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- Mercury_nano-trap_water_filtration abstract "Mercury is considered to be one of the most notorious metal pollutants present in food, water, air and soil, but the process of eliminating it is limited. Heavy metals such as mercury are formed on the earth's crust and made into solutions with ground water through certain natural processing and pH changes occurring in the soil. There are traditional methods that are used to extract mercury from the natural water sources and industrial waste water, such as chemical precipitation, amalgamation, reverse osmosis, membrane filtration and photochemical methods. However, these methods are expensive, time consuming, and inefficient, hence the need for a nanofiltration technology that overcomes all of these issues. Nanofiltration technology is very efficient in removal of mercury species due to its characteristics of having high surface area-to-volume and the fact that it's easily chemically functionalized. Additionally, Brownian motion of nanomaterials allows them to scan large volume of solvent in short times. There are many copolymer nanoparticles (NPs) that can be used as scavengers to eliminate mercury species via redox reactions such as selenium NPs, manganese dioxide nanowhiskers, carbon nanotube−silverNP composites, silver NPs, silver NP-decorated silicaspheres, gold NP-based materials. Among these adsorbents, citrate-capped gold NP-based materials have been used intensively to capture mercury species from nature water.InstrumentationHigh-resolution transmission electron microscopy (HRTEM) is used to obtain the HRTEM images (FEI Tecnai G2 F20 S-Twin working at 200 kV) and double beam UV-visible spectrophotometer is used for the extinction, or removal, of the NPs gold spectra. A combination of scanning electron microscope and an energy dispersive X-ray detector (EDX) for obtaining EDX spectra while sub micrometer particle size analyzer and Delsa nano zeta potential measure the potential of gold NPs. Inductively coupled plasma-mass spectrometry (ICP-MS) measures the quantification of mercury species in gold NPs while the linear range of Hg2+ should be between 2.5 and 50 nM. The powder X-ray diffraction is measured using a diffractometer with Cu Kα radiation. A superconducting quantum interference device measures the magnetometry while the Fourier-transformed infrared spectroscopy spectrum is measured by a Nicolet 6700 FT-IR spectrometer.Removal of mercury speciesThe application of an external magnetic field helps reduce the Fe3O4 NP compositions and can be used to remove the citrate capped gold NPs or Tween 20- Au NPs. The quantity of the Hg2+ is determined by ICP-MS. Elimination efficiency is calculated as:The equilibrium absorption capacity was determined by:where qe is the equilibrium absorption capacity, Ce is the concentration of Hg2+, V is the volume of the solution and W is the weight of Tween 20-Au NPs. Other metals in place of mercury can be used to determine the reusability of the nanofiltration method. A simple nanofiltration process is illustrated in Figure 2.When purifying mercury from sea water, a decrease in the volume to surface area ratio leads to a decline in the efficiency of the elimination.7 Cost efficiency of the nanotrap process is indicated in the fact that the materials can be reused to recycle more water. Tween 20-Au NPs are rapid, efficient and selective in capturing Hg2+ in high salt water concentration when the gold NPs catalyze the citrate ion induced reduction of Hg2+ to Hg0. ICP-MS is used to quantify the Hg2+ concentration to determine the level of elimination efficiency. Figure 3 shows an illustration process of the nano trap filtration process.The use of nanomaterials in removing the mercury from water is advantageous because of the high surface area to volume ratio and the fact that they are easily chemically functionalized. Nanomaterials capture five times more mercury than the maximum mercury captured predicted through the use of previous mercury filtration systems. Compared to other NP-based methods for Hg2+ removal from high salt matrix, Tween 20-Au NPs is a rapid and selective technique with high efficiency. For purification of drinking water, it is advisable to use nano-tablets with the filters because they are easily accessible and cost efficient.".
- Mercury_nano-trap_water_filtration thumbnail Mercurynanotrapfigure1.png?width=300.
- Mercury_nano-trap_water_filtration wikiPageExternalLink www.awwa.org.
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- Mercury_nano-trap_water_filtration wikiPageRevisionID "678696902".
- Mercury_nano-trap_water_filtration wikiPageWikiLink Amalgam_(chemistry).
- Mercury_nano-trap_water_filtration wikiPageWikiLink Aquatic_toxicology.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Category:Water_pollution.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Category:Water_technology.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Category:Water_treatment.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Chemical_precipitation.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Ecological_sanitation.
- Mercury_nano-trap_water_filtration wikiPageWikiLink List_of_waste-water_treatment_technologies.
- Mercury_nano-trap_water_filtration wikiPageWikiLink List_of_waste_water_treatment_technologies.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Membrane_filtration.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Membrane_technology.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Mercury_(element).
- Mercury_nano-trap_water_filtration wikiPageWikiLink Microfiltration.
- Mercury_nano-trap_water_filtration wikiPageWikiLink National_Rural_Water_Association.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Precipitation_(chemistry).
- Mercury_nano-trap_water_filtration wikiPageWikiLink Reverse_osmosis.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Sewage_treatment.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Water_conservation.
- Mercury_nano-trap_water_filtration wikiPageWikiLink Water_treatment.
- Mercury_nano-trap_water_filtration wikiPageWikiLink File:Mercurynanotrapfigure1.png.
- Mercury_nano-trap_water_filtration wikiPageWikiLink File:Mercurynanotrapfigure2.png.
- Mercury_nano-trap_water_filtration wikiPageWikiLink File:Mercurynanotrapfigure3.png.
- Mercury_nano-trap_water_filtration wikiPageWikiLinkText "Mercury nano-trap water filtration".
- Mercury_nano-trap_water_filtration hasPhotoCollection Mercury_nano-trap_water_filtration.
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- Mercury_nano-trap_water_filtration subject Category:Water_pollution.
- Mercury_nano-trap_water_filtration subject Category:Water_technology.
- Mercury_nano-trap_water_filtration subject Category:Water_treatment.
- Mercury_nano-trap_water_filtration comment "Mercury is considered to be one of the most notorious metal pollutants present in food, water, air and soil, but the process of eliminating it is limited. Heavy metals such as mercury are formed on the earth's crust and made into solutions with ground water through certain natural processing and pH changes occurring in the soil.".
- Mercury_nano-trap_water_filtration label "Mercury nano-trap water filtration".
- Mercury_nano-trap_water_filtration sameAs m.0130pyzv.
- Mercury_nano-trap_water_filtration wasDerivedFrom Mercury_nano-trap_water_filtration?oldid=678696902.
- Mercury_nano-trap_water_filtration depiction Mercurynanotrapfigure1.png.
- Mercury_nano-trap_water_filtration isPrimaryTopicOf Mercury_nano-trap_water_filtration.