Removal of toxic metals from water using chitosan-based magnetic adsorbents. A review

Brião, Giani de Vargas; Andrade, João Carlos de; Silva, Meuris Gurgel Carlos da; Vieira, Melissa Gurgel Adeodato

doi:10.1007/s10311-020-01003-y

Cited by 109 publications

(24 citation statements)

References 107 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Glassworks have been sources of anthropogenic pollutants around the world (Brião et al 2020;Mutafela et al 2020a;Rossini et al 2010). Elements used in crystal glass, such as arsenic (As), cadmium (Cd), antimony (Sb) and lead (Pb) end up in the environment through emissions, effluents and other factory wastes (Mutafela et al 2020b).…”

Section: Introductionmentioning

confidence: 99%

Efficient and low-energy mechanochemical extraction of lead from dumped crystal glass waste

Mutafela

Jani

et al. 2020

Environ Chem Lett

View full text Add to dashboard Cite

Glass waste dumps from crystal glass production is an health issue due to the occurrence of antimony, arsenic, cadmium and lead in crystal glass. Recovery of those elements could both decrease pollution and recycle metals in the circular economy. Pyrometallurgy is a potential recovery method, yet limited by high energy consumption. Here we tested a lower-energy alternative in which glass is mechanically activated in a ball mill and leached with nitric acid. Results show that mechanical activation destabilised the glass structure and resulted in 78% lead extraction during leaching at 95 °C. Temperature had the most significant effect on extraction, whereas acid concentration, from 0.5 to 3 M, and leaching time, from 0.5 to 12 h, had insignificant effects. In each experiment, 75% of the final extracted amount was achieved within 30 min. The study demonstrates potential for lead extraction from glass waste at lower acid concentration, shorter leaching time and lower temperature, of 95 °C, than traditional pyrometallurgical extraction, typically operating at 1100 °C.

show abstract

Section: Introductionmentioning

confidence: 99%

Efficient and low-energy mechanochemical extraction of lead from dumped crystal glass waste

Mutafela

Jani

et al. 2020

Environ Chem Lett

View full text Add to dashboard Cite

show abstract

“…Previous reviews have summarized in details the application and development prospects of MCs in various fields. Brião et al [59] introduced chitosan-based magnetic adsorbents to remove toxic heavy metals. Jacinto et al [60] focused on the main synthesis processes of magnetic photocatalysts, and their effect on the catalyst morphology, degradation efficiency, and recycling.…”

Section: Different Kinds Of Mcs and Their Fabrication Methodsmentioning

confidence: 99%

Application of Magnetic Composites in Removal of Tetracycline through Adsorption and Advanced Oxidation Processes (AOPs): A Review

et al. 2021

View full text Add to dashboard Cite

Water pollution induced by the tetracycline (TC) has caused global increasing attention owing to its extensive use, environmental persistence, and potential harm for human health. Adsorption and advanced oxidation processes (AOPs) have been promising techniques for TC removal due to ideal effectiveness and efficiency. Magnetic composites (MCs) which exploit the combined advantages of nano scale, alternative sources, easy preparation, and separation from wastewater are widely used for catalysis and adsorption. Herein, we intensively reviewed the available literature in order to provide comprehensive insight into the applications and mechanisms of MCs for removal of TC by adsorption and AOPs. The synthesis methods of MCs, the TC adsorption, and removal mechanisms are fully discussed. MCs serve as efficient adsorbents and photocatalysts with superior performance of photocatalytic performance in TC degradation. In addition, the TC can be effectively decomposed by the Fenton-based and SO4•− mediated oxidation under catalysis of the reported MCs with excellent catalytic performance. Based on the existing literature, we further discuss the challenge and future perspectives in MCs-based adsorption and AOPs in removing TC.

show abstract

“…Desorption is explained as the removal of an adsorbed substance from the surface of an adsorbent. 121 It occurs when the concentration of the material being adsorbed in the medium near the adsorbent decreases and when the temperature rises. 122 Adsorbent recovery is typically a simple two-step process that involves the desorption of adsorbent metal ions and then the activation of the adsorbent for the next adsorption phase.…”

Section: Desorptionmentioning

confidence: 99%

Preparation and application of magnetic chitosan in environmental remediation and other fields: A review

Shaumbwa

Liu

Archer

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

Magnetic chitosan has received considerable attention over the decades due to its low cost, biodegradability, green sources, magnetic intensity. In this review, we reviewed the preparation methods of magnetic chitosan using co-precipitation, cross-linking and electrochemical. Therein cross-linking methodologies involved in the reaction of amino groups are facile to introduce additional reaction groups and improve anti-swelling of chitosan layers, mostly in an acidic environment. Besides, we focused on the applications of magnetic chitosan in various fields such as wastewater treatment, for example, removal of heavy metal ions, organic/inorganic dyes, fluorides, and pesticides. Moreover, magnetic chitosan also reveals great potential application in the field of medical, pharmaceutical, food and electronic screening. Above all, magnetic chitosan is economically and operationally beneficial as it can be easily separated and controlled with an external magnetic field and can be modified to maximize its functions.

show abstract

Removal of toxic metals from water using chitosan-based magnetic adsorbents. A review

Cited by 109 publications

References 107 publications

Efficient and low-energy mechanochemical extraction of lead from dumped crystal glass waste

Efficient and low-energy mechanochemical extraction of lead from dumped crystal glass waste

Application of Magnetic Composites in Removal of Tetracycline through Adsorption and Advanced Oxidation Processes (AOPs): A Review

Preparation and application of magnetic chitosan in environmental remediation and other fields: A review

Contact Info

Product

Resources

About