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All Journal Reaktor International Journal of Renewable Energy Development JURNAL KIMIA SAINS DAN APLIKASI Urania Jurnal Ilmiah Daur Bahan Bakar Nuklir Indonesian Journal of Mathematics and Natural Sciences Jurnal Inovasi Pendidikan Kimia Sainteknol : Jurnal Sains dan Teknologi Jurnal Zeolit Indonesia Phenomenon : Jurnal Pendidikan MIPA Chemistry in Education Indonesian Journal of Chemical Science Indonesian Journal of Physics and Nuclear Applications Jurnal Penelitian Pendidikan IPA (JPPIPA) ALCHEMY Jurnal Penelitian Kimia IQRO: Journal of Islamic Education Journal of Innovative Science Education International Journal of Active Learning Jurnal Litbang Provinsi Jawa Tengah

- Jumaeri

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Author-ID : 293528

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences

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Congo Red Dye Adsorption using Magnesium Hydroxide from Seawater Bittern Jumaeri Jumaeri; Akhsanun Nadiyya; Agung Tri Prasetya; Woro Sumarni
Jurnal Kimia Sains dan Aplikasi Vol 25, No 6 (2022): Volume 25 Issue 6 Year 2022
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

The study of Mg(OH)2 from seawater bittern as an adsorbent for Congo red (CR) from an aqueous solution has been performed. This study aimed to determine the effect of pH, contact time, and initial CR concentration on CR adsorption by Mg(OH)2. The adsorption kinetics and isotherms of CR on Mg(OH)2 in an aqueous solution were also studied. The optimum adsorption was obtained at pH 8 within 90 minutes of contact time with an adsorption capacity of 46.3 mg/g for an initial CR concentration of 29 mg/L. The adsorption process followed the Freundlich isotherm model with an n value of 2.579 and the pseudo-second-order kinetic model with a k2 value of 0.0021 g mg−1min−1.

Performance of HDTMA-Br-Modified Indonesian Zeolite as a Drug Carrier Candidate for Diclofenac Sodium Khafidhotun Naimah; Harjono Harjono; Jumaeri Jumaeri; Sri Kadarwati
Jurnal Kimia Sains dan Aplikasi Vol 24, No 3 (2021): Volume 24 Issue 3 Year 2021
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Diclofenac sodium is a non-steroidal anti-inflammatory drug with a relatively short release time. This short release time promotes a more frequent drug consumption and could lead to side effects in the stomach, e.g., gastrointestinal disorders, gastrointestinal bleeding, and gastric ulcers. A drug delivery system with a slow-release activity is one of the promising technologies to control the drug amount released to the stomach. A surfactant-modified natural zeolite as a carrier for diclofenac sodium has been used in this study. This study focused on the preparation, characterization, and slow-release performance of HDTMA-modified natural zeolite as a carrier for diclofenac sodium. The zeolite underwent chemical and physical activation, as well as milling prior to use. It was proven that the zeolite used was dominated by mordenite and clinoptilolite with high stability properties towards acid treatments, as indicated by the XRD patterns. A modification of the zeolite surface using HDTMABr was also successfully performed, indicated by the appearance of peaks at wavenumbers of 2923.05 cm-1 and 2853.39 cm-1 (symmetrical and asymmetrical CH2 strains of HDTMA molecules, respectively) in the FTIR spectra. The synthesized HDTMA-modified natural zeolite also showed an excellent surface property such as surface area, pore-volume, and size, as indicated by the BET-BJH isotherms on the nitrogen adsorption. The slow-release performance of the zeolite-based drug delivery system was studied by investigating the adsorption-desorption behavior of HDTMA-modified zeolite towards diclofenac sodium. The HDTMA-modified zeolite adsorbed the diclofenac sodium of 54.01% at a pH of 7.5, the contact time of 60 min, and the initial concentration of 100 ppm. The adsorbed diclofenac sodium of 73.95% could be released from the HDTMA-modified adsorbent for 8 h, mimicking the time length of drug metabolism in the human body.

Effect of Dolomite Addition on Fly Ash Based Ceramic Membrane to Reduce COD and BOD of Liquid Waste Widiya Aprilianti; F. Widhi Mahatmanti; Mohammad Alauhdin; Jumaeri Jumaeri
Jurnal Kimia Sains dan Aplikasi Vol 24, No 7 (2021): Volume 24 Issue 7 Year 2021
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Ceramic membrane technology plays an essential role in separation fields such as wastewater treatment. Fly ash as a membrane material has proven to be very effective for many separation processes, including water and air purification, as well as industrial and environmental resource recovery. This study aims to develop a microfiltration ceramic membrane based on fly ash with the addition of dolomite. The synthesized ceramic membranes were then characterized using XRD, SEM, and TGA. Ceramic membranes are used to reduce COD and BOD levels in tofu industrial wastewater. The results showed that the value of membrane porosity tends to increase with the addition of dolomite 0% (D0) to 30% (D30). The increase in the porosity value in the membrane was followed by a decrease in the average pore size, namely 1.6994 m at D0 and 1.1730 m at D30. The membrane with 30% dolomite composition has the best mechanical properties with a compressive strength of 35.29 MPa and superior thermal resistance. This is very beneficial for the use of membranes in the long term. Meanwhile, the membrane filtration ability and the ability of the membrane to reduce COD and BOD levels of waste increased with the addition of dolomite from 0% to 30%. However, the decrease in COD and BOD was smaller in the membrane with 45% dolomite. D30 membrane can reduce COD 80% and BOD up to 71.44%. D30 membrane is the most effective fly ash and dolomite composition in forming pores on the membrane with the best COD and BOD reduction performance.

Co-Authors Afwah, Apriliani Arifatul Agung Tri Prasetya Agung Tri Prasetya Agung Tri Prasetya Akhsanun Nadiyya Alfawwazi, Abdul Fattah Alighiri, Dante Amique, Iqnatu Nazila Ani Rusilowati Anita Rahayu Annisa, Riska Nurfirda Antonius Tri Widodo Arum Mawar Wati Budhy Kurniawan Cepi Kurniawan Darmadinata, Mariyanti Darmadinata, Mariyanti Darojah, Lia Inarotut Darojah, Lia Inarotut Deni Mustika Deninta Andara Perdana E Kusumastuti, E Edy Cahyono Eko Sri Kunarti Elfrida Ratnawati Ella Kusumastuti Ella Kusumastuti, Ella Endang Susilaningsih Endang Susilaningsih Ersanghono Kusumo, Ersanghono Etty Soesilowati Evalisa Apriliani, Evalisa F Widhi Mahatmanti G, Agnesya Putri Habibah, Febrina Nur Haditya, Ervan Bagus Hakim, Yanuar Hakim, Yanuar Harjito - Harjono Harjono Hastuti, Vidya Dwi Hastuti, Vidya Dwi Holyness Nurdin Singadimedja Isbullah, Isbullah Ismi Inayati, Ismi Istiana, shofa Jayanti, Yeni Fitriana Jayanti, Yeni Fitriana Juari Santosa Kamila, Naila Faza Kasmadi Imam Supardi Khafidhotun Naimah Khasanah, Ni'matul Khasanah, Nimatul Khavilla, Vidya Putri Latifah Latifah Latifah Latifah Lubis, Syafrina Yani Machiril, Dhonirul Machiril, Dhonirul Masrukan Masrukan Megasari, Nofita Megasari, Nofita Mohammad Alauhdin, Mohammad Munazat, Dicky Mutiara Dewi Rukmana, Mutiara Dewi Naila Faza Kamila Nanik Wijayati Ningrum, Ananda Nurmalia Kusuma Ningrum, Lis Setiyo Nino Rinaldi nurfainzani, pratiwi nurfainzani, pratiwi Nurhidayah Nurhidayah Patricia, Amelinda Diana Patricia, Amelinda Diana Pratiwi Dwi Jananti, Pratiwi Dwi Putri, Witha Berlian Qoyyima, Diana Rahayu, Endah Fitriani Rahmawati, Septiani Yuni Resti, Ade Riyanto, Ari Fajar Rusiyanto Rusiyanto, Rusiyanto S Mursiti Saadah, Nelis Savitri Savitri, Savitri Setyadji, Much. Sigit Priatmoko Sri Haryani Sri Juari Santosa Sri Juari Santosa Sri Kadarwati Sri Wahyuni SRI WARDANI Sucipto, Lukman Sulistyani, Martin Sulistyaningsih, Triastuti Sunarto, Wisnu Sutarno Sutarno Sutarno Sutarno Triastuti Sulistyaningsih Tunjungsari, Faricha Tunnisa, Tasqia Tunnisa, Tasqia Ulya, Isnaeni Nurul unnes, krisnawati kimia unnes, krisnawati kimia Uswatun Hasanah VH Putranto, VH w. Astuti w. T.P. Lestari Wahyu Rahmawati, Aliftia Wahyu Rahmawati, Aliftia Wahyuni, Promes Sari Wardani, Deta Sri Warlan Sugiyo Wawan Rustyawan Wawan Wawan Widiya Aprilianti Winning Kusuma, Alberto Krishna Ksatria Winning Kusuma, Alberto Krishna Ksatria Wisnu Sunarto Woro Sumarni Zulichatun, Siti - Zulichatun, Siti -

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