Development of an acidized biochar-supported hydrated Fe(III) oxides for highly efficient cadmium and copper sequestration from water

Li, Yan; Gao, Liangmin; Wang, Yu; Cheng, Shuo; Wu, Guowei; Yang, Xuan; Wan, Shunli

doi:10.1016/j.scitotenv.2021.147017

Cited by 20 publications

(7 citation statements)

References 54 publications

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“…The metal ions are usually adsorbed by functional-group-based chelation (–COOH and –OH) on the biochar surface. 45 Copper ions have also been reported to be adsorbed by biochar in this way. 46 The change of the catalyst composition was tested by XPS.…”

Section: Resultsmentioning

confidence: 99%

Cu-Doped magnetic loofah biochar for tetracycline degradation via peroxymonosulfate activation

Zhang

Sun

et al. 2022

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

Cu-Doped magnetic loofah biochar for tetracycline degradation via peroxymonosulfate activation

Zhang

Sun

et al. 2022

New J. Chem.

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“…The study proposed alkali treatment to boost BC's specific surface area and O-containing functional groups, and addition of metal or metal oxide to improve catalytic and adsorption capabilities, as well as conferring magnetic qualities that are helpful for separation, recovery and regeneration. 34 Water hyacinth BC was used as the carrier of Fe 3 O 4 particles to achieve effective separation and recovery of materials. 29 In another study, Fe 2 O 3 -modified water hyacinth BC was shown to have considerable potential for the elimination of aqueous metal ion contaminants when generated by coprecipitating ferric and ferrous salts on water hyacinth powder and then slowly pyrolyzing the mixture.…”

Section: Modification In Biochar From Aquatic Biomassmentioning

confidence: 99%

“…In a study, invasive plants were used as carrier, supported with metal oxides, for synthesizing modified BC. The study proposed alkali treatment to boost BC's specific surface area and O‐containing functional groups, and addition of metal or metal oxide to improve catalytic and adsorption capabilities, as well as conferring magnetic qualities that are helpful for separation, recovery and regeneration 34 . Water hyacinth BC was used as the carrier of Fe 3 O 4 particles to achieve effective separation and recovery of materials 29 .…”

Section: Modification In Biochar From Aquatic Biomassmentioning

confidence: 99%

Remediation of emerging pollutants using biochar derived from aquatic biomass for sustainable waste and pollution management: a review

Verma,

Singh,

Dhanorkar

2023

J of Chemical Tech & Biotech

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The Coronavirus disease pandemic over the last three years has shifted the attention of the entire world population from a self‐centred monitory growth to a holistic growth, with health and environment as the central focus. Pharmaceuticals and microplastics have emerged as most prominent environmental contaminants in recent times. Although adsorption is recognized globally as a low cost and effective remediation process, the removal of a variety of pollutants from environmental niche still remains a challenge. This review highlights the use of valorised waste aquatic biomass as an adsorbent for the withdrawal of various emerging pollutants (pharmaceuticals, microplastics and heavy metals). The unwanted invasive aquatic plants can be used as a valuable resource and converted into an ideal precursor and value product for the development of carbon‐based adsorbents that have numerous industrial and environmental applications. There lacks a comprehensive review and analysis on the use of biochar, derived from aquatic biomass, for the extraction of emerging pollutants, especially for microplastics. This distinctive, timely work will aid in the expansion of research on the production of biochar from a waste resource, strengthen their use as adsorbent and help combat the increasing pollution due to various emerging pollutants, including pharmaceuticals and microplastics.This article is protected by copyright. All rights reserved.

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“…Heavy metal pollution has non-degradable and bio-accumulative properties, which may result in huge threats to environmental ecosystems and public health [ 1 , 2 , 3 ]. Adsorption is regarded as a facile and efficient method to remove heavy metals from polluted water; therefore, much effort was made to prepare adsorbents with high adsorption capacities [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Biochar Derived from Post-Adsorbent for Immobilizing Cu and Cd in Sediment: The Effect on Heavy Metal Species and the Microbial Community Composition

Sun

Lin

Liu

et al. 2023

Toxics

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Many biomass wastes or their modified forms have been investigated as heavy metal adsorbents. However, less emphasis has been placed on post-adsorbent management or possible further utilization. In this study, biochar (BC) derived from modified bamboo adsorbent after the adsorption of Cu from an aqueous solution was used for the in situ remediation of lake sediment contaminated with Cd and Cu. The results indicated that the Cu concentration was extremely low (≤0.015 mg/L), while Cd was not detected in the overlying water or the interstitial water after the 90-day BC treatment. The pH value (7.5–8.1) slightly increased, and the toxicity characteristic leaching procedure (TCLP) leachability of the Cu and Cd in the sediment decreased overall. Cu and Cd were preferentially transformed into more stable species. The findings highlighted the potential possibility of BC derived from post-adsorbent being used for sediment remediation. However, the BC addition produced significant effects on the sediment microbial activity and community structure. In general, with an increase in BC, the urease activity increased, while the alkaline phosphatase and invertase activity decreased, which could be attributed to the BC itself. In addition, significant changes in both bacterial and fungal genera were observed. Hence, a cautious approach should be taken in the practical application of BC.

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Development of an acidized biochar-supported hydrated Fe(III) oxides for highly efficient cadmium and copper sequestration from water

Cited by 20 publications

References 54 publications

Cu-Doped magnetic loofah biochar for tetracycline degradation via peroxymonosulfate activation

Cu-Doped magnetic loofah biochar for tetracycline degradation via peroxymonosulfate activation

Remediation of emerging pollutants using biochar derived from aquatic biomass for sustainable waste and pollution management: a review

Biochar Derived from Post-Adsorbent for Immobilizing Cu and Cd in Sediment: The Effect on Heavy Metal Species and the Microbial Community Composition

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