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All Journal The Journal of Pure and Applied Chemistry Research IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Science and Technology Indonesia Indonesian Journal of Chemistry Communications in Science and Technology Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Jurnal Kreativitas PKM Molekul: Jurnal Ilmiah Kimia JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) International Journal of Sustainable Transportation Technology Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Bulletin of Chemical Reaction Engineering & Catalysis Indonesian Journal of Chemical Science
Addy Rachmat
Department Of Chemistry, Faculty Of Mathematics And Natural Science, Sriwijaya University
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Synthesis and Characterization Composite Fe3O4/Chitosan-PVA/TiO2 for Photocatalytic Degradation of Tetracycline Denada, Laellia; Poedji Loekitowati Hariani; Addy Rachmat
The Journal of Pure and Applied Chemistry Research Vol. 14 No. 3 (2025): Edition September-December 2025
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2025.014.03.7945

Abstract

This research aims to synthesize tetracycline waste which pollutes the environment, can be overcome by a photocatalytic degradation process using a Fe3O4/Chitosan-PVA/TiO2 composite synthesized using the coprecipitation method. The Fe3O4/Chitosan-PVA/TiO2 composite was characterized by X-Ray Diffraction (XRD), Scanning Electron Microscope- Energy Dispersive Spectroscopy (SEM-EDS), Vibrating Sample Magnetometer (VSM), Ultraviolet-Visible Diffuse Reflectance Spectroscopy (UV-Vis DRS) and pHpzc. The crystallite size of 28.29 nm. The morphology of the composite shows a heterogeneous form with the constituent elements being C (7.69%), N (12.78), O (14.88%), Fe (63.33%) and Ti (1.29%). The saturation magnetization value of 64.24 emu/g is superparamagnetic with a band gap value of 1.38 eV and pHpzc at pH 6.8. The degradation process was studied by investigating the influence of several parameters, namely, solution pH, tetracycline concentration and irradiation time. The efficiency of tetracycline degradation by Fe3O4/Chitosan-PVA/TiO2 was 94.85% at pH 2, concentration of 15 mg/L and radiation time of 70 minutes. The results of Total Organic Carbon (TOC) analysis in a 15 mg/L tetracycline solution before degradation were 20.3 mg/L and after degradation were 5.59 mg/L with a percent reduction in carbon content of 72.46%.
Modification of CaO from Scallops (Amusium Pleuronectes) with Fe3O4 and SiO2 for Adsorption of Congo Red and Methylene Blue Dye Sari, Fera Rahma; Purwaningrum, Widia; Rachmat, Addy
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 11, No 1 (2026): February 2026
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v11.i1.26

Abstract

Congo Red and Methylene Blue dye waste from the textile industry needs to be treated before being discharged into water bodies. Adsorption is widely recognized as an effective method of contaminant removal. The use of CaO as an adsorbent has the advantages of high kinetic speed, efficient, low cost, easily accessible, and abundant. To improve the performance of CaO, it is done by compositing CaO with Fe3O4 and SiO2. This study aims to synthesize a CaO/Fe3O4/SiO2 and apply it for the adsorption of Congo red and Methylene blue dyes. The synthesis of CaO/Fe3O4 uses the coprecipitation method and CaO/Fe3O4/SiO2 is synthesized using the Stober method by adding TEOS to CaO/Fe3O4. The results of XRD characterization show that the synthesized CaO, CaO/Fe3O4, and CaO/Fe3O4/SiO2 have the same 2θ angle as the reference diffractogram data. The addition of SiO2 was shown to prevent agglomeration, which was indicated by a decrease in the particle size of CaO/Fe3O4 from 70.07 to 52.42 nm in CaO/Fe3O4/SiO2. % Adsorption efficiency for Congo Red was 86.49% Methylene Blue was 99.12%. The adsorption process of both dyes was spontaneous, following a pseudo-second-order kinetic model. Congo Red adsorption followed the Freundlich isotherm model, while Methylene Blue followed the Langmuir isotherm model.Keywords: CaO/Fe3O4/SiO2, adsorption, Congo red, Methylene blue
Pemberdayaan Masyarakat melalui Pelatihan Pembuatan Salep Herbal Infeksi Kulit dari Ekstrak Daun Kembang bulan di Desa Tanjung Seteko Ferlinahayati, Ferlinahayati; Salni, Salni; Rachmat, Addy; Hermansyah, Hermansyah; Hariani, Poedji Loekitowati
Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Vol. 6 No. 2 (2026): Maret 2026 - Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/altifani.v6i2.1095

Abstract

Kegiatan pengabdian masyarakat ini bertujuan memberikan pelatihan kepada masyarakat, khususnya ibu-ibu dan remaja karang taruna di Desa Tanjung Seteko, Kecamatan Indralaya, Kabupaten Ogan Ilir tentang pembuatan salep herbal dari ekstrak daun Kembang bulan sebagai alternatif pengobatan infeksi kulit. Ekstrak daun Kembang bulan diketahui memiliki kandungan bioaktif yang bersifat antibakteri dan antioksidan. Pelaksanaan kegiatan pengabdian dilakukan melalui tiga tahapan, yaitu penyuluhan, pelatihan pembuatan salep, dan pengunaan untuk pengobatan serta evaluasi kegiatan. Khalayak sasaran sebanyak 30 orang. Secara umum, masyarakat telah memahami pentingnya menjaga kesehatan kulit, namun masih belum mengetahui pemanfaatan daun Kembang bulan sebagai bahan pengobatan alami. Setelah kegiatan, tingkat pemahaman peserta mengenai salep herbal dari ekstrak daun Kembang bulan meningkat dari 16,67% sebelum pretes menjadi 90 % setelah postes. Produk salep yang dihasilkan juga mendapatkan tanggapan positif dari peserta. Keberhasilan kegiatan ini turut meningkatkan kesadaran masyarakat akan pentingnya memanfaatkan bahan alami yang aman dan ramah lingkungan sebagai alternatif pengobatan.
Co-Authors A.M. Ramadhan Adelia, Ory Adhiyanti, Nurmalina Ahmad Fatoni Aldes Lesbani Aldi Herbanu Amelia, Icha Anisa Fitri Amatullah Bakri Rio Rahayu Bijak Riyandi Ahadito Budiman, Rahmadi Dasril Basir Dea Radestia Rahmah Dedi Rohendi Denada, Laellia Desnelli Desnelli Dwi Hawa Yulianti Dwi Hawa Yulianti Edy Herianto Majlan, Edy Herianto Elfita Elfita Eliza Eliza Eliza Eliza Fahma Riyanti Fanani, Muhammad Zainal Fatma Fatma Fatma Fatmawati Fatmawati Ferlinahayati Ferlinahayati Firanda, Dera Okta Handayani Citra Pratiwi Hardi Aji Badarwi Hasanuddin Hasanuddin Hasanudin Hasanudin Hasanudin hasanudin Hasanudin Hasanudin Hasanudin, Hasanudin Hermansyah Hermansyah Hermansyah Julinar Julinar Julinar Julinar Meiliza, Cici Muhammad Said MUHAMMAD SAID Muhammad Said Muhammad Said Muhammad Said Muhammad Said Musifa, Eva Nabila Aprianti Nirwan Syarif Nirwan Syarif Nirwan Syarif Nirwan Syarif, Nirwan Normah Normah, Normah Nurlisa Hidayati Nurlisa Hidayati Nurmalina Adhiyanti Poedji Loekitowati Hariani Poedji Loekitowati Hariani Pratama, Nisa Manora Rahmah, Dea Risfidian Mohadi Risfidian Mohadi Rizki, Widya Twiny Salni Salni Salni Salni Salni Sari, Fera Rahma Sri Suryani Sya'baniah, Nyimas Syabaniah, Nyimas Febrika Syahputra, Rio Aldo Syarif, Nirwan Sya’baniah, Nyimas Febrika Tarmizi Taher Utama, Muhammad Prima Widia Purwaningrum Yulianti, Dwi Yulianti, Dwi Hawa