CN104923220A - Method for removing carbon monoxide by using oxidized graphene loading gold platinum catalyst - Google Patents
Method for removing carbon monoxide by using oxidized graphene loading gold platinum catalyst Download PDFInfo
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- CN104923220A CN104923220A CN201510328936.1A CN201510328936A CN104923220A CN 104923220 A CN104923220 A CN 104923220A CN 201510328936 A CN201510328936 A CN 201510328936A CN 104923220 A CN104923220 A CN 104923220A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention relates to a method for removing carbon monoxide by using an oxidized graphene loading gold platinum catalyst, and belongs to the technical field of air purification. After reaction of all kinds of oxide is conducted, supernatant liquor outwells, the supernatant liquor is added to a chloroauric acid and chloroplatinic acid solution, after stirring or shocking or centrifugating is conducted, iron hydroxide, urea, nickel hydroxide and a dispersant are added into the solution, high-temperature drying is conducted, and after drying is conducted, oxidized graphene is obtained and wraps the gold platinum catalyst to remove carbon monoxide. The operation is simple, no secondary pollution exists on the environment, and an embodiment proves that the removal rate of the carbon monoxide is more than 99.7%.
Description
Technical field
The present invention relates to a kind of method that carbon monoxide removed by graphene oxide-loaded golden platinum catalyst, belong to technical field of air purification.
Background technology
Toxic gas, as its name suggests, be exactly that harm is produced to human body, the gas that people is poisoning can be caused, wherein carbon monoxide sterling is colourless, odorless, non-irritating gas, and be the unburnt product of the carbonaceous material such as coal, oil, the solubility in water is very low, pole is insoluble in water, mixes also may set off an explosion with air; Carbon monoxide enter human body after hemoglobin very easily in blood be combined, produce carbonyl haemoglobin, so make hemoglobin can not with combination with oxygen, make people's anoxic, dead time serious.The existence of carbon monoxide is all had in metallurgical, chemistry, graphite electrode manufacture and household fuel gas or coal stove, vehicle exhaust.
In daily life, Long Term Contact Low Level Carbon Monoxide is influential to health, be mainly manifested in: (1) is on the impact of cardiovascular system, when the saturation degree of carbonyl haemoglobin in blood is 8%, venous oxygen tension force reduces, thus cause heart uptake oxygen amount reduce and impel some Cellular Oxidation enzyme system to stop action, carbon monoxide can impel lipoids deposition in trunk to increase in addition, when in blood, carbonyl haemoglobin reaches 15%, the intake of trunk inner membrance to cholesterol can be impelled to increase and promote cholesterol deposition, original arteriosclerosis is increased the weight of, thus impact cardiac muscle, electrocardiogram is occurred abnormal.(2) on neural impact, brain is the organ that in human body, oxygen consumption is maximum, also be the organ the most responsive to anoxic, after carbon monoxide enters human body, cerebral cortex and globus pallidus are injured the most serious, and anoxic also can cause in cellular respiration and suffocate, and occur softening and downright bad, occur that the visual field reduces, hearing disability etc.; The lighter also there will be the neurasthenia disease groups such as headache, dizziness, memory reduction, and has the pareordia sense of urgency and acupuncture sample pain concurrently.(3) cause hypoxemia, occur that the compensatory such as red blood cell, hemoglobin increases, the pathological change that its symptom and anoxic cause is similar, so effectively remove carbon monoxide, purifying air is a very important thing.
The method that current modern technologies remove carbon monoxide has three kinds, is respectively plant null method, coprecipitation and deposition and sinks to the bottom method.
First plant null method refers to and utilizes some can carry out photosynthetic plant absorption carbon monoxide and carbon dioxide, thus releasing oxygen, such as: bracketplant, aloe, brave tail, canna etc., this CO in Air removing method elimination factor is lower, eliminates thorough not; Secondly coprecipitation refers to molysite and chlorine gold mixed dissolution, adds various precipitating reagent, forms the mixture precipitation of gold hydroxide, by obtaining catalyst after precipitate and separate, drying and activation process, and the method operating process more complicated; It is be distributed in the aqueous solution of gold chloride by metal oxide carrier that last deposition sinks to the bottom method, under well-beaten condition, add alkaline matter, control certain temperature and pH value, gold is made to be deposited on carrier surface, be separated subsequently, after drying and activation process, obtain catalyst, but process more complicated the same as coprecipitation.
Summary of the invention
The technical problem that the present invention mainly solves: in use clearance is lower for current various conventional removal carbon monoxide process, operation more complicated, easily environment is caused to the problem of secondary pollution, provide a kind of method that carbon monoxide removed by graphene oxide-loaded golden platinum catalyst, supernatant liquor is removed after being reacted by various oxide, join in gold chloride and platinum acid chloride solution again, through stirring, concussion or centrifugal, iron hydroxide is added again by solution, urea, nickel hydroxide, dispersant carries out hyperthermia drying, a kind of method that carbon monoxide removed by graphene oxide-loaded golden platinum catalyst is obtained after drying.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
(1) 3 ~ 5g graphite powder is poured in 12 ~ 15mL concentrated sulfuric acid, stir in oil bath at temperature is 75 DEG C ~ 80 DEG C, then add potassium persulfate and 2.5 ~ 3.0g phosphorus pentoxide of 2.5 ~ 3.0g, Keep agitation 4.5 ~ 6.5h;
(2) with 0.2mm micropore filtering film vacuum filtration, the filtrate obtained slowly adds the concentrated sulfuric acid of 120 ~ 125mL and the potassium permanganate of 15 ~ 18g under condition of ice bath, stirs 2h without being warming up to 35 DEG C after obvious heat release;
(3) gone by supernatant liquor, it be 0.5mol/L gold chloride and 25 ~ 40mL concentration is in 0.6mol/L platinum acid chloride solution that remaining material joins 20 ~ 30mL concentration, stirs or concussion, centrifugal;
(4) in above-mentioned solution, add 5 ~ 15g urea, 3 ~ 8g iron hydroxide and 5 ~ 10g nickel hydroxide stirring reaction, 10 ~ 30min;
(5) add 3 ~ 5g dispersant again at above-mentioned reactant, described dispersant is the one in zinc stearate, dolomol, barium stearate;
(6) at temperature is 105 DEG C ~ 110 DEG C, dry 1.5h, the catalyst of a mineral carbon load gold platinum can be obtained.
The present invention removes supernatant liquor after being reacted by various oxide, join in gold chloride and platinum acid chloride solution again, through stirring, concussion or centrifugal, again by adding iron hydroxide in solution, urea, nickel hydroxide, dispersant carry out hyperthermia drying, obtains a kind of method that carbon monoxide removed by graphene oxide-loaded golden platinum catalyst after drying
The invention has the beneficial effects as follows:
(1) remove relatively more thorough, substantially increase the clearance of carbon monoxide;
(2) operate fairly simple, for environment also without any secondary pollution;
(3) operating efficiency is higher, and production cost is lower.
Detailed description of the invention
First 3 ~ 5g graphite powder is poured in 12 ~ 15mL concentrated sulfuric acid, stir in oil bath at temperature is 75 DEG C ~ 80 DEG C, then add potassium persulfate and 2.5 ~ 3.0g phosphorus pentoxide of 2.5 ~ 3.0g, Keep agitation 4.5 ~ 6.5h; Then use 0.2mm micropore filtering film vacuum filtration, the filtrate obtained slowly adds the concentrated sulfuric acid of 120 ~ 125mL and the potassium permanganate of 15 ~ 18g under condition of ice bath, stirs 2h without being warming up to 35 ° of C after obvious heat release; Gone by supernatant liquor, it be 0.5mol/L gold chloride and 25 ~ 40mL concentration is in 0.6mol/L platinum acid chloride solution that remaining material joins 20 ~ 30mL concentration, stirs or concussion, centrifugal; Next in above-mentioned solution, 5 ~ 15g urea, 3 ~ 8g iron hydroxide and 5 ~ 10g nickel hydroxide stirring reaction, 10 ~ 30min is added; Add 3 ~ 5g dispersant again at above-mentioned reactant subsequently, described dispersant is the one in zinc stearate, dolomol, barium stearate; Finally at temperature is 105 DEG C ~ 110 DEG C, dry 1.5h, the catalyst of a mineral carbon load gold platinum can be obtained.
Example 1
First 3g graphite powder is poured in the 12mL concentrated sulfuric acid, stir in oil bath at temperature is 75 DEG C, then add potassium persulfate and the 2.5g phosphorus pentoxide of 2.5g, Keep agitation 4.5h; Then use 0.2mm micropore filtering film vacuum filtration, the filtrate obtained slowly adds the concentrated sulfuric acid of 120mL and the potassium permanganate of 15g under condition of ice bath, stirs 2h without being warming up to 35 DEG C after obvious heat release; Gone by supernatant liquor, it be 0.5mol/L gold chloride and 25mL concentration is in 0.6mol/L platinum acid chloride solution that remaining material joins 20mL concentration, stirs or concussion, centrifugal; Next in above-mentioned solution, 5g urea, 3g iron hydroxide and 5g nickel hydroxide stirring reaction 10min is added; Add 3g dispersant again at above-mentioned reactant subsequently, described dispersant is the one in zinc stearate, dolomol, barium stearate; Finally at temperature is 105 DEG C, dry 1.5h, the catalyst of a mineral carbon load gold platinum can be obtained.
This example in use operates more convenient, does not have secondary pollution for environment, and carbon monoxide removal rate is up to 99.7%.
Example 2
First 4g graphite powder is poured in the 13mL concentrated sulfuric acid, stir in oil bath at temperature is 77 DEG C, then add potassium persulfate and the 2.8g phosphorus pentoxide of 2.7g, Keep agitation 5.0h; Then use 0.2mm micropore filtering film vacuum filtration, the filtrate obtained slowly adds the concentrated sulfuric acid of 123mL and the potassium permanganate of 16g under condition of ice bath, stirs 2h without being warming up to 35 DEG C after obvious heat release; Gone by supernatant liquor, it be 0.5mol/L gold chloride and 30mL concentration is in 0.6mol/L platinum acid chloride solution that remaining material joins 25mL concentration, stirs or concussion, centrifugal; Next in above-mentioned solution, 10g urea, 5g iron hydroxide and 8g nickel hydroxide stirring reaction 25min is added; Add 4g dispersant again at above-mentioned reactant subsequently, described dispersant is the one in zinc stearate, dolomol, barium stearate; Finally at temperature is 107 DEG C, dry 1.5h, the catalyst of a mineral carbon load gold platinum can be obtained.
This example in use operates more convenient, does not have secondary pollution for environment, and carbon monoxide removal rate is up to 99.8%.
Example 3
First 5g graphite powder is poured in the 15mL concentrated sulfuric acid, stir in oil bath at temperature is 80 DEG C, then add potassium persulfate and the 3.0g phosphorus pentoxide of 3.0g, Keep agitation 6.5h; Then use 0.2mm micropore filtering film vacuum filtration, the filtrate obtained slowly adds the concentrated sulfuric acid of 125mL and the potassium permanganate of 18g under condition of ice bath, stirs 2h without being warming up to 35 DEG C after obvious heat release; Gone by supernatant liquor, it be 0.5mol/L gold chloride and 40mL concentration is in 0.6mol/L platinum acid chloride solution that remaining material joins 30mL concentration, stirs or concussion, centrifugal; Next in above-mentioned solution, 15g urea, 8g iron hydroxide and 10g nickel hydroxide stirring reaction 30min is added; Add 5g dispersant again at above-mentioned reactant subsequently, described dispersant is the one in zinc stearate, dolomol, barium stearate; Finally at temperature is 110 DEG C, dry 1.5h, the catalyst of a mineral carbon load gold platinum can be obtained.
This example in use operates more convenient, does not have secondary pollution for environment, and carbon monoxide removal rate is up to 99.9%.
Claims (1)
1. a method for carbon monoxide removed by graphene oxide-loaded golden platinum catalyst, it is characterized in that:
(1) 3 ~ 5g graphite powder is poured in 12 ~ 15mL concentrated sulfuric acid, stir in oil bath at temperature is 75 DEG C ~ 80 DEG C, then add potassium persulfate and 2.5 ~ 3.0g phosphorus pentoxide of 2.5 ~ 3.0g, Keep agitation 4.5 ~ 6.5h;
(2) with 0.2mm micropore filtering film vacuum filtration, the filtrate obtained slowly adds the concentrated sulfuric acid of 120 ~ 125mL and the potassium permanganate of 15 ~ 18g under condition of ice bath, stirs 2h without being warming up to 35 DEG C after obvious heat release;
(3) gone by supernatant liquor, it be 0.5mol/L gold chloride and 25 ~ 40mL concentration is in 0.6mol/L platinum acid chloride solution that remaining material joins 20 ~ 30mL concentration, stirs or concussion, centrifugal;
(4) in above-mentioned solution, add 5 ~ 15g urea, 3 ~ 8g iron hydroxide and 5 ~ 10g nickel hydroxide stirring reaction, 10 ~ 30min;
(5) add 3 ~ 5g dispersant again at above-mentioned reactant, described dispersant is the one in zinc stearate, dolomol, barium stearate;
(6) at temperature is 105 DEG C ~ 110 DEG C, dry 1.5h, the catalyst of a mineral carbon load gold platinum can be obtained.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105561989A (en) * | 2015-12-17 | 2016-05-11 | 浙江工业大学 | Noble metal loaded graphene microsphere catalyst and preparation method and application thereof |
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| CN1579621A (en) * | 2003-08-06 | 2005-02-16 | 中国科学院兰州化学物理研究所 | Catalyst for removing carbon monoxide and its preparation method |
| CN101973518A (en) * | 2010-10-21 | 2011-02-16 | 中国科学院上海应用物理研究所 | Method for preparing nano gold-graphene oxide nano composite material |
| CN104483365A (en) * | 2014-12-17 | 2015-04-01 | 江西师范大学 | Electrochemical gas sensing device adopting precious metal and graphene composite material as sensing electrode and production method of electrochemical gas sensing device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1428198A (en) * | 2001-12-25 | 2003-07-09 | 中国科学院大连化学物理研究所 | Noble metal catalyst for selective oxidation cleaning of micro CO in methanol reformed gas |
| CN1579621A (en) * | 2003-08-06 | 2005-02-16 | 中国科学院兰州化学物理研究所 | Catalyst for removing carbon monoxide and its preparation method |
| CN101973518A (en) * | 2010-10-21 | 2011-02-16 | 中国科学院上海应用物理研究所 | Method for preparing nano gold-graphene oxide nano composite material |
| CN104483365A (en) * | 2014-12-17 | 2015-04-01 | 江西师范大学 | Electrochemical gas sensing device adopting precious metal and graphene composite material as sensing electrode and production method of electrochemical gas sensing device |
Non-Patent Citations (1)
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| 张航: "石墨烯/金属纳米粒子复合材料的制备及电催化性能研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
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| CN105561989A (en) * | 2015-12-17 | 2016-05-11 | 浙江工业大学 | Noble metal loaded graphene microsphere catalyst and preparation method and application thereof |
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