Influence of salinity and rare earth elements on simultaneous removal of Cd, Cr, Cu, Hg, Ni and Pb from contaminated waters by living macroalgae

Costa, Marcelo; Henriques, Bruno; Pinto, João; Fabre, Elaine; Viana, Thainara; Ferreira, Nicole; Amaral, Joana; Vale, Carlos; Pinheiro-Torres, José; Pereira, Eduarda

doi:10.1016/j.envpol.2020.115374

Cited by 37 publications

(10 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[123] Apart from Cu 2+ ions, Pb 2+ ions are also a significant source of pollution in water and lead to high toxicity and bioaccumulation. [199,200] These heavy metal ions are released into water bodies as a contribution from mining industries, battery manufacture, and historically, gasoline. [194] Various adsorbents have been proven to be effective in removing heavy metal ions [201] and among these, surface functionalized Ti 3 C 2 T x MXenes have been reported to show improved adsorptive properties.…”

Section: Mxenes As Adsorbentsmentioning

confidence: 99%

Surface Functionalized MXenes for Wastewater Treatment—A Comprehensive Review

et al. 2022

View full text Add to dashboard Cite

Over 80% of wastewater worldwide is released into the environment without proper treatment. Whilst environmental pollution continues to intensify due to the increase in the number of polluting industries, conventional techniques employed to clean the environment are poorly effective and are expensive. MXenes are a new class of 2D materials that have received a lot of attention for an extensive range of applications due to their tuneable interlayer spacing and tailorable surface chemistry. Several MXene‐based nanomaterials with remarkable properties have been proposed, synthesized, and used in environmental remediation applications. In this work, a comprehensive review of the state‐of‐the‐art research progress on the promising potential of surface functionalized MXenes as photocatalysts, adsorbents, and membranes for wastewater treatment is presented. The sources, composition, and effects of wastewater on human health and the environment are displayed. Furthermore, the synthesis, surface functionalization, and characterization techniques of merit used in the study of MXenes are discussed, detailing the effects of a range of factors (e.g., PH, temperature, precursor, etc.) on the synthesis, surface functionalization, and performance of the resulting MXenes. Finally, the limits of MXenes and MXene‐based materials as well as their potential future research directions, especially for wastewater treatment applications are highlighted.

show abstract

Section: Mxenes As Adsorbentsmentioning

confidence: 99%

Surface Functionalized MXenes for Wastewater Treatment—A Comprehensive Review

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Differences among replicates were below 10%. Cd and Pb in spiked water samples were measured directly or after dilution with HNO 3 2% [36].…”

Section: Quantification Of Cadmium Lead and Mercury In Solutionmentioning

confidence: 99%

Nutshells as Efficient Biosorbents to Remove Cadmium, Lead, and Mercury from Contaminated Solutions

Dias

Pinto

Henriques

et al. 2021

IJERPH

Self Cite

View full text Add to dashboard Cite

The release of potentially toxic elements into the environment, and their effects on aquatic ecosystems still present a real threat. To avoid such contamination, the use of biological sorbents as an alternative to conventional and expensive water remediation techniques has been proposed. The present study evaluated the potential of 0.5 g L−1 of peanut, hazelnut, pistachio, walnut, and almond shells to remove the requisite concentrations of cadmium (Cd), lead (Pb), and mercury (Hg) from contaminated water. Hazelnut shells were identified as the sorbent with the highest potential and were evaluated in mono- and multi-contaminated mineral water. The influence of sorbent-intrinsic and solution-intrinsic characteristics were assessed. Differences among sorbents were attributed to varying percentages of their main components: cellulose, hemicellulose, and lignin. Matrix complexity increase caused a decrease in Cd removal, presumably due to the diminution in electrostatic interaction, and complexation with anions such as Cl-. When simultaneously present in the solution, contaminants competed, with Pb showing higher affinity to the sorbent than Hg. High efficiencies (>90%) obtained for hazelnut shells for all elements in ultrapure water and for Pb and Hg in mineral water) reveals the high potential of this low-cost and abundant waste for use in the remediation of contaminated waters (circular economy).

show abstract

“…Com base neste trabalho, o grupo de investigação da UA tem vindo a desenvolver vários outros estudos dando ênfase ao uso das macroalgas, confirmando a sua capacidade e apetência para a remoção dos poluentes tóxicos convencionais, como o Cd, Cr, Cu, Hg, Ni e P [22,23], mas igualmente para a remoção de REE [24,25].…”

Section: Competição Ou Sinergia Entre Ree Na Sorção à Gracilaria Grac...unclassified

A Potencialidade das Macroalgas na Remoção de Elementos Terras Raras de Águas Contaminadas

Vale¹,

Pereira²,

Pinto³

et al. 2021

BSPQuimica

View full text Add to dashboard Cite

Influence of salinity and rare earth elements on simultaneous removal of Cd, Cr, Cu, Hg, Ni and Pb from contaminated waters by living macroalgae

Cited by 37 publications

References 64 publications

Surface Functionalized MXenes for Wastewater Treatment—A Comprehensive Review

Surface Functionalized MXenes for Wastewater Treatment—A Comprehensive Review

Nutshells as Efficient Biosorbents to Remove Cadmium, Lead, and Mercury from Contaminated Solutions

A Potencialidade das Macroalgas na Remoção de Elementos Terras Raras de Águas Contaminadas

Contact Info

Product

Resources

About