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All Journal Reaktor International Journal of Science and Engineering (IJSE) International Journal of Renewable Energy Development TEKNIK METANA JURNAL KIMIA SAINS DAN APLIKASI Jurnal Ilmu Lingkungan JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Bulletin of Chemical Reaction Engineering & Catalysis Communications in Science and Technology ASEAN Journal of Chemical Engineering Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Journal Of Sustainability Perspectives Pharmaceutical Sciences and Research (PSR) Journal of Sustainability Perspectives International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis
Dessy Ariyanti
Department Of Chemical Engineering, Universitas Diponegoro, Semarang 50275, Indonesia
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health

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Journal : Communications in Science and Technology

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Biochar supported photocatalyst (mangrove biochar-TiO2) for organic pollutants removal via synergetic adsorption-photocatalytic process Azizah, Nadya Ummi; Ariyanti, Dessy; Lesdantina, Dina; Saputra, Erwan Adi; Srivastava, Vimal Chandra
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1619

Abstract

Access to clean water remains a global challenge, which is made worse by the contamination of chemical dyes. The recent innovations of wastewater treatment have been introduced, such as combined biochar with TiO2 photocatalyst. This study proposed to degrade mainly organic pollutants from dyed wastewater using adsorption-photocatalytic of biochar-supported photocatalyst TiO2 (BSP). Mangroves were converted into biochar via hydrothermal carbonization process and combined with TiO2 by a sol-gel method. The composite was then characterized by SEM-EDX, FTIR, and XRD. The degradation performance of the BSPs was optimized with the addition of Titanium (IV) Isopropoxide (TTIP) solution in biochar for 15-25 mL, solution photocatalyst dosage 0.5–1 g/L, initial dyed water concentration at 10 ppm, pH 5.2, and UV-irradiation time from 30 to 240 min in a photocatalytic reactor. The phenomenon of organic pollutants removal was observed based upon the mechanism and dominance of the process and the degradation reaction rate of organic pollutants in dyed wastewater. Methylene blue used as a model dye was degraded 100% through the adsorption-photocatalysis process using BSP. The highest effective degradation performance was found in BSP 20 that had a functional group area of 4.39923 m²/g, a catalyst loading of 0.5 g/L, and the highest degradation rate at k = 0.021 min?¹. In subsequent development, the synergistic interaction between biochar and TiO2 presents a promising avenue for the development of advanced wastewater treatment systems targeting the removal of organic pollutants, particularly in textile industry.
Co-Authors Adi Saputra, Erwan Adrianus Kristyo Prabowo, Adrianus Kristyo Afiatin Afiatin Agnes Priska Tiarasukma Aji Prasetyaningrum Ambariyanto , Andri Cahyo Kumoro Aprilina Purbasari Apsari Puspita A. Azizah, Nadya Ummi Bakti Jos Bayu Samudra, Muhammad C Sri Budiyati Catarina Sri Budiyati Denny Nugroho Sugianto Desiyantri Siti P. Diah Susetyo Retnowati Dita Baeti Pridiana Erwan Adi Saputro Faishal Maulana Kusumah Filicia Wicaksana H Hadiyanto Hamzah, Fazlena Handayani, Elinna Putri Hapsari, Farida Diyah Heny Kusumayanti Herman Suryadi I N. Widiasa Intan Nurcahyani Junye Dong Junzhe Dong Khoirul Huda Lesdantina, Dina Maksum Radji Marcelinus Christwardana Mo’ungatonga, Satriani Noer Abyor Handayani Peter Kusnadi Purwanto Purwanto Purwoko, Agus Pury Diana Shintawati Saputra, Erwan Adi Setia Budi Sasongko Slamet Priyanto Srivastava, Vimal Chandra Wei Gao Wei Gao Wei Gao Yos Johan Utama