JP5244406B2 - Deodorizing composition - Google Patents

Description

  The present invention relates to a deodorizing composition having an excellent deodorizing effect even in a dark place where a light such as a hospital is not exposed.

  Due to the increasing demand for comfort in the living environment in recent years, many products aimed at deodorization and the like have been developed.

  For example, Patent Document 1 discloses an indoor space deodorant. A layer including at least two kinds of photocatalyst particles of titanium dioxide and zinc oxide is formed on the base material, and zeolite is included as an adsorbent in the layer of the photocatalyst particles. It can adsorb malodorous gases such as ammonia and mercaptans by zeolite, deodorize it by the oxidative decomposition power of the photocatalyst, and quickly reduce the malodorous gas concentration.

Patent Document 2 discloses a pet deodorant containing hornfels as an active ingredient. Masking of malodorous substances by water molecule clusters in the air shattered by far-infrared radiation naturally radiated from hornfels, and adsorbing malodorous substances by finely powdered silicon dioxide with a fine porous structure Deodorize.
JP 2003-126234 A Japanese Patent Laid-Open No. 2004-267011

  In Patent Document 1, malodorous components are decomposed by utilizing the oxidative decomposition action of titanium dioxide which is a photocatalyst. Titanium dioxide does not exhibit its oxidative decomposition action unless it is irradiated with light, and it cannot decompose malodorous components. Therefore, the function of titanium dioxide cannot be exerted in dark places such as hospitals that are always dark and piping. In these places, only the adsorption by the zeolite is performed, the malodorous component cannot be decomposed, and there is a problem that the expected effect cannot be obtained even if it is used.

  Patent Document 2 uses hornfels as an active ingredient, but there is no description as to whether or not the deodorizing effect can be exhibited even in a dark place. Further, there is no description about a synergistic effect by combining with titanium dioxide.

  The present invention contains a photocatalyst, an inorganic adsorbent, and hornfels ore, decomposes the odor component adsorbed by the inorganic adsorbent with the hornfels ore, and activates the photocatalyst with electromagnetic waves generated by the hornfels ore in a dark room. The odor component is decomposed.

Furthermore, the present invention is characterized in that the hornfels ore is contained five times or more by weight with respect to the photocatalyst.

  Furthermore, the present invention is characterized in that the photocatalyst is 4 to 16% by weight, the inorganic adsorbent is 12 to 23% by weight, and the hornfels ore is 63 to 80% by weight.

  Furthermore, the present invention is characterized in that the photocatalyst is made of titanium dioxide.

  Furthermore, the present invention is characterized in that the inorganic adsorbent is made of zeolite.

  According to the present invention, a photocatalyst, an inorganic adsorbent, and hornfels ore are blended. The hornfels ore emits electromagnetic waves, which excites the photocatalyst and exerts a deodorizing function. Therefore, the hornfels ore has an advantage that it can be used as a deodorizing agent even in a dark place or in a pipe that is not always exposed to light.

  Further, according to the present invention, by combining the photocatalyst and the hornfels ore, the hornfels ore is activated by the weak current of the photocatalyst, and the deodorizing function of the hornfels ore is enhanced. Thus, a synergistic effect is exhibited and the function as a deodorizing agent is high.

  Furthermore, according to the present invention, the functions of each of the photocatalysts can be exhibited more effectively by using a blending ratio of 4 to 16% by weight of the photocatalyst, 12 to 23% by weight of the inorganic adsorbent, and 63 to 80% by weight of the hornfels ore. Therefore, it can be suitably used as a deodorant.

  Furthermore, according to the present invention, titanium dioxide is used as the photocatalyst. Since titanium dioxide has a strong deodorizing function among photocatalysts, it has realized a deodorizing agent having a high deodorizing effect.

  Furthermore, according to the present invention, zeolite is used as the inorganic adsorbent. Zeolite has a porous structure and can adsorb odor components quickly and in large quantities. This provides the photocatalyst and hornfels ore in which the adsorbed odor component is blended, and has an advantage that the odor component is easily decomposed.

  The deodorizing composition of the present invention contains a photocatalyst, an inorganic adsorbent, and hornfels ore. The odor component adsorbed by the inorganic adsorbent is decomposed by hornfels ore, and the photocatalyst is activated by electromagnetic waves emitted from the hornfels ore, and the odor component is also decomposed by the photocatalyst.

  By combining titanium dioxide and hornfels ore, a synergistic effect is exhibited and deodorizing action can be enhanced. Titanium dioxide works as a good deodorizing agent that decomposes odorous components by the photocatalytic function, but the catalytic activity is low in places where light is not irradiated and the deodorizing function cannot be exhibited. However, in the composition of the present invention, titanium dioxide is excited by the electromagnetic wave generated by the hornfels ore and exhibits a deodorizing function.

  Thereby, the deodorizing function of titanium dioxide is exhibited even in a dark place such as a hospital that is not exposed to light at all times, a basement, or a pipe. Furthermore, the hornfels ore is activated by the weak electric current which titanium dioxide discharge | releases, and the deodorizing effect increases.

  The inorganic adsorbent is not particularly limited as long as it can adsorb odor components, but it is preferable to use zeolite. Zeolite has a porous structure and can be used as a good adsorbent for adsorbing odor components. The odor component adsorbed by the zeolite is supplied to hornfels ore and titanium dioxide mixed together. And it will decompose | disassemble and deodorize.

  Hornfels ore is formed by contact deformation of raw rocks such as sandstone, mudstone, and shale. Hornfels ore is mainly composed of silicon oxide and aluminum oxide, and contains sodium, magnesium, iron oxide and the like as other chemical components, and may further contain elements such as rubidium, titanium and strontium.

  Hornfels ore is a stone that emits electromagnetic waves of various wavelengths, and it is thought that some wavelengths of these electromagnetic waves activate the photocatalyst. Thereby, even in the situation where light is not irradiated to the photocatalyst, the photocatalytic function is exhibited and a deodorizing effect is produced.

  The mechanism of decomposition of odor components by hornfels ore is not always clear, but the 4 to 24 μm far-infrared radiation emitted from hornfels ore vibrates and pulverizes the water molecule clusters in the air. It is thought that the odor component is wrapped and deodorized.

  Hornfels ore is a stone with a force called super-electromagnetic wave (terahertz wave). In addition to the above-mentioned deodorizing action, the humidity can be adjusted simultaneously by dehumidifying action that decomposes water molecules. In recent years, the number of buildings with increased confidentiality has been increasing. However, due to this, moisture is accumulated and the building tends to decay. However, since the deodorizing composition of the present invention can simultaneously decompose water molecules, deodorization and dehumidification can be performed. Therefore, it is not necessary to separately install a deodorizing agent or the like.

  Further, it is excellent in antifouling effect and antibacterial effect, and when used on a wall or the like, the adhered dirt is decomposed, so that the wall or the like can be kept clean.

  Titanium dioxide is preferably used as the photocatalyst. Titanium dioxide is known as a photocatalyst and has a strong photocatalytic function among photocatalysts and can be used as a good deodorant. When titanium dioxide is irradiated with light having a wavelength of about 400 nm or less, electrons and holes are generated, and has a property of decomposing odor components with an oxidation-reduction reaction.

  With titanium dioxide alone, a deodorizing effect cannot be expected in a situation where light is not irradiated. However, in the present invention, hornfels ore is combined, and electromagnetic waves are radiated from the hornfels ore even in the dark. This electromagnetic wave activates titanium dioxide and generates electrons and holes. Therefore, titanium dioxide is activated and decomposes odor components by electromagnetic waves radiated from hornfels ore even in a dark place where no light is irradiated.

  Then, by adding titanium dioxide, the activity of the hornfels ore can be enhanced, and the deodorizing effect of the hornfels ore itself can be enhanced. The hornfels ore itself has a deodorizing effect that is not as high as that of titanium dioxide. However, when combined with titanium dioxide, the weak current from titanium dioxide resonates with the weak current of the hornfels ore, so that the activity of the hornfels ore is enhanced and the deodorizing action is enhanced.

  Thus, it is thought that a synergistic effect is exhibited by combining titanium dioxide and hornfels ore, and the deodorizing effect is enhanced.

  Hornfels ore is preferably added 5 times or more by weight with respect to the photocatalyst. If it is less than 5 times, the electromagnetic wave emitted from the hornfels ore becomes insufficient, and it becomes difficult to sufficiently excite titanium dioxide to enhance the deodorizing action.

  Moreover, as for the compounding ratio of each component of a photocatalyst, an inorganic adsorbent, and a hornfels ore, a photocatalyst is 4-16 weight%, an inorganic adsorbent is 12-23 weight%, and a hornfels ore is 63-80 weight%.

  If the photocatalyst is less than 4% by weight, the amount of decomposition of the odor component by the photocatalyst decreases, and if it is more than 16% by weight, the amount of the zeolite blended is relatively small, and the adsorbed amount of the odor component is reduced. This is because the efficiency of decomposition of the odor component is reduced because the amount of electromagnetic waves from the hornfels decreases and the photocatalyst cannot be activated.

  If the amount of hornfels ore is less than 63% by weight, electromagnetic waves are reduced and the photocatalyst cannot be activated. On the other hand, when the amount is more than 80% by weight, the amount of zeolite and photocatalyst is relatively reduced, so that the amount of odorous components adsorbed by the zeolite is reduced and the amount of decomposition by the photocatalyst is reduced.

  If the amount of the inorganic adsorbent is less than 12% by weight, the amount of the odorous component adsorbed is reduced, so that the deodorization by the photocatalyst and the hornfels ore is not performed efficiently. If the amount is more than 23% by weight, the amount of the photocatalyst that decomposes the odor component and the hornfels ore is relatively reduced, so that the decomposition efficiency is lowered. In addition, since the inorganic adsorbent only plays a role of adsorbing odor components, the horn fels ore is contained 5 times or more of the photocatalyst and the horn fels ore and the photocatalyst are sufficiently contained. The blending amount is not limited to the above ratio, and may be contained excessively.

  Since the deodorizing composition of the present invention is in the form of a fine powder, it can be applied in various forms such as a building material to which this composition is added, or it can be mixed with paint and applied to the building material. .

  The deodorizing composition of the present invention was verified by comparing with a combination of zeolite not added with hornfels ore and titanium dioxide that the odor component can be decomposed without irradiating light in the dark.

  As shown in Table 1, 70% by weight of hornfels ore, 24% by weight of zeolite, and 6% by weight of titanium dioxide were blended. As a reference example, 80% by weight of zeolite and 20% by weight of titanium dioxide were blended, and this was used as sample 2.

１０００ｃｃ容量の二重のオレフィンノンバリア袋の中にサンプル１を１５０ｇ入れ、５０ｐｐｍに調整したアンモニアガスを充填した後密閉した。光照射のもと所定時間経過後のアンモニアガスの濃度を測定した。なお、ホルンフェルス鉱石による脱臭は臭気成分を水分子で包み込んで発臭をなくすものであるため、臭い検査測定器で測定し、ガスクロマトグラフ測定に換算して濃度を算出した。また、サンプル２についても上記同様に行った。

150 g of Sample 1 was placed in a 1000 cc capacity double olefin non-barrier bag, filled with ammonia gas adjusted to 50 ppm, and sealed. The concentration of ammonia gas after a predetermined time was measured under light irradiation. In addition, since the deodorization by hornfels ore encloses an odor component with water molecules and eliminates odor, it measured with the odor test | inspection measuring device, and converted into gas chromatograph measurement and computed the density | concentration. Moreover, it carried out similarly to the above also about the sample 2.

  Next, Sample 1 and Sample 2 were put in a 150 g bag as above, filled with ammonia gas adjusted to 50 ppm and sealed, and then quickly put in a dark place. And the density | concentration of ammonia gas was measured for every predetermined time, respectively. The room temperature is 18 ° C. and the humidity is 75% RH.

  The result is shown in FIG. FIG. 1A shows a change in ammonia gas concentration when light is irradiated, and FIG. 1B shows a change in ammonia gas concentration when light is not irradiated in a dark place.

  Referring to FIG. 1A, sample 90 takes about 90 minutes for the ammonia gas concentration to reach 0 ppm, while sample 2 takes about 60 minutes. In sample 1 and sample 2, the mixing ratio of zeolite and titanium dioxide was the same, and the total amount was 150 g, so the amount of zeolite and titanium dioxide in sample 2 was about 3.3 times that of sample 1. For this reason, the amount of zeolite was large, and ammonia gas was adsorbed quickly and in large quantities on the zeolite, and because it was under light irradiation, the photocatalytic function of titanium dioxide was exerted more. It is considered that the ammonia component was adsorbed and decomposed in a short time.

  Next, FIG. 1 (B) shows the change in the ammonia gas concentration when light is not irradiated in the dark place. In sample 1, the ammonia gas concentration became 0 ppm in about 100 minutes. In Sample 2 to which no hornfels were added, it did not decrease to 0 ppm thereafter.

  In sample 2, it is considered that the decomposition function of titanium dioxide was not exhibited because it was not exposed to light, only the zeolite was adsorbed, and the amount of adsorbed zeolite was saturated, so that the ammonia gas concentration did not decrease.

  On the other hand, since hornfels ore was added in Sample 1, the deodorizing action by the hornfels ore, and further, the titanium dioxide was activated by the electromagnetic waves emitted from the hornfels ore and the deodorizing action by the titanium dioxide was exhibited. It is considered that the ammonia gas was completely deodorized. Thereby, it was confirmed that the deodorizing composition of the present invention can decompose and deodorize the odor component even in a dark place where light is not always irradiated.

  Next, the mixing ratio of hornfels ore and inorganic adsorbent is changed by keeping the mixing amount of titanium dioxide constant, and the mixing ratio of titanium dioxide and hornfels ore, and the preferable mixing ratio of hornfels ore and inorganic adsorbent are verified. did.

  Samples 11 to 18 were prepared at the blending ratio shown in Table 2, and ammonia gas was deodorized in the dark as in Example 1.

その結果を表３に示すとともに、グラフ化して図２に示している。図２（Ａ）はサンプル１１〜１４、図２（Ｂ）はサンプル１５〜１８のアンモニアガス濃度と時間との関係を示している。

The results are shown in Table 3 and graphed in FIG. FIG. 2A shows the relationship between the ammonia gas concentration and time of Samples 11-14, and FIG. 2B shows the sample 15-18.

ゼオライトの配合比率が高いサンプル、例えばサンプル１１、１２ではゼオライトの配合量が多いことから、初期の濃度低下は早いものの、５０分経過後はほとんど濃度低下が起こらなかった。初期段階では、多く含まれているゼオライトによって、アンモニアガスが速やかに吸着されて濃度が低下したものの、ホルンフェルス鉱石の配合比が低く、ホルンフェルス鉱石自体の分解量が少ないこと、そして、ホルンフェルス鉱石が発する電磁波が少ないことから、二酸化チタンがあまり活性化されず、アンモニアガスの分解が促進できなかったものと考えられる。このため、ゼオライトが吸着したアンモニアガスがなかなか分解されず、ゼオライトの吸着量が飽和した状態となり、それ以上の濃度低下が起こらなかったものと考えられる。

Samples with a high blending ratio of zeolite, for example, Samples 11 and 12, have a large blending amount of zeolite, so that the initial concentration drop was rapid, but the concentration drop hardly occurred after 50 minutes. In the initial stage, ammonia gas is quickly adsorbed by the abundant zeolite and the concentration decreases, but the mixing ratio of hornfels ore is low, the amount of decomposition of hornfels ore itself is small, and hornfels ore is emitted It is considered that since the electromagnetic wave is small, titanium dioxide is not activated so much and the decomposition of ammonia gas cannot be promoted. For this reason, it is considered that the ammonia gas adsorbed by the zeolite was not easily decomposed, the amount of adsorption of the zeolite was saturated, and the concentration did not decrease further.

  About samples 13-18, although the fall rate of ammonia gas density | concentration has a difference, it turns out that it is not in a saturated state and all are reducing the density | concentration gradually.

  In particular, Samples 16 and 17 reached 0 ppm after 120 minutes, indicating that the ammonia gas component in the container was completely removed.

  In addition, since the concentration after 120 minutes continues to decrease for Samples 13 to 15 and 18, the concentration decreases to 0 ppm and the ammonia gas component in the container can be completely removed as time elapses. It is considered a thing.

  And about the samples 13-18, since hornfels ore is added 5 times or more with respect to titanium oxide, if hornfels ore is added 5 times or more by weight ratio with respect to titanium oxide, the electromagnetic waves which hornfels ore emits It is thought that titanium oxide can be activated without being insufficient.

  Moreover, since it is thought that the samples 13-18 can deodorize an odor component completely, if the mixing ratio of hornfels ore and zeolite is 40: 52-80: 12 by weight ratio, it can deodorize completely, and it will be for a shorter time. And 73:19 to 76:16 are considered preferable for complete deodorization.

  A suitable blending ratio of titanium dioxide was verified by changing the blending ratio of titanium dioxide while keeping the blending ratio of hornfels ore and zeolite constant.

  As shown in Table 4, samples 21 to 26 were prepared such that the blending ratio of titanium dioxide was 4 to 16% by weight and the blending ratio of hornfels ore and zeolite was 76:24 (weight% ratio). Using 150 g of each sample, ammonia gas was deodorized in the dark as in Example 1.

その結果を表５に示すとともに、図３にグラフ化して示している。

The results are shown in Table 5 and graphically shown in FIG.

いずれのサンプルにおいても、アンモニアガス濃度の低下速度に違いはあるものの徐々にアンモニアガス濃度が低下していることがわかる。なかでも、二酸化チタンを８重量％配合したサンプル２３では、１１０分後に濃度が０ｐｐｍとなっており、最も好ましいことがわかる。また、サンプル２３以外のサンプルにおいても濃度低下が止まっていないことから、１２０分後にも更に濃度が低下し、最終的に０ｐｐｍになると考えられる。

It can be seen that in any sample, the ammonia gas concentration gradually decreases although there is a difference in the decrease rate of the ammonia gas concentration. Especially, in the sample 23 which mix | blended 8 weight% of titanium dioxide, the density | concentration will be 0 ppm after 110 minutes, and it turns out that it is the most preferable. Further, since the decrease in concentration in samples other than the sample 23 has not stopped, it is considered that the concentration is further decreased after 120 minutes and finally becomes 0 ppm.

  Thus, for samples 13 to 18 of Example 2 and Samples 21 to 26 of Example 3, the ammonia gas concentration decreased after 120 minutes, so the ammonia gas concentration finally decreased to 0 ppm. Therefore, it is thought that it can completely deodorize. Therefore, when a photocatalyst, an inorganic adsorbent, and hornfels ore are blended, it is considered that 4-16% by weight of the photocatalyst, 12-23% by weight of the inorganic adsorbent, and 63-80% by weight of hornfels ore may be blended. However, since zeolite only plays a role of adsorbing odorous components, if hornfels ore is contained more than five times the photocatalyst and hornfels ore and photocatalyst are sufficiently contained, blending of inorganic adsorbent The amount is not limited to the above ratio, and may be added in excess.

  Next, it was verified whether other odor components could be deodorized using methyl mercaptan, which is the strongest odor substance. The deodorizing composition used was 8% by weight of titanium dioxide, 19% by weight of zeolite, and 73% by weight of hornfels ore. In the same manner as in Example 1, methyl mercaptan was deodorized in a dark place where no light was applied.

  The results are shown in Table 6.

メチルメルカプタン濃度は時間とともに低下し、３６０分後には８ｐｐｍまで低下している。この結果から、本発明の脱臭組成物は、様々な臭気成分についても脱臭できるものと考えられ、様々な臭気成分が発生する暗所においても使用できることがわかる。

The methyl mercaptan concentration decreases with time and decreases to 8 ppm after 360 minutes. From this result, it is considered that the deodorizing composition of the present invention can be deodorized with respect to various odor components and can be used even in a dark place where various odor components are generated.

It is a graph which shows the deodorizing effect of ammonia gas by the deodorizing composition of this invention. It is a graph which shows the deodorizing effect of ammonia gas by the deodorizing composition of this invention. It is a graph which shows the deodorizing effect of ammonia gas by the deodorizing composition of this invention.

Claims (5)

Containing photocatalyst, inorganic adsorbent, and hornfels ore,
A deodorizing composition comprising decomposing an odor component adsorbed by the inorganic adsorbent with the hornfels ore and activating the photocatalyst with an electromagnetic wave generated by the hornfels ore in a dark place to decompose the odor component. 2. The deodorizing composition according to claim 1, wherein the hornfels ore is contained five times or more by weight with respect to the photocatalyst.   The deodorizing composition according to claim 1, wherein the photocatalyst is 4 to 16% by weight, the inorganic adsorbent is 12 to 23% by weight, and the hornfels ore is 63 to 80% by weight.   The deodorizing composition according to claim 1, wherein the photocatalyst is made of titanium dioxide.   The deodorizing composition according to claim 1, wherein the inorganic adsorbent is made of zeolite.

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