Preparation of Ganoderma Lucidum Bran-Based Biological Activated Carbon for Dual-Functional Adsorption and Detection of Copper Ions

Author: mycolabadmin
2023-01-10
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Summary

This research developed an innovative material from mushroom waste that can both remove and detect harmful copper contamination in water. The material was created by converting leftover Ganoderma lucidum mushroom growing medium into activated carbon and enhancing it with fluorescent particles. This development has several practical implications: • Provides a cost-effective solution for water treatment and monitoring • Helps reduce agricultural waste by repurposing mushroom cultivation byproducts • Offers a more environmentally friendly approach to water quality testing • Could lead to improved water safety monitoring in both industrial and residential settings • Demonstrates a sustainable approach to creating advanced materials from waste products

Background

Mushroom bran, also known as mushroom residue, is the residue of culture medium after harvesting mushrooms. Ganoderma lucidum bran (GB) residue contains mycelium, protein, and trace elements like iron, calcium, zinc, and magnesium. Improper disposal can waste resources and harm the environment. While activated carbon is widely used as an adsorbent, its industrial regeneration process is expensive and complex. There is a need to develop new precursor materials and create dual-functional materials that can both adsorb and detect heavy metals.

Objective

To prepare activated carbon from Ganoderma lucidum bran and integrate it with carbon dots to create a dual-functional material capable of both adsorbing and detecting copper ions in solution. The study aimed to optimize activation conditions and evaluate the material’s performance for copper ion removal and detection.

Results

The optimized activated carbon achieved a maximum specific surface area of 3147 m2/g using KOH activation at 700°C for 5 hours. The dual-functional material showed high adsorption capacity for Cu2+ and could detect Cu2+ through fluorescence quenching with a linear response in the 10-50 nmol/L range. The material demonstrated selective detection of Cu2+ compared to other metal ions and achieved lower detection limits than previously reported materials.

Conclusion

A cost-effective dual-functional activated carbon material was successfully developed from Ganoderma lucidum bran. The material showed excellent performance in both adsorbing and detecting copper ions, with monolayer adsorption via chemical interaction and selective fluorescence detection capabilities. This approach provides new possibilities for carbon-based materials while utilizing waste biomass resources.

Published in:Materials (Basel),
Study Type:Laboratory Research,
Source: 10.3390/ma16020689