Photocatalyst and method for preparing the same

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B01J 2306

Patent

active

056680767

ABSTRACT:
A photocatalyst comprises, on the surface, a zinc oxide film which comprises zinc oxide fine particles formed by anodic oxidation of zinc and having a particle size of not more than 0.2 .mu.m and a method for preparing a photocatalyst comprises the step of anodically oxidizing the surface of a zinc metal substance or a substance mainly comprising zinc metal to form, on the surface, a zinc oxide film which comprises zinc oxide fine particles having a particle size of not more than 0.2 .mu.m. The photocatalyst permits quite efficient decomposition or destruction of gases or bacterial cells to be treated, can easily be adhered to faces to which the photocatalytic function is to be imparted to thus impart sterilization and/or deodorization functions thereto and can easily be fitted to various apparatuses to which a film has conventionally been applied with great difficulty. In particular, if the thickness of the metal substrate is not more than 1 mm, the photocatalyst can be processed by, for instance, cutting and/or bending so that it can be adhered to faces other than flat ones. Moreover, if the photocatalytic activity thereof is deteriorated due to, for instance, contamination, the used photocatalyst can easily be replaced with a fresh one.

REFERENCES:
patent: 4869792 (1989-09-01), Geus et al.
patent: 4954465 (1990-09-01), Kawashima et al.
patent: 4955208 (1990-09-01), Kawashima et al.
patent: 5256616 (1993-10-01), Heller et al.
Derwent Publications Ltd., abstract for JP-A-57 040 806, 6 Mar. 1982.
Derwent Publications Ltd., abstract for JP-A-03 295 854, 26 Dec. 1991.
Derwent Publications Ltd., abstract for JP-A-05 334 914.
Communication and Search Report for EP 9511 3625.8 dated Jan. 12, 1996.
English language abstract for 2-169673.
English language abstract for 3-8448.
English language abstract for 5-140331.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Photocatalyst and method for preparing the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photocatalyst and method for preparing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photocatalyst and method for preparing the same will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-217963

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.