Article Per Year (5 Year)
p-Index From 2021 - 2026
6.22
P-Index
This Author published in this journals
All Journal BERKALA SAINSTEK Sinergi ROTOR: JURNAL ILMIAH TEKNIK MESIN UNEJ e-Proceeding Konversi JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya ALCHEMY Jurnal Penelitian Kimia JMM (Jurnal Masyarakat Mandiri) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Warta Pengabdian STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Chemistry Indonesian Journal of Chemical Research CHEESA: Chemical Engineering Research Articles Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jurnal Kartika Kimia Jurnal Teknologi Jurnal Elemen J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Jurnal Teknik Kimia Indonesia International Journal on Food, Agriculture and Natural Resources (IJFANRES) Dedikasi: Jurnal Pengabdian kepada Masyarakat Jurnal Pijar MIPA Makara Journal of Science Logic : Jurnal Rancang Bangun Dan Teknologi Journal of Biobased Chemicals (JOBC) Jurnal Teknik Kimia dan Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Penelitian Sains dan Teknologi Indonesia Dinamika Kerajinan dan Batik: Majalah Ilmiah
Boy Arief Fachri
Department Of Chemical Engineering, Faculty Of Engineering, University Of Jember, Jalan Kalimantan 37, 68121 Jember
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

Published : 53 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 53 Documents
Search

 2   3   4   5   6 
Isotherm and Kinetics Adsorption of Ammonium using Cocopeat Biochar Activated Meta Fitri Rizkiana; Lilis Nurhasanah; Nanda Ayudiyah Andriani; Bekti Palupi; Boy Arief Fachri; Istiqomah Rahmawati; Helda Wika Amini; Endar Hidayat
CHEESA: Chemical Engineering Research Articles Vol. 8 No. 1 (2025)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v8i1.22466.43-54

Abstract

Nitrogen recovery from wastewater is capable of preventing eutrophication, offering economic benefits, and reducing carbon footprint from synthetic fertilizer production. Biochar has been explored as adsorbent for ammonium (NH??) removal. Therefore, this study aimed to investigate the potential of biochar derived from cocopeat as adsorbent for NH?? removal. Cocopeat was modified by potassium hydroxide (KOH) and pyrolyzed at 500°C for 2 h to produce activated biochar. Kinetics and isotherm studies were conducted to examine adsorption mechanisms. Fourier Transform Infrared (FTIR) data showed that the resulting biochar after activation and adsorption contained hydroxyl O–H and C–O groups, while a new N–H band confirmed the interaction with NH?? ions. Biochar adsorbed NH?? ions with a maximum capacity of 0.3078?mg/g. FTIR spectra showed shifts and changes in the intensity of functional group bands, confirming the interaction between NH?? ion and the active sites on biochar surface. Adsorption followed Langmuir isotherm and pseudo-first-order kinetics model, with an optimal contact time of 5 h. These results suggested that cocopeat-based biochar had potential as an effective NH?? adsorbent.
Ultrasound-assisted liquid biphasic extraction of fucoidan from Sargassum sp. Fachri, Boy Arief; Labibah, Jovita; Luthfiana, Zakia; Ansori, Ansori; Putri, Ditta
Konversi Vol 15, No 1 (2026): APRIL 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v15i1.25502

Abstract

Sargassum sp.. is an essential source of fucoidan. This work aims to extract fucoidan from Sargassum sp.. using a liquid biphasic system assisted by ultrasonics. It observes the effects of various process parameters on fucoidan yield, determines the optimum extraction conditions, and develops a model for extraction kinetics. In the experiment, 80-mesh Sargassum sp.. powder is ultrasonically treated in a 2-propanol solution. Furthermore, the extract is separated by the addition of a K₂HPO₄ solution, which forms a two-phase system. Following the process, the CaCl2 is introduced to separate the alginate. Afterwards, ethanol is added to the resulting filtrate to precipitate fucoidan. This approach highlights techniques for efficient extraction and separation of fucoidan from Sargassum sp.. The process parametperaturaers included extraction time (10, 15, and 20 minutes), ultrasonic power (60%, 65%, and 70%), and the Sargassum-to-solvent ratio (0.03, 0.04, and 0.05 g/mL). This work confirms that FTIR and HPLC techniques successfully identified fucoidan. The highest yield, 14.1%, was achieved with a Sargassum-to-solvent ratio of 0.04 g/mL, an extraction time of 20 minutes, and an ultrasonic power of 70%. The results indicate that extraction time is a significant factor compared to power and the Sargassum-to-solvent ratio. The diffusion coefficient (Dₑ) of 1.425118 × 10⁻² m²/s suggests relatively rapid diffusion under the applied extraction conditions.
Optimasi Ekstraksi Flavonoid dari Ulva lactuca dengan Kombinasi Cell Disruption dan Ultrasound-Assisted Hot Water Helda Wika Amini; Muhammad Rizky Kurniawan; Nida Ayu Salsabila; Boy Arief Fachri; Zuhriah Mumtazah; Meta Fitri Rizkiana; Istiqomah Rahmawati; Bekti Palupi; Yukti Nurani; Rekfa Wika Amini
ALCHEMY Jurnal Penelitian Kimia Vol 21, No 2 (2025): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.21.2.98141.284-295

Abstract

Ulva lactuca merupakan biota laut yang berpotensi sebagai sumber bahan aktif kosmetik karena kandungan bioaktifnya seperti flavonoid, alkaloid, saponin, terpenoid, dan tanin. Penelitian ini bertujuan mengekstraksi flavonoid serta menganalisis nilai Sun Protection Factor (SPF) U. lactuca menggunakan kombinasi metode cell disruption dan ultrasound-assisted hot water (UAHW). Tiga metode perlakuan cell disruption (tanpa perlakuan, osmotic shock, dan hidrotermal dengan autoklaf) dikombinasikan dengan variabel UAHW yaitu suhu ultrasonik (40, 60, 80 °C) dan waktu ultrasonik (5, 10, 15 menit). Ekstraksi dilakukan menggunakan pelarut etanol 96% pada serbuk U. lactuca berukuran 60 mesh. Optimasi dilakukan menggunakan Response Surface Methodology (RSM) dengan Box–Behnken Design (BBD). Hasil menunjukkan bahwa total flavonoid dan nilai SPF tertinggi (33,23 mg QE/g dan SPF 20,80) diperoleh tanpa perlakuan cell disruption, pada suhu 80 °C dan waktu ekstraksi 10 menit. Penelitian ini menegaskan bahwa metode UAHW efektif meningkatkan ekstraksi flavonoid dan SPF meskipun tanpa cell disruption. Selain itu, pendekatan RSM terbukti efisien dalam optimasi proses. Studi ini memberikan kontribusi pada pengembangan bahan aktif alami U. lactuca untuk aplikasi kosmetik, khususnya sebagai agen pelindung sinar UV.Optimization of Flavonoid Extraction from Ulva lactuca Using a Combination of Cell Disruption and Ultrasound-Assisted Hot Water. Ulva lactuca is a marine organism with significant potential as a source of active ingredients for cosmetic applications, owing to bioactive compounds such as flavonoids, alkaloids, saponins, terpenoids, and tannins. This study aimed to extract flavonoids and evaluate the Sun Protection Factor (SPF) of U. lactuca using a combination of cell disruption methods and ultrasound-assisted hot water (UAHW) extraction. Three cell disruption treatments (no treatment, osmotic shock, and hydrothermal using an autoclave) were combined with UAHW variables, including ultrasonic temperature (40, 60, 80 °C) and ultrasonic time (5, 10, 15 minutes). The extraction was conducted using 96% ethanol as a solvent on U. lactuca powder sieved to 60 mesh. Optimization was performed using Response Surface Methodology (RSM) with a Box–Behnken Design (BBD). The highest total flavonoid content (33.23 mg QE/g extract) and SPF value (20.80) were obtained without cell disruption, at 80°C for 10 minutes. The study confirms that UAHW effectively enhances flavonoid extraction and SPF, even without cell disruption. Furthermore, the RSM approach proved efficient for process optimization. This study contributes to developing natural active ingredients from U. lactuca for cosmetic applications, particularly as UV-protective agents.
Co-Authors Abdul Malik Karim Amrullah Abi, Moch Irgi Fadhilal Adelina, Saltsabita Nourin Adrian, Febri Afwal, Diza Raudhatul Ahmad Syuhri Akbar Anugrah Ikhsani Al Fajri, Maktum Muharja Alex Ttesa Elsyamba Alfinaini, Nur Aini Dwi Alfinaini Alifia Rahma Putri Neysella Amalia Ramadhan Anak Agung Nabilla Azzahrah Anggraini, Ranita Anggi Annisa, Yasmin ansori ansori Ansori Ansori Ardila Dwi Tresna Ari Susanti Arief Budiman Aris Zainul Muttaqin Asshofy , Muhammad Agil Atiqa Rahmawati Atiqa Rahmawati Azizi, Daffa Hafiziaulhaq Badril Azhar Badril Azhar Bekti Palupi Bimo Bayu Aji Budiarti, Lutfia Pradisha Danang Muharyanto Dianavita Fatimah Digdo Listyadi, Digdo Dihayat, Icha Shofia Dini Rahmawaty Ditta Kharisma Yolanda Ditta Kharisma Yolanda Putri Doddy Parningotan Dwi Intan Noer Aini Elida Novita Elisah, Nor Elsyamba, Alex Ttesa Endar Hidayat Erna Subroto Farwah, Zilma Aliyah Fatimah, Dianavita Felix Arie Setiawan Firmansyah, Muhammad Sahrul Gavinda Tsubutul Akmal Ghina Shofiah Adibah Khoirunnisa Gregah Pangayoman Hartanto P Habibatul Inayah Harti Arini Helda Wika Amini Helda Wika Amini Heni Pujiastuti Herdianto, Dimas Nur Hidayat, Debby Aurellia Hilda Huril Ainia Husnul Khotimah I Made Arimbawa Ilyas Arya Pratama Indrayani, Lilin Intan Hardiatama Ismail, Abdul Fatah Istiqomah Rahmawati Istiqomah Rahmawati Kristianta, Franciscus Xaverius Labibah, Jovita Lailatul Fatma Lestari, Afrila Tutut Dwijati Lilis Nurhasanah Lukman Nulhakim Lumbantoruan, Sri Lestari Luthfiana, Zakia M Edoward Ramadhan M Nurkoyim Kustanto M Yuda Pratama Maharani, Regita Gustiayu Pramisti Mahfud Mahfud Mahfud Mahfud Mahros Darsin Maktum Muharja Maulida Septiyana Megasari, Tri Elok Setya Merymistika Yufrani Afred Meta Fitri Rizkiana Mizanurafi’ Ghifarhadi Prasiefa Mochamad Edoward Ramadhan Mochamad Ghaza Al Ghifari Mohammad Nor Muhammad Nabil Suryagama Muhammad Reza Muhammad Reza Muhammad Rizky Kurniawan Muharja, Maktum Mukhammad Fauzi Nabilah Lu’aili Fauziah Nadia Ayumna Fa’iqoh Naily Fatimatuz Zaroh Nanda Ayudiyah Andriani Nayyara Aida Buana Nida Ayu Salsabila Nikita Meidi Nirina Indi Naraismanti Nova Chintya Kurniawati Nova Chintya Kurniawati Nugraha, Briantara Agung Nugroho, Yeremia Prasetya Nur Karima Nur Karima Nurkoyim Kustanto Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah, Nurtsulutsiyah Ocita Galuh Permatasari Permana, Rafly Surya Pradipta, Shima Nuril Pratamai Shelli Pravitasiwi, Nanda Tricya Julia Purimahua, Amanda Augre Maharani Puspita Sari Putri Ayu Salsabila Putri, Ditta Putri, Navisa Ayudia Putri, Salsabila Ananda R Rochmadi Rahman, Agus Ramadana, Ifan Ratnasonia, Samantha Githa Ratri Sekaringgalih Regita Gustiayu Pramisti Maharani Rekfa Wika Amini Renald Rochman Mauludy Reswara Musyafa Richa Febyola Surya Putri Rizalluddin, Muhammad Rizki Abdus Syatar Rizki Fitria Darmayanti Rizki Fitria Darmayanti Rizky Pratama, Reinaldi Rumaisha-Zuhriansyah, Rayya Safira Nur Oktavia Santoso Mulyadi Sa’roni, Achmad Sella Violina Anggraeni Septianti, Kiki Shabrina, Nadhilah Sholeha, Irdatus Slamet Pujianto Sutarsi, Suratsi Syatar, Rizki Abdus Tri Elok Setya Megasari Udroto, Firsta Retnaningtyas Uzinuzulla, Yunita Virda Wardani, Salza Belila Kusuma Wardhani, Maharani Tri Watiningsih, Lusi Karlina Wibowo, Jihan Nafila Wiwik Pratiwi Yakub Hendrikson Manurung Yukti Nurani Zikrillah, M Zuhriah Mumtazah