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All Journal CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Jurnal Kimia (Journal of Chemistry) Alchemy : Journal of Chemistry Pharmaciana: Jurnal Kefarmasian CHEMICA Jurnal Teknik Kimia The Journal of Pure and Applied Chemistry Research Jurnal Kimia dan Kemasan JPM17: Jurnal Pengabdian Masyarakat EduChemia: Jurnal Kimia dan Pendidikan CHEMPUBLISH JOURNAL JPSE (Journal of Physical Science and Engineering) Indonesia Chimica Acta Jurnal Farmasi Sains dan Komunitas ALCHEMY Jurnal Penelitian Kimia JMM (Jurnal Masyarakat Mandiri) Walisongo Journal of Chemistry ALKIMIA : Jurnal Ilmu Kimia dan Terapan Jurnal Pengabdian Al-Ikhlas Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Stannum : Jurnal Sains dan Terapan Kimia Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Journal SAGO Gizi dan Kesehatan Jurnal Kimia dan Kemasan Jurnal Farmasi dan Sains Indonesia (JFSI) Journal of Multidisciplinary Applied Natural Science Sasambo Journal of Pharmacy Bulletin of Community Engagement Al-Khidmah Jurnal Pengabdian Masyarakat JAPI: Jurnal Akses Pengabdian Indonesia Journal of Peat Science and Innovation (JPSI) Nanggroe: Journal Of Scholarly Service Jurnal Pengabdian Masyarakat Charitas Jurnal Ilmiah Kesehatan Nanggroe: Journal of Scholarly Service Rafflesia Journal of Natural and Applied Sciences (RJNAS) KOPEMAS Welfare: Jurnal Pengabdian Masyarakat Bohr: Jurnal Cendekia Kimia NAWASENA: Journal of Community Service Jurnal Biosilampari: Jurnal Biologi
Alfanaar, Rokiy
Chemistry Study Program, Faculty Of Mathematics And Natural Sciences, Palangka Raya University, Palangka Raya, Central Kalimantan, Indonesia.
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SPECTROSCOPIC CHARACTERIZATION AND UV-PROTECTIVE POTENTIAL OF ARCANGELISIA FLAVA EXTRACT Tety Wahyuningsih Manurung; Rokiy Alfanaar; Mokhamat Ariefin; Marvin Horale Pasaribu; Eva Susanty Simaremare
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 2 (2025): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i2.5712

Abstract

The increasing demand for natural UV-protective agents has led to the exploration of plant-based bioactive compounds. Yellow root (Arcangelisia flava) extract is traditionally used in medicine and contains flavonoids, alkaloids, and terpenoids with potential photoprotective properties. This study aimed to characterize the chemical composition of A. flava extract and evaluate its UV-absorbing properties using UV-Vis and FTIR spectroscopy. The extract was obtained through maceration with ethanol, followed by spectroscopic analysis. The UV-Vis spectrum (200–400 nm) revealed multiple absorption peaks, particularly at 270 nm, 292 nm, 306 nm, 340 nm, 354 nm, 360 nm, and 396 nm, indicating the presence of UV-absorbing compounds. FTIR analysis confirmed the presence of hydroxyl (-OH), carbonyl (C=O), and aromatic (C=C) functional groups, which are characteristic of flavonoids and other bioactive compounds. These findings suggest that A. flava extract has potential as a natural UV-protective agent. Further studies on compound isolation, fractionation, and photostability assessments are required to optimize its purity and effectiveness in sunscreen formulations.
Pelarutan Selektif Tembaga dari Limbah Printed Circuit Board dengan Hidrogen Peroksida Gatut Ari Wardani; Rokiy Alfanaar; Sri Juari Santosa
ALCHEMY Jurnal Penelitian Kimia Vol 14, No 1 (2018): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.14.1.11168.51-59

Abstract

Pelarutan selektif tembaga dari limbah printed circuit board (PCB) telah berhasil dilakukan. Logam tembaga yang terkandung di dalam papan PCB dapat dipisahkan menggunakan campuran hidrogen peroksida dan asam sulfat dengan variasi perbandingan volume 0 : 1, 1 : 1, 2 : 1, 3 : 1, 4 : 1, dan 5 : 1. Pemisahan optimal dilakukan dengan sistem perendaman selama 3 hari dengan campuran H2O2/H2SO4 = 3 : 1 (v/v). Jumlah tembaga yang terkandung di dalam papan PCB dianalisis menggunakan X-ray fluorescense. Tembaga yang terkandung di dalam PCB sebesar 57,7%. Pelarutan selektif dapat menurunkan kadar tembaga sehingga tembaga yang masih tersisa adalah sebesar 7,7 x 10-4 %. Penurunan kadar tembaga yang terkandung di dalam PCB mencapai 99,999%. Analisis spektrometri serapan atom dilakukan untuk mengetahui jumlah tembaga yang terlarut yaitu sebesar 25,415 mg/kg PCB.Leaching of Copper from Printed Circuit Board Waste with Hydrogen Peroxide. Leaching of copper from printed circuit board (PCB) waste has been successfully performed. The copper metal contained in the PCB can be separated using a mixture of hydrogen peroxide and sulfuric acid with a variation of volume ratio is 0 : 1, 1 : 1, 2 : 1, 3 : 1, 4 : 1, and 5 : 1. Optimal separation is carried out by the immersion system for 3 days using H2O2/H2SO4 = 3:1 (v/v). The amount of copper contained in the PCB was analyzed using X-ray fluorescence. The copper contained in the printed circuit board is 57.7%. The leaching process can decrease the copper content so that the remaining copper is 7.7 x 10-4%. The decrease of copper content contained in PCB reaches 99.999%. Analysis of atomic absorption spectrometry was conducted to determine the amount of dissolved copper that is 25.415 mg/kg PCB.
Flow-Rate-Regulated Co-Precipitation via Peristaltic Pump for Controlled Nucleation and Morphology of ZnO Nanorods Thathit Suprayogi; Samsul Arifin; Sudarman Rahman; Mu'afa Purwa Arsana; Rokiy Alfanaar; Awalul Fatiqin; Yahya Febrianto
JPSE (Journal of Physical Science and Engineering) Vol 9, No 2 (2024): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

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

Abstract

This study presents a flow-rate-regulated co-precipitation method for synthesizing ZnO nanoparticles using a peristaltic pump to enhance control over nucleation and growth processes. The primary objective was to investigate the effect of controlled reactant delivery on the structural and morphological properties of ZnO nanoparticles. A peristaltic pump system was calibrated to provide a stable and continuous flow of the precipitating agent, achieving an average flow rate of 93.39 ± 1.39 µL/s with high linearity (R² = 0.99946). ZnO nanoparticles were synthesized under controlled conditions and characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results confirmed the formation of a single-phase hexagonal ZnO structure with high crystallinity and an average crystallite size of 55.98 ± 8.35 nm. SEM analysis revealed the formation of nanorod structures with relatively uniform morphology. The improved uniformity is attributed to stable supersaturation conditions enabled by precise flow-rate control. These findings demonstrate that flow-rate regulation is a critical parameter in co-precipitation synthesis and offers a simple, cost-effective strategy for improving reproducibility and structural control in nanoparticle fabrication.
Co-Authors Adi, Mika Ansori Rahman Arif Cahyo Imawan Arsana, Mu afa Ayu, Regina Wahyudyah Sonata Aziza, S. Alfiyah Nur Chresiani Destiana Yoedistira Chresiani Destianita Yoedistira Chresiani Destianita Yoedistira Citrariana, Shesanthi Citrariana, Shesanti Defilia Anogra Riani Desindria, Galang Rizdho Devi Natalia Dewi, Apriana Dion Notario Dita Monita E. Monica Efriyana oksal Elda Alyatikah Elfrida Roulina Simanjuntak Elon Jipasca Fatchiyatun Ni’mah Fatiqin, Awalul Febri Nur Ngazizah Febriana Kesuma, Ruth Ferry Purwanto Gatut Ari Wardani Gunawan, Yohanes Edy I Nyoman, Sudyana, Indri Susanti Iqbal, Rendy Muhamad Iqbal, Rendy Muhamad Isaura Silalahi, Anastasya Jipasca, Elon Jumiati Jumiati Jumiati Jumina Jumina Karelius, Karelius Karyadi Karyadi Karyadi Karyadi Kestrilia Rega Prilianti Krisfian Tata Aneka Priyangga Kurniawan, Yehezkiel Steven Lilis Rosmainar Lilis Rosmainar Mariasa, Joice Cleriska Markus Angkawijaya Marvin Horale Pasaribu Melany Melany Miranti Maya Sylvani Mokhamat Ariefin Monica, Eva Monita, Dita Mu'afa Purwa Arsana Muhamad Iqbal, Rendy Muhamad Taufik Hidayat Muhammad Hilmi Afthoni Muhammad Rifqi Shodri Mulani Jeni Lestari Tampubolon Mu’afa Purwa Arsana Nababan, Jessicca Nainggolan, Yuni Natania Gracia, Amanda Ngazizah, Febri Nur Norhusna, Norhusna Nur Hidayat Oksal, Efriyana P. N. Alfiyandri Pandu Gizta Rapi Paksi Parametta, Vidya Pramudita, Dimas Putri Wineni Putu Indrajaya Lembut Rahman, Sudarman Rahmi Wulandari, Oktavia Rasidah Rasidah Rasidah Rasidah, Rasidah Retno Agnestisia Riaa Safitri Riana, Shesanti Citra Riandy Putra Riani, Defilia Rizki Rachmad Saputra Rollando, Rollando Ruth Febriana Kesuma Ruth Febriana Kesuma Ryu Pratiwi, Djihan Sahari, Yudhi Ekakristian Samsul Arifin Sandi Mahesa Yudhantara Sari Namarito Simarmata Shesanti Citra Riana Shesanti Citra Riana Shodri, Muhammad Rifqi Simajuntak, Ruth Riama Simbolon, Wenika Siti Sunariyati Siti Unvaresi Misonia Beladona Solly Aryza Sri Juari Santosa Steven , Kur Yehezkiel Sugiani, Tina Sulistia, Tiya Sultan Arif Rahmadianto Susanto, FX. Haryanto Tety Wahyuningsih Manurung Thathit Suprayogi Titik Andriani, Titik Utami Irawati W. Swastika Wahyu Nugroho Wahyuningsih Manurung, Tety Wilda, Robiatul Witari Yahya Febrianto Yoedistira, Chresiani Yoedistira, Chresiani Destiana Yohanes Edi Gunawan Yosaeunike, Vitatani Yudhi Ekakristian Sahari Yulita, Elia Yuneta Yuyun Yuniarti, Yuyun Yuyun Yuniati Zuri Rismiarti Zuri Rismiarti