8 results about "Diamond electrodes" patented technology

The application provides a cold coke water treatment process and system. The cold coke water treatment process comprises the following steps: step one: after being collected by a coke storage pool, the cold coke water is filtered by a flat ceramic membrane to obtain concentrated coke water and dilute coke water, and the concentrated coke water is returned to the coke storage pool; step two: after being stored by a cold coke water tank, the dilute coke water is divided into dilute coke water I and dilute coke water II, the dilute coke water I is sequentially treated by a first-stage electro-catalytic oxidation unit, a second-stage electro-catalytic oxidation unit and a reverse osmosis unit to obtain purified water; and the dilute coke water II is used as cold coke water makeup water and recycled; the first-stage electro-catalytic oxidation unit is provided with an electro-catalytic oxidation reaction tank, the electro-catalytic oxidation reaction tank is provided with a cathode and an anode, the cathode is a titanium electrode, and the anode is a titanium-based metal oxide coating electrode; the second-stage electro-catalytic oxidation unit is provided with an electro-catalytic oxidation reaction tank, the electro-catalytic oxidation reaction tank is provided with a cathode and an anode, the cathode is a titanium electrode, and the anode is a boron-doped diamond electrode. The treatment process has good treatment effect and is environmentally friendly and economical.

The application relates to a kind of electrochemical oxidation synthesis ozone device and method based on patterning diamond, belong to electrochemistry technical field, device includes the first shell and second shell connected, the first shell is opened with reaction groove, water is passed to reaction groove in working process;Reaction groove is close to the side of water inlet and is provided with turbulence generator;Patterning diamond anode and patterning cathode are attached to the two sides of proton exchange membrane and constitute electrode group and are arranged in the reaction groove, parallel to the water inlet end and water outlet end of reaction groove and are connected to form straight line;The two sides of electrode group are pressed with metal current collector.The turbulence generator is water wheel or porous microstructure.The application can overcome the problems of poor mechanical strength of traditional through-hole diamond electrode and difficult water and gas transmission on the surface of electrode, while increasing the electrochemical active area of electrode, and thus improving the ozone concentration, reaction efficiency and operating life of the electrochemical oxidation synthesis ozone device.

This invention belongs to the field of biosensors and electrochemiluminescence (ECL) detection technology, and discloses an electrochemiluminescence sensor based on a UiO-67 confined single-site iridium complex, its construction method, and applications. The system uses zirconium-based metal-organic framework (MOF) material UiO-67 as a carrier, and iridium(III) bridging compounds are bonded through coordination to construct an in-situ Ir@UiO-67 nano-signal probe with high ECL activity. This probe is labeled with P-tau 181 secondary antibody to obtain an Ab2-Ir@UiO-67 complex. Simultaneously, a boron-doped diamond electrode modified with a gold film is used as the substrate electrode, and P-tau 181 primary antibody is immobilized to construct a specific recognition interface. A highly sensitive electrochemiluminescence sensing platform is then assembled via a sandwich immunoassay. This invention improves upon the bottleneck problems of poor water solubility and easy aggregation and quenching of traditional iridium complexes through MOF coordination anchoring and pore spatial confinement effects, achieving ultrasensitive quantitative detection of P-tau 181. It exhibits excellent specificity, reproducibility and stability in plasma samples.

The application discloses a boron-doped diamond-based oxygen evolution electrode and a preparation method and application thereof, and belongs to the technical field of electrocatalysis of water electrolysis oxygen evolution. The preparation steps are as follows: a titanium substrate is subjected to surface pretreatment; a boron-doped diamond film is grown on the surface of the pretreated titanium substrate by using a microwave plasma chemical vapor deposition method, so that a boron-doped diamond electrode is obtained; the boron-doped diamond electrode is used as a working electrode, and constant-current electrodeposition is carried out in an electrolyte containing a nickel salt and an ammonium salt, so that a nickel hydroxide layer is formed on the surface of the boron-doped diamond film; the electrode on which the nickel hydroxide layer is deposited is immersed in a solution containing Fe 3+ ions, and a boron-doped diamond-based oxygen evolution electrode is obtained through ion exchange and structure reconstruction. The method utilizes the excellent electrochemical stability and interface controllability of BDD, constructs a NiFe-LDH composite electrode which is structurally stable and has excellent activity, and is simple to operate and suitable for an alkaline water electrolysis environment.

This diamond electrode comprises a rod-like conductive diamond member, and a rod-like metal member electrically connected to the conductive diamond member, wherein the diamond content of the conductiv

The application develops a three-dimensional graphene and redox polymer composite electrode material through polymer interface engineering, optimizes the material structure and electrochemical properties by regulating and controlling the heat preparation parameters, realizes efficient capture of typical perfluorinated compounds, further integrates a boron-doped diamond electrode, constructs an electrochemical capture and conversion system, and can effectively separate and degrade trace concentration of perfluorinated compounds in industrial wastewater.

The invention discloses a sewage treatment system which comprises a sewage treatment tank, at least one pair of electrodes and a stirring system which are arranged in the sewage treatment tank, and apower supply connected with the electrodes. The power supply can perform positive and negative polarity exchange according to preset time parameters. The cathode and anode polarities of the two electrodes are exchanged intermittently, so that on one hand, part of solid particles originally adhered to the surface of the electrode can fall off or metal reduced on the surface of the cathode can be re-dissolved into sewage, and on the other hand, the solid particles adhered to the surfaces of the diamond electrode can be partially dissolved through acid in areas near the surface of the anode. Therefore, the electrodes are regenerated by exchanging the cathode and the anode, the service lifetime of the electrodes is prolonged, and the pickling frequency is reduced, so that the sewage treatmentefficiency is improved and the cost is reduced. In the whole sewage treatment process, an output current attenuation method is adopted, and different current intensities are adopted for different pollution degrees, so that the whole system effectively saves electric energy, and the effects of energy conservation and environmental protection are achieved.