Thermal treatment of biochar in the air/nitrogen atmosphere for developed mesoporosity and enhanced adsorption to tetracycline
Abstract
For the purpose of producing carbons with developed mesoporosity, a wood biochar was thermally treated at 600-800 °C in the air/nitrogen atmosphere. The mesopore development was observed when the air flux increased to 50-90 mL/min, and the carbon product having high mesopore surface area (316 m 2 /g) and mesopore pore volume (0.284 cm 3 /g) was produced at the treatment temperature of 700 °C. The mesopores were developed mainly in the temperature holding stage of thermal treatment, with size mainly ranged from 20 to 60 Å. The carbons' adsorption to the antibiotic tetracycline was enhanced by 5.5-9.2 folds when the air/nitrogen mixture was used instead of nitrogen atmosphere in thermal treatment, and the enhanced adsorption is positively related to the mesopore development. In general, this research provides a facile way to produce carbons with developed mesoporosity, so as to improve their adsorption to bulky organic molecules.
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Moderate-temperature thermal-only activation avoiding reactive gases, chemicals, and water remains underexplored.
“however, moderate-temperature thermalonly activation avoiding reactive gases, chemicals, and water remains underexplored and is the focus of this work.”
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References 50 · Cited by 153
- Authors
- Zhu, X., Li, C., Li, J., Xie, B., Lü, J., & Li, Y.
- Affiliations
- Shaoxing University (CN)
- Corresponding author
- Li, Jianfa
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2018-09
- Volume
- 263
- Pages
- 475-482
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2802724538
- Cited by
- 153
- References
- 50
- Citations by year
- 2026: 17 · 2025: 20 · 2024: 29 · 2023: 18 · 2022: 22 · 2021: 15 · 2020: 19 · 2019: 11 · 2018: 2
- FWCI
- 5.14
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Natural Science Foundation of Zhejiang Province (LY16B070003)
- National Natural Science Foundation of China (21777103)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Materials Science › Materials Chemistry › Mesoporous Materials and Catalysis
- Keywords
- biochar, wood biochar, heat treatment, mesoporosity, tetracycline adsorption, antibiotic removal, biomass-derived carbon, adsorption enhancement
- MeSH terms
- Adsorption, Carbon, Charcoal, Nitrogen, Tetracycline, Water Pollutants, Chemical
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