Finding A Good Rutile Titanium Dioxide Supplier

Published on 07/17,2018

The rutile forms of titanium dioxide work very well for developing latent prints on dark surfaces. When used as a substitute for Sticky-side powder, they produce excellent results on black electrical tape and have the added advantage of developing prints on both sides of the tape. They also work well on plastic bags and cellophane. Titanium dioxide powder can be used as a white fingerprint powder or may be mixed with water and Kodak Photo-Flo to make a white small particle reagent. The development of latent prints on some dark surfaces has often posed a problem because most processes produce dark colored prints, rendering them difficult to see. A previous effort to visualize prints on dark tape required the use of a fluorescent reagent. Titanium dioxide is a chemical that, for the most part, has been overlooked for its value in developing latents. It is a very fine, nontoxic, nonflammable, white powder with particles much smaller than a micron in diameter. When used to develop fingerprints, it contrasts very well with dark surfaces. Most of the semiconductor photocatalysts investigated are metal oxides (e.g. TiO2, ZnO, SnO2, WO3) and chalcogenides (e.g. CdS, ZnS, CdSe, ZnSe, CdTe). Due to its chemical stability, non-toxicity and suitable positioned valence band (VB) and conduction band (CB) edges, TiO2 is the most commonly used photocatalyst. TiO2 , consisting of 80% of anatase and 20% of rutile, has become a research standard . The main drawback of TiO2, however, is its relatively large band-gap . By consequence, TiO2 shows photocatalytic activity only in the near-ultraviolet (UV) region and can harvest only a small fraction (<5%) of incident solar irradiation and indoor light , limiting its practical applications. Contact Us Honghui Titanium Dioxide Chemical Plant Co.,Ltd. Tel: 0086-25-52397808 Fax: 0086-25-68650010 Email: info@titanium-dioxide.net


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Finding A Good Rutile Titanium Dioxide Supplier