31results about How to "High photothermal conversion rate" patented technology

The invention relates to a solar energy selective absorption coating, which comprises from bottom to top: a base layer, an infrared reflection layer, an absorption layer, and an anti-reflection layer; the absorption layer includes at least one graphene material absorption layer . The solar selective absorbing coating provided by the invention has good light absorption, a light absorption ratio as high as 0.98 or more, low emissivity, an emission ratio below 0.01, and a high light-to-heat conversion rate.

The invention discloses an inorganic-inorganic nano hybrid material of a bimodal mesoporous core-shell structure as well as a preparation method and an application of the inorganic-inorganic nano hybrid material. The bimodal mesoporous inorganic-inorganic nano hybrid material of the core-shell structure is prepared by the following steps: firstly, with the presence of a surfactant, reducing metal salt by virtue of ascorbic acid, so that mesoporous inorganic nanoparticles are obtained; then, covering the surface of hexadecyl trimethyl ammonium bromide, which serves as a surfactant, with a layer of mesoporous silicon dioxide; covalently grafting diethyltriamine pentaacetic acid after modifying a mesoporous silicon dioxide shell layer by virtue of amino; and finally, coordinating with metal ions, so that the bimodal mesoporous inorganic-inorganic nano hybrid material of the core-shell structure is obtained. The prepared material has the core-shell material, wherein a core is constituted by the mesoporous inorganic nanoparticles and a shell is formed by the mesoporous silicon dioxide shell layer, and the surface of the mesoporous silicon dioxide shell layer is hybridized and modified by virtue of inorganic metals. The inorganic-inorganic nano hybrid material has the advantages of being uniform in dimension, good in biocompatibility and the like, and the inorganic-inorganic nano hybrid material is high in optical stability, high in photo-thermal conversion rate and high in magnetic resonance imaging resolution ratio; and integration of magnetic resonance imaging and photo-thermal therapy can be achieved.

The invention discloses a water pump pumping irrigation system driven by utilizing solar steam and an application method thereof. The invention aims to provide a system for converting solar photo-thermal energy into steam energy and directly driving the water pump to pump water for irrigation; according to the technical scheme, a heat collecting device is used for collecting solar energy and heating a heat transfer medium, a conveying pipeline is provided with a circulating pump, the circulating pump is used for conveying the heat transfer medium heated by the heat collecting device to a steamgenerator, and the heat transfer medium which has completed heat exchange in the steam generator is conveyed back to the heat collecting device; and the steam generator is used for absorbing heat carried by the heat transfer medium and heating the supplied water into steam for outputting, an energy accumulator is used for storing redundant steam generated by the steam generator, the water pump isused for driving the steam generated by the steam generator to act as a power to drive the water pump to run so as to carry out pumping irrigation operation. The system and the method are applicableto the technical field of solar energy utilization.

The invention discloses application of a porous carbon nanorod in near-infrared light induced double phototherapy. The porous carbon nanorod is characterized in that the porous carbon nanorod is used as a basal body for absorbing near-infrared light energy and converting the near-infrared light energy to generate active oxygen with high-energy heat and high concentration, so that the porous carbon nanorod is used as a photo-thermal therapeutic agent and a photodynamic therapeutic agent simultaneously for killing tumor cells. The porous carbon nanorod has the characteristics of low manufacturing cost, high biological safety, high infrared light absorption, high photo-thermal conversion rate and high active oxygen yield, and is beneficial for improving the utilization rate of laser energy, so that the killing efficiency for cancer cells is strengthened, and the porous carbon nanorod has a wide application prospect in the aspect of near-infrared light induced double phototherapy.

The invention relates to the field of novel functional nano materials, and discloses a preparation method and applications of fiber-phase red phosphorus nanoparticles. The method comprises the following steps: synthesizing zinc oxide nanoparticles through a hydrothermal method, depositing a layer of fiber-phase red phosphorus on the zinc oxide nanoparticles as a template through a chemical vapor deposition method, washing out the zinc oxide nanoparticles in the zinc oxide nanoparticle compound wrapped with the red phosphorus with diluted hydrochloric acid, and ultrasonically washing to obtainthe fiber-phase red phosphorus nanoparticles. The fiber-phase red phosphorus nanoparticles prepared by the method have good photo-thermal properties, can coordinate antibiotics to efficiently and quickly treat bacterial biofilm infection, and have good biocompatibility and good biodegradability.

The invention discloses low-melting-point glass powder, which is prepared from the following components in parts by weight: 20 to 60 parts of Bi2O3, 10 to 30 parts of ZnO, 25 to 45 parts of B2O3, 0.5to 2 parts of MgO, 2 to 4.5 parts of Al2O3, 0.5 to 2 parts of coloring agent, and a filler which is not more than 40 percent of the total weight of the glass powder. The coloring agent is one or a mixture of any two and three of Fe3O4, Ni2O3 and Co2O3; by introducing the coloring agent, a light absorption capacity of the glass powder can be improved, direct packaging in an infrared heating furnacecan be realized due to the high-efficient photo-thermal conversion rate, and the low-melting-point glass powder does not need to be added with substances containing harmful elements such as lead, vanadium, thallium and tellurium. The invention also provides a preparation method. The particle size of the glass powder prepared by utilizing the method can achieve a nanometer grade.

The invention provides a titanium nanosheet/graphene-based heating film which comprises a first transparent insulating layer, an electrode, a second transparent insulating layer and a titanium nanosheet/graphene-based fiber membrane, wherein the first transparent insulating layer covers one surface of the titanium nanosheet/graphene-based fiber membrane; the second transparent insulating layer covers the other surface of the titanium nanosheet/graphene-based fiber membrane, one end of the electrode is electrically connected with the titanium nanosheet/graphene-based fiber membrane, and the other end of the electrode extends out of the first transparent insulating layer or the second transparent insulating layer. According to the titanium nanosheet/graphene-based heating film, by means of the efficient photo-thermal conversion efficiency and electro-thermal conversion efficiency of the titanium nanosheet/graphene-based fiber film, the electro-thermal and photo-thermal diversified heat production functions are achieved.

The invention provides a palladium nanosheet/graphene-based traditional Chinese medicine hot compress device. The palladium nanosheet/graphene-based traditional Chinese medicine hot compress device ischaracterized by comprising a hot compress sleeve and a palladium nanosheet/graphene-based heating film, wherein a first accommodating bag is arranged at the outer side of the hot compress sleeve, and is used for accommodating the palladium nanosheet/graphene-based heating film; and a second accommodating bag is arranged at the inner side of the hot compress sleeve, and is used for accommodatinga traditional Chinese medicine bag. The palladium nanosheet/graphene-based traditional Chinese medicine hot compress device provided by the invention realizes the photo-thermal and electro-thermal diversified heat production function through the efficient photo-thermal conversion efficiency and electro-thermal conversion efficiency of the palladium nanosheet/graphene-based heating film, and achieves the effects of high active ingredient absorption rate, heat production stability and the like.

The invention discloses a preparation method and application of a polypyrrole photo-thermal film for intercepting VOCs in water pollution. The invention belongs to the field of water resource purification materials. The invention aims to solve the technical problems that an existing photo-thermal material can not separate VOCs existing in the form of synthetic organic matters in water and can notseparate volatile biological organic compounds generated by microbial metabolism in natural water. The method comprises the following steps: 1, spin-coating photoresist on the surface of a silicon wafer with a surface oxide layer; 2, photo-etching to prepare a micron-sized grid array structure; 3, soaking and eluting in a silicon dioxide removal solution; 4, treating in a KOH solution; and 5, electro-depositing polypyrrole, and removing the template to obtain the polypyrrole film with the micron silicon cone structure on the surface; or directly etching the silicon wafer without an oxide layerby using a KOH solution, and then electro-depositing polypyrrole to obtain the polypyrrole film. The photo-thermal material disclosed by the invention has the advantages of high photo-thermal conversion rate, good water quality purification effect and simple preparation process.

The invention discloses a heat storage type solar heat collection plate installation structure which comprises a sliding rail, a sliding block, a heat collection plate, a connecting rod, a bottom plate, a connecting plate, a connecting ring, wind retaining shed cloth, a vertical plate, a winding roller, a side plate, a fixed bolt, a constant-angle bolt, a seat plate, a rotary shaft, an adjusting pipe, a support leg and a heightening bolt. The connecting rod and the adjusting pipe are arranged on one side of the bottom end of the solar heat collection plate, and the other side of the bottom endof the solar heat collection plate is slidably connected into a sliding chute in the top end of the connecting plate; through adjusting the length of the connecting rod in the adjusting pipe, the angle of the heat collection plate relative to the ground is adjusted; the seat plate is rotatably connected to the middle of the bottom end of the bottom plate, so that the direction of the whole heat collection plate can be adjusted through rotating the whole seat plate; and through adjusting the angle and the direction, the heat collection plate can conveniently find a better illumination position, so that the photo-thermal conversion rate of the solar heat collection plate is high, and the use effect is good.

The invention relates to a solar heat collection system. The solar energy heat collection system comprises a detection device, a heat collection device, an energy storage device, a heating device, a water tank and a circulating pump. The detection device comprises a detection base. A detection rod is arranged on the detection base. The heat collection device comprises a heat collection base. A support plate is arranged above the heat collection base. A plurality of heat collectors are uniformly arranged on the top surface of the support plate. Four groups of lifting components are arranged between the support plate and the heat collection base. Each lifting component comprises a motor and a telescopic rod. The output end of each motor is connected with the fixed end of the corresponding telescopic rod, and the telescopic end of each telescopic rod is connected with the support plate. Sunlight at different time points irradiates the detection rod, so that shadows of different lengths are formed on the detection base, information is fed back to the system through sensors, and the system controls the four motors to drive the corresponding telescopic rods to extend, so that the plane position of the support plate is changed, namely, the included angle between the top surface of the support plate and the irradiated sunlight is changed, and thus the light-heat conversion rate is increased.

The invention provides a titanium nanosheet/graphene-based traditional Chinese medicine hot compress device. The device comprises a hot compress sleeve and a titanium nanosheet/graphene-based heatingfilm, a first containing bag is arranged on the outer side of the hot compress sleeve, the first containing bag is used for containing the titanium nanosheet/graphene-based heating film, a second containing bag is arranged on the inner side of the hot compress sleeve, and the second containing bag is used for containing a traditional Chinese medicine bag. According to the titanium nanosheet/graphene-based traditional Chinese medicine hot compress device, by means of the efficient photo-thermal conversion efficiency and electric-thermal conversion efficiency of the titanium nanosheet/graphene-based heating film, the functions of electric heating and photo-thermal diversified heat production are achieved, and the effects of being high in active ingredient absorption rate, stable in heat production and the like are achieved.

The invention provides a palladium nanosheetgraphene-based heating film, which comprises a first transparent insulating layer, an electrode, a second transparent insulating layer and a palladium nanosheetgraphene-based fiber membrane, wherein the first transparent insulating layer covers one surface of the palladium nanosheetgraphene-based fiber membrane, the second transparent insulating layer covers the other surface of the palladium nanosheetgraphene-based fiber membrane, one end of the electrode is electrically connected with the palladium nanosheetgraphene-based fiber membrane, and the other end of the electrode extends out of the first transparent insulating layer or the second transparent insulating layer. According to the palladium nanosheetgraphene-based heating film disclosed bythe invention, by virtue of the high-efficiency photo-thermal conversion efficiency and electro-thermal conversion efficiency of the palladium nanosheetgraphene-based fiber film, the electric heatingand photo-thermal diversified heat production functions are realized.