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In this paper, the removal performance and mechanism of xanthated chitosan (XCTS) towards heavy metal ions are investigated. XCTS possesses both strong chelating abilities and excellent flocculation properties, which can effectively remove several kinds of heavy metal ions, such as Cr, Cu, Mn, Ni, Pb and Zn. It has a good potential for practical application. In a flocculation test of a mixed component solution, the removal rates of Cr, Cu and Cd reach 100%, 100% and 99.1%, respectively. The removal rates are significantly greater than that of a single component solution. It indicates that there is a synergistic effect between different metal ions. Moreover, the selectivity of XCTS for Cr and Cu is obviously superior to that for Cd; XCTS is easier to combine with the heavy metal ions belonging to hard acids.
This article was published in the following journal.
Name: Water science and technology : a journal of the International Association on Water Pollution Research
In this study, amine-terminated hyperbranched PAMAM (polyamidoamine) polymer (AT-HBP) was synthesized as a multifunctional chelating agent to remove two heavy metal ions (Cr(III) and Cu(II)) from the ...
Removal of heavy metal ions from waste water has drawn intense attention due to their toxicity, bio-accumulation tendency and persistency in nature. Adsorption is regarded as one of the most promising...
To mitigate the serious ecological problems and risks to human health that are posed by heavy metals in the soil, it is important to enhance the efficiency of heavy metal extraction by washing contami...
In the present study, the UiO-66-NH MOF synthesized by microwave heating method was incorporated into the PAN/chitosan nanofibers for the removal of Pb(II), Cd(II) and Cr(VI) ions through the adsorpti...
Heavy metal content of sewage sludge is one of the factors preventing its agricultural use. Leaching processes have been used to solubilize heavy metals and thus reduce metal content of the sludge thr...
This interventional study investigates the efficacy of Wet cupping therapy on heavy metal levels.The levels of the selected heavy metals will be measured in the blood samples obtained from...
All metal implants release metal ions because of corrosion. Total knee arthroplasty implants have large metal surface areas and therefore substantial potential for corrosion. It is planned...
Metal Ions levels of cobalt, chromium, and titanium in 40 patients preoperatively and at least 1 year status post total hip replacement with the Trident II Tritatnium system using an MDM l...
Modern knee implants combine several types of metal and therefore potentially expose patients to different metal ions. Titanium niobium nitride coating (TiNbN) acts like a physical barrie...
This evaluation is being conducted to evaluate the performance of the ASR arthroplasty. The performance of the devices will be assessed by: Clinical parameters: pain, function, satisfacti...
The technique of washing tissue specimens with a concentrated solution of a heavy metal salt and letting it dry. The specimen will be covered with a very thin layer of the metal salt, being excluded in areas where an adsorbed macromolecule is present. The macromolecules allow electrons from the beam of an electron microscope to pass much more readily than the heavy metal; thus, a reversed or negative image of the molecule is created.
Complexing agent for removal of traces of heavy metal ions. It acts also as a hypocalcemic agent.
A chelating agent used as an antidote to heavy metal poisoning.
Chelating agent used for heavy metal poisoning and assay. It causes diabetes.
Chemicals that bind to and remove ions from solutions. Many chelating agents function through the formation of COORDINATION COMPLEXES with METALS.