Abstract: Provided are a stator, a motor and a compressor for a motor. The stator (100) includes: a substantially annular stator body (1). The stator body (1) is formed by stacking a plurality of silicon steel sheets. The magnetic induction intensity of the silicon steel sheets is B, B>1.79 T. A plurality of stator teeth (2) arranged at intervals are formed on an inner peripheral wall of the stator body (1), and an accommodating groove (3) is defined between two adjacent stator teeth (2). A diameter of a circle where inner end surfaces of the plurality of stator teeth (2) are located is D1 and a diameter of a circle where an outer end of the stator body (1) is located is D2, and D1 and D2 satisfy: D1/D2>0.515.

Abstract: The invention belongs to the field of novel photocatalytic materials, and particularly relates to a ZnWO4 photocatalytic material containing oxygen vacancy. According to the material, absorption exists in a near infrared region of an ultraviolet-visible light diffuse reflection spectrum, wherein the wavelength range of the near infrared region is 780-2500 nm. The invention further relates to a preparation method of the ZnWO4 photocatalytic material containing oxygen vacancy. Na2WO4 and soluble zinc salt are used as raw materials, ZnWO4 crystals are formed through a hydrothermal crystallization reaction and then roasted in the presence of hydrogen so as to achieve partial reduction of ZnWO4, and then the ZnWO4 photocatalytic material containing oxygen vacancy is obtained.

Abstract: The present invention belongs to the technical field of photocatalytic materials and preparation thereof, and more particularly, relates to a double-layer ZnO hollow sphere photocatalytic material. The double-layer ZnO hollow sphere photocatalytic material is formed by inner and outer layers of ZnO hollow spheres; the hollow spheres on the inner layer have a diameter of 1.0-2.5 ?m; and the hollow spheres on the outer layer have a diameter of 1.5-4.5 ?m. The present invention further relates to a preparation method of the double-layer ZnO hollow sphere photocatalytic material, which comprises the following steps of: dissolving dissolvable zinc salt into a mixture of monohydric alcohol and ethylene glycol to prepare a solution, and then performing a solvothermal reaction on the solution under airtight conditions to prepare the double-layer ZnO hollow sphere photocatalytic material.

Abstract: Provided are a stator, a motor and a compressor for a motor. The stator (100) includes: a substantially annular stator body (1). The stator body (1) is formed by stacking a plurality of silicon steel sheets. The magnetic induction intensity of the silicon steel sheets is B, B>1.79 T. A plurality of stator teeth (2) arranged at intervals are formed on an inner peripheral wall of the stator body (1), and an accommodating groove (3) is defined between two adjacent stator teeth (2). A diameter of a circle where inner end surfaces of the plurality of stator teeth (2) are located is D1 and a diameter of a circle where an outer end of the stator body (1) is located is D2, and D1 and D2 satisfy: D1/D2>0.515.

Abstract: The present invention relates to a water-soluble ferric ion fluorescent probe, and the fluorescent probe molecule has a structure as shown in the following figure. The present invention also discloses a preparation method of the water-soluble ferric ion fluorescent probe.

Abstract: The present invention relates to a water-soluble ferric ion fluorescent probe, and the fluorescent probe molecule has a structure as shown in the following figure. The present invention also discloses a preparation method of the water-soluble ferric ion fluorescent probe.

Abstract: The invention belongs to the field of novel photocatalytic materials, and particularly relates to a ZnWO4 photocatalytic material containing oxygen vacancy. According to the material, absorption exists in a near infrared region of an ultraviolet-visible light diffuse reflection spectrum, wherein the wavelength range of the near infrared region is 780-2500 nm. The invention further relates to a preparation method of the ZnWO4 photocatalytic material containing oxygen vacancy. Na2WO4 and soluble zinc salt are used as raw materials, ZnWO4 crystals are formed through a hydrothermal crystallization reaction and then roasted in the presence of hydrogen so as to achieve partial reduction of ZnWO4, and then the ZnWO4 photocatalytic material containing oxygen vacancy is obtained.

Abstract: The present invention belongs to the technical field of photocatalytic materials and preparation thereof, and more particularly, relates to a double-layer ZnO hollow sphere photocatalytic material. The double-layer ZnO hollow sphere photocatalytic material is formed by inner and outer layers of ZnO hollow spheres; the hollow spheres on the inner layer have a diameter of 1.0-2.5 ?m; and the hollow spheres on the outer layer have a diameter of 1.5-4.5 ?m. The present invention further relates to a preparation method of the double-layer ZnO hollow sphere photocatalytic material, which comprises the following steps of: dissolving dissolvable zinc salt into a mixture of monohydric alcohol and ethylene glycol to prepare a solution, and then performing a solvothermal reaction on the solution under airtight conditions to prepare the double-layer ZnO hollow sphere photocatalytic material.