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Biochar Meets Single-Atom: A Catalyst for Efficient Utilization in Environmental Protection Applications and Energy
Ting Zhou1, Jie Deng1, Yuxi Zeng1
1College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China.
Biochar-based single-atom catalysts (SACs) offer a sustainable and cost-effective alternative for environmental remediation and energy applications. This review highlights their synthesis, catalytic mechanisms, and future potential.
Area of Science:
- Catalysis
- Materials Science
- Environmental Science
Background:
- Single-atom catalysts (SACs) integrate benefits of multiphase and homogeneous catalysis.
- Carbon-based SACs are favored for their surface area, porosity, electronic structure, and stability.
- Biochar emerges as a cost-effective carbon matrix for SACs, replacing expensive alternatives.
Purpose of the Study:
- To review biochar-based SACs for environmental pollutant removal and energy conversion/storage.
- To explore synthesis strategies, catalytic mechanisms, and stability of biochar-SACs.
- To discuss future prospects and challenges in this field.
Main Methods:
- Review of synthesis strategies: metal salt pre-treatment, metal insertion, and pyrolysis of metal-rich biomass.
- Analysis of applications in advanced oxidation processes for environmental remediation.
- Evaluation of electrocatalytic applications in energy conversion and storage.
Main Results:
- Biochar-based SACs show promise in environmental remediation and energy applications.
- Catalytic oxidation mechanisms in various systems are elucidated.
- Stability of biochar-based SACs is discussed in relation to their applications.
Conclusions:
- Biochar-based SACs present a sustainable approach for catalytic applications.
- Further research is needed to overcome challenges and unlock full potential.
- This review provides a comprehensive overview for future development.
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