Selective adsorption of Pb 2+ , Cr 3+  and Cd 2+  mixtures on activated carbons prepared from waste tires

Nieto-Márquez, Antonio; Pinedo, Angela; Picasso, Gino; Atanes, Evangelina; Kou, María del Rosario Sun

doi:10.1016/j.jece.2017.01.034

Cited by 48 publications

(16 citation statements)

References 34 publications

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“…This is to highlight that mostly metal ions (Pb 2+ , Cd 2+ , Cr 3+ , Fe 2+ , Cu 2+ , Ni 2+ , Co 2+ , Hg 2+ , etc.) removal is favorable in the pH range 2-6 [143,163,188,192,213,219].…”

Section: Timementioning

confidence: 99%

“…In addition, the search for inexpensive alternative resources as well as methods of preparing activated carbon has attracted the attention of scientific researchers. Several researchers are interested in converting waste from the polymer and textile industries into activated carbon as a favorable approach [176,206,[217][218][219]225]. In this context, activated carbon derived from acrylic fiber waste is obtained by physical activation in the presence of air via controlled heat treatment and used as an adsorbent for the removal of MB from aqueous media [176].…”

Section: Timementioning

confidence: 99%

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Current State of Porous Carbon for Wastewater Treatment

et al. 2020

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Porous materials constitute an attractive research field due to their high specific surfaces; high chemical stabilities; abundant pores; special electrical, optical, thermal, and mechanical properties; and their often higher reactivities. These materials are currently generating a great deal of enthusiasm, and they have been used in large and diverse applications, such as those relating to sensors and biosensors, catalysis and biocatalysis, separation and purification techniques, acoustic and electrical insulation, transport gas or charged species, drug delivery, and electrochemistry. Porous carbons are an important class of porous materials that have grown rapidly in recent years. They have the advantages of a tunable pore structure, good physical and chemical stability, a variable specific surface, and the possibility of easy functionalization. This gives them new properties and allows them to improve their performance for a given application. This review paper intends to understand how porous carbons involve the removal of pollutants from water, e.g., heavy metal ions, dyes, and organic or inorganic molecules. First, a general overview description of the different precursors and the manufacturing methods of porous carbons is illustrated. The second part is devoted to reporting some applications such using porous carbon materials as an adsorbent. It appears that the use of porous materials at different scales for these applications is very promising for wastewater treatment industries.

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“…This is to highlight that mostly metal ions (Pb 2+ , Cd 2+ , Cr 3+ , Fe 2+ , Cu 2+ , Ni 2+ , Co 2+ , Hg 2+ , etc.) removal is favorable in the pH range 2-6 [143,163,188,192,213,219].…”

Section: Timementioning

confidence: 99%

Section: Timementioning

confidence: 99%

Current State of Porous Carbon for Wastewater Treatment

et al. 2020

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“…Although adsorption by activated carbon has long been utilized to remove pollutants from wastewater, its high production cost and regeneration difficulties have limited its use 10,11 . and thus, attention has shifted to the identification of cheaper and more efficient adsorbent alternatives, such as abundantly available natural agricultural wastes 12,13 .…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Methylene Blue and Pb2+ by using acid-activated Posidonia oceanica waste

Elmorsi

El‐Wakeel

El-Dein

et al. 2019

Sci Rep

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Dead leaves of seagrass Posidonia oceanica were activated by using one mol L −1 acetic acid and used as an eco-adsorbent for the removal of methylene blue (MB) and Pb 2+ from aqueous solutions. The seagrass was characterized by chemical and physical measurements that confirmed the acid-activation of seagrass. The favourable conditions for MB and Pb 2+ adsorption onto the activated seagrass (SG a ) were determined to be a pH range of 2–12 and ≥6, an adsorbent dosage of 3.0 and 0.5 g L −1 , respectively, and a shaking time of 30 min, which are suitable for a wide range of wastewaters. The equilibrium data were analysed using the Langmuir, Freundlich and Dubinin-Raduskavich-Kaganer (DRK) adsorption isotherm models. The Freundlich and DRK models best describe the adsorption processes of MB and Pb 2+ , on SG a with capacities of 2681.9 and 631.13 mg g −1 , respectively. The adsorption isotherm fitting and thermodynamic studies suggest that the adsorption mechanism of MB may combine electrostatic and physical multilayer adsorption processes, in which MB may be present as monomers as well as dimers and trimers which were confirmed from UV spectroscopy whereas Pb 2+ is chemically adsorbed onto SG a . The pseudo-2 nd -order kinetic model was utilized to investigate the kinetics of adsorption processes. The removal process was successfully applied for MB-spiked brackish waste water from Manzala Lake, Egypt, with removal efficiencies of 91.5–99.9%.

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“…Cadmium's toxicity is greater than chromium. [1,2]. Heavy metals can enter the body of an organism through passive diffusion, intra/inter-cell active transport and endocytosis.…”

Section: Introductionmentioning

confidence: 99%

Bioremediation of Cadmium and Chromium Metal Polluted Soil Using Compost

Rusmini¹,

Sukarmin²,

Muchlis³

2018

Proceedings of the International Conference on Science and Technology (ICST 2018)

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Research on remediation of chromium and cadmium metal contaminated soil using compost has been carried out. Added compost was 5%, 10%, 15%, 20% and 25% w/w. The study was conducted for 14 days and observed a decrease in the concentration of heavy metals in the soil. Measurement of heavy metal concentrations using AAS Perkin Elmer instrument. Based on the results of the analysis, the highest chromium decrease was 92.222% and the highest cadmium was 90.551% in the use of 25% compost.

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Selective adsorption of Pb 2+ , Cr 3+ and Cd 2+ mixtures on activated carbons prepared from waste tires

Cited by 48 publications

References 34 publications

Current State of Porous Carbon for Wastewater Treatment

Current State of Porous Carbon for Wastewater Treatment

Adsorption of Methylene Blue and Pb2+ by using acid-activated Posidonia oceanica waste

Bioremediation of Cadmium and Chromium Metal Polluted Soil Using Compost

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