Selenium Functionalized Metal-Organic Framework MIL-101 for Efficient and Permanent Sequestration of Mercury. 2019

Jianping Yang, and Wenbing Zhu, and Wenqi Qu, and Zequn Yang, and Jun Wang, and Mingguang Zhang, and Hailong Li
School of Energy Science and Engineering , Central South University , Changsha 410083 , China.

Abatement of mercury emission from coal-fired power plants remains a serious task for public health and environmental societies. Selenium functionalized metal-organic framework MIL-101 (Se/MIL-101) was prepared for mercury removal from power plants. The Se/MIL-101 exhibited a remarkable mercury adsorption capacity of 148.19 mg·g-1, which was about 154 to 705 times larger than that of commercial activated carbons exclusively applied for mercury removal from power plants. The initial mercury adsorption rate for Se/MIL-101 reached up to 44.8 μg·g-1·min-1, which was 89- to 1659-fold higher than those of mercury sorbents reported in the literature. The Se/MIL-101 maintained an excellent mercury adsorption stability under simulated flue gas atmosphere containing SO2, NO, and H2O. Gaseous elemental mercury (Hg0) converted on the Se/MIL-101 to stable and water-insoluble mercury selenide (HgSe), which guaranteed a minimum re-emission even sequestration of mercury. Moreover, the mercury-laden Se/MIL-101 could also immobilize mercury in gypsum and efficiently capture mercury ions from desulfurization effluent to an undetectable level (<0.0035 μg·L-1). With these advantages, Se/MIL-101 appears to be a promising material for efficient and permanent sequestration of mercury from power plants.

UI MeSH Term Description Entries
D008628 Mercury A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.
D011210 Power Plants Units that convert some other form of energy into electrical energy. Electric Power Plants,Hydroelectric Power Plants,Thermoelectric Power Plants,Electric Power Plant,Hydroelectric Power Plant,Plant, Electric Power,Plant, Hydroelectric Power,Plant, Power,Plant, Thermoelectric Power,Plants, Electric Power,Plants, Hydroelectric Power,Plants, Power,Plants, Thermoelectric Power,Power Plant,Power Plant, Electric,Power Plant, Hydroelectric,Power Plant, Thermoelectric,Power Plants, Electric,Power Plants, Hydroelectric,Power Plants, Thermoelectric,Thermoelectric Power Plant
D003031 Coal A natural fuel formed by partial decomposition of vegetable matter under certain environmental conditions. Anthracite,Bituminous Coal,Brown Coal,Lignite,Lignitious Coal,Peat Coal,Soft Coal,Anthracites,Bituminous Coals,Brown Coals,Coal, Bituminous,Coal, Brown,Coal, Lignitious,Coal, Peat,Coal, Soft,Coals,Coals, Bituminous,Coals, Brown,Coals, Lignitious,Coals, Peat,Coals, Soft,Lignites,Lignitious Coals,Peat Coals,Soft Coals
D000073396 Metal-Organic Frameworks Supramolecular networks that consist of ordered arrangements of organic electron donor linkers (usually ditopic or polytopic organic carboxylates) and metal cations. They can have an extremely high surface area and adjustable pore size that allows for the insertion of other molecules capable of various functions such as catalysis, capture of carbon dioxide, and drug delivery. Metal Organic Framework,Metal-Organic Framework,Porous Coordination Polymer,Covalent Organic Framework,Porous Coordination Networks,Porous Coordination Polymers,Coordination Networks, Porous,Coordination Polymer, Porous,Coordination Polymers, Porous,Framework, Covalent Organic,Framework, Metal Organic,Framework, Metal-Organic,Frameworks, Metal-Organic,Metal Organic Frameworks,Networks, Porous Coordination,Organic Framework, Covalent,Organic Framework, Metal,Polymer, Porous Coordination,Polymers, Porous Coordination
D012643 Selenium An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE. Selenium-80,Selenium 80

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