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abatement is guaranteed by the label “TX Active” (plus an initial) and replication of the test results. Proof of the effective reduction of oxide-of-nitrogen exposure has been furnished under close-to-practical conditions by the PICADA (Photocatalytic
Innovative Coverings Applications for Depollution
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could be measured by a test method using the
Italian standard UNI 11247, which is being discussed as the basis of a European standard. This method involves test apparatus in which a mixture of air and pollutant flows in a chamber over a test object; the pollutant burden is measured with (and without)
47:), which is added during the cement's production. Typical properties (i.e. strength) of cement applications (such as concrete) will be added to clean the air around the photocatalytic surface.
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Since the photocatalytic effect is needed only on the surface of a building which is exposed to UV, Tiocem is used primarily in the top layer of a two-layer surface.
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Bolte, G. (2009): Innovative building materials - reduction of pollutants with TioCem, ZKG international No. 1-2009, (Volume 62), 63-70
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Diterminazione dell’attività di degradazione di ossidi di azoto in aria de parte di materiali inirganic fotocatalytici
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features, used on the surface of buildings to reduce air pollution caused by exposure of the cement to
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Martin Hunger, Götz Hüsken, Jos
Brouwers, "Photocatalysis applied to concrete products–part 1".
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varies with changing climatic conditions. Field tests were carried out with pavements in
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Guerrini, Gian Luca (2009), "Some observations regarding in-service performance".
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Bolte, G. (2005), "Photocatalysis in cement-bonded building materials".
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128:-), which reacts with the cement surface and is dissolved by water.
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90:) reacts with electrons (e-), generating super-oxide ions (O
101:-) react with hydrogen ions (H+), generating the reactive
212:. In all cases, the requirements of TX Active for NO
58:The chemical process may be summarized as follows:
132:Using materials like TioCem, the abatement of NO
157:The most effective fields for application are:
177:Rendering (dry mortar/exterior cement plaster)
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66:) absorbs energy (UV radiation) and excites
137:exposure to light. A defined level of NO
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142:Assessment) Project (supported by the
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330:Dicembre 2007, 48-50 (in Italian).
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261:, No. 8-2008 (Volume 61), 77-85.
39:Photocatalysis is initiated by
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86:Oxygen existing in the air (O
324:"Galleria Umberto I a Roma"
322:Ramondo, Valeriana (2007),
161:Pavement (stones and slabs)
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248:03/2005 Vol. 3, pp. 92-97.
167:Noise and screen barriers
328:Progretto & Pubblico
180:Road construction (e.g.
116:O + h+ -> H+ + OH-
300:Retrieved 2012-04-12.
62:Titanium dioxide (TiO
246:Cement International
216:abatement were met.
120:Nitrogen dioxide (NO
188:The abatement of NO
146:and other studies.
97:Super-oxide ions (O
259:ZKG international
19:is a specialized
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49:Nitrogen dioxide
41:titanium dioxide
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150:Applications
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31:light (UV).
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29:ultraviolet
270:UNI11247,
232:References
82:+ h+ + e-
35:Technology
210:Stockholm
68:electrons
341:Category
220:See also
172:cladding
106:radicals
103:hydroxyl
194:Bergamo
347:Cement
226:Cement
206:stucco
21:cement
17:TioCem
198:Italy
108:(OH•)
23:with
204:and
202:Rome
70:(e-)
43:(TiO
311:BFT
208:in
74:TiO
51:(NO
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279:^
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94:-)
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126:3
122:2
114:2
112:H
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