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Zinc and Cadmium Adsorption to Aluminum Oxide Nanoparticles Affected by Naturally Occurring Ligands

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TLDR
Overall, AlO nanoparticles are suitably used for Zn and Cd adsorption, which can be significantly enhanced by the presence of PO or HA and to a lesser degree by citrate at low concentrations.
Abstract
-1 and varying ligand concentration at a solid:solution ratio of 1:1000. Adsorption isotherms showed that Zn had higher affinity to the Al 2 O 3 nanoparticle surface than Cd and that adsorption of Zn and Cd in the binary-metal system was lower than in the respective mono-metal systems. Phosphate and HA enhanced Zn and Cd adsorption in all systems, whereas citrate reduced Zn adsorption in the mono-metal system by 25% and increased adsorption in the other metal systems. Removal of Zn or Cd from the systems was generally accompanied by enhanced removal of PO 4 and HA, which may indicate enhanced adsorption due to ternary complex formation or metal-ligand precipitation. Phosphate was the most effective among the three ligands in enhancing Zn and Cd adsorption. Overall, Al

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The Effects of Cadmium Toxicity

TL;DR: Recent studies show that cadmium induces various epigenetic changes in mammalian cells, both in vivo and in vitro, causing pathogenic risks and the development of various types of cancers.
Journal ArticleDOI

Cadmium toxicity and treatment: An update.

TL;DR: Patients with cadmium toxicity need gastrointestinal tract irrigation, supportive care, and chemical decontamination traditional-based chelation therapy with appropriate new chelating agents and nanoparticle-based antidotes.
Journal ArticleDOI

Nanomaterials for the Removal of Heavy Metals from Wastewater

TL;DR: Novel nanomaterials, including carbon-based nanommaterials, zero-valent metal, metal-oxide based nanomMaterials, and nanocomposites, and their applications for the removal of heavy metal ions from wastewater were systematically reviewed and their efficiency, limitations, and advantages were compared.
Journal ArticleDOI

Facile synthesis of alumina-decorated multi-walled carbon nanotubes for simultaneous adsorption of cadmium ion and trichloroethylene

TL;DR: An adsorbent was prepared by decorating alumina onto the surface of multi-wall carbon nanotubes (MWCNTs) for simultaneous removal of cadmium ion (Cd(II) ion) and trichloroethylene (TCE) from groundwater as discussed by the authors.
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Phosphorus-cadmium interactions in paddy soils

TL;DR: In this article, a comprehensive review on the mechanisms involved in the P-induced (im)mobilisation of cadmium (Cd) in paddy soils is presented, including pH, redox reactions, liming effect, rhizosphere acidification and root iron plaques.
References
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Book

Environmental Chemistry of Soils

M. B. McBride
TL;DR: In this article, an introduction to modern soil chemistry describes chemical processes in soils in terms of established principles of inorganic, organic, and physical chemistry, providing an understanding of the structure of the solid mineral and organic materials from which soils are formed.
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Heavy metal removal from water/wastewater by nanosized metal oxides: a review.

TL;DR: The present review mainly focuses on NMOs' preparation, their physicochemical properties, adsorption characteristics and mechanism, as well as their application in heavy metal removal.
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Nanomaterials and Water Purification: Opportunities and Challenges

TL;DR: In this paper, an overview of the use of nanomaterials in water purification can be found, highlighting recent advances on the development of novel nanoscale materials and processes for treatment of surface water, groundwater and industrial wastewater contaminated by toxic metal ions, radionuclides, organic and inorganic solutes, bacteria and viruses.
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