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A review on the catalytic ozonation of pollutants in wastewater by heteroelements-doped biochar: Internal and external doping strategies
Abstract
Biochar has been widely developed for the remediation of water pollution, and how to improve the performance of biochar has attracted widespread attention. Heteroelements doping makes biochar have more active centers and durability in catalytic ozonation, which has great development prospects and has attracted the interest of researchers. This study reviews the application of heteroelements dope biochar in catalytic ozonation for wastewater treatment. First, the types of doping elements are discussed, and different doping methods and preparation methods are introduced in detail, among which external doping is widely used, and internal doping is cost-effective and easy to operate. Secondly, the application and mechanism of catalytic ozonation for the degradation of different pollutants are discussed. In addition, the economic costs of different doping methods are compared, and the challenges faced by heteroelements-doped biochar in catalytic ozonation in the future are proposed. This study provides a theoretical basis for the synthesis of low-cost and high-efficiency biochar catalysts for catalytic ozonation in real industrial wastewater treatment. • Comparison of the advantages and disadvantages of biochar doping methods. • Application of catalytic ozone degradation of pollutants in water. • Progress in the treatment of emerging pollutants by doping biochar. • Compare the cost with other carbon materials. • Prospects for doping methods of biochar.
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Maize tassels are rich in cellulose and lignin, which are ideal for producing activated carbon with high porosity and surface area.
“Maize tassels are rich in cellulose and lignin, which are ideal for the production of activated carbon with high porosity and surface area11,42–44.”
From Performance of maize tassel activated carbon for COD removal from industrial wastewater under optimized conditions (2025) · cites this paper as [44]
MTAC offers advantages including low cost, availability, sustainability, and potential for waste valorisation.
“Maize tassel-based activated carbon (MTAC) offers several advantages, including its low cost, availability, and sustainability, as well as its potential for waste valorisation.”
From Performance of maize tassel activated carbon for COD removal from industrial wastewater under optimized conditions (2025) · cites this paper as [44]
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El Gamal, G. A., & Gomaa, A. M. (2025) · Scientific Reports · doi:10.1038/s41598-025-24902-y · Cited by 11
Metadata
- Authors
- Zhao, R.
- Venue
- Alexandria Engineering Journal
- Publisher
- Elsevier BV
- Published
- 2025-04
- Volume
- 119
- Pages
- 35-44
- ISSN
- 1110-0168
- Cited by
- 13
- References
- 0
- Language
- en
- Licence
- Funders
- Shenyang University of Chemical Technology
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