CN105645526A - Novel high-efficiency durable electrocatalytic particle electrode and preparation method thereof - Google Patents
Novel high-efficiency durable electrocatalytic particle electrode and preparation method thereof Download PDFInfo
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- CN105645526A CN105645526A CN201610022391.6A CN201610022391A CN105645526A CN 105645526 A CN105645526 A CN 105645526A CN 201610022391 A CN201610022391 A CN 201610022391A CN 105645526 A CN105645526 A CN 105645526A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
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Abstract
The invention relates to a novel high-efficiency durable electrocatalytic particle electrode and a preparation method thereof, belonging to the technical field of wastewater treatment. The preparation method comprises the following steps: uniformly mixing and stirring treated red mud, shale, a pore forming agent and an activator used as raw materials according to a certain weight ratio to prepare a mixed crude material, impregnating the mixed crude material in a carrier sol, drying, cooling to room temperature, extruding to obtain fresh pellets, drying, heating at specific temperature for activation and roasting for some time, taking out, and cooling to room temperature to obtain the finished product. The novel high-efficiency particle electrode is porous, and has the advantages of large specific area, high adsorbability and favorable electrocatalytic property. The novel high-efficiency durable electrocatalytic particle electrode and preparation method thereof fully utilize the industrial waste-red mud, thereby changing the waste into valuable substances, reducing the environmental pollution and solving the problems of land occupation and the like.
Description
Technical field
The invention belongs to technical field of waste water processing, particularly to a kind of for new and effective persistency Electrocatalytic particle electrode of hardly degraded organic substance and preparation method thereof in Treating Municipal Sewage.
Background technology
Bipolar three-dimensional electrode (TDE) is a kind of novel advanced oxidization method, its conversion zone is no longer limited on the simple geometry surface of electrode, but carry out on the three dimensions surface of whole bed, it is particularly suited for the reaction system that degradation reaction speed is low or in system, limiting current density is little. The working mechanism of bipolar three-dimensional electrode is in that multipole bed (not having barrier film) makes working electrode particle (high impedance) bring positive and negative charge respectively because of electrostatic induction mainly through the electric field between main electrode, each particle is made to become an independent electrode, electrochemical oxidation and reduction reaction can carry out at each electrode particle surface simultaneously, shorten mass transfer distance. Organic pollution technology in TDE degrading waste water fails to realize industrialization so far, and its main cause is that current efficiency is low, and energy consumption is high. TDE processes the difficult point of hardly degraded organic substance and is in that two " time " problems: one is process the electro-catalysis speed of degradation of organic substances and how efficiency improves; Another is problem electrode life, and namely how the stability of electrode improves. For the former, to start with from the granule electrode and efficient reactor design of developing high electrocatalytic active and solve; For the latter, then to start with research from the structure of granule electrode and preparation method. Several granule electrodes conventional at present include metal or the metal-oxide of activated carbon, metal-oxide and load, but these granule electrodes there are the following problems: the impedance of activated carbon granule is relatively small, fill in and easily form short circuit current when 3 D electrode reactor runs, thus reducing current efficiency, and activated carbon particles there is also powder phenomenon-tion in electrolytic process; Metal oxide particle electrode has the Ion release that some are poisonous in electrolytic process, can become secondary pollution, for instance PbO2Granule electrode;The metal of load or metal-oxide overcome the shortcoming of activated carbon grain sub-electrode, improve water treatment efficiency, but there is also carried metal and be prone to problems such as coming off. Therefore, the technical problem to be solved in the present invention is to provide a kind of granule electrode with high-efficient and lasting electro-catalysis function and preparation method, to solve the problem that existing granule electrode stability is inadequate, the life-span is short, electrode material cost is higher.
Summary of the invention
The present invention is directed to problem above, it is provided that a kind of new and effective persistency Electrocatalytic particle electrode and preparation method thereof. Granule electrode material provided by the present invention as the working electrode of 3 D electrode reactor, can the effective Organic substance in degrading waste water, and current efficiency is high, and energy consumption is low.
One of technical scheme be to provide a kind of granule electrode with high-efficient and lasting electro-catalysis function by drying thin red mud granule, dry thin shale, pore former, activator, load agent are constituted.
Described pore former can be the one in powdered carbon, saw dust, starch, polyvinyl alcohol (PVA), polyvinyl butyral resin (PVB), granules of polystyrene.
Described activator can be Fe3O4��Fe2O3��MnO2, one in ZnO.
Described red mud is the fines strong basicity solid waste that aluminium industry is discharged in refining alumina process, because taking on a red color containing ferrum oxide, is a kind of trade waste.
Described load agent is SnC14��5H20 and Mn (NO3)2��
The preparation method that the two of technical scheme are to provide a kind of granule electrode with efficient durability electro-catalysis function, comprises the following steps:
A, red mud granule ball milling in ball mill, successively in diluted acid (10% hydrochloric acid), diluted alkaline (10% sodium hydroxide), half an hour is boiled after taking-up, again with distilled water flushing, soak (purpose is remove the impurity such as Organic substance of surface adsorption), dry at 105 DEG C in baking oven, then cross 60 mesh sieves, take dry thin red mud granule standby;
B, shale are put in baking oven 105 DEG C of drying, are pulverized by the shale dried in mortar, and then mistake 60 mesh sieves, take dry thin shale standby;
C, by the dry thin red mud granule in step A, the dry thin shale in step B, pore former and activator according to certain percentage by weight, be mixed and stirred for uniformly, prepare mixed raw material;
D, by SnC14��5H20 and Mn (NO3)2It is dissolved in hydrochloric acid with amount of substance ratio for 82:45, adds dehydrated alcohol wiring solution-forming, stir, obtain colloidal sol;
E, the mixed raw material in step C be impregnated in 4h in the colloidal sol obtained in step D, dry at 105 DEG C in baking oven, be cooled to room temperature, prepare load raw material;
F, the load raw material in step E are squeezed into raw material ball, and dry 24 hours at 120 DEG C in an oven;
G, by step F dry after raw material ball, it is placed in high temperature furnace and rises to 300 DEG C from room temperature with 120 DEG C/h, heating 2h, then 550 DEG C are risen to 60 DEG C/h, activation 10-30min, rise to 850 DEG C of roasting 10-30min with 300 DEG C/h again, naturally cool to room temperature, obtain new and effective persistency Electrocatalytic particle electrode.
Mixed raw material is according to weight percent meter, and dry thin red mud granule accounts for 50-60%, dry thin shale accounts for 10-20%, pore former accounts for 10-20%, activator accounts for 10-20%.
Described pore former can be the one in powdered carbon, saw dust, starch, polyvinyl alcohol (PVA), polyvinyl butyral resin (PVB), granules of polystyrene.
Described activator can be Fe3O4��Fe2O3��MnO2, one in ZnO.
Described red mud is the fines strong basicity solid waste that aluminium industry is discharged in refining alumina process, because taking on a red color containing ferrum oxide, is a kind of trade waste.
By high-efficient and lasting Electrocatalytic particle electrode prepared by above-mentioned preparation method, taking solid waste is red mud. The oxide generated after oxidized containing each element in red mud, after mixing with pore former, activator, good chemical reaction can be produced, particle surface is made to form porous state, there is good absorption property, it is possible to conduction, there is certain catalytic performance, preparation technology adopts the technological process of first load reshaping, it is ensured that the service life of granule electrode. And, the waste red mud produced in aluminium industry process, it is stacked not only needs fund and large-area storage yard, and contaminated environment. Utilize red mud to make the particle-catalytic electrode of three-diemsnional electrode, it is possible to turn waste into wealth, reduce the problems such as the pollution of environment, appropriation of land.
High-efficient and lasting Electrocatalytic particle electrode provided by the invention and preparation method thereof, meets the environmental protection policy of current national energy-saving and emission-reduction. The granule electrode porous of preparation, and aperture is big, having very big specific surface area, very strong absorption property, good electric conductivity and catalytic performance is a kind of new and effective persistency Electrocatalytic particle electrode.
Below in conjunction with detailed description of the invention, the invention will be further described
Embodiment one:
A, red mud granule ball milling in ball mill, successively in diluted acid (10% hydrochloric acid), diluted alkaline (10% sodium hydroxide), half an hour is boiled after taking-up, again with distilled water flushing, soak (purpose is remove the impurity such as Organic substance of surface adsorption), dry at 105 DEG C in baking oven, then cross 60 mesh sieves, take dry thin red mud granule standby;
B, shale are put in baking oven 105 DEG C of drying, are pulverized by the shale dried in mortar, and then mistake 60 mesh sieves, take dry thin shale standby;
C, by the dry thin red mud granule in step A, the dry thin shale in step B, powdered carbon and Fe3O4According to the percentage by weight of 50%:20%:20%:10%, it is mixed and stirred for uniformly, preparing mixed raw material;
D, by SnC14��5H20 and Mn (NO3)2It is dissolved in hydrochloric acid with amount of substance ratio for 82:45, adds dehydrated alcohol wiring solution-forming, stir, obtain colloidal sol;
E, the mixed raw material in step C be impregnated in 4h in the colloidal sol obtained in step D, dry at 105 DEG C in baking oven, be cooled to room temperature, prepare load raw material;
F, the load raw material in step E are squeezed into raw material ball, and dry 24 hours at 120 DEG C in an oven;
G, by step F dry after raw material ball, it is placed in high temperature furnace and rises to 300 DEG C from room temperature with 120 DEG C/h, heating 2h, then 550 DEG C are risen to 60 DEG C/h, activation 10-30min, rise to 850 DEG C of roasting 10-30min with 300 DEG C/h again, naturally cool to room temperature, obtain new and effective persistency Electrocatalytic particle electrode.
Taking the high-efficient and lasting Electrocatalytic particle electrode 5.0g of preparation in above-described embodiment, be filled in reactor, prepare 3 D electrode reactor, be 6.0V at voltage, when electric current is 0.2A, energising degraded 30ml municipal wastewater 30min, CODcr clearance reaches 95%.
Embodiment two:
A, red mud granule ball milling in ball mill, successively in diluted acid (10% hydrochloric acid), diluted alkaline (10% sodium hydroxide), half an hour is boiled after taking-up, again with distilled water flushing, soak (purpose is remove the impurity such as Organic substance of surface adsorption), dry at 105 DEG C in baking oven, then cross 60 mesh sieves, take dry thin red mud granule standby;
B, shale are put in baking oven 105 DEG C of drying, are pulverized by the shale dried in mortar, and then mistake 60 mesh sieves, take dry thin shale standby;
C, by the dry thin red mud granule in step A, the dry thin shale in step B, saw dust and Fe2O3According to the percentage by weight of 55%:15%:15%:15%, it is mixed and stirred for uniformly, preparing mixed raw material;
D, by SnC14��5H20 and Mn (NO3)2It is dissolved in hydrochloric acid with amount of substance ratio for 82:45, adds dehydrated alcohol wiring solution-forming, stir, obtain colloidal sol;
E, the mixed raw material in step C be impregnated in 4h in the colloidal sol obtained in step D, dry at 105 DEG C in baking oven, be cooled to room temperature, prepare load raw material;
F, the load raw material in step E are squeezed into raw material ball, and dry 24 hours at 120 DEG C in an oven;
G, by step F dry after raw material ball, it is placed in high temperature furnace and rises to 300 DEG C from room temperature with 120 DEG C/h, heating 2h, then 550 DEG C are risen to 60 DEG C/h, activation 10-30min, rise to 850 DEG C of roasting 10-30min with 300 DEG C/h again, naturally cool to room temperature, obtain new and effective persistency Electrocatalytic particle electrode.
Taking the high-efficient and lasting Electrocatalytic particle electrode 5.0g of preparation in above-described embodiment, be filled in reactor, prepare 3 D electrode reactor, be 6.0V at voltage, when electric current is 0.2A, energising degraded 30ml municipal wastewater 30min, CODcr clearance reaches 94%.
Claims (8)
1. a new and effective persistency Electrocatalytic particle electrode, it is characterised in that: according to weight percent meter, account for 50-60% including dry thin red mud granule, dry thin shale accounts for 10-20%, pore former accounts for 10-20%, activator accounts for 10-20%.
2. new and effective persistency Electrocatalytic particle electrode as claimed in claim 1, it is characterised in that: pore former can be the one in carbon dust, saw dust, starch, polyvinyl alcohol (PVA), polyvinyl butyral resin (PVB), granules of polystyrene.
3. new and effective persistency Electrocatalytic particle electrode as claimed in claim 1, it is characterised in that: activator can be Fe3O4��Fe2O3��MnO2, one in ZnO.
4. the preparation method of a new and effective persistency Electrocatalytic particle electrode, it is characterised in that comprise the following steps:
A, red mud granule ball milling in ball mill, successively in diluted acid (10% hydrochloric acid), diluted alkaline (10% sodium hydroxide), half an hour is boiled after taking-up, again with distilled water flushing, soak (purpose is remove the impurity such as Organic substance of surface adsorption), dry at 105 DEG C in baking oven, then cross 60 mesh sieves, take dry thin red mud granule standby;
B, shale are put in baking oven 105 DEG C of drying, are pulverized by the shale dried in mortar, and then mistake 60 mesh sieves, take dry thin shale standby;
C, by the dry thin red mud granule in step A, the dry thin shale in step B, pore former and activator according to certain percentage by weight, be mixed and stirred for uniformly, prepare mixed raw material;
D, by SnC14��5H20 and Mn (NO3)2It is dissolved in hydrochloric acid with amount of substance ratio for 82:45, adds dehydrated alcohol wiring solution-forming, stir, obtain colloidal sol;
E, the mixed raw material in step C be impregnated in 4h in the colloidal sol obtained in step D, dry at 105 DEG C in baking oven, be cooled to room temperature, prepare load raw material;
F, the load raw material in step E are squeezed into raw material ball, and dry 24 hours at 120 DEG C in an oven;
G, by step F dry after raw material ball, it is placed in high temperature furnace and rises to 300 DEG C from room temperature with 120 DEG C/h, heating 2h, then 550 DEG C are risen to 60 DEG C/h, activation 10-30min, rise to 850 DEG C of roasting 10-30min with 300 DEG C/h again, naturally cool to room temperature, obtain new and effective persistency Electrocatalytic particle electrode.
5. the preparation method of new and effective persistency Electrocatalytic particle electrode as claimed in claim 4, it is characterized in that: according to weight percent meter, dry thin red mud granule accounts for 50-60%, dry thin shale accounts for 10-20%, pore former accounts for 10-20%, activator accounts for 10-20%.
6. the preparation method of new and effective persistency Electrocatalytic particle electrode as claimed in claim 4, it is characterised in that: described pore former can be the one in powdered carbon, saw dust, starch, polyvinyl alcohol (PVA), polyvinyl butyral resin (PVB), granules of polystyrene.
7. the preparation method of new and effective persistency Electrocatalytic particle electrode as claimed in claim 4, it is characterised in that: described activator can be Fe3O4��Fe2O3��MnO2��ZnO��SnO2In one.
8. the preparation method of new and effective persistency Electrocatalytic particle electrode as claimed in claim 4, it is characterised in that: described load agent is SnC14��5H20 and Mn (NO3)2��
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473337A (en) * | 2017-09-22 | 2017-12-15 | 天津碧水源膜材料有限公司 | The apparatus and method of electro-catalysis membrane and three-diemsnional electrode coupling processing used water difficult to degradate |
| CN113277600A (en) * | 2020-02-20 | 2021-08-20 | 中国科学院大连化学物理研究所 | Red mud particle electrode and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276630A (en) * | 2013-07-03 | 2015-01-14 | 济南大学 | Red mud based particle electrode and preparation method thereof |
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- 2016-01-14 CN CN201610022391.6A patent/CN105645526A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276630A (en) * | 2013-07-03 | 2015-01-14 | 济南大学 | Red mud based particle electrode and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张芳等: "电催化氧化法处理苯酚废水的Mn-Sn-Sb/γ-Al_2O_3粒子电极研制", 《化学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473337A (en) * | 2017-09-22 | 2017-12-15 | 天津碧水源膜材料有限公司 | The apparatus and method of electro-catalysis membrane and three-diemsnional electrode coupling processing used water difficult to degradate |
| CN107473337B (en) * | 2017-09-22 | 2020-05-05 | 天津碧水源膜材料有限公司 | Device and method for treating refractory wastewater by coupling electro-catalytic membrane and three-dimensional electrode |
| CN113277600A (en) * | 2020-02-20 | 2021-08-20 | 中国科学院大连化学物理研究所 | Red mud particle electrode and preparation method and application thereof |
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Application publication date: 20160608 |