photocatalysis


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Related to photocatalysis: photocatalyst

photocatalysis

[‚fōd·ō·kə′tal·ə·səs]
(physical chemistry)
The phenomenon by which a relatively small amount of light-absorbing material, called a photocatalyst, changes the rate of chemical reaction without itself being consumed.
References in periodicals archive ?
2] Nanoparticles, Photocatalysis, Zinc doping, Sol-gel, Characterization, High Energy Ball Milling
Decolourisation of industrial wastewaters of textile dyeing industry by photocatalysis, Ind.
2] photocatalysis for indoor air applications: Effects of humidity and trace contaminant levels on the oxidation rates of formaldehyde, toluene, and 1, 3-butadiene.
The removal of the toxic Hg(II) salts from water by photocatalysis.
The Airwise uses a process called photocatalysis to "oxidize odors, settle dust, reduce allergens and destroy viruses, bacteria and mold" according to a company release.
More notable among the technologies that are being researched for the remediation of soils and sediments contaminated by PCBs are: biodegradation, biodegradation in combination with photolysis, heterogeneous photocatalysis, dehalogenation by alkaline polyethylene glycol, and oxidation with ozone [2-13].
2] mediated photocatalysis of phenol has been completed including the removal of only phenol [11-28], effect of organic compounds on to phenol photocatalysis [8,9,22,29,30,31], effect of metal ions on to phenol photocatalysis [7,8,32], and effect of ions on to phenol photocatalysis [9].
2] and can form chemically activated surface-bond intermediates, but unfortunately, such catalysts are degraded during the repeated catalytic cycles usually involved in heterogeneous photocatalysis.
2]) particles have received increasing attention because of their great potential in photocatalysis.
In parallel, advanced oxidation processes were investigated as direct methods of gas treatment (Shen and Ku, 1999), for which mineral supports such as zeolites can provide a good environment for heterogeneous photocatalysis (Yoneyama and Torimoto, 2000; Monneyron et al.
Matsui is a Shizuoka-based amusement industry businessman who also happens to be interested in using photocatalysis to reduce the symptoms of hay fever and other environment-related allergies.
Genesis Air Photocatalysis uses ultraviolet light to destroy and neutralize microorganisms and to activate a chemical process that removes toxic compounds, neutralizes odors, and vaporizes organic matter.