| 摘要 |
PROBLEM TO BE SOLVED: To enhance mechanical strength and to enable adsorption of various odorous components and sure cracking and deodorization by having photocatalysts and at least >=2 kinds of adsorbents varying in pore size distributions. SOLUTION: This air cleaning film uniformly mixed with photocatalysts 1 and two kinds of adsorbents 2 and 3 varying in pore size distributions is formed on the front surface of a carrier base material 4 by using a binder 5. At this time, the adsorbents having, for example, the small pore size distribution (about 5 to 10 angstrom) are used as the adsorbents 2 and the adsorbents having the pore size distribution (about 10 to 20 angstrom) larger than that of the pore size distribution are used as the adsorbents 3, by which the adsorbents 2 are made possible to capture the odorous components (for example, acetoaldehyde) having a low molecular weight and small molecular structure and the adsorbents 3 are made possible to capture the odorous components (for example, styrene) having a large molecular weight and large molecular structure. The kinds of the adsorbents are increased and the adsorbents having the pore size distributions different from those of others are used, by which the adsorption of many and diversified kinds of the odorous components from the small to the large molecular weights over the entire part of the adsorbents is made possible. |
