Photocatalytic Scheme with External Magnetic Field on Coffee Waste in Hydrogen Production

Authors

• Abid Fahreza Alphanoda, Department of Mechanical Engineering, Pancasila University, IndonesiaFollow
• Eko Prasetyo, Department of Mechanical Engineering, Pancasila University, IndonesiaFollow
• Wisnu Broto, Department of Industrial Engineering, Pancasila University, IndonesiaFollow

Abstract

Photocatalytic is considered a deadlock-breaking technology for renewable energy and lowering environmental pollutants. Photocatalytic efficiency efforts are improved by activating the photocatalyst to introduce an external magnetic field. This review highlights recent breakthroughs by comparing original coffee waste, activation of coffee waste with the addition of catalysts, and manipulation of spin electrons by applying external magnets. Characterization was done with FTIR to look at chemical bonds, UV-Vis with Tauc's Relation approach to measure bandgap, and material morphology using SEM EDX. The increase in photocatalyst activation aligns with the decrease in bandgap value. The rate of decline in bandgap is in line with the rate of acceleration of hydrogen production. Adding an external magnetic increases hydrogen production up to 1.5 times greater than the original photocatalytic.

Publisher

Universitas Negeri Malang

First Page

181

Last Page

189

Recommended Citation

Alphanoda, Abid Fahreza; Prasetyo, Eko; and Broto, Wisnu (2023) "Photocatalytic Scheme with External Magnetic Field on Coffee Waste in Hydrogen Production," Journal of Mechanical Engineering Science and Technology (JMEST): Vol. 7: No. 2, Article 9.
DOI: 10.17977/um016v7i22023p181
Available at: https://citeus.um.ac.id/jmest/vol7/iss2/9