Adsorption of cadmium and lead from aqueous solution using modified biochar: A review

Liu, Tianqi; Lawluvy, Yelly; Shi, Yang; Ighalo, Joshua O.; He, Yide; Zhang, Yongjun; Yap, Pow‐Seng

doi:10.1016/j.jece.2021.106502

Cited by 105 publications

(43 citation statements)

References 222 publications

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“…To do this, the adsorbent must have a charge that is opposed to the CBZ net charge. Combining various analytical and experimental findings, the CBZ mechanism can be explained [124]. During adsorption the mechanism is usually in multiples thus in other to identify the process, a systematic approach must be applied.…”

Section: Mechanism Of Carbamazepine Adsorptionmentioning

confidence: 99%

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

et al. 2022

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Carbamazepine (CBZ) is a pharmaceutical compound used in medical practice. Due to the ecotoxicological risk of its presence in the aqueous environment, researchers have been investigating its removal by adsorption technique. The aim of this study is to review the works done on the removal of CBZ from water by adsorption. Carbon‐based materials were the best types of adsorbent for CBZ uptake (> 200 mg g−1). Molecularly imprinted polymer (MIP) and carbon nanotubes (CNTs) showed especially good adsorption capacities. The key mechanisms of CBZ adsorption were π‐π interaction, electrostatic interactions, hydrogen‐bonding and hydrophobic interactions. Classical equilibrium isotherm models like Langmuir and Freundlich were always best‐fits and kinetics modelling was best‐fit to the pseudo‐second order model. The thermodynamics modelling of CBZ adsorption showed it was spontaneous and endothermic for most adsorbents. Methanol and acetone were especially effective for the desorption of CBZ from adsorbents and can achieve > 90 % removal even after 4–5 cycles. CBZ competes favorably in adsorption systems with other pharmaceutical species due to the advantages of the hydrophobic effect and molecular size.

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Section: Mechanism Of Carbamazepine Adsorptionmentioning

confidence: 99%

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

et al. 2022

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“…[1][2][3] Cadmium and its compounds are highly toxic where exposure to them causes cancer and damages the cardiovascular system, digestion, breathing, reproductive system, kidneys, and nerves. [4][5][6] Excess amounts of copper may cause liver and brain poisoning, diarrhea, skin rashes, anemia caused by red cell breakage, high blood pressure, heart disease, premenstrual syndrome, nausea, stomach pain, and severe damage to the central nervous system. Excess amounts of copper also accompany psychological and mental illnesses such as autism, behavior problems, hyperactivity in children, depression in adults, dementia, and stuttering.…”

Section: Introductionmentioning

confidence: 99%

Modification of silica nanoparticles by 2,4-dihydroxybenzaldehyde and 5-bromosalicylaldehyde as new nanocomposites for efficient removal and preconcentration of Cu(ii) and Cd(ii) ions from water, blood, and fish muscles

2022

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“…Physical adsorption was a major removal mechanism [46]. In addition, physical adsorption is mainly determined by the specific pore structure and surface area, and physical adsorption is a reversible process [166]. Interaction between biochar and Pb can be achieved through weak van der Waals forces [165].…”

Section: Physical Adsorptionmentioning

confidence: 99%

Adsorption of Lead from Aqueous Solution by Biochar: A Review

Wang

et al. 2022

Clean Technol.

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Industrialization has resulted in the discharge of a certain amount of lead (Pb) from industrial sources causing damage risk to water quality and human health. Adsorption is an effective technique to remove Pb, and biochar has been widely studied owing to its advantages of low cost and high adsorption capacity. This review summarizes the influence of raw materials and modification methods on the adsorption capability of biochar. The adsorption isotherms and kinetics of biochar were summarized, and the main Pb removal mechanisms were studied systematically. In addition, the challenges and future perspectives were discussed comprehensively. It is expected that the review could provide insightful fundamentals for the experimental research and practical applications of biochar.

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Adsorption of cadmium and lead from aqueous solution using modified biochar: A review

Cited by 105 publications

References 222 publications

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

Modification of silica nanoparticles by 2,4-dihydroxybenzaldehyde and 5-bromosalicylaldehyde as new nanocomposites for efficient removal and preconcentration of Cu(ii) and Cd(ii) ions from water, blood, and fish muscles

Adsorption of Lead from Aqueous Solution by Biochar: A Review

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