CN102259024A - Nano Au catalyst for glucose oxidation and preparation and use method thereof - Google Patents
Nano Au catalyst for glucose oxidation and preparation and use method thereof Download PDFInfo
- Publication number
- CN102259024A CN102259024A CN 201110145833 CN201110145833A CN102259024A CN 102259024 A CN102259024 A CN 102259024A CN 201110145833 CN201110145833 CN 201110145833 CN 201110145833 A CN201110145833 A CN 201110145833A CN 102259024 A CN102259024 A CN 102259024A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- glucose oxidase
- water
- hours
- hts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses a nano Au catalyst for glucose oxidation and a preparation and use method thereof. The method disclosed by the invention comprises the following steps: weighing 1.0g titanium-silicon molecular sieve vector, 2.1-16.8mL chloroauric acid solution with 10g/L; adding deionized water to be uniformly mixed; adding to a water bath; rising the temperature to 60 DEG C; adjusting the pH value to 11-12 by utilizing ammonia water; refluxing for 1 hour at 100-110 DEG C; after completing, filtering; bleaching for 5-10 minutes by utilizing 4.0M ammonia water; washing for 2-4 times by utilizing 10-20mL hot water at 70-90 DEG C; washing off chloride ions; drying for 2 hours at 100-110 DEG C; and finally, roasting for 3 hours in the air at 250-350 DEG C to obtain the catalyst for glucose oxidation. The reaction uses water as a solvent and oxygen as an oxidizer to prepare sodium gluconate through glucose oxidation under the action of the catalyst in alkali conditions. The invention is used for preparing sodium gluconate and has the characteristics of high production efficiency, simplicity and convenience in process procedures and the like, and the products are easy to separate.
Description
Technical field
The present invention relates to a kind of nano catalyst and preparation and using method that is used for glucose oxidase.
Background technology
Gluconic acid and derivative thereof as gluconate, glucolactone etc., are the important multiduty organic chemical industry's products of a class.Gluconic acid can be used for dairy processing industry, prevents the mammary calculus precipitation; Be used for food industry, in food formula, make acid; In addition, also can be used as the antisettling agent etc. of auxiliary agent, the agent of leather aluming, the metal-derusting agent of processing of cleaning agent additive, fabric and metal processing, biodegradable chelating agent, secondary oil recovery.The zinc of gluconic acid and derivative thereof such as gluconic acid, sodium, calcium, ferrous plasma salt have a wide range of applications equally in industries such as chemical industry, food, medicine, light industry.For example, the gluconic acid sodium salt of technical grade is widely used as cement retarder in building industry, can effectively prevent solidifying in the commercial concrete transportation, caking phenomenon; Also can be used as steel surface cleaning agent, vial scavenger specially, anti-incrustation corrosion inhibitor.The gluconic acid sodium salt of food-grade and pharmaceutical grade can be regulated the human acid-base balance, guarantees neural normal effect, effectively prevents the generation of low sodium syndrome, also can be used as food additives and medicine intermediate etc.
The industrial production of gluconic acid mainly is a biological fermentation process both at home and abroad at present.The shortcoming of the method is that the cycle is long to the temperature requirement height, and accessory substance is many, and product purity is low etc.Advantages such as and the heterogeneous catalytic oxidation method is with its productive rate height, and the few and product of accessory substance is easily separated just cause people's attention gradually from twentieth century beginning in 70 years.
The more catalyst of research has (GB 1208101, and JP 8007230) such as Pt/C, Pd/C, catalytic efficiency height at present, but inactivation is very fast, often adds Bi, Ru, Cd, Se, metals such as Co, form bimetallic or many metal composites catalyst (US Patent 5132452, US 4834173, and DE-OS 2936652), make catalyst performance be greatly improved, but still have the phenomenon of metal loss, its cycle efficieny is reduced.
Nano catalyst has more and more caused people's attention with its good selectivity and good low temperature active.In China, nm of gold has had certain research basis (CN 1594265, and CN 101249443, and CN 101805256) for the catalytic oxidation of glucose, simply introduces its composition and preparation method, to the selecting property of glucose more than 99%.The selective oxidation of nano gold catalysis glucose has favorable industrial application prospect.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of nano catalyst and preparation and using method that is used for glucose oxidase is provided.
The catalyst that is used for glucose oxidase is made up of Au and HTS, and wherein Au is as the main active component of catalyst, and its quality percentage composition is 1.0～8.0%; HTS is as the carrier of catalyst, its quality percentage composition 92.0～99.0%.
The Preparation of catalysts method that is used for glucose oxidase is: get 1.0g HTS carrier, 10g/L chlorauric acid solution 2.1 ~ 16.8mL, adding deionized water mixes, place water-bath, be warming up to 60 ℃, transfer pH to 11 ~ 12 with ammoniacal liquor, 100 ~ 110 ℃ were refluxed 1 hour, finish the back suction filtration, 4.0M ammoniacal liquor rinsing 5 ~ 10 minutes, 70 ~ 90 ℃ of hot water of 10 ~ 20mL are taken out and are washed 2 ~ 4 times, the flush away chlorion, and 100 ~ 110 ℃ are following dry 2 hours, 250 ~ 350 ℃ of following roastings 3 hours in air at last obtain being used for the catalyst of glucose oxidase.
The using method that is used for the catalyst of glucose oxidase is: with mass percent concentration is that 5% D/W and the catalyst that is used for glucose oxidase react, the consumption of glucose is 1000:1～1000:8 with the mol ratio that is used for the catalyst nm of gold of glucose oxidase, reaction temperature is 60 ℃, reaction pressure is a normal pressure, speed aerating oxygen with 39mL/min, add 0.5mol/L NaOH, make the pH value constant 9.5.
The present invention intends supported nanometer gold catalyst on HTS, to improve catalytic activity, keeps good selectivity simultaneously.
Description of drawings
Fig. 1 is a 1wt.% Au/ HTS transmission electron microscope picture.
The specific embodiment
Below be embodiments of the invention.
Embodiment 1: the preparation of catalyst A.
Get 1.0g HTS, 10g/L chlorauric acid solution 2.1mL, add deionized water and mix, place water-bath, be warming up to 60 ℃, transfer pH to 12 with ammoniacal liquor, 100 ℃ were refluxed 1 hour, finish the back suction filtration, 4.0M ammoniacal liquor rinsing 5 minutes, 70 ℃ of hot water of 20mL are taken out and are washed 4 times, the flush away chlorion, 100 ℃ dry 2 hours down, 250 ℃ of following roastings 3 hours in air at last obtain catalyst A, its composition sees Table 1, and transmission electron microscope picture is seen Fig. 1.
Embodiment 2: the preparation of catalyst B.
Get 1.0g HTS, 10g/L chlorauric acid solution 4.2mL, add deionized water and mix, place water-bath, be warming up to 60 ℃, transfer pH to 12 with ammoniacal liquor, 110 ℃ were refluxed 1 hour, finish the back suction filtration, 4.0M ammoniacal liquor rinsing 8 minutes, 90 ℃ of hot water of 20mL are taken out and are washed 4 times, the flush away chlorion, drying is 2 hours under 106 ℃, 300 ℃ of following roastings 3 hours in air at last obtain catalyst B, and its composition sees Table 1.
Embodiment 3: the preparation of catalyst C.
Get 1.0g HTS, 10g/L chlorauric acid solution 8.4mL, add deionized water and mix, place water-bath, be warming up to 60 ℃, transfer pH to 11 with ammoniacal liquor, 105 ℃ were refluxed 1 hour, finish the back suction filtration, 4.0M ammoniacal liquor rinsing 10 minutes, 70 ℃ of hot water of 20mL are taken out and are washed 4 times, the flush away chlorion, drying is 2 hours under 110 ℃, 350 ℃ of following roastings 3 hours in air at last obtain catalyst C, and its composition sees Table 1.
Embodiment 4: the preparation of catalyst D.
Get 1.0g HTS, 10g/L chlorauric acid solution 12.6mL, add deionized water and mix, place water-bath, be warming up to 60 ℃, transfer pH to 12 with ammoniacal liquor, 110 ℃ were refluxed 1 hour, finish the back suction filtration, 4.0M ammoniacal liquor rinsing 10 minutes, 90 ℃ of hot water of 10mL are taken out and are washed 2 times, the flush away chlorion, drying is 2 hours under 110 ℃, 300 ℃ of following roastings 3 hours in air at last obtain catalyst D, and its composition sees Table 1.
Embodiment 5: the preparation of catalyst E.
Get 1.0g HTS, 10g/L chlorauric acid solution 16.8mL, add deionized water and mix, place water-bath, be warming up to 60 ℃, transfer pH to 12 with ammoniacal liquor, 1008 ℃ were refluxed 1 hour, finish the back suction filtration, 4.0M ammoniacal liquor rinsing 9 minutes, 80 ℃ of hot water of 20mL are taken out and are washed 3 times, the flush away chlorion, drying is 2 hours under 110 ℃, 350 ℃ of following roastings 3 hours in air at last obtain catalyst E, and its composition sees Table 1.
The composition of table 1 catalyst A ~ E
Embodiment 6: the catalytic performance test of catalyst A ~ E.
Take by weighing the 1.76g Dextrose Monohydrate, add the 25mL deionized water, being made into mass percent concentration is 5% D/W, the catalyst that adding 0.18g is used for glucose oxidase reacts, reaction temperature is 60 ℃, and reaction pressure is a normal pressure, with the speed aerating oxygen of 39mL/min, add 0.5mol/L NaOH, make the pH value constant 9.5.Reaction result sees Table 2.
The catalytic performance test of table 2 catalyst A ~ E
| Catalyst | Reaction time/h | Conversion ratio/% |
| A | 0.50 | 33.9 |
| B | 0.50 | 74.0 |
| C | 0.38 | 100.0 |
| D | 0.50 | 79.0 |
| E | 0.50 | 32.6 |
Claims (3)
1. a catalyst that is used for glucose oxidase is characterized in that, it is made up of Au and HTS, and wherein Au is as the main active component of catalyst, and its quality percentage composition is 1.0～8.0%; HTS is as the carrier of catalyst, its quality percentage composition 92.0～99.0%.
2. Preparation of catalysts method that is used for glucose oxidase as claimed in claim 1, it is characterized in that: get 1.0g HTS carrier, 10g/L chlorauric acid solution 2.1 ~ 16.8mL, adding deionized water mixes, place water-bath, be warming up to 60 ℃, transfer pH to 11 ~ 12 with ammoniacal liquor, 100 ~ 110 ℃ were refluxed 1 hour, finish the back suction filtration, 4.0M ammoniacal liquor rinsing 5 ~ 10 minutes, 70 ~ 90 ℃ of hot water of 10 ~ 20mL are taken out and are washed 2 ~ 4 times, the flush away chlorion, 100 ~ 110 ℃ dry 2 hours down, 250 ~ 350 ℃ of following roastings 3 hours in air at last obtain being used for the catalyst of glucose oxidase.
3. using method that is used for the catalyst of glucose oxidase as claimed in claim 1, it is characterized in that: with mass percent concentration is that 5% D/W and the catalyst that is used for glucose oxidase react, the consumption of glucose is 1000:1～1000:8 with the mol ratio that is used for the catalyst nm of gold of glucose oxidase, reaction temperature is 60 ℃, reaction pressure is a normal pressure, with the speed aerating oxygen of 39mL/min, add 0.5mol/L NaOH, make the pH value constant 9.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110145833 CN102259024A (en) | 2011-06-01 | 2011-06-01 | Nano Au catalyst for glucose oxidation and preparation and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110145833 CN102259024A (en) | 2011-06-01 | 2011-06-01 | Nano Au catalyst for glucose oxidation and preparation and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102259024A true CN102259024A (en) | 2011-11-30 |
Family
ID=45005968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110145833 Pending CN102259024A (en) | 2011-06-01 | 2011-06-01 | Nano Au catalyst for glucose oxidation and preparation and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102259024A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218684A (en) * | 2016-12-09 | 2018-06-29 | 中国科学院大连化学物理研究所 | A kind of method of palladium catalyst catalytic oxidation of glucose preparation of gluconic acid and salt |
| CN108383717A (en) * | 2018-04-18 | 2018-08-10 | 中国石油大学(华东) | A kind of preparation method of biomass-based malonic acid |
| CN110790359A (en) * | 2019-10-28 | 2020-02-14 | 井冈山大学 | Method for treating alkaline papermaking wastewater by adopting nanogold catalyst |
-
2011
- 2011-06-01 CN CN 201110145833 patent/CN102259024A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 《American Chemical Society》 19990204 T. Alexander Nijhuis et al. Direct Epoxidation of Propene Using Gold Dispersed on TS-1 and Other Titanium-Containing Supports 第884页右栏第1段至第3段 1-3 第38卷, * |
| 《Catalysis Today》 20070326 Nadine Thielecke et al. Long-term stability of an Au/Al2O3 catalyst prepared by incipient wetness in continuous-flow glucose oxidation 第266页右栏第1段至第267页左栏第3段 3 第122卷, * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218684A (en) * | 2016-12-09 | 2018-06-29 | 中国科学院大连化学物理研究所 | A kind of method of palladium catalyst catalytic oxidation of glucose preparation of gluconic acid and salt |
| CN108383717A (en) * | 2018-04-18 | 2018-08-10 | 中国石油大学(华东) | A kind of preparation method of biomass-based malonic acid |
| CN108383717B (en) * | 2018-04-18 | 2021-05-11 | 中国石油大学(华东) | Preparation method of biomass-based malonic acid |
| CN110790359A (en) * | 2019-10-28 | 2020-02-14 | 井冈山大学 | Method for treating alkaline papermaking wastewater by adopting nanogold catalyst |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101507917B (en) | Solid base catalyst for synthesizing alkanolamide type compound and preparation method thereof | |
| CN101549292B (en) | Catalyst for synthesizing cyclohexene by hydrogenation of benzene ring and preparing method thereof | |
| CN101632932B (en) | Dimethyl carbonate supported catalyst directly synthesized by methanol and carbon dioxide | |
| JP2013533798A (en) | Catalysts comprising platinum and gold nanoparticles and their use for the oxidation of glucose and methods for preparing such catalysts | |
| CN102616869A (en) | Tetrammine palladium sulphate synthesis method | |
| CN101987827B (en) | Preparing method of organic carboxylic acid amide | |
| CN104193615A (en) | Catalytic oxidation method for 1,2-propanediol | |
| CN106187737A (en) | A kind of method of carbon-supported polynary noble metal catalyst catalytic oxidation of glucose preparation of gluconic acid sodium | |
| CN102259024A (en) | Nano Au catalyst for glucose oxidation and preparation and use method thereof | |
| CN105541588B (en) | A kind of synthetic method of diacetyl | |
| CN109133169B (en) | Bismuth vanadate and preparation method and application thereof | |
| CN107287183A (en) | A kind of preparation method using graphene/titanium oxide composite porous microspheres as the immobilization alpha amylase of carrier | |
| CN103204830B (en) | A kind of cinnamic method of catalyzed oxidation | |
| CN107684921B (en) | Catalyst for converting TMBQ into TMHQ and preparation method thereof | |
| CN101591233B (en) | Method for preparing gluconic acid | |
| CN101249443A (en) | Catalyst for producing gluconic acid sodium salt, method of preparing the same and applications | |
| CN106807366B (en) | Core-shell catalyst for preparing lactic acid and pyruvic acid from glycerol, and preparation and application thereof | |
| CN111302981B (en) | Method for preparing taurine | |
| CN114292167B (en) | Preparation method of vanillin | |
| CN101121643B (en) | Method for preparing hexahydric alcohol | |
| CN101157677B (en) | Method for catalytic preparation of delta-valerolactone by using supported nano-gold catalyst | |
| CN102838469B (en) | Preparation method for palladium acetylacetonate | |
| CN102516136A (en) | Method for preparing 4,4 '- diaminostilbene- 2,2' - disulfonic acid by using DNS sodium salt(4,4 '- dinitrostilbene-2,2' - disulfonic acid sodium salt) | |
| CN104529822A (en) | Production technology for preparing citronellyl nitrile from citronellal | |
| CN102746146A (en) | Preparation method of ethyl acetate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111130 |