications. To overcome these limitations, ZnO catalysts will be modified with a supporting material like perlite, which is a lightweight and porous material. This study aims to examine the effectiveness of ZnO/Perlite in degrading methylene blue. The ZnO/Perlite composite with a 20% composition shows the highest photocatalytic activity compared to the ZnO/Perlite composites with 10% and 30% compositions. The optimum condition for ZnO/Perlite 20% in degrading methylene blue is achieved with a mass of 0.3 grams, at pH 11, with 2 hours of stirring under ultraviolet light irradiation, resulting in a photocatalytic activity of 47.59% and a combined adsorption and photocatalytic activity of 78.1%.
Penggunaan Komposit Karbon Aktif Termodifikasi Kitosan/Alginat Beads sebagai Adsorben Rhodamin B Anne, Chintya; Setyaningtyas, Tien; Riyani, Kapti
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 11 No 1 (2025): Februari
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol11.no1.a18902

Abstract

Activated carbon is one of the adsorbents that has a large surface, high porosity, and various functional groups on its surface. However, synthesized activated carbon is generally a powder that is difficult to separate from water, so it has low reuse effectiveness. Therefore, it is necessary to modify it to increase its adsorption effectiveness and also increase its adsorption capacity. One of them uses chitosan and activated carbon into beads, as shown in previous studies that reported high adsorption capacity of methylene blue (MB) dye. This modification is relevant to handle the problem of industrial wastewater containing hazardous dyes, such as rhodamine B, which has high stability and is difficult to biodegrade. This study aims to analyze the adsorption process of rhodamine B using KAKatea composite beads focusing on the optimum conditions, isotherm model, and reuse effectiveness. The results showed that the optimum conditions of adsorption were at a contact time of 210 minutes and rhodamine B pH of 3. This adsorption process followed the Freundlich isotherm model with reuse effectiveness reaching 82% for five cycles.
Co-Authors Aghniya, Imtiyazul Ali Djamhuri AMIN FATONI Andreas, Roy Anne, Chintya Anung Riapanitra Arieveali, Heroldinho Badriyah, Ende Hopsah Burhanudin Burhanudin Burhanudin Dian Windy Dwiasi Dwi Kartika Haryadinaru, Ghinatanitha Haqqu Haryanto, Michael Julian Kapti Riyani Luthfia, Adilla Mardiyah Kurniasih Maulana, M Sifal Paramitha, Sylvia Sufyana, Ira Utami, Mardiana Rimba Zusfahair Zusfahair