TW201934329A - Divalent-Fe/Al composite metallic oxidation electrode structure and manufacturing method thereof - Google Patents

Abstract

A composite metallic oxidation electrode structure includes a metallic oxidation electrode, an electrode core layer made of a first metallic (aluminum-contained) material and an electrode outer layer made of a second composite metallic (cobalt and ferrum-contained) material. The electrode outer layer is formed on the electrode core layer to form the metallic oxidation electrode. In soil or water remediation, the first metallic material and the second composite metallic material are combined with a persulfate material to catalyze a reaction in water to attenuate or mineralize a TCS (triclosan) contamination.

Description

Structure of bivalent metal-iron / aluminum composite metal oxidation electrode and manufacturing method thereof

The invention relates to a composite metal oxide electrode structure and a manufacturing method thereof; in particular, to a bivalent metal-iron / aluminum composite metal oxide electrode structure and a manufacturing method thereof; and more particularly, to a cobalt-iron / aluminum composite metal oxide electrode. The structure and its manufacturing method are suitable for catalytic degradation or mineralization treatment of pollutants in the environment [soil, water body or groundwater]-triclosan [TCS, Trilosan].

Regarding the conventional electric soil conditioning device, for example, the invention patent of the Republic of China Patent No. TW-I571326 "Composite Metal Oxide Electrode Structure and Manufacturing Method" discloses a composite metal oxide electrode structure and manufacturing method thereof. The composite metal oxide electrode structure includes a metal oxide electrode, an electrode core layer, and an electrode outer layer, and the electrode core layer is made of a first metal material, and the electrode outer layer is made of a second metal material. The electrode outer layer is disposed on the electrode core layer to form the metal oxide electrode. In electromotive soil remediation, the redox potentials of the first metal material and the second metal material are used to appropriately generate a spontaneous reaction so that the first metal material can supply electrons to facilitate the oxidation of the second metal by the second metal material A zero-valent second metal is reduced to form a Fenton reaction in water to degrade or mineralize an organic pollutant. The first metal material is selected from aluminum or an aluminum-containing material, and the second metal material is selected from iron or an iron-containing material.

The aforementioned composite metal oxide electrode structure No. TW-I571326 and its manufacturing method are only suitable for the treatment of degradation or mineralization of organic pollutants Industry, and the composite metal oxide electrode is an iron / aluminum composite metal oxide electrode. Therefore, the conventional composite metal oxide electrode structure and its manufacturing method inevitably require further improvement to be suitable for the treatment of other pollutants.

Another conventional electric soil conditioning device, for example, a new patent case of the Republic of China Patent No. TW-M377425 "Environmental Electric Power Technology Hollow Water Permeability Electrode Structure", discloses a hollow water permeation electrode structure including: An electric field device generates an electric field in the soil in a preset area. The electric field device has a positive electrode and a negative electrode. At least two electrode rods are respectively arranged on the positive and negative electrodes. The electrode rods are hollow rods, and the center of the electrode rods forms an axis. Space, and at least one perforation hole penetrating radially is a through hole that can connect the space to the outer edge of the electrode rod; each electrode rod is provided on each of the positive electrode and the negative electrode respectively; when an electric field is generated, the soil The anions inside begin to migrate toward the positive electrode; heavy metal cations and organic matter dissolved in water all migrate toward the negative electrode, and can penetrate into the space for concentration, which can be easily matched with an extraction device to extract heavy metal pollutants in the space.

Another conventional electric soil remediation device, for example, the invention patent case of the Republic of China Patent No. TW-I249441 "System and method for remediation of heavy metal contaminated soil by electric power", discloses an electric power remediation system and method. The electrodynamic reaction tank is open, and sub-slots of different widths can be placed in the electrodynamic reaction tank, which can be used as soil sub-slots, buffer sub-slots, electrode areas, etc.

Another conventional electric soil conditioning device, for example, the invention patent of the Republic of China Patent No. TW-I408258 "Regeneration system using bimetal oxide electrode in electric force method", which discloses a bimetal oxide electrode in electric force method Regeneration system. The regeneration system includes a power supply device, a cathode, and an anode. The power supply device is used to supply electric power required to remove pollutants to the cathode and anode. The cathode is electrically connected to the power supply device, and the cathode is connected to a first end of a component to be regenerated. The anode is electrically connected to the power supply device, and the anode is connected to one of the components to be regenerated. The second end, so as to remove the pollutants by electric force from the element to be regenerated. The anode is a bimetallic oxidation electrode, so the bimetallic oxidation electrode performs pollutant degradation at the anode.

Another conventional electric soil conditioning device, for example, the invention patent case of the method of improving the content of lead and copper in soil [sludge] of the Republic of China Patent No. TW-I280952, which discloses a method for improving lead and copper in soil [sludge] The content method can maintain the pH neutrality and improve the removal efficiency of soil [sludge] heavy metals. The anode and cathode electrodes are set in the operating liquid storage tank without direct contact with the soil [sludge], and a DC voltage is applied to the treated soil [sludge].

Another conventional electric soil remediation device, for example, the Republic of China Patent No. TW-293056 "In-situ Remediation of Contaminated Heterogeneous Soil Damage", which discloses an in-situ remediation method for contaminated heterogeneous soil areas . The in situ remediation method includes [a] putting a substance that treats pollutants in a bad area of the contaminated heterogeneous soil into at least a liquid-permeable area of the contaminated heterogeneous soil area to form in the contaminated heterogeneous soil area A treatment area, [b] conducting a direct current through at least one low-permeability soil area in a contaminated heterogeneous soil area between a first electrode and a second electrode having an opposite charge, wherein [i] the first electrode position At the first end of the contaminated heterogeneous soil area, the second electrode is located at the opposite end of the contaminated heterogeneous soil area or [ii] the first electrode is located at the first end of each low-permeability soil area, and the second electrode Located at the opposite end of each low-permeability soil area, [1] caused an electroosmotic flow from the second electrode to the first electrode, [2] caused an electromigration movement of an ionic pollutant in the direction of the oppositely charged electrode, Or [3] causing an electroosmotic flow from the second electrode to the first electrode and an electromigration movement of an ionic contaminant toward the oppositely charged electrode, and [c] applying a Water pressure drop homogeneous soil area to create a hydraulic flow of contaminated heterogeneous soil low-side area of the contaminated heterogeneous soil region to the high-voltage terminal is.

In addition, the conventional electric soil remediation technology is also disclosed in many foreign patents, such as: Chinese Patent Publication No. CN-102527707, US Patent No. US-6193867, and US Patent Publication No. US-2006163068.

In fact, the aforementioned Republic of China Patent Nos. TW-M377425, TW-I249441, Chinese Patent Publication No. CN-102527707, and U.S. Patent No. US-6193867 are only technologies for soil remediation by electric force using traditional inert electrodes. . However, the conventional inert electrode can only remove the pollutant part, that is, it still has the technical problem that it cannot effectively perform comprehensive soil remediation.

In addition, the aforementioned Republic of China Patent Publication No. TW-I408258 uses a composite metal oxide electrode, that is, an improved bimetal oxide electrode and a regeneration system thereof. However, many composite metal electrodes are usually made of precious metals, so they still have the technical problem of higher manufacturing cost and less economic benefits.

In addition, the method of improving the content of lead and copper in soil [sludge] of the aforementioned Republic of China Patent Publication No. TW-I280952 and the remedy method of the contaminated heterogeneous soil area of No. TW-293056 are only general maintenance of the contaminated soil Only the technical method, it still has the technical problem of unable to effectively complete the soil remediation.

The aforementioned patent publications: Republic of China Patent Nos. TW-I571326, TW-M377425, TW-I249441, TW-I408258, TW-I280952, TW-293056, CN-102527707, U.S. Patents No. US-6193867 and US Patent Publication No. US-2006163068 are only references to the technical background of the present invention and illustrate the current state of technological development, and are not intended to limit the scope of the present invention.

In view of this, the present invention provides a bivalent metal-iron / aluminum composite metal oxide electrode structure and a method for manufacturing the same in order to meet the above technical problems and requirements. An electrode core layer and a composite electrode are provided on a metal oxide electrode. A metal electrode outer layer, and the electrode core layer and the composite metal electrode outer layer include a first metal material and a second composite metal material, and the composite metal electrode outer layer is disposed on the electrode core layer, and the first metal material is used And the second composite metal material appropriately combines a persulfate material for catalytic degradation or mineralization of triclosan pollutants in the environment. Therefore, compared with the conventional iron / aluminum composite metal oxide electrode structure and its manufacturing method, it can be applied to Dispose of triclosan in the environment.

The main object of the present invention is to provide a bivalent metal-iron / aluminum composite metal oxide electrode structure and a manufacturing method thereof. An electrode core layer and a composite metal electrode outer layer are provided on a metal oxide electrode, and the electrode core layer and composite The outer layer of the metal electrode includes a first metal material and a second composite metal material, and the composite metal electrode outer layer is disposed on the electrode core layer, and a persulfuric acid is appropriately combined with the first metal material and the second composite metal material. Salt material for catalytic degradation or mineralization of triclosan pollutants in the environment, and achieve the effect of treating triclosan pollutants in the environment.

In order to achieve the above object, the bivalent metal-iron / aluminum composite metal oxide electrode structure of the preferred embodiment of the present invention includes: a metal oxide electrode, which is an anode, and the metal oxide electrode is used for electrodynamic soil or water [or Groundwater] remediation; an electrode core layer made of a first metal material and the first metal material is an aluminum-containing metal material; and at least one composite metal electrode outer layer made of a second composite metal material And the second composite metal material is a bivalent metal-iron composite metal material, and an outer layer of the composite metal electrode is disposed on the electrode core layer to form a bivalent metal-iron / aluminum composite metal oxidation electrode; The electrode core layer and the outer layer of the composite metal electrode constitute the metal oxide electrode, and the first metal material and the second composite metal material of the metal oxide electrode are appropriately combined with a persulfate material to facilitate the catalysis. Degradation or mineralization of triclosan pollutants in the environment.

The outer layer of the composite metal electrode of the preferred embodiment of the present invention has a cobalt ferrite structure or a cobalt ferrite crystal structure.

The bivalent metal-iron / aluminum composite metal oxide electrode of the preferred embodiment of the present invention is a cylinder or a flat cylinder.

The cylinder or flat cylinder of the preferred embodiment of the present invention forms an electrode array.

The persulfate material according to a preferred embodiment of the present invention includes a sodium persulfate material, a potassium persulfate material, a sulfate radical material, or any combination thereof.

In order to achieve the above object, a method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to a preferred embodiment of the present invention includes: pickling at least one first metal rod, and removing the first metal rod, and the first The metal rod is made of an aluminum-containing metal material; the first metal rod is immersed in a second composite metal ion solution, and the first metal rod is taken out, and the second composite metal ion solution is a divalent metal- Iron metal ion solution; pre-drying the first metal rod; and baking and calcining the first metal rod at high temperature to form at least one second composite metal layer on the first metal rod to form a Divalent metal-iron / aluminum composite metal oxidation electrode.

In the preferred embodiment of the present invention, the first metal rod forms an electrode core layer, and the second composite metal layer covers the electrode core layer.

In the preferred embodiment of the present invention, the second composite metal layer forms an outer layer of a composite metal electrode, and the outer layer of the composite metal electrode is disposed on the electrode core layer.

In the preferred embodiment of the present invention, another composite metal layer is formed on the second composite metal layer, so as to form a multilayer composite metal layer.

The preferred embodiment of the present invention utilizes the divalent metal-iron / aluminum composite Metal oxide electrodes enhance the ability of monosulfate to move freely in the environment.

1‧‧‧metal oxide electrode

1a‧‧‧metal oxide electrode

1’‧‧‧metal oxide electrode

10‧‧‧ electrode core layer

20‧‧‧ Outer layer of composite metal electrode

20a‧‧‧The first composite metal electrode outer layer

20b‧‧‧Second composite metal electrode outer layer

FIG. 1 is a perspective view of the structure of a bivalent metal-iron / aluminum composite metal oxide electrode according to the first preferred embodiment of the present invention.

FIG. 2 is a schematic flowchart of a method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to a preferred embodiment of the present invention.

Fig. 3: Schematic diagram of the divalent metal-iron / aluminum composite metal oxide electrode structure of the preferred embodiment of the present invention using the divalent metal concentration of the dipping solution as a function of electrode coating rate.

FIG. 4 is a schematic diagram of X-ray diffraction analysis of a bivalent metal-iron / aluminum composite metal oxide electrode structure according to a preferred embodiment of the present invention.

FIG. 5 is a perspective view of the structure of a bivalent metal-iron / aluminum composite metal oxide electrode according to a second preferred embodiment of the present invention.

FIG. 6 is a perspective view of the structure of a bivalent metal-iron / aluminum composite metal oxide electrode according to a third preferred embodiment of the present invention.

FIG. 7 is a three-dimensional schematic diagram of an electrode array composed of a bivalent metal-iron / aluminum composite metal oxide electrode structure according to a third preferred embodiment of the present invention.

In order to fully understand the present invention, the preferred embodiments will be described in detail below with reference to the accompanying drawings, which are not intended to limit the present invention.

The bivalent metal-iron / aluminum composite metal oxidation electrode structure of the preferred embodiment of the present invention and its method for soil remediation are applicable to various electromotive soil [sludge] remediation devices, such as electromotive soil [or water, environment] An in-situ rectification device, but it is not intended to limit the scope of the invention. In addition, the preferred embodiment of the present invention is a bivalent metal-iron / aluminum composite metal oxidation electrode structure, a manufacturing method thereof, and a soil remediation method suitable for the remediation treatment environment [eg, soil, bottom Mud or groundwater], but it is not intended to limit the application of the present invention. Use range.

In general, due to the widespread use of pharmaceuticals and personal care products (PPCSPS) by human beings, serious pollution has been caused in soil or underground water, among which triclosan [TCS, 5-chloro-2- (2, 4-Dichlorophenoxy) phenol] is an emerging pollutant. Trichloro sand can be distributed to the environment by the untreated discharge method of the treatment plant or through other channels. Because of its high affinity for soil, it is often found in soil and sediment. The advanced oxidation treatment methods for the degradation and mineralization of triclosan in the environment include photocatalytic methods, chemical oxidation methods [Fenton method, ozone method, etc.] and electrochemical methods. However, most chemical oxidation methods generate a large amount of sediment due to the need to add additional chemicals, and it is also necessary to consider whether the intermediate products generated during the treatment cause more serious secondary pollution.

This invention uses the technical term "divalent metal-iron / aluminum composite metal" to synthesize a composite metal with "divalent metal material and iron material and aluminum material" or "divalent metal material and iron-containing material and aluminum-containing material" "" Cobalt-iron / aluminum composite metal "or" cobalt-iron / aluminum composite metal "is used as an example, but it is not intended to limit the scope of the present invention.

FIG. 1 is a perspective view showing the structure of a bivalent metal-iron / aluminum composite metal oxide electrode according to a first preferred embodiment of the present invention. Please refer to FIG. 1. The structure of the bivalent metal-iron / aluminum composite metal oxide electrode according to the first preferred embodiment of the present invention includes a metal oxide electrode 1, an electrode core layer 10, and a composite metal electrode. An outer layer [composite metallic electrode shell layer] 20, and the electrode core layer 10 is made of the first metal material, and the composite metal electrode outer layer 20 is made of the second composite metal material [ie, a cobalt-iron / aluminum composite metal material , Cobalt-iron / aluminum composite metal material or other bivalent metal-iron / aluminum composite metal material]. That is, the first metal material is disposed on the electrode core layer 10, and the second composite metal material is disposed on the composite metal electrode outer layer 20.

Please refer to Figure 1 again, for example, the metal is oxidized The electrode 1 is a cylinder or other elongated rod, for example, a polygonal section or a gear-shaped section, and the composite metal electrode outer layer 20 is correspondingly disposed on The electrode core layer 10 is configured to form a redox reaction region between the electrode core layer 10 and the composite metal electrode outer layer 20.

Please refer to FIG. 1 again. For example, the electrode core layer 10 and the composite metal electrode outer layer 20 constitute the metal oxide electrode 1, and the first metal material and the second composite metal material of the metal oxide electrode 1 are appropriately used. Combine a persulfate material, such as: sodium persulfate material [SPS, Sodium persulfate], potassium peroxosulfate material [PMS, Potassium peroxymonosulfate], a material with sulfate radicals, or any combination thereof, in order to properly perform the catalyst [catalyze] Degradation or mineralization of triclosan pollutants in the environment.

FIG. 2 illustrates a schematic flow chart of a method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to a preferred embodiment of the present invention, which includes four main steps S1 to S4, but it is not intended to limit the sequence of steps of the present invention. Without departing from the scope of the present invention, the order of steps of the preferred embodiments of the present invention may be appropriately changed, divided, increased, combined, or reduced. Please refer to FIG. 1 and FIG. 2. For example, the manufacturing of the metal oxide electrode 1 is applicable to the method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode shown in FIG. 2.

Please refer to FIG. 2, a method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to a preferred embodiment of the present invention includes a first step S1: First, at least one first metal rod [for example, a diameter of 5 or 10mm, aluminum rod with a length of 10cm or other size specifications] pickling with an acidic solution [for example: dilute sulfuric acid solution with a sulfuric acid to water ratio of 1: 2] for a predetermined time [for example: about 6 minutes], And take out the first metal rod.

Please refer to FIG. 2 again. The method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to a preferred embodiment of the present invention includes a second step S2: Next, the first metal rod is immersed in a second composite metal. Ionic solution [e.g. co-solution of FeCl ₃ solution with a concentration of about 0.172M or 0.86M and CoCl ₂ ‧H ₂ O solution with a concentration of about 0.172M, 0.36M, 0.5M, 0.75M, 0.86M or 1.032M] Time, and remove the impregnated first metal rod.

Please refer to FIG. 2 again, the method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to a preferred embodiment of the present invention includes a third step S3: Next, the impregnated first metal rod is at a predetermined temperature [ (About 105 ° C.) to perform pre-drying for a predetermined time [for example, about 10 minutes] to obtain the dried first metal rod.

Please refer to FIG. 2 again. The method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to a preferred embodiment of the present invention includes a fourth step S4. Next, the dried first metal rod is heated at a predetermined temperature. [About 500 to 600 ° C, for example: 500 ° C, 550 ° C, or 600 ° C] High temperature baking and calcining for a predetermined time [for example, about 1 to 10 minutes] to form at least a second on the first metal rod Composite metal layer. In another preferred embodiment of the present invention, the first metal rod may be subjected to final high-temperature baking and calcination at a predetermined temperature (about 500 to 600 ° C.) for a predetermined time (for example, about 60 minutes).

Please refer to FIGS. 1 and 2 again, the first metal rod forms the electrode core layer 10, and the composite metal electrode outer layer 20 covers the electrode core layer 10. That is, the composite metal electrode outer layer 20 is disposed on the electrode core layer 10 to form a divalent metal-iron / aluminum composite metal oxide electrode. For example, the composite metal electrode outer layer 20 has a cobalt ferrite structure, a cobalt ferrite crystal structure (eg, a CoFe ₂ O ₄ crystalline form), or other bivalent metal ferrite structure.

Please refer to Figures 1 and 2 again. When remediation of soil or water, use the bivalent metal-iron / aluminum composite metal oxidation electrode to enhance the ability of a sulfur radical to move in the environment, so as to properly Catalytic degradation or mineralization of triclosan pollutants in the environment.

FIG. 3 is a schematic diagram showing the curve of the divalent metal-iron / aluminum composite metal oxide electrode structure of the preferred embodiment of the present invention using the divalent metal concentration of the dipping solution versus the electrode coating ratio. Referring to FIG. 3, a preferred embodiment of the present invention selects to prepare a cobalt-iron / aluminum composite metal oxide electrode. As the cobalt concentration in the preparation solution increases, the cobalt coating amount on the electrode surface increases; when the cobalt concentration exceeds 0.86M, the effective divalent cobalt coating amount starts to decrease, while the iron coating amount increases. In addition, when the cobalt concentration in the preparation solution reached 0.75M, the cobalt-iron coating ratio reached a maximum of 1.1; when the cobalt concentration was further increased to 0.86M, the cobalt-iron coating ratio was low.

FIG. 4 illustrates a schematic diagram of a X-ray diffraction (XRD, XRD) analysis of a bivalent metal-iron / aluminum composite metal oxide electrode structure according to a preferred embodiment of the present invention. Please refer to FIG. 4. In the preferred embodiment of the present invention, a cobalt-iron / aluminum composite metal oxide electrode is prepared and XRD diffraction experiments are performed on the coated iron-aluminum metal oxide through X-ray diffraction. After analysis, there are several strong characteristic peaks at 2 θ = 30.7, 36.5, 38, 55.6, and 65, which are the crystal structure of CoFe ₂ O ₄ (JCPDS No: 00-022-1068), and their peaks correspond to The lattice plane indices are (2 2 0), (3 1 1), (2 2 2), (4 0 0), (5 1 1), and (4 4 0).

Please refer to Figures 3 and 4 again. Select the concentration of cobalt in the preparation liquid as 0M, 0.172M, 0.43M, 0.86M, the preparation temperature is 600 ° C, and the electrode is prepared at 10 times of calcination. Lattice structure analysis, and the characteristic peaks of the main CoFe ₂ O ₄ spinel structure [cubic spinel structure] generated at 2 θ = 36.5, to compare the integrity of CoFe ₂ O ₄ crystal structure. When the cobalt concentration is 0M, there are no characteristic peaks of the spinel structure; when the cobalt concentration is increased to 0.172M, the characteristic peak waveform of 2 θ = 36.5 is disordered, that is, its crystal structure is more complicated; when the cobalt concentration is At 0.43M, the splitting characteristic peak disappears, that is, the crystal structure is relatively single; when the cobalt concentration is further increased to 0.86M, the characteristic peak intensity increases, and the wave shape is sharper, which improves the stability of its crystal structure.

Please refer to Figures 3 and 4 again. When remediation of soil or water, use this cobalt-iron / aluminum composite metal oxide electrode to enhance the ability of sulfate to move freely based on the environment.

FIG. 5 shows a three-dimensional schematic diagram of the structure of the bivalent metal-iron / aluminum composite metal oxide electrode of the second preferred embodiment of the present invention, which corresponds to the structure of the bivalent metal-iron / aluminum composite metal oxide electrode of FIG. 1. Referring to FIG. 5, compared to the first embodiment, the metal oxide electrode 1 a of the second preferred embodiment of the present invention includes an electrode core layer 10, a first composite metal electrode outer layer 20 a, and a second composite metal electrode. Outer layer 20b.

Please refer to FIG. 2 and FIG. 5 again, the metal oxide electrode 1a of the second preferred embodiment of the present invention may choose to repeat the first step S1 to the fourth step S4 several times (for example, 10 times), as shown in FIG. 2 Show. The second composite metal electrode outer layer 20b is formed on the first composite metal electrode outer layer 20a to form a multilayer composite metal layer. Finally, the first metal rod may be optionally subjected to final high-temperature baking and calcination at a predetermined temperature (about 500 to 600 ° C.) for a predetermined time (for example, about 60 minutes).

FIG. 6 illustrates a three-dimensional schematic diagram of a bivalent metal-iron / aluminum composite metal oxide electrode structure according to a third preferred embodiment of the present invention, which corresponds to the bivalent metal-iron / aluminum composite metal oxide electrode structure of FIG. 1. Referring to FIG. 6, compared to the first embodiment, the metal oxide electrode 1 ′ of the third preferred embodiment of the present invention includes an electrode core layer 10 and a composite metal electrode outer layer 20, and the metal oxide electrode 1 ′ It is a flat cylinder, so as to increase the formation of a redox reaction region between the electrode core layer 10 and the composite metal electrode outer layer 20.

FIG. 7 illustrates a three-dimensional schematic diagram of an electrode array composed of a bivalent metal-iron / aluminum composite metal oxide electrode structure according to a third preferred embodiment of the present invention, which corresponds to the bivalent metal-iron / aluminum composite metal oxide electrode of FIG. 1. structure. Referring to FIG. 7, a plurality of metal oxide electrodes 1 ′ are selected to form a flat column electrode array with a predetermined arrangement pitch, so as to meet different requirements. It is required to arrange different numbers of the metal oxidation electrodes 1 ', and they can be accommodated in an electric soil field remediation device or an electric soil remediation tank.

Please refer to Figures 1, 5, and 7 again. Similarly, a plurality of the metal oxide electrodes 1 or 1a are selected to form a cylindrical electrode array at a predetermined arrangement pitch, and the cylindrical electrode array or the flat cylindrical electrode is selected. The array can be selected to form an electrode array of various shapes. Or, in another preferred embodiment of the present invention, a plurality of the metal oxide electrodes 1 or 1a and a plurality of the metal oxide electrodes 1 'may be mixed and arranged to form a mixed electrode array.

The foregoing preferred embodiment merely exemplifies the present invention and its technical features, and the technology of this embodiment can still be appropriately implemented with various substantially equivalent modifications and / or replacements; therefore, the scope of rights of the present invention shall be subject to the attached patent application The scope defined by the scope shall prevail. The copyright in this case restricts the use to the patent application of the Republic of China.

Claims (10)

A bivalent metal-iron / aluminum composite metal oxide electrode structure includes: a metal oxide electrode, which is an anode, and the metal oxide electrode is used for electrodynamic soil or water remediation; an electrode core layer, which is composed of a first A metal material, and the first metal material is an aluminum-containing metal material; and at least one composite metal electrode outer layer, which is made of a second composite metal material, and the second composite metal material is a bivalent A metal-iron composite metal material, and the composite metal electrode outer layer is disposed on the electrode core layer to form a divalent metal-iron / aluminum composite metal oxide electrode; wherein the electrode core layer and the composite metal electrode outer layer constitute the metal The electrode is oxidized, and the first metal material and the second composite metal material of the metal oxidation electrode are appropriately combined with a persulfate material in order to perform catalytic degradation or mineralize the triclosan pollutants in the environment. According to the bivalent metal-iron / aluminum composite metal oxide electrode structure described in item 1 of the scope of the patent application, wherein the outer layer of the composite metal electrode has a cobalt ferrite magnet structure or a cobalt ferrite crystal structure. According to the bivalent metal-iron / aluminum composite metal oxide electrode structure described in item 1 of the scope of the patent application, the bivalent metal-iron / aluminum composite metal oxide electrode is a cylinder or a flat cylinder. According to the bivalent metal-iron / aluminum composite metal oxide electrode structure described in item 1 of the scope of the patent application, the cylinder or flat cylinder forms an electrode array. The bivalent metal-iron / aluminum composite metal oxide electrode structure according to item 1 of the scope of the patent application, wherein the persulfate material includes a sodium persulfate material, a potassium persulfate material, a sulfate radical material, or any combination thereof . A method for manufacturing a bivalent metal-iron / aluminum composite metal oxidation electrode, comprising: pickling at least one first metal rod, and taking out the first metal rod, and the first metal rod is made of an aluminum-containing metal material Completion; immersing the first metal rod in a second composite metal ion solution, and taking The first metal rod is taken out, and the second composite metal ion solution is a divalent metal-iron metal ion-containing solution; the first metal rod is pre-dried; and the first metal rod is subjected to high-temperature baking and forging Firing to form at least a second composite metal layer on the first metal rod to form a bivalent metal-iron / aluminum composite metal oxide electrode. According to the method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to item 6 of the scope of the patent application, wherein the first metal rod forms an electrode core layer, and the second composite metal layer covers the electrode core layer. The method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to item 6 of the scope of the patent application, wherein the second composite metal layer forms a composite metal electrode outer layer, and the composite metal electrode outer layer is disposed on the electrode core. On the floor. According to the method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to item 6 of the scope of the patent application, wherein another composite metal layer is formed on the second composite metal layer so as to form a multilayer composite metal layer. According to the method for manufacturing a bivalent metal-iron / aluminum composite metal oxide electrode according to item 6 of the scope of the patent application, the bivalent metal-iron / aluminum composite metal oxide electrode is used to enhance the ability of the monosulfate to move freely based on the environment.