CHEM 98T Lecture 5: Week 3 articles
8 Feb 2017
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Document Summary
Many problems with water quality could be resolved using nanosorbents, nanocatalysts, bioactive nanoparticles, enhanced filtration. Nanomaterials also used to develop chlorine-free biocides through functionalization with chemical groups that target key biochemical constituents of waterborne bacteria/viruses. Due to water demands: proposed distributed optimal technology networks (dot-net: dot-net: distribution/strategic placement of small and highly efficient treatment systems at specific locations. 4 classes of nanoscale materials that are being evaluated as functional materials for water purification: metal-containing nanoparticles, carbonaceous nanomaterials, zeolites, dendrimers. These have broad range of physicochemical properties that make them attractive as separation/reactive media for water purification. Nanomaterials/water purification: opportunities for improving/protecting water supplies. Sorbents are used as separation media in water purification to remove inorganic and organic pollutants from contaminated water: nanoparticles have 2 key properties that make them attractive as sorbents. Have much larger surface areas than bulk particles. Can also be functionalized with various chemical groups to increase affinity towards target compounds.
