Nano TiO2 in Environmental Protection and Air Purification Application
Keywords: Air Purification Materials | Nano TiO2 | Nano SnO2 | Nano ZnO | Nano Fe2O3 | Nano iron | Nano Nickel Powder
Environmental protection and energy are the two major problems to affect human survival and development. Mainly related to environmental protection: safe disposal of solid waste; Water purification, pollution control and wastewater treatment, air purification, pollution abatement and control. Nano-powders and nano-technology has important applications in the environmental protection industry and green energy industry.
Air Purifier
Using nano-powder materials such as nano SnO2, ZnO, Fe2O3 and TiO2 powder to preparate and assembly of automotive exhaust sensor, vehicle exhaust emissions by monitoring and timely alarm for excessive emissions, and regulation of the appropriate air-fuel ratio, reducing the oil-rich combustion, to reduce harmful emissions and fuel consumption purposes.
Using nano-iron, nickel nanoparticles and nano-ferrous oxide sintered body instead of precious metals mixed light as automobile exhaust purifiers, can reduce costs and improve efficiency. Solve the problem of air pollution from fundamental, automobile exhaust emissions using only the alarm and monitoring measures is not enough, we must also pay attention desulfurization of petroleum refining process, reducing fuel sulfur content. Nano-powder materials can improve the desulfurization efficiency in the desulfurization process. For example, 70 nm cobalt titanate as a catalyst in vivo, AL2O3 ceramic catalyst carrier as efficient desulfurization. With white spherical zinc titanate 30-60 nm as an adsorption desulfurization agent, catalyzed by the use of sulfur content less than 0.01%. The next research goal is to develop a new generation of scientists can play a catalytic role in the automotive catalyst nano-cylinder engine, the gasoline in the combustion does not produce CO and NOX, which would solve the problem of oil pollution.
Anatase titanium dioxide photocatalysts TiO2 and other materials can be used for indoor air purification, especially gaseous organic pollutants, such as removal of formaldehyde, toluene. Nanocomposite materials for the purification of formaldehyde, toluene and other indoor pollutants purification Unlike activated carbon and other porous materials, he is degraded to carbon dioxide and its catalytic who can repeat the action, so be thorough removal; such as nano TIO2 load fixed only the surface of diatomite composite formaldehyde adsorption function toluene, and can be in the sunlight and the light of the light by the nano-catalytic function of the adsorbed TIO2 formaldehyde, toluene, to carbon dioxide and water.
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