The DOI matches its Crossref record; 70 of the 70 references it cites were found in a registry or an index.
Capacity and potential mechanisms of Cd(II) adsorption from aqueous solution by blue algae-derived biochars
Abstract
The removal of potentially toxic metals by biochars is currently a popular and salutary method. In this study, we combined the advantages of blue algae (Microcystic) and pyrolysis technology to produce a late-model biochar. Moreover, the adsorption capacity and potential mechanisms of blue algae-derived biochars for the removal of cadmium (Cd) from aqueous solution were evaluated in comparison with the adsorption capacity and potential mechanisms of corn straw-derived biochar (CSBC) and rice husk-derived biochar (RHBC). Batch adsorption experiments were used to explore the adsorption performance of biochars, and a wide range of characterization techniques were employed: scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and zeta potential analysis. The results showed that the adsorption isotherms could be described well by the Langmuir model and that the pseudo-second-order model fit the Cd(II) adsorption kinetics best, indicating that the process was monolayer and controlled by chemisorption. Moreover, the Cd(II) removal capacity of optimal blue algae-derived biochar (BC600-2) (135.7 mg g-1) was 85.9% and 66.9% higher than the removal capacity of CSBC and RHBC, respectively. In addition, the results of the characterization methods showed that precipitation with minerals was the primary mechanism, accounting for 68.7-89.5% of the capacity. Overall, blue algae-derived biochars, as a product from freshwater biowaste, may be a novel and potentially valuable adsorbent for Cd(II) removal.
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“For instance, biochars derived from blue algae immobilized cadmium with an adsorption capacity of 135.7 mg/g [68].”
From Algal-Based Carbonaceous Materials for Environmental Remediation: Advances in Wastewater Treatment, Carbon Sequestration, and Biofuel Applications (2025) · cites this paper as [68]
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Cites
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Research works printed but not linked: 1
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Cited by
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Biochar for the removal of contaminants from soil and water: a review
Qiu, M., Liu, L., Ling, Q., Cai, Y., Yu, S., Wang, S., Fu, D., Hu, B., & Wang, X. (2022) · Biochar · doi:10.1007/s42773-022-00146-1 · Cited by 733
A state-of-the-art review on algae pyrolysis for bioenergy and biochar production
Sun, J., Norouzi, O., & Mašek, O. (2022) · Bioresource Technology · doi:10.1016/j.biortech.2021.126258 · Cited by 211
Cheng, S., Zhao, S., Guo, H. M., Xing, B., Liu, Y., Zhang, C., & Ma, M. (2021) · Bioresource Technology · doi:10.1016/j.biortech.2021.126081 · Cited by 189
Nguyen, T.-B., Truong, Q.-M., Chen, C.-W., Doong, R.-A., Chen, W.-H., & Dong, C.-D. (2022) · Bioresource Technology · doi:10.1016/j.biortech.2021.126351 · Cited by 184
Industrial CO2 Capture by Algae: A Review and Recent Advances
Iglina, T., Iglin, P., & Pashchenko, D. (2022) · Sustainability · doi:10.3390/su14073801 · Cited by 142
Metadata
- Authors
- Liu, P., Rao, D., Zou, L., Teng, Y., & Yu, H.
- Affiliations
- Jiangnan University (CN)
- ORCID
- Teng, Yue
- Venue
- Science of The Total Environment
- Publisher
- Elsevier BV
- Published
- 2021-05
- Volume
- 767
- Pages
- 145447
- ISSN
- 0048-9697 (ISSN-L)
- OpenAlex
- W3127412601
- Cited by
- 161
- References
- 70
- Citations by year
- 2026: 24 · 2025: 32 · 2024: 34 · 2023: 31 · 2022: 23 · 2021: 17
- FWCI
- 7.80
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- The Science of The Total Environment (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Key Research and Development Program of China (2018YFC1902105)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Environmental Science › Environmental Engineering › Environmental remediation with nanomaterials
- Physical Sciences › Environmental Science › Water Science and Technology › Heavy Metal Pollution Remediation
- Keywords
- cadmium removal, biochar, Microcystis, pyrolysis, adsorption, heavy metal removal, adsorption isotherms, adsorption kinetics, precipitation chemistry, corn straw biochar, rice husk biochar, adsorption mechanism
- MeSH terms
- Adsorption, Cadmium, Charcoal, Kinetics, Water Pollutants, Chemical
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