In an article, author is Zhang, Liping, once mentioned the application of 19094-56-5, Name is 2-Chloro-5-iodobenzoic acid, molecular formula is C7H4ClIO2, molecular weight is 282.46, MDL number is MFCD00079731, category is iodides-buliding-blocks. Now introduce a scientific discovery about this category, Formula: C7H4ClIO2.
Capture of Iodide by Bismuth Vanadate and Bismuth Oxide: An Insight into the Process and its Aftermath
As a result of the scarcity of iodine, as well as its threat to the environment if it is present in excess, iodine as a waste needs to be captured. Compared with ion-exchange resins and Ag-containing materials, which are popular iodide adsorbents, Bi-containing compounds show some important advantages, such as high iodide-capture capacity and fast kinetics. In this study, two Bi-containing compounds, BiVO4 and Bi2O3, were investigated comprehensively for iodide immobilization. The influence of the pH, iodide/adsorbent ratio, temperature, crystallite size, and competing ions was explored, with a view to optimization of the capture process. Further study of the iodide-adsorbed bismuth compounds confirms that the capture of iodide by BiVO4 and Bi2O3 is a chemisorption process with the formation of bismuth oxyiodide (BixOyIz). Furthermore, iodide ions are able to penetrate into the bulk of BiVO4 and Bi2O3, which is believed to be responsible for their high capture capacity. The application of BixOyIz as a photocatalyst has also been examined in Cr-VI reduction. This result makes the capture of iodide by BiVO4 and Bi2O3 even more environmentally friendly as the photocatalytic application of the iodide-containing adsorbents not only avoids the production of secondary waste but may help to solve other environmental issues.
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