Development of phenolic-modified activated carbon for reduced energy band gap and improved semiconductor performance

Rahmadanti Rahmadanti, Agung Sugeng Widodo, Sulistyono Sulistyono, Purnami Purnami

Abstract


This study aims to develop more efficient activated carbon-based
semiconductor materials through modification with phenolic compounds to reduce the energy gap and increase adsorption capacity. Activated carbon was modified by adding phenolic compounds, then characterized using FTIR, UV-Vis, SEM, and EDS to analyze structural, morphological, and electronic changes. The UV-Vis characterization results showed that the AC 70 + F 30 sample experienced a wavelength shift towards the x-axis, which indicates a decrease in energy gap and is confirmed by Tauc plot analysis from 3.60 eV to 2.98 eV. SEM-EDS results revealed changes in pore morphology and a decrease in carbon content due to the interaction between activated carbon and phenolic compounds. These findings indicate that phenolic modification effectively reduces the energy gap and improved charge-transfer characteristics, thereby contributing to the development of more environmentally friendly and efficient activated carbon-based semiconductor materials.


Keywords


Activated carbon; phenolic compounds; energy gap

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References


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DOI: http://dx.doi.org/10.30811/jpl.v23i6.8234

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