Titanium Coated
how does titanium oxide work when used as coating on a surface such as natural stone or canvass?
I saw in a Japanese documentary where they were using this titanium oxide coating on wall tiles and prefab canvass. It said that you don’t have to keep cleaning the materials when exposed to ultraviolet rays therefore it is good for use on exterior finishings for structures. Could you help me on this?
Titanium dioxide (TiO2) is a very common white pigment used in everything from paints to ceramics to paper to cosmetics to food. TiO2 can have several crystal structures (polymorphs), and all are used to a greater or lesser degree as pigments. The known polymorphs are rutile, anatase, brookite, and beta-TiO2
TiO2, is a semiconductor, and when it’s in the anatase crystal structure, it is photochemically active and can act as a catalyst for a number of oxidation reactions. Photons of UV light can “excite” electrons in the TiO2 to higher energy states (to the conduction band of TiO2), leaving behind electron vacancies or “holes” in the electronic structure. These “holes” are very chemically oxidizing, and can actually react with water and oxidize it to form hydroxyl free radicals (OH). The excited electron can react at the surface of the TiO2 particles with oxygen in water to form superoxide ions (e- + O2 -> (O2)-), and the superoxide ions can further react with water to form additional hydroxide free radicals (2(O2)- + 2H2O -> 2OH + 2OH- + O2).
Hydroxide free radicals are strong oxidants, and are known to attack and break down numerous organic compounds. It is this property that is being touted in the documentary you saw. UV-activated TiO2 has been shown to inactivate (i.e., kill) bacteria, catalyze the breakdown aromatic and aliphitic hydrocarbons, degrade halogenated hydrocarbons, etc.
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Smith & Wesson S&W Baby SWAT Urban Camo Folding Pocket Knife Titanium Coated $0.12 |
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Gerber EVO Titanium-Coated Serrated Pocket Knife One Hand Opening $0.99 |
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CRAFTSMAN DRILL BITS TITANIUM COATED 3/32INCH NEW 5 BITS $0.99 |
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CRAFTSMAN DRILL BITS TITANIUM COATED 1/16 INCH LONG LIFE NEW 5 BITS $0.99 |
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rainbow titanium coated bead, amethyst, peridot silver pendant, size 2.5 inch $0.99 |
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1/2″ Titanium Coated Replacement Tile Cutting Wheel Kit / NEW $0.99 |
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Professional Barber Blue Titanium Coated Hair Cutting Shears 3Pcs: (BK-1292) $0.99 |
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HARBOR FREIGHT 3 PIECE TITANIUM NITRIDE COATED HIGH SPEED STILL STEP DRILLS SAVE $0.99 |
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MorrisProducts 2.25″ Titanium Coated High Speed Steel Drill Bit 13516 $0.99 |
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MorrisProducts 2.63″ Titanium Coated High Speed Steel Drill Bit 13518 $0.99 |
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MorrisProducts 2.75″ Titanium Coated High Speed Steel Drill Bit 13520 $0.99 |
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MorrisProducts 2.88″ Titanium Coated High Speed Steel Drill Bit 13522 $0.99 |
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MorrisProducts 3.13″ Titanium Coated High Speed Steel Drill Bit 13524 $0.99 |
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3/16″ titanium coated drill bit “brand new in package” by black and decker $1.00 |
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MorrisProducts 3.5″ Titanium Coated High Speed Steel Drill Bit 13528 $1.03 |
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Titanium Coated High Speed Steel Drill Bit, 1/16″ $1.03 |
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Titanium Coated High Speed Steel Drill Bit, 5/64″ $1.03 |
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Titanium Coated High Speed Steel Drill Bit, 3/32″ $1.08 |
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Titanium Coated High Speed Steel Drill Bit, 7/64″ $1.08 |
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MorrisProducts 0.63″ Titanium Coated High Speed Steel Drill Bit 13530 $1.16 |
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Titanium Coated High Speed Steel Drill Bit, 1/8″ $1.26 |
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Titanium Coated High Speed Steel Drill Bit, 9/64″ $1.42 |
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Titanium Coated High Speed Steel Drill Bit, 5/32″ $1.42 |
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3 pcs Ninja Throwing knives set Titanium Coated 6″011T $1.47 |
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Titanium Coated Agate & 925 Silver Ring UK Size Q US Size 8.5 Jewelry – 6981 $1.55 |
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HUGE Amethyst, Titanium Coated Agate, Pearl & 925 Silver Pendant 85mm -6902 $1.55 |
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Amethyst, Titanium Coated Agate, Biwa Pearl & 925 Silver Pendant 60mm -5468 $1.55 |
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Titanium Coated Agate & 925 Silver Pendant 50mm Gemstone Jewellery – 6028 $1.55 |
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Titanium Coated High Speed Steel Drill Bit, 11/64″ $1.57 |
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Vermont American 12354 – 1/16″ Titanium Coated Bit $1.71 |
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Vermont American 12356 – 3/32″ Titanium Coated Bit $1.71 |
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Titanium Coated High Speed Steel Drill Bit, 3/16″ $1.85 |
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MorrisProducts 4″ Titanium Coated High Speed Steel Drill Bit 13536 $1.95 |
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Vermont American 12360 – 5/32″ Titanium Coated Bit $1.98 |
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Vermont American 12362 – 3/16″ Titanium Coated Bit $1.98 |
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Famore Titanium Coated Pinking Shears $1.99 |
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MorrisProducts 4.13″ Titanium Coated High Speed Steel Drill Bit 13538 $1.99 |
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MorrisProducts 3.75″ Titanium Coated High Speed Steel Drill Bit 13532 $1.99 |
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Titanium Coated High Speed Steel Drill Bit, 13/64″ $2.09 |
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Professional Barber Titanium Coated Hair Cutting Shears / Scissors: BK 1252 $2.25 |
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3 pcs Ninja Throwing knives set Titanium Coated 6″011T $2.25 |
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Vermont American 12364 – 7/32″ Titanium Coated Bit $2.26 |
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Irwin 63909 9/64 Titanium Nitride Coated HSS Drill Bit $2.29 |
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Titanium Coated High Speed Steel Drill Bit, 7/32″ $2.29 |
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THIS IS SUPERMAX ‘S BEST TITANIUM COATED DOUBLE EDGED BLADE $2.34 |
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1 ea. Irwin 63910 5/32 Titanium Coated HSS Drill Bit $2.39 |
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1 ea. Irwin 63911 11/64″ Titanium Coated HSS Drill Bit $2.39 |
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1 ea. Irwin 63912 3/16″ Titanium Coated HSS Drill Bit $2.39 |
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2 x TITANIUM Coated Engineers Jobbers drills – 5mm $2.34 |
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Titanium Coated High Speed Steel Drill Bit, 15/64″ $2.48 |
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Kobalt 2/32″ Titanium Coated Nail Punch $2.50 |
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Wolfcraft 3/8″ x 3½” Titanium Nitride Coated Forstner Wood-Boring Bit #3331 $2.50 |
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Craftsman 9/64″ in. 9-64027 Drill Bit Titanium Coated Tool $2.50 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $2.59 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $2.59 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $2.59 |
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Irwin 63913 13/64 Titanium Nitride Coated HSS Drill Bit $2.59 |
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2 pk Irwin 63906 3/32 Titanium Coated HSS Drill Bit $2.69 |
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2 pk Irwin 63905 5/64 Titanium Coated HSS Drill Bit $2.69 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $2.74 |
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Wolfcraft 7/8″ x 3½” Titanium Nitride Coated Forstner Wood-Boring Bit #3335 $2.75 |
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2pk HSS METRIC JOBBER DRILL DRILL BIT TITANIUM COATED $2.70 |
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1-1/8″ Spade Bit Titanium Coated_The Hard Sizes To Find $2.79 |
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Craftsman 13/64″ in 9-64031 Drill Bit Titanium Coated Heavy Duty Industrial Tool $2.85 |
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Titanium Coated High Speed Steel Drill Bit, 1/4″ $2.86 |
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Team Losi .28 Titanium nitride Coated Shock Shaft $2.86 |
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13-pc. Titanium Coated HSS Drill Bits – Brand New $2.95 |
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Milwaukee 48-89-1806 5/64″ Thunderbolt Jobbers Length Drill Bit Titanium Coated $2.95 |
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Milwaukee 48-89-1804 1/16″ Thunderbolt Jobbers Length Drill Bit Titanium Coated $2.95 |
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Irwin 63914 7/32 Titanium Nitride Coated HSS Drill Bit $2.95 |
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2 x 3.5MM HSS DRILL BITS – TITANIUM COATED 3.5MM DRILLS $2.96 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $2.98 |
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MorrisProducts 4.5″ Titanium Coated High Speed Steel Drill Bit 13544 $2.99 |
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MorrisProducts 4.63″ Titanium Coated High Speed Steel Drill Bit 13546 $2.99 |
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Tamiya Titanium coated reversible suspension pin shaft TRF415MSX TB EVO5 53917 $2.99 |
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MorrisProducts 4.38″ Titanium Coated High Speed Steel Drill Bit 13542 $2.99 |
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1-1/4″ Spade Bit Titanium Coated_The Hard Sizes To Find $2.99 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $3.06 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $3.06 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $3.06 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $3.06 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $3.06 |
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Milwaukee 48-89-1804 Thunderbolt 1/16″ Titanium Nitride Coated Twist Drill bit $3.05 |
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Milwaukee 48-89-1806 Thunderbolt 5/64 Titanium Nitride Coated Twist Drill Bit $3.05 |
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2pk HSS METRIC JOBBER DRILL DRILL BIT TITANIUM COATED $2.98 |
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Office Scissors, 7″ L, Straight, Titanium Coated Blades, Pointed Tip, Black/Blue $3.10 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $3.14 |
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1 x EXTREME MASONRY DRILL BIT | TITANIUM COATED $3.14 |
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2pk HSS METRIC JOBBER DRILL DRILL BIT TITANIUM COATED $3.11 |
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2 pk Irwin 63904 1/16 Titanium Nitride Coated Drill Bit $3.19 |
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1-3/8″ Spade Bit Titanium Coated_The Hard Sizes To Find $3.19 |
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Titanium Coated High Speed Steel Drill Bit, 17/64″ $3.22 |
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Milwaukee 48-89-1818 15/6″ Thunderbolt Jobbers Length Drill Bit Titanium Coated $3.29 |
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ENKAY 551-C TITANIUM COATED HSS 1/8″ SAW DRILL $3.29 |
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2pk HSS METRIC JOBBER DRILL DRILL BIT TITANIUM COATED $3.26 |
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2 pk. Irwin 63908 1/8 Titanium Nitride Coated Drill Bit $3.39 |
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2 pk Irwin 63907 7/64 Titanium Nitride Coated Drill Bit $3.39 |
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ENKAY 550-C TITANIUM COATED HSS 1/4″ SAW DRILL $3.39 |
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1-1/2″ Spade Bit Titanium Coated_The Hard Sizes To Find $3.39 |
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Irwin 63915 15/64 Titanium Nitride Coated HSS Drill Bit $3.41 |
