CN104258845B - A kind of amorphous Mn oxide and preparation method thereof - Google Patents
A kind of amorphous Mn oxide and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of amorphous Mn oxide and preparation method thereof, described amorphous Mn oxide is the Mn oxide octahedron stratified material of doping K, and the mol ratio between K and Mn is (0.11 0.33): 1.
Description
Technical field
The invention belongs to catalysis material technical field, be specifically related to a kind of potassium element doping, can remove at room temperature
Amorphous Mn oxide of low concentration nitric oxide and preparation method thereof.
Background technology
Amorphous Mn oxide is by the reported first synthesis of Steven L.Suib seminar, afterwards due to the oxygen of its excellence
Change performance and be applied in the oxidation reaction of the oxidation of isopropanol, the light auxiliary catalysis oxidation of ethanol and halogenated hydrocarbons and water.Urge
The abjection ability of agent internal crystal framework oxygen and unnecessary Surface Oxygen cause material to have high catalytic performance.Unbodied manganese aoxidizes
Thing is typically to utilize potassium permanganate and reducing agent (such as Mn2+, oxalic acid and fumaric acid) between simple redox reaction synthesis
Obtain.Two kinds of structures to amorphous Mn oxide most study are octahedron molecular screen (OMS-2) and octahedra stratified material
(OL-1).Both structures all contain K+And hydrone, difference is K in octahedron molecular screen+It is positioned at by MnO with hydrone6
The inside of the passage that octahedron surrounds, and in octahedra stratified material, K+It is positioned at by MnO with hydrone6The layer of octahedra composition
Interlayer.
The nitrogen oxidation that in hemi-closure space, (mainly roads and tunnels and underground parking) produces due to motor vehicle exhaust emission
Substrate concentration is relatively low, the most several ppm.Room-temperature catalytic oxidation for NO is mainly activated carbon, zeolite and transiting metal oxidation
Thing, but above-mentioned material is primarily directed to the NO (higher than hundreds of ppm) of high concentration, and for several ppm NO absorption and
The research of room temperature catalytic oxidation is little.And the manganese oxide reported before for low concentration nitric oxide room temperature remove effect not
Ideal, and catalysqt deactivation is serious in the presence of water.Therefore need room temperature badly and remove the long-acting catalyst of low concentration of NO also
And require that catalyst has good water-resistance.
Summary of the invention
It is contemplated that overcome existing manganese oxide in the defect of aspect of performance, the invention provides the doping of a kind of potassium element
Amorphous manganese oxide and preparation method thereof.
The invention provides the amorphous Mn oxide of a kind of potassium element doping, described amorphous Mn oxide is doping K
Mn oxide octahedron stratified material, the mol ratio between K and Mn is (0.11-0.33): 1.
It is preferred that the aperture of described amorphous Mn oxide is 3.4-7.9, preferably 3.4-5.7nm, specific surface area is
114—252m2/g。
It is preferred that when room temperature, nitric oxide concentration 10ppm, described amorphous Mn oxide is as nitric oxide production
Remover, NO clearance 100% is able to maintain that 10h, NO clearance more than 50% is able to maintain that 22h；When in air, humidity is
50%, during nitric oxide concentration 10ppm, described amorphous Mn oxide reaches as nitric oxide production remover, NO clearance
To 90%, effective time reaches 168 hours.
The invention provides the preparation method of a kind of above-mentioned amorphous Mn oxide, described method includes:
1) preparation is containing potassium permanganate and the mixed solution of reducing agent, wherein, between potassium permanganate and reducing agent mole
Ratio is 1:(1-2)；
2) at 25-40 DEG C so that described mixed solution reacts 8-48 hour under agitation；
3) by step 2) the complete mixed solution of middle reaction carries out sucking filtration, washing obtains dark gum, is dried described black
Color jelly, obtains described amorphous oxide.
It is preferred that step 1) in, reducing agent includes oxalic acid, glucose and/or citric acid.
It is preferred that step 1) in, the manner of formulation of mixed solution is: potassium permanganate solution is added dropwise to reductant solution
In, or reductant solution is added dropwise in potassium permanganate solution.
It is preferred that step 2) in, step 1) in, the mol ratio between potassium permanganate and reducing agent is 1:(1-2), preferably 1:
(1-1.5)。
It is preferred that step 2) in, during reaction, mixed liquor is applied ultrasonic.
It is preferred that step 3) in, it is dried and carries out at 80-150 DEG C.
Beneficial effects of the present invention:
With the redox reaction contrast of the potassium permanganate of report in document before with reducing agent (such as oxalic acid), the present invention has
Following characteristics:
A. potassium permanganate is (1:1)～(1:2) with the mol ratio of oxalic acid, and in document is (1:2)～(1:2.5)
(H.Cao,S.L.Suib,Journal of the American Chemical Society 116(1994)5334-
5342.)；
B. response time longer (8-48h), and document is only 2h；
C. in the product obtained in the present invention, the mol ratio of K/Mn is about 0.3 (being shown in Table 2), and the product of report in document
The mol ratio of middle K/Mn is 0.06, and therefore in the present invention, the K+ content of Mn oxide is reported apparently higher than document, and this is due to grass
The reason that the ratio of acid reduces and the response time extends, thus cause the increase of K+ content the catalytic reaction for following NO to have
Fabulous effect；
The Mn oxide specific surface area of the excellent catalytic effect prepared according to process above flow process can reach 165m2/ g, its
The clearance of room temperature low concentration of NO 100% maintains 10h, and more than 50% maintains 22h.In the case of humidity is 50%, NO goes
Except rate more than 90% maintains 168h.
Accompanying drawing explanation
Fig. 1 shows the XRD diffraction pattern of the Mn oxide synthesized under the conditions of differential responses in the several embodiment of the present invention；
Fig. 2 shows the SEM photograph of the Mn oxide synthesized under the conditions of differential responses in the several embodiment of the present invention；
Fig. 3 shows the TEM figure of the Mn oxide of preparation in an embodiment of the invention, HR-TEM figure and electronics
Diffraction pattern；
Fig. 4 shows that the Mn oxide that in several embodiments of the invention, differential responses condition obtains is low dense for room temperature
The removing performance test of degree NO, test condition is: NO concentration is 10ppm, O2Content is 21%, and carrier gas is N2, air speed is 120,
000mL g-1h-1, reaction temperature is 25 DEG C；
Fig. 5 shows in an embodiment of the invention that Mn oxide is as catalyst pair under the conditions of humidity is 50%
Removing performance test curve in room temperature low concentration nitric oxide.
Detailed description of the invention
The present invention is further illustrated, it should be appreciated that accompanying drawing and following embodiment below in conjunction with accompanying drawing and following embodiment
It is merely to illustrate the present invention, and the unrestricted present invention.
The invention provides a kind of method that room temperature prepares amorphous Mn oxide, and use it for room temperature low concentration one
The catalysis oxidation of nitrogen oxide.The method with potassium permanganate and oxalic acid as reaction raw materials, at room temperature prepare have high-specific surface area,
The mesoporous Mn oxide of homogeneous pore-size distribution.By regulating reactant ratio, response time, reaction temperature and dripping suitable
Sequence, can obtain this unbodied Mn oxide.The Mn oxide of the method synthesis is for roads and tunnels, underground parking
Significant effect is had Deng the removal of room temperature low concentration nitric oxide in the hemi-closure space of city.It addition, this catalyst has
In the air of certain humidity, removal effect more preferably (clearance of nitric oxide 90% can reach 168h).The method belongs to urges
Formed material technical field.
The technical scheme that room temperature prepares amorphous Mn oxide is as follows:
(1) potassium permanganate solution is added dropwise to oxalic acid (as reducing agent)) in solution, form brownish black mixed liquor,
Stirring；
(2) by said mixture sucking filtration, in 80～150 DEG C of temperature ranges, it is dried to obtain product；
(3), in step (1), potassium permanganate is (1:1)～(1:2) with the mol ratio of oxalic acid；
(4), in step (1), the response time is at 8h～48h；
(5), in step (1), reaction temperature is 25～40 DEG C；
(6), in step (1), in course of reaction, potassium permanganate can change with the dropping order of oxalic acid；
(7), in step (1), reducing agent is not limited in oxalic acid, and glucose, citric acid etc. are the most permissible；
(8) in step (1), can be plus ultrasonic in course of reaction；
(9) above-mentioned gained powder body is used for the catalysis oxidation of low concentration of NO, and test condition is: NO concentration is 10ppm, O2Contain
Amount is 21%, and carrier gas is N2, air speed is 120,000mLg-1h-1, reaction temperature is 25 DEG C；
(10) method being used for above-mentioned gained powder body having the room temperature removing low concentration nitric oxide of certain humidity, its feature
It is: O in described oxygen-containing NOx waste gas2Content be about 21%, the content of NO is about 10ppm, and high humidity is about 30%-
80%.
Reducing agent is not limited in oxalic acid, and glucose, citric acid etc. are the most permissible.
Baking temperature is in the range of 80～150 DEG C.
With the redox reaction contrast of potassium permanganate and the oxalic acid of report in document before, the present invention has a following characteristics:
A. potassium permanganate is (1:1)～(1:2) with the mol ratio of oxalic acid, and in document is (1:2)～(1:2.5)
(H.Cao,S.L.Suib,Journal of the American Chemical Society 116(1994)5334-
5342.)；
B. response time longer (8-48h), and document is only 2h；
C. in the product obtained in the present invention, the mol ratio of K/Mn is about 0.3 (being shown in Table 2), and the product of report in document
The mol ratio of middle K/Mn is 0.06, therefore the K of Mn oxide in the present invention+Content is reported apparently higher than document, and this is due to grass
The reason that the ratio of acid reduces and the response time extends, thus cause K+Content increase the catalytic reaction for following NO have
Fabulous effect.
The best Mn oxide specific surface area of the catalytic effect prepared according to process above flow process is 165m2/ g, its room temperature
The clearance of low concentration of NO 100% maintains 10h, and more than 50% maintains 22h.In the case of humidity is 50%, the clearance of NO
More than 90% maintains 168h.
The invention have the characteristics that
(1) the method room temperature using oxidoreduction to prepare synthesizes amorphous Mn oxide.By changing reaction condition,
To obtain product；
(2) equipment and processing technology are simple, low cost, it is simple to popularization and application；
(3) Mn oxide of the method synthesis is obvious for the removal effect of room temperature low concentration of NO, and 100% clearance maintains
10h, more than 50% maintains 22h.And catalyst has good water-resistance, in the case of humidity is 50%, the removal of NO
Rate more than 90% maintains 168h.
Fig. 1 shows the XRD diffraction pattern of the Mn oxide synthesized under the conditions of differential responses in the several embodiment of the present invention；
Fig. 2 shows the SEM photograph of the Mn oxide synthesized under the conditions of differential responses in the several embodiment of the present invention,
Wherein, in (a), the synthesis condition of product is that potassium permanganate solution is added drop-wise in oxalic acid solution, reacts 24h, reaction temperature
Spending 25 DEG C, potassium permanganate is 1:1.5 with the mol ratio of oxalic acid；
B in (), the synthesis condition of product is for changing dropping order in (a), use oxalic acid solution to be added drop-wise to potassium permanganate solution
In, other condition is constant；
C in (), the synthesis condition of product is, only change the mol ratio of potassium permanganate in (a) Yu oxalic acid into 1:1, other condition
Constant；
D in (), the synthesis condition of product is, only change the mol ratio of potassium permanganate in (a) Yu oxalic acid into 1:2, other condition
Constant；
E in (), the synthesis condition of product is, only change the response time in (a) into 8h, and other condition is constant；
F in (), the synthesis condition of product is, only change the response time in (a) into 20h, and other condition is constant；
G in (), the synthesis condition of product is, only change the response time in (a) into 28h, and other condition is constant；
H in (), the synthesis condition of product is, only change the response time in (a) into 48h, and other condition is constant；
I in (), the synthesis condition of product is, only change reaction temperature in (a) into 40 DEG C, and other condition is constant；
Fig. 3 shows the TEM figure of the Mn oxide of preparation in an embodiment of the invention, HR-TEM figure and electronics
Diffraction pattern；
Fig. 4 shows that the Mn oxide that in several embodiments of the invention, differential responses condition obtains is low dense for room temperature
The removing performance test of degree NO, test condition is: NO concentration is 10ppm, O2Content is 21%, and carrier gas is N2, air speed is 120,
000mL g-1h-1, reaction temperature is 25 DEG C, wherein,
The Mn oxide prepared under the conditions of a in Mn representative graph 2 carries out test curve；
The Mn oxide prepared under the conditions of b in Mn-trans representative graph 2 carries out test curve；
The Mn oxide prepared under the conditions of c in Mn-1 representative graph 2 carries out test curve；
The Mn oxide prepared under the conditions of d in Mn-2 representative graph 2 carries out test curve；
The Mn oxide prepared under the conditions of e in Mn-8h representative graph 2 carries out test curve；
The Mn oxide prepared under the conditions of f in Mn-20h representative graph 2 carries out test curve；
The Mn oxide prepared under the conditions of g in Mn-28h representative graph 2 carries out test curve；
The Mn oxide prepared under h in Mn-48h representative graph 2 carries out test curve；
The Mn oxide prepared under the conditions of i in Mn-40 DEG C of representative graph 2 carries out test curve；
Mn is optimal to the removal effect of NO, and the clearance of 100% can maintain 10h, the clearance of 50% to maintain
22h；Secondly, the clearance of 50% is about 15h to the removal effect of Mn-trans, Mn-40 DEG C and Mn-28h.And Mn-48h and Mn-1
Entirely without effect；
Fig. 5 shows in an embodiment of the invention that Mn oxide is as catalyst pair under the conditions of humidity is 50%
Removing performance test curve in room temperature low concentration nitric oxide.
List some exemplary embodiments further below so that the present invention is better described.Should be understood that the present invention is detailed
The above-mentioned embodiment stated, and following example be merely to illustrate the present invention rather than limit the scope of the present invention, this area
Some nonessential improvement of making according to the foregoing of the present invention of technical staff and adjustment belong to the protection of the present invention
Scope.It addition, concrete proportioning in following technological parameter, time, temperature etc. are the most only exemplary, those skilled in the art are permissible
Suitably value is selected in the range of above-mentioned restriction.
Embodiment 1
Described in technical scheme and technological process.1.58g potassium permanganate is dissolved in 60mL deionized water, 1.89g bis-
Oxalic acid hydrate is dissolved in 100mL deionized water, is added dropwise in oxalic acid solution by potassium permanganate solution, 24h is stirred at room temperature；Will
Mixture sucking filtration, washing, then the dark gum 120 DEG C obtained is dried overnight obtains product.Prepared Mn oxide
XRD diffraction pattern is as shown in be denoted as the curve of Mn in accompanying drawing 1, in its surface topography such as accompanying drawing 2 shown in (a), transmission electron microscope shines
Sheet is shown in accompanying drawing 3.Its specific surface area is shown in Table 1.The aperture of amorphous Mn oxide is 4.2nm；
As it is shown in figure 5, use the Mn oxide of the present embodiment as catalyst, in the case of humidity is 50%, NO's
Clearance more than 90% maintains 168h.
Embodiment 2
Response time in embodiment 1 is adjusted to 8h, the material that remaining condition is all consistent with embodiment 1, prepared
(Mn-8h) Mn-8h curve in Fig. 4 is shown in the removing performance test for room temperature low concentration of NO.The aperture of amorphous Mn oxide is
3.7nm。
Embodiment 3
Changing the dropping order in embodiment 1 into oxalic acid solution to be added dropwise in potassium permanganate solution, remaining condition is equal
Consistent with embodiment 1, prepared material (Mn-trans) is shown in Mn-in Fig. 4 for the removing performance test of room temperature low concentration of NO
trans.The aperture of amorphous Mn oxide is 4.1nm.
Embodiment 4
Change the reaction temperature in embodiment 1 into 40 DEG C, the material that remaining condition is all consistent with embodiment 1, prepared
(Mn-40 DEG C) is shown in Fig. 4 for the removing performance test of room temperature low concentration of NO.The aperture of amorphous Mn oxide is 3.6nm.
Embodiment 5
By mixed liquor in embodiment 1 as ultrasonic middle reaction 6h, remaining condition is all consistent with embodiment 1.Amorphous manganese oxygen
The aperture of compound (Mn-ultra) is 5.2nm.
Embodiment 6
Embodiment 1 mesoxalic acid changes into the glucose of 0.05g, and remaining condition is all consistent with embodiment 1.Amorphous manganese aoxidizes
The aperture of thing (Mn-glucose) is 7.9nm.
The specific surface area parameter of the Mn oxide that table 1. differential responses condition obtains
| Sample | Specific surface area | Aperture | Pore volume |
| (m2/g) | (nm) | (cm3/g) | |
| Mn | 166 | 4.2 | 0.18 |
| Mn-trans | 217 | 4.1 | 0.25 |
| Mn-1 | 135 | 4.6 | 0.17 |
| Mn-2 | 252 | 5.7 | 0.46 |
| Mn-8h | 114 | 3.7 | 0.11 |
| Mn-20h | 147 | 3.4 | 0.13 |
| Mn-28h | 156 | 3.4 | 0.15 |
| Mn-48h | 141 | 4.6 | 0.20 |
| Mn-40℃ | 165 | 3.6 | 0.17 |
| Mn-ultra | 175 | 5.2 | 0.41 |
| Mn-glucose | 185 | 7.9 | 0.58 |
。
Table 2 differential responses condition obtains the mol ratio of the K/Mn of product
| Sample | ICP-AES | EDX |
| Mn | 0.307 | 0.34 |
| Mn-trans | 0.309 | 0.26 |
| Mn-1 | 0.336 | 0.33 |
| Mn-2 | 0.111 | 0.12 |
| Mn-8h | 0.323 | 0.49 |
| Mn-20h | 0.324 | 0.38 |
| Mn-28h | 0.324 | 0.34 |
| Mn-48h | 0.329 | 0.30 |
| Mn-40℃ | 0.298 | 0.26 |
| Mn-ultra | 0.342 | 0.32 |
| Mn-glucose | 0.351 | 0.33 |
Claims (8)
1. the amorphous Mn oxide of a potassium element doping, it is characterised in that described amorphous Mn oxide is the manganese of doping K
Oxide octahedron stratified material, the mol ratio between K and Mn is (0.11-0.33): 1, and described amorphous Mn oxide passes through
Prepared by following method:
1) preparation is containing potassium permanganate and the mixed solution of reducing agent, and wherein, the mol ratio between potassium permanganate and reducing agent is
1:(1-2)；
2) at 25-40 DEG C so that described mixed solution reacts 8-48 hour under agitation；
3) by step 2) the complete mixed solution of middle reaction carries out sucking filtration, washing obtains dark gum, is dried described black glue
Shape thing, obtains described amorphous Mn oxide.
Amorphous Mn oxide the most according to claim 1, it is characterised in that the aperture of described amorphous Mn oxide is
3.4-7.9nm, specific surface area is 114 252m2/g。
Amorphous Mn oxide the most according to claim 2, it is characterised in that the aperture of described amorphous Mn oxide is
3.4-5.7 nm。
Amorphous Mn oxide the most according to claim 1, it is characterised in that in step 1), reducing agent includes oxalic acid, Portugal
Grape sugar and/or citric acid.
Amorphous Mn oxide the most according to claim 1, it is characterised in that in step 1), the preparation side of mixed solution
Formula is: is added dropwise in reductant solution by potassium permanganate solution, or is added dropwise in potassium permanganate solution by reductant solution.
Amorphous Mn oxide the most according to claim 1, it is characterised in that step 2) in, during reaction, right
Mixed liquor applies ultrasonic.
Amorphous Mn oxide the most according to claim 1, it is characterised in that in step 3), is dried at 80-150 DEG C
Carry out.
8. the application of amorphous Mn oxide according to any one of a claim 1 to 7, it is characterised in that at room temperature, an oxygen
When changing nitrogen concentration 10ppm, described amorphous Mn oxide can be tieed up as nitric oxide production remover, NO clearance 100%
Holding 10 h, NO clearance more than 50% is able to maintain that 22 h；When in air humidity be 50%, nitric oxide concentration 10ppm time, institute
Stating amorphous Mn oxide and reach 90% as nitric oxide production remover, NO clearance, effective time reaches 168 hours.
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| CN105327697A (en) * | 2015-11-18 | 2016-02-17 | 中国科学院上海硅酸盐研究所 | Method for preparing manganese dioxide catalyst for normal-temperature low-concentration NO catalytic purification with ultrasonic assisted alcohol-water solution method |
| CN106517345B (en) * | 2016-11-15 | 2018-01-05 | 南昌专腾科技有限公司 | Method for preparing ultrafine manganese dioxide by using potassium permanganate and potassium manganate |
| CN107754788B (en) * | 2017-11-02 | 2020-09-18 | 上海纳米技术及应用国家工程研究中心有限公司 | Catalyst for catalytic degradation of formaldehyde at normal temperature and preparation method and application thereof |
| CN108160070A (en) * | 2017-12-20 | 2018-06-15 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of amorphous manganese oxide of potassium ion doping and products thereof and application |
| CN108479688A (en) * | 2018-03-27 | 2018-09-04 | 天津大学 | A kind of nano lamellar manganite adsorbent, preparation method and the usage |
| CN108421524B (en) * | 2018-03-27 | 2020-10-20 | 天津大学 | Supported amorphous manganese oxide, preparation method and application thereof |
| CN108744953B (en) * | 2018-05-22 | 2020-06-30 | 中南大学 | Application method of OMS-2 and/or metal-doped OMS-2 catalytic flue gas denitration |
| CN114534683B (en) * | 2022-02-14 | 2023-12-12 | 华侨大学 | Core-shell type magnetic nano material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2252104A (en) * | 1991-01-28 | 1992-07-29 | British Gas Plc | Hydrocarbon conversion |
| WO2002030825A1 (en) * | 2000-10-13 | 2002-04-18 | The United States Of America, As Represented By The Secretary Of The Navy Naval Research Laboratory | High surface area, nanoscale, mesoporous manganese oxides with controlled solid-pore architectures and method for production thereof |
| CN101402471A (en) * | 2008-10-24 | 2009-04-08 | 中国科学院电工研究所 | Process for producing layered delta-MnO2 nano-particle |
-
2014
- 2014-09-17 CN CN201410475130.0A patent/CN104258845B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2252104A (en) * | 1991-01-28 | 1992-07-29 | British Gas Plc | Hydrocarbon conversion |
| WO2002030825A1 (en) * | 2000-10-13 | 2002-04-18 | The United States Of America, As Represented By The Secretary Of The Navy Naval Research Laboratory | High surface area, nanoscale, mesoporous manganese oxides with controlled solid-pore architectures and method for production thereof |
| CN101402471A (en) * | 2008-10-24 | 2009-04-08 | 中国科学院电工研究所 | Process for producing layered delta-MnO2 nano-particle |
Non-Patent Citations (3)
| Title |
|---|
| "A Review of Porous Manganese Oxide Materials";Stephanie L. Brock et al;《Chemistry of Materials》;19981231;第10卷(第10期);第2619-2628页 * |
| "Highly Efficient Heterogeneous Photooxidation of 2-Propanol to Acetone with Amorphous Manganese Oxide Catalysts";Hui Cao et al;《Journal of the American Chemical Society》;19941231;第116卷(第12期);第5334-5342页 * |
| "Sol-Gel Synthesis of Layered Birnessite-Type Manganese Oxides";Stanton Ching et al;《Inorganic Chemistry》;19971231;第36卷(第5期);摘要，第885页第1栏第4段，第883页第2栏3段至第884页第1栏第1段和第887页第1栏第3段，表1和表2 * |
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