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All Journal VALENSI Alchemy : Journal of Chemistry JURNAL ISTEK Indonesian Journal of Science and Technology JKPK (Jurnal Kimia dan Pendidikan Kimia) Asean Journal of Science and Engineering (AJSE) Gunung Djati Conference Series al Kimiya : Jurnal Ilmu Kimia dan Terapan
Eko Prabowo Hadisantoso, Eko Prabowo
UIN Sunan Gunung Djati Bandung
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Other

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Sintesis Grafena Oksida (GO) dan GO/ZnO sebagai Fotokatalis untuk Mendekolorisasi Larutan Metilena Biru Eka Febrianti; Sandi Muhamad Arifin; Arief Iyustiana; Eko Prabowo Hadisantoso; Soni Setiadji
Gunung Djati Conference Series Vol. 44 (2024): Seminar Nasional (SEMNAS) Kimia Tahun 2024
Publisher : UIN Sunan Gunung Djati Bandung

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

Abstract

Grafena oksida (GO) dapat diaplikasikan sebagai bahan fotokatalis karena kemampuannya dalam mendekolorisasi beberapa jenis zat pewarna organik seperti metilena biru. Pada penelitian ini, GO disintesis dari grafit menggunakan prosedur modifikasi Hummer’s. Sampel GO yang dihasilkan kemudian dikompositkan dengan larutan Zn(NO3)2.6H2O 0,1 M melalui metode kopresipitasi dengan menambahkan larutan NH4OH untuk mengendapkan sampel komposit GO/ZnO. pH endapan GO/ZnO dinetralkan kemudian dikeringkan pada suhu 70ºC selama 8 jam. Sampel GO dan GO/ZnO dikarakterisasi menggunakan X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) dan Fourier Transform - Infra Red Spectroscopy (FT-IR). Hasil XRD menunjukan bahwa sampel GO dan kompositnya telah terbentuk. Namun GO yang dihasilkan masih belum murni. GO dan GO/ZnO lalu diaplikasikan sebagai fotokatalis dalam mendekolorisasi larutan metilena biru (MB) dengan penyinaran cahaya tampak dan sinar matahari. Kondisi optimum fotokatalitik sampel GO, GO/ZnO dan ZnO dapat mendekolorisasi larutan metilen biru 10 ppm dengan sinar cahaya tampak secara berturut-turut sebesar 98.15%, 97.76%, dan 90.92%, sedangkan dengan sinar matahari sebesar 99.16%, 98.35%, dan 99.01% selama 180 menit penyinaran dengan massa fotokatalis 0,05 gram.
Characterization and Application of Hydroxyapatite From Chicken Egg Shell with Green Template as a Potential Drug Delivery System Irwansyah, Ferli Septi; Nurizal, Abshar Fathur Rochman; Hadisantoso, Eko Prabowo; Zain, Shariffuddin Bin Md
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 2, November 2024
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i2.41699

Abstract

Hydroxyapatite (HAp) is a calcium phosphate biomaterial widely studied in the medical field because of its good biocompatibility properties. This study aims to identify the effect of increasing variations in banana peel template concentration on the characteristics of hydroxyapatite so that it has the potential as a drug delivery system. This study includes the characterization and application of the potential of the hydroxyapatite drug delivery system with the addition of variations in the concentration of green template. Then, hydroxyapatite was characterized using X-ray diffraction (XRD) and a surface area analyzer (SAA). This study's results indicate that adding a banana peel template affects the characteristics of hydroxyapatite. The higher the template concentration, the smaller the crystallite size, pore size, pore volume, and surface area, but the degree of crystallinity is greater. The results showed that the characterization of hydroxyapatite K15% with a crystal size of 34.73 nm, a degree of crystallinity of 89%, a pore size of 7.2178 nm, a surface area of 30.111 m2/g, and a pore volume of 0.1145 cc/g. The results of the study of the potential of the drug delivery system obtained a loading efficiency value of 67% for ibuprofen. However, the ibuprofen release process results at time intervals tend to be unstable.
Characterization and Application of Hydroxyapatite From Chicken Egg Shell with Green Template as a Potential Drug Delivery System Irwansyah, Ferli Septi; Nurizal, Abshar Fathur Rochman; Hadisantoso, Eko Prabowo; Zain, Shariffuddin Bin Md
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 2, November 2024
Publisher : Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i2.41699

Abstract

Hydroxyapatite (HAp) is a calcium phosphate biomaterial widely studied in the medical field because of its good biocompatibility properties. This study aims to identify the effect of increasing variations in banana peel template concentration on the characteristics of hydroxyapatite so that it has the potential as a drug delivery system. This study includes the characterization and application of the potential of the hydroxyapatite drug delivery system with the addition of variations in the concentration of green template. Then, hydroxyapatite was characterized using X-ray diffraction (XRD) and a surface area analyzer (SAA). This study's results indicate that adding a banana peel template affects the characteristics of hydroxyapatite. The higher the template concentration, the smaller the crystallite size, pore size, pore volume, and surface area, but the degree of crystallinity is greater. The results showed that the characterization of hydroxyapatite K15% with a crystal size of 34.73 nm, a degree of crystallinity of 89%, a pore size of 7.2178 nm, a surface area of 30.111 m2/g, and a pore volume of 0.1145 cc/g. The results of the study of the potential of the drug delivery system obtained a loading efficiency value of 67% for ibuprofen. However, the ibuprofen release process results at time intervals tend to be unstable.
The Utilization of Zn-C Battery Waste and Duck Eggshells in the Synthesis of ZnO/HAp Composite as a Photocatalyst for Methylene Blue Waste Treatment Irwansyah, Ferli Septi; Staustan, Nafisah; Hadisantoso, Eko Prabowo; Eddy, Diana Rakhmawati; Noviyanti, Atiek Rostika
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 10, No 2 (2025): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v10i2.106962

Abstract

Synthetic dyes such as methylene blue pose a significant pollution threat due to their chemical stability, resistance to biodegradation, and adverse ecological impacts. Photocatalytic treatment with ZnO is promising; however, particle agglomeration commonly diminishes efficiency. To mitigate this limitation, a ZnO/hydroxyapatite (ZnO/HAp) composite was synthesized from Zn–C battery waste and duck eggshells via a solid-state dispersion method using ZnO: HAp molar ratios of 1:1, 1:3, and 3:1. The materials were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Photocatalytic activity was assessed by degrading 10 mL of 10 ppm methylene blue with 90 mg of photocatalyst under visible-light irradiation for 180 min. XRD confirmed the successful formation of ZnO, HAp, and ZnO/HAp composites with single-phase zincite and hydroxyapatite structures, crystallite sizes of 14.66–25.09 nm, and crystallinity values of 62.66–86.60%. SEM revealed irregular particle morphologies. All composites were photocatalytically active, achieving methylene-blue decolorization of 96.63%, 91.45%, and 81.07%, with the 1:1 composite exhibiting the highest performance. These results indicate that waste-derived ZnO/HAp composites are promising, low-cost photocatalysts for treating organic dye pollutants.
Co-Authors Abdurrohman, Irwan Adam Faroqi, Adam Adi Mulyana Supriatna Adzkya Al Qudsiyyah Burhan Aenur Roidatun Nisa Ahmad Hidayat Ahmad Izzan Aih Mitamimah Alfi Ikhlasul Amal Alfi Ikhlasul Amal Amal, Alfi Ikhlasul Amelia Putri Sugiso Annisaa Siti Zuadah Arief Iyustiana Atiek Rostika Noviyanti AYU ANDINI Ayu Novi Rianty Azman Bin Ma'Amor Citra Fitiriani Kusman Dede Suhendar Dermawan, Muhamad Fahmi Dery Kurnia Halim Diana Rakhmawaty Eddy Diani Kusumaningrum Diba, Riska Farah Diyanthi, Erlinda Widyasmara Dyah Dwi Poerwanto Dyanti Nur'aeni Eddy, Diana Rakhmawati Eka Febrianti ERLINDA WIDYASMARA DIYANTHI Eva Asadah FAHMI SHIHAB Farida Zahara Fatimah Layyinah Ferli Septi Irwansyah FERRY ARIFIADI Fitriyani, Rizka Gina Giftia Azmiana Delilah Hambali, R. Yuli Ahmad Hidayat, Dede Humanita Maharani AR Irmayana Irmayana Isnaeniah, Erni Iu Rusliana KRISTANTO WAHYUDI Kurniawati Kurniawati Mada Sanjaya WS Muhamad Sahlan Arrosyid Nurizal, Abshar Fathur Rochman Nurkholish Hadi Resi Rosanti Rifki Rosyad Riki Juniansyah Risdiana Risdiana RISDIANA RISDIANA, RISDIANA Riska Farah Diba RIZKI ADITYAWAN MAULANA RIZKY BERLIANA WIJAYANTI Robby'atul Adawiyah Hanifah Sandi Muhamad Arifin Shariffuddin Bin Md Zain Soeharti Isnaini Soehartini Isnaini Soni Setiadji Staustan, Nafisah Suryana Suryana Syifa Akmalia Zahra Tety Sudiarti Tsaniyah, Siti Wilamah TURSINA HAJAR Vina Amalia, Vina Wahyudin Darmalaksana Wulan Sumarni Yuna Widayanti Yusuf Rohmatulloh Zain, Shariffuddin Bin Md Zhafarina Adzra