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Fabrication and Photocatalytic Performance of ZnO-Biochar Composites for Eliminating Dye Waste
Journal article   Open access   Peer reviewed

Fabrication and Photocatalytic Performance of ZnO-Biochar Composites for Eliminating Dye Waste

Desi Heltina, Danil Yoselino, Nabellia, Agustina Dumaria, Khairati Amila, Komalasari, Maria Peratenta Sembiring, Amun Amri and Zhong Tao Jiang
Communications in science and technology, Vol.10(2), pp.302-312
2025
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Published (Version of Record)CC BY V4.0 Open Access

Abstract

biochar methylene blue palm kernel shell photodegradation zno
The synthesis of the ZnO-biochar composite from palm kernel shell biomass waste has been accomplished through the utilization of the solvothermal method, yielding a satisfactory outcome. The resulting composite, a combination of ZnO and biochar, has been utilized in the degradation of methylene blue waste compounds. The objective of this research is to synthesize ZnO-biochar composites from palm shells, and to determine the optimal solvothermal temperature and duration. This research was initiated with the preparation of palm shells into biochar. Subsequently, the ZnO-biochar composite was synthesized with variable solvothermal temperatures and solvothermal times. The ZnO-biochar composite was characterized using analytical techniques including SEM-EDX, FT-IR, XRD, BET and UV-vis DRS. The most effective degradation of methylene blue was exhibited by the ZnO-biochar composite sample synthesized at a solvothermal temperature of 180 ̊C and a solvothermal time of 10 hours, achieving a degradation of 88.29%. The enhanced photodegradation performance of this composite sample is attributed to its high surface area, capacity for visible light absorption, and the dimensions of the active crystals, which can account for the high performance of the ZnO-biochar composite for photocatalytic degradation.

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UN Sustainable Development Goals (SDGs)

This output has contributed to the advancement of the following goals:

#6 Clean Water and Sanitation
#9 Industry, Innovation and Infrastructure

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