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Li Z, Niu R, Yu J, Yu L, Cao D. Removal of cadmium from aqueous solution by magnetic biochar: adsorption characteristics and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:6543-6557. [PMID: 38153572 DOI: 10.1007/s11356-023-31664-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/18/2023] [Indexed: 12/29/2023]
Abstract
Experiments were conducted to investigate the potential of the efficient resource utilization of waste cow manure and corn straw in an agricultural ecosystem. In this study, a magnetic cow manure and straw biochar were synthesized by a co-precipitation method, and cadmium (Cd(II)) was removed by adsorption in aqueous solution. Several physicochemical characterization techniques were applied, including SEM, BET, Zeta, FTIR, Raman, XPS, and VSM. The effects of pH value, magnetic biochar content, adsorption kinetics, and isothermal adsorption on the adsorption of Cd(II) were investigated. The physicochemical characterizations revealed that the physical and chemical properties of the magnetic biochar were substantially changed compared to the unmodified biochar. The results showed that the surface of the biochar became rough, the number of oxygen (O)-containing functional groups increased, and the specific surface area increased. The results of the adsorption experiments showed that the adsorption capacity was affected by pH, magnetic biochar addition, Cd(II) concentration, and adsorption time. The adsorption kinetics and isothermal adsorption experiments showed that the Cd(II) adsorption processes of the cow manure and corn straw magnetic biochars were consistent with the Freundlich model and pseudo-second-order kinetic model. The results also showed that the Cd(II) adsorption effect of cow manure magnetic biochar was found to be more effective than that of corn straw magnetic biochar. The optimal conditions for Cd(II) adsorption were 800 ℃ for cow manure magnetic biochar, with a pH value of 5 and 0.14 g biochar addition, and 600 ℃ for straw magnetic biochar with a pH value of 8 and 0.12 g biochar addition. In conclusion, the cow manure magnetic biochar was an effective adsorbent for the absorption of Cd(II) in wastewater.
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Affiliation(s)
- Zhiwen Li
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
- Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Ruiyan Niu
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
- Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Jiaheng Yu
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
- Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Liyun Yu
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China
- Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Di Cao
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, Heilongjiang, China.
- Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China.
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China.
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Barbera M, Indelicato S, Bongiorno D, Censi V, Saiano F, Piazzese D. Untreated Opuntia ficus indica for the Efficient Adsorption of Ni(II), Pb(II), Cu(II) and Cd(II) Ions from Water. Molecules 2023; 28:molecules28093953. [PMID: 37175363 PMCID: PMC10179860 DOI: 10.3390/molecules28093953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/29/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
The raw cladode of Opuntia ficus indica (OFI) was evaluated as a sustainable biosorbent for the removal of heavy metals (Ni, Pb, Cu, and Cd) from aqueous solutions. The functional groups of OFI were identified by employing DRIFT-FTIR and CP-MAS-NMR techniques before and after contact with the ions in an aqueous media, showing a rearrangement of the biomass structure due to the complexation between the metal and the functional groups. The adsorption process was studied in both single- and multi-component systems under batch conditions at different pHs (4.0, 5.0, and 6.0), different metal concentrations, and different biomass amounts. The results show that the raw OFI had a removal capacity at room temperature of over 80% for all metals studied after only 30 min of contact time, indicating a rapid adsorption process. Biosorption kinetics were successfully fitted by the pseudo-second-order equation, while Freundlich correctly modelled the biosorption data at equilibrium. The results of this work highlight the potential use of the untreated cladode of OFI as an economical and environmentally friendly biosorbent for the removal of heavy metals from the contaminated aqueous solution.
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Affiliation(s)
- Marcella Barbera
- Department of Earth and Marine Sciences, University of Palermo, 90123 Palermo, Italy
| | - Serena Indelicato
- Department of Biological, Chemical and Pharmaceutical Science and Technology, University of Palermo, 90123 Palermo, Italy
| | - David Bongiorno
- Department of Biological, Chemical and Pharmaceutical Science and Technology, University of Palermo, 90123 Palermo, Italy
| | - Valentina Censi
- Department of Earth and Marine Sciences, University of Palermo, 90123 Palermo, Italy
| | - Filippo Saiano
- Department of Agricultural Food and Forestry Sciences, University of Palermo, 90128 Palermo, Italy
| | - Daniela Piazzese
- Department of Earth and Marine Sciences, University of Palermo, 90123 Palermo, Italy
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