CN109020388A - A kind of diatom ooze material and preparation method thereof of non-photocatalyst-type purification air formaldehyde - Google Patents
A kind of diatom ooze material and preparation method thereof of non-photocatalyst-type purification air formaldehyde Download PDFInfo
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- CN109020388A CN109020388A CN201811016982.8A CN201811016982A CN109020388A CN 109020388 A CN109020388 A CN 109020388A CN 201811016982 A CN201811016982 A CN 201811016982A CN 109020388 A CN109020388 A CN 109020388A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The invention discloses a kind of diatom ooze materials and preparation method thereof of non-photocatalyst-type purification air formaldehyde.Diatom ooze of the invention is based on catalytic oxidation decomposing formaldehyde, utilizes MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst is as composite catalyst, using the oxygen in air as oxidant, under non-illumination condition, converts CO for the formaldehyde in air2And H2O can also show the ability of preferable decomposing formaldehyde in the case where a variety of volatile contaminants coexist.The present invention optimizes each group distribution ratio, the diatom ooze material adhesion strength is high, and humidity is good, and air cleaning rate is high, green and pollution-free by reasonably selecting component.
Description
Technical field
The present invention relates to diatom ooze technical fields, and in particular to a kind of diatom ooze material of non-photocatalyst-type purification air formaldehyde
Material and preparation method thereof.
Background technique
With the development of social economy and the raising of living standards of the people, buildings decoration material category is more and more,
Decorate also increasingly complex.Since interior decoration ornament materials slowly releases pollutant, indoor air pollutants are discharged easily
It is exceeded, if indoor air purification cannot be carried out in time, people's health certainly will be seriously threatened.Formaldehyde be a kind of irritating smell,
Toxicity is relatively strong, high volatility substance, is one of the major pollutants of current room air, can generate not to human respiratory tract
Good influence.With the improvement of people's environmental awareness, the decoration material of various removal formaldehyde comes into being.
Diatomite has porous structure, has bigger specific surface area and powerful absorption property, stability is strong, can
Gas pollutant effectively in absorption air.Diatom ooze with diatomite be main functional filler, addition inorganic coagulation material and
Auxiliary agent, mixing the ingredients such as titanium dioxide in diatomite has the effect of decomposing formaldehyde, and diatom ooze material does not discharge nuisance
Matter is a kind of very environmentally friendly decoration material without sharp aroma.However, titanium dioxide belongs to photocatalyst, need in light
Could have the effect of that catalysis oxidation removes formaldehyde according under the conditions of, and photocatalysis efficiency is lower, if under unglazed dark condition
Catalysis oxidation ability is not had, purifying air, the effect is unsatisfactory.
Summary of the invention
It is an object of the invention to a kind of non-photocatalyst-type purification air first is provided in place of overcome the deficiencies in the prior art
Diatomite material of aldehyde and preparation method thereof improves diatomite and purifies the air of a room under the conditions of non-light efficiency.
To achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of diatom ooze material of non-photocatalyst-type purification air formaldehyde, comprises the following components in parts by weight: diatomite 30
~35 parts, 10~15 parts of calcium carbonate, 6~15 parts of kaolin, 3~6 parts of portland cement, hydroxypropyl methyl cellulose 0.8~2
Part, 0.5~1.5 part of flax fiber, 3~6 parts of rubber powder, 20~25 parts of silica flour, 0.2~0.3 part of dispersing agent, MnO2/ diatomite
3~6 parts of catalyst, 0.5~0.8 part of Au/ diatomite catalyst and Au/CeO20.2~1 part of catalyst.
The present invention uses MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Compound the urging of catalyst composition
Formaldehyde can be catalytically decomposed in agent, promote the ability of diatom ooze materials purification room air.With traditional optically catalytic TiO 2
Agent is compared, MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst can it is unglazed under room temperature
The formaldehyde in air is converted CO by decomposing formaldehyde2And H2O.In actual use, the conversion of the formaldehyde of single catalyst
The conversion ratio of influence of the rate vulnerable to initial concentration of formaldehyde, usual formaldehyde is reduced with the increase of initial concentration of formaldehyde, and not
With catalyst formaldehyde conversion ratio it is also different;Meanwhile compared with the condition of formaldehyde individualism, a variety of volatility
Under conditions of pollutant coexists, the conversion ratio of formaldehyde is decreased obviously.The present invention by compounding, overcomes three kinds of different catalyst
Defect existing for single catalyst, collaboration improve the conversion ratio of formaldehyde.
The preferred embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, it is described
MnO2In/diatomite catalyst, MnO2Weight ratio with diatomite is 0.3~0.8:1.
The preferred embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, it is described
In Au/ diatomite catalyst, the weight ratio of Au and diatomite is 0.02~0.03:1.
The preferred embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, it is described
MnO2The partial size of diatomite in/diatomite catalyst is 50~150nm;Diatomite in the Au/ diatomite catalyst
Partial size is 50~200nm.
The partial size and dispersion degree of diatomite support and the activity of catalyst are closely related, and excessive will lead to of diatomite partial size is urged
Changing activity reduces, and diatomite partial size is too small easy to reunite, reduces dispersion degree, invents everybody by test discovery, by MnO2/ diatomite
The size controlling of diatomite in catalyst is 50~150nm, and the size controlling of the diatomite in Au/ diatomite catalyst is 50
~200nm, within this range, diatomite support are conducive to load the MnO of small size2Or Au particle, enhance the reduction of catalyst
Ability.
The preferred embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, it is described
Au/CeO2In catalyst, Au and CeO2The weight ratio of catalyst is 0.01~0.05:1.
In the present invention by preferably with MnO on carrier2, Au load capacity, regulation obtain that there is good catalysis oxidation formaldehyde
The catalyst of ability.
The preferred embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, it is described
Au/ diatomite catalyst and Au/CeO2The weight ratio of catalyst is 1:1.
Test discovery, in diatom ooze of the invention in Au/ diatomite catalyst and Au/CeO2The weight ratio of catalyst is 1:
When 1, in the case where a variety of volatile contaminants coexist, the ability of preferable decomposing formaldehyde is still shown.
The preferred embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, including
The component of following parts by weight: 31 parts of diatomite, 14 parts of calcium carbonate, 10 parts of kaolin, 5 parts of portland cement, hydroxypropyl methyl are fine
Tie up plain 1.5 parts, 1.2 parts of flax fiber, 4 parts of rubber powder, 20 parts of silica flour, 0.2 part of dispersing agent, MnO26 parts of/diatomite catalyst,
0.8 part of Au/ diatomite catalyst and Au/CeO20.8 part of catalyst.
The preferred embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, including
The component of following parts by weight: 32 parts of diatomite, 12 parts of calcium carbonate, 12 parts of kaolin, 5 parts of portland cement, hydroxypropyl methyl are fine
Tie up plain 1.8 parts, 1.5 parts of flax fiber, 4 parts of rubber powder, 22 parts of silica flour, 0.2 part of dispersing agent, MnO26 parts of/diatomite catalyst,
0.8 part of Au/ diatomite catalyst and Au/CeO20.8 part of catalyst.
The preferred embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, including
The component of following parts by weight: 34 parts of diatomite, 10 parts of calcium carbonate, 8 parts of kaolin, 4 parts of portland cement, hydroxypropyl methyl fiber
Plain 2 parts, 0.5 part of flax fiber, 4 parts of rubber powder, 24 parts of silica flour, 0.3 part of dispersing agent, MnO26 parts of/diatomite catalyst, Au/ silicon
0.8 part of diatomaceous earth catalyst and Au/CeO20.8 part of catalyst.
By adjusting each group distribution ratio in above-mentioned technical proposal, so that diatom ooze adhesion strength with higher and good
Humidity.
The present invention also provides the preparation methods of the diatom ooze material of above-mentioned non-photocatalyst-type purification air formaldehyde, including
Following steps:
(1) each component raw material is weighed in proportion;
(2) by diatomite, MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst is dropped in mixing
In machine mix 3~4h after, be added calcium carbonate, kaolin, portland cement, hydroxypropyl methyl cellulose, flax fiber, rubber powder,
4~5h of silica flour and dispersant, packaging obtain the diatom ooze material of the non-photocatalyst-type purification air formaldehyde.
The preferred embodiment of the preparation method of diatom ooze material as the non-photocatalyst-type purification air formaldehyde, institute
State MnO2/ diatomite catalyst the preparation method comprises the following steps: diatomite is added in liquor potassic permanganate, after ultrasonic disperse, obtain
Uniform suspension;Suspension is placed in reaction kettle and carries out hydro-thermal process, hydrothermal temperature is 120 DEG C~140 DEG C, the reaction time
For 8~12h;By the suspension centrifugation after hydro-thermal reaction, the MnO is obtained after taking washing of precipitate dry2/ diatomite catalyst.
The preferred embodiment of the preparation method of diatom ooze material as the non-photocatalyst-type purification air formaldehyde, institute
State Au/ diatomite catalyst the preparation method comprises the following steps: prepare HAuCl4Solution adjusts pH to 6.5~7.2, in proportion by diatomite
It is added to HAuCl4In solution, in 55 DEG C~65 DEG C 2~4h of stirring, after centrifugation, take washing of precipitate dry, at 300 DEG C~350 DEG C
2~3h is roasted, the Au/ diatomite catalyst is obtained.
The preferred embodiment of the preparation method of diatom ooze material as the non-photocatalyst-type purification air formaldehyde, institute
State Au/CeO2Catalyst the preparation method comprises the following steps: prepare HAuCl4Solution adjusts pH to 6.5~7.2, by CeO2It is proportionally added into
HAuCl4In solution, in 55 DEG C~65 DEG C 2~4h of stirring, after centrifugation, takes washing of precipitate dry, roast 2 at 300 DEG C~350 DEG C
~3h obtains the Au/CeO2Catalyst.
Compared with prior art, the invention has the benefit that
Diatom ooze material of the invention is based on catalytic oxidation decomposing formaldehyde, with MnO2/ diatomite catalyst, Au/ diatom
Native catalyst and Au/CeO2Catalyst is as composite catalyst, using the oxygen in air as oxidant, in non-illumination condition
Under, CO is converted by the formaldehyde in air2And H2O can also be shown preferably in the case where a variety of volatile contaminants coexist
The ability of decomposing formaldehyde.The present invention is by preferred each group distribution ratio, and the diatom ooze material adhesion strength is high, and humidity is good,
Air cleaning rate is high, green and pollution-free.
Specific embodiment
Purposes, technical schemes and advantages in order to better illustrate the present invention, below in conjunction with specific embodiment to the present invention
It further illustrates.It will be appreciated by those skilled in the art that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
In embodiment, used experimental method is conventional method unless otherwise specified, material used, reagent etc.,
It is commercially available unless otherwise specified.
MnO described in following embodiment2The preparation method of/diatomite catalyst: diatomite is added to liquor potassic permanganate
In, after ultrasonic disperse, obtain uniform suspension;Suspension is placed in reaction kettle and carries out hydro-thermal process, hydrothermal temperature 120
DEG C~140 DEG C, the reaction time is 8~12h;By the suspension centrifugation after hydro-thermal reaction, obtained after taking washing of precipitate dry described
MnO2/ diatomite catalyst.
Au/ diatomite catalyst described in following embodiment the preparation method comprises the following steps: prepare HAuCl4Solution adjusts pH to 6.5
~7.2, diatomite is proportionally added into HAuCl4In solution, in 55 DEG C~65 DEG C 2~4h of stirring, after centrifugation, precipitating is taken to wash
Drying is washed, in 300 DEG C~350 DEG C 2~3h of roasting, obtains the Au/ diatomite catalyst.
Au/CeO described in following embodiment2Catalyst the preparation method comprises the following steps: prepare HAuCl4Solution, adjusting pH to 6.5~
7.2, by CeO2It is proportionally added into HAuCl4In solution, in 55 DEG C~65 DEG C 2~4h of stirring, after centrifugation, take washing of precipitate dry
It is dry, in 300 DEG C~350 DEG C 2~3h of roasting, obtain the Au/CeO2Catalyst.
The influence of 1 composite catalyst of embodiment proportion PARA FORMALDEHYDE PRILLS(91,95) purifying property
The diatom ooze material of non-photocatalyst-type purification air formaldehyde described in the present embodiment comprises the following components in parts by weight:
31 parts of diatomite, 12 parts of calcium carbonate, 15 parts of kaolin, 4 parts of portland cement, 1.3 parts of hydroxypropyl methyl cellulose, flax fiber
1 part, 4 parts of rubber powder, 8 parts of silica flour and 0.2 part of dispersing agent, wherein MnO2/ diatomite catalyst, Au/ diatomite catalyst and
Au/CeO2The content difference of catalyst is as shown in table 1.
Wherein, the MnO2In/diatomite catalyst, MnO2Weight ratio with diatomite is 0.5:1, the Au/ diatomite
In catalyst, the weight ratio of Au and diatomite is 0.02:1, the Au/CeO2In catalyst, Au and CeO2The weight ratio of catalyst
For 0.03:1.
The preparation method of the diatom ooze material of non-photocatalyst-type purification air formaldehyde described in the present embodiment, including following step
It is rapid:
(1) each component raw material is weighed in proportion;
(2) by diatomite, MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst is dropped in mixing
In machine mix 3~4h after, be added calcium carbonate, kaolin, portland cement, hydroxypropyl methyl cellulose, flax fiber, rubber powder,
4~5h of silica flour and dispersant, packaging obtain the diatom ooze material of the non-photocatalyst-type purification air formaldehyde.
Unglazed, and under formaldehyde, toluene and dimethylbenzene concurrent conditions, reference standard JC/T2177-2013 is to above-mentioned preparation
The purifying formaldehyde performance of obtained diatom ooze material is detected, and the results are shown in Table 1.
Table 1
As seen from the results in Table 1, Au/ diatomite catalyst and Au/CeO2The purifying formaldehyde performance that catalyst is used in compounding is bright
It is aobvious to be used alone better than the two, and in diatom ooze of the invention in Au/ diatomite catalyst and Au/CeO2The weight ratio of catalyst
When for 1:1, in the case where a variety of volatile contaminants coexist, the ability of preferable decomposing formaldehyde is still shown.
Embodiment 2
The diatom ooze material of non-photocatalyst-type purification air formaldehyde described in the present embodiment is substantially the same manner as Example 1, different
Place is distinguished as shown in table 2 in catalyst content in this present embodiment.
Table 2
The purifying formaldehyde performance of the above-mentioned diatom ooze material being prepared is detected.Detection method is the same as embodiment 1, knot
Fruit is as shown in table 2.
As shown in Table 2, the purifying formaldehyde performance of the diatom ooze is with MnO2After the content of/diatomite catalyst is in first increasing
Reduced trend, when its content is 6 parts by weight, the purifying formaldehyde effect of diatom ooze is best, and three's catalyst has purification first
The synergistic function of aldehyde.
Embodiment 3
A kind of embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, the present embodiment
The diatom ooze material of the non-photocatalyst-type purification air formaldehyde comprises the following components in parts by weight: 31 parts of diatomite, carbonic acid
14 parts of calcium, 10 parts of kaolin, 5 parts of portland cement, 1.5 parts of hydroxypropyl methyl cellulose, 1.2 parts of flax fiber, 4 parts of rubber powder,
20 parts of silica flour, 0.2 part of dispersing agent, MnO26 parts of/diatomite catalyst, 0.8 part of Au/ diatomite catalyst and Au/CeO2Catalysis
0.8 part of agent, wherein the MnO2In/diatomite catalyst, MnO2Weight ratio with diatomite is 0.5:1, the Au/ diatomite
In catalyst, the weight ratio of Au and diatomite is 0.03:1, the Au/CeO2In catalyst, Au and CeO2The weight ratio of catalyst
For 0.04:1.
The preparation method of the diatom ooze material of non-photocatalyst-type purification air formaldehyde described in the present embodiment, including following step
It is rapid:
(1) each component raw material is weighed in proportion;
(2) by diatomite, MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst is dropped in mixing
In machine mix 3~4h after, be added calcium carbonate, kaolin, portland cement, hydroxypropyl methyl cellulose, flax fiber, rubber powder,
4~5h of silica flour and dispersant, packaging obtain the diatom ooze material of the non-photocatalyst-type purification air formaldehyde.
Embodiment 4
A kind of embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, the present embodiment
The diatom ooze material of the non-photocatalyst-type purification air formaldehyde comprises the following components in parts by weight: 32 parts of diatomite, carbonic acid
12 parts of calcium, 12 parts of kaolin, 5 parts of portland cement, 1.8 parts of hydroxypropyl methyl cellulose, 1.5 parts of flax fiber, 4 parts of rubber powder,
22 parts of silica flour, 0.2 part of dispersing agent, MnO26 parts of/diatomite catalyst, 0.8 part of Au/ diatomite catalyst and Au/CeO2Catalysis
0.8 part of agent, wherein the MnO2In/diatomite catalyst, MnO2Weight ratio with diatomite is 0.6:1, the Au/ diatomite
In catalyst, the weight ratio of Au and diatomite is 0.02:1, the Au/CeO2In catalyst, Au and CeO2The weight ratio of catalyst
For 0.05:1.
The preparation method of the diatom ooze material of non-photocatalyst-type purification air formaldehyde described in the present embodiment, including following step
It is rapid:
(1) each component raw material is weighed in proportion;
(2) by diatomite, MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst is dropped in mixing
In machine mix 3~4h after, be added calcium carbonate, kaolin, portland cement, hydroxypropyl methyl cellulose, flax fiber, rubber powder,
4~5h of silica flour and dispersant, packaging obtain the diatom ooze material of the non-photocatalyst-type purification air formaldehyde.
Embodiment 5
A kind of embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, the present embodiment
The diatom ooze material of the non-photocatalyst-type purification air formaldehyde comprises the following components in parts by weight: 34 parts of diatomite, carbonic acid
10 parts of calcium, 8 parts of kaolin, 4 parts of portland cement, 2 parts of hydroxypropyl methyl cellulose, 0.5 part of flax fiber, 4 parts of rubber powder, quartz
24 parts of powder, 0.3 part of dispersing agent, MnO26 parts of/diatomite catalyst, 0.8 part of Au/ diatomite catalyst and Au/CeO2Catalyst 0.8
Part, wherein the MnO2In/diatomite catalyst, MnO2Weight ratio with diatomite is 0.6:1, the Au/ diatomite catalysis
In agent, the weight ratio of Au and diatomite is 0.025:1, the Au/CeO2In catalyst, Au and CeO2The weight ratio of catalyst is
0.05:1。
The preparation method of the diatom ooze material of non-photocatalyst-type purification air formaldehyde described in the present embodiment, including following step
It is rapid:
(1) each component raw material is weighed in proportion;
(2) by diatomite, MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst is dropped in mixing
In machine mix 3~4h after, be added calcium carbonate, kaolin, portland cement, hydroxypropyl methyl cellulose, flax fiber, rubber powder,
4~5h of silica flour and dispersant, packaging obtain the diatom ooze material of the non-photocatalyst-type purification air formaldehyde.
Embodiment 6
A kind of embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, the present embodiment
The diatom ooze material of the non-photocatalyst-type purification air formaldehyde comprises the following components in parts by weight: 30 parts of diatomite, carbonic acid
15 parts of calcium, 15 parts of kaolin, 6 parts of portland cement, 0.8 part of hydroxypropyl methyl cellulose, 1.5 parts of flax fiber, 3 parts of rubber powder,
20 parts of silica flour, 0.25 part of dispersing agent, MnO26 parts of/diatomite catalyst, 0.6 part of Au/ diatomite catalyst and Au/CeO2Catalysis
0.6 part of agent, wherein the MnO2In/diatomite catalyst, MnO2Weight ratio with diatomite is 0.3:1, the Au/ diatomite
In catalyst, the weight ratio of Au and diatomite is 0.02:1, the Au/CeO2In catalyst, Au and CeO2The weight ratio of catalyst
For 0.02:1.
The preparation method of the diatom ooze material of non-photocatalyst-type purification air formaldehyde described in the present embodiment, including following step
It is rapid:
(1) each component raw material is weighed in proportion;
(2) by diatomite, MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst is dropped in mixing
In machine mix 3~4h after, be added calcium carbonate, kaolin, portland cement, hydroxypropyl methyl cellulose, flax fiber, rubber powder,
4~5h of silica flour and dispersant, packaging obtain the diatom ooze material of the non-photocatalyst-type purification air formaldehyde.
Embodiment 7
A kind of embodiment of diatom ooze material as non-photocatalyst-type purification air formaldehyde of the present invention, the present embodiment
The diatom ooze material of the non-photocatalyst-type purification air formaldehyde comprises the following components in parts by weight: 35 parts of diatomite, carbonic acid
10 parts of calcium, 6 parts of kaolin, 3 parts of portland cement, 2 parts of hydroxypropyl methyl cellulose, 0.5 part of flax fiber, 6 parts of rubber powder, quartz
25 parts of powder, 0.3 part of dispersing agent, MnO26 parts of/diatomite catalyst, 0.5 part of Au/ diatomite catalyst and Au/CeO2Catalyst 0.5
Part, wherein the MnO2In/diatomite catalyst, MnO2Weight ratio with diatomite is 0.3:1, the Au/ diatomite catalysis
In agent, the weight ratio of Au and diatomite is 0.02:1, the Au/CeO2In catalyst, Au and CeO2The weight ratio of catalyst is
0.01:1。
The preparation method of the diatom ooze material of non-photocatalyst-type purification air formaldehyde described in the present embodiment, including following step
It is rapid:
(1) each component raw material is weighed in proportion;
(2) by diatomite, MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst is dropped in mixing
In machine mix 3~4h after, be added calcium carbonate, kaolin, portland cement, hydroxypropyl methyl cellulose, flax fiber, rubber powder,
4~5h of silica flour and dispersant, packaging obtain the diatom ooze material of the non-photocatalyst-type purification air formaldehyde.
Unglazed, and under formaldehyde, toluene and dimethylbenzene concurrent conditions, reference standard JC/T2177-2013 to embodiment 3~
The purifying formaldehyde performance and purifying formaldehyde effect persistence of the 7 diatom ooze materials being prepared are detected, as a result such as 3 institute of table
Show.
Table 3
Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | |
Purifying formaldehyde performance (%) | 94 | 92 | 95 | 91 | 90 |
Purifying formaldehyde effect persistence (%) | 77 | 75 | 73 | 73 | 70 |
As seen from the results in Table 3, in the case where a variety of volatile contaminants coexist, diatom ooze of the invention has good
Purifying formaldehyde persistence ability.
The adhesion strength of 3~7 diatom ooze material of embodiment, humidity, mould proof is detected according to standard JC/T2177-2013
Bacterium performance and mould proof endurance quality, the results are shown in Table 4, and the results are shown in Table 4.
Table 4
The harmful substance contents of the diatom ooze material of embodiment 3~7 are detected according to standard JC/T2177-2013, as a result such as
Shown in table 5.
Table 5
The detection of VOC content is limited to 1g/kg in table 5;The detection of benzene, toluene, ethylbenzene, dimethylbenzene summation is limited to 50mg/kg;
The detection of free formaldehyde is limited to 5mg/kg;The detection of soluble heavy metal is limited to 10mg/kg.
As seen from the results in Table 5, without soluble heavy metals, volatile organic compound such as lead in diatom ooze material of the invention
Object or free formaldehyde, not can cause environmental pollution, safety and environmental protection.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range is protected, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should
Understand, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the essence of technical solution of the present invention
And range.
Claims (10)
1. a kind of diatom ooze material of non-photocatalyst-type purification air formaldehyde, which is characterized in that comprise the following components in parts by weight:
30~35 parts of diatomite, 10~15 parts of calcium carbonate, 6~15 parts of kaolin, 3~6 parts of portland cement, hydroxypropyl methyl cellulose
0.8~2 part, 0.5~1.5 part of flax fiber, 3~6 parts of rubber powder, 20~25 parts of silica flour, 0.2~0.3 part of dispersing agent, MnO2/
3~6 parts of diatomite catalyst, 0.5~0.8 part of Au/ diatomite catalyst and Au/CeO20.2~1 part of catalyst.
2. the diatom ooze material of non-photocatalyst-type purification air formaldehyde according to claim 1, which is characterized in that described
MnO2In/diatomite catalyst, MnO2Weight ratio with diatomite is 0.3~0.8:1.
3. the diatom ooze material of non-photocatalyst-type purification air formaldehyde according to claim 1, which is characterized in that described
In Au/ diatomite catalyst, the weight ratio of Au and diatomite is 0.02~0.03:1.
4. the diatom ooze material of non-photocatalyst-type purification air formaldehyde according to claim 2 or 3, which is characterized in that institute
State MnO2The partial size of diatomite in/diatomite catalyst is 50~150nm;Diatomite in the Au/ diatomite catalyst
Partial size be 50~200nm.
5. the diatom ooze material of non-photocatalyst-type purification air formaldehyde according to claim 1, which is characterized in that described
Au/CeO2In catalyst, Au and CeO2The weight ratio of catalyst is 0.01~0.05:1.
6. the diatom ooze material of non-photocatalyst-type purification air formaldehyde according to claim 1, which is characterized in that described
Au/ diatomite catalyst and Au/CeO2The weight ratio of catalyst is 1:1.
7. the diatom ooze material of non-photocatalyst-type purification air formaldehyde according to claim 1, which is characterized in that including with
The component of lower parts by weight: 31 parts of diatomite, 14 parts of calcium carbonate, 10 parts of kaolin, 5 parts of portland cement, hydroxypropyl methyl fiber
Plain 1.5 parts, 1.2 parts of flax fiber, 4 parts of rubber powder, 20 parts of silica flour, 0.2 part of dispersing agent, MnO26 parts of/diatomite catalyst, Au/
0.8 part of diatomite catalyst and Au/CeO20.8 part of catalyst.
8. the diatom ooze material of non-photocatalyst-type purification air formaldehyde according to claim 1, which is characterized in that including with
The component of lower parts by weight: 32 parts of diatomite, 12 parts of calcium carbonate, 12 parts of kaolin, 5 parts of portland cement, hydroxypropyl methyl fiber
Plain 1.8 parts, 1.5 parts of flax fiber, 4 parts of rubber powder, 22 parts of silica flour, 0.2 part of dispersing agent, MnO26 parts of/diatomite catalyst, Au/
0.8 part of diatomite catalyst and Au/CeO20.8 part of catalyst.
9. the diatom ooze material of non-photocatalyst-type purification air formaldehyde according to claim 1, which is characterized in that including with
The component of lower parts by weight: 34 parts of diatomite, 10 parts of calcium carbonate, 8 parts of kaolin, 4 parts of portland cement, hydroxypropyl methyl cellulose
2 parts, 0.5 part of flax fiber, 4 parts of rubber powder, 24 parts of silica flour, 0.3 part of dispersing agent, MnO26 parts of/diatomite catalyst, Au/ diatom
0.8 part of native catalyst and Au/CeO20.8 part of catalyst.
10. the preparation side of the diatom ooze material of described in any item non-photocatalyst-type purification air formaldehydes according to claim 1~9
Method, which comprises the following steps:
(1) each component raw material is weighed in proportion;
(2) by diatomite, MnO2/ diatomite catalyst, Au/ diatomite catalyst and Au/CeO2Catalyst is dropped in mixing machine
After mixing 3~4h, calcium carbonate, kaolin, portland cement, hydroxypropyl methyl cellulose, flax fiber, rubber powder, quartz is added
4~5h of powder and dispersant, packaging obtain the diatom ooze material of the non-photocatalyst-type purification air formaldehyde.
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