84 results about "Metal clusters" patented technology

The invention relates to a porphyrin-based iron metal organic framework (Fe-TCPP) catalyst for improving photoresponsiveness, which is characterized in that the Fe-TCPP nano catalyst is prepared by using an iron source and meso-tetra (4-carboxyphenyl) porphin (TCPP) as precursors through a simple solvothermal method, assisting coordination by virtue of polyvinylpyrrolidone (PVP), performing sealed reaction after ultrasonic dispersion, and preparing the Fe-TCPP nano catalyst. A purple suspension is obtained. And centrifuging, washing and drying to obtain the nano rod-shaped Fe-TCPP metal organic framework material. The Fe-TCPP catalyst prepared by the preparation method disclosed by the invention has a regular crystal structure and good dispersity, and can be stably coordinated to form a Fe-O cluster structure. The effective introduction of the TCPP enhances the charge transfer (LCCT) capability from the ligand to the metal cluster, effectively promotes the Fe (III) / Fe (II) circulation, and improves the photocatalysis-ozonation catalytic efficiency. The catalyst has the advantages of high thermal stability, less metal ion dissolution, good cycle performance and the like, and has wide application potential in the field of water treatment.

The invention relates to the technical field of photocatalysis, in particular to a terbium and cerium doped MIL-177 confinement multi-metal cluster photocatalyst, which is prepared from terbium / cerium double metal elements, an MIL-177 metal organic framework, a multi-tungsten phosphomolybdate nanocluster and L-cysteine, according to the photocatalyst, an MIL-177 metal organic framework modified by terbium / cerium double metal elements is used as a substrate, a multi-tungsten phosphomolybdate nanocluster is used as an active center, microwave hydrothermal synthesis and solvothermal synthesis are performed, and L-cysteine surface modification is performed. Double metal elements terbium and cerium doped aluminum-based metal organic frameworks are combined with multi-tungsten phosphomolybdate nanoclusters, and surface modification is performed through L-cysteine, so that the visible light absorption range is widened, efficient separation of photo-generated charges is realized, catalytic active sites are increased, and the efficiency and selectivity of photocatalytic reduction of carbon dioxide are improved.

The invention discloses an isomorphic bismuth oxide cluster material as well as a preparation method and application thereof. Bismuth atoms have a relatively high EUV absorption cross section, and the bismuth atom type photoresist is low in toxicity, low in environmental pollution and beneficial to green and environment-friendly production and processing. According to the method for preparing the bismuth oxygen cluster, a bismuth source and carboxylic acid ligands are synthesized into the bismuth oxygen cluster through an ultrasonic standing method or a heating and stirring method by controlling mixing conditions. According to the synthesis method of the bismuth oxygen cluster, the bismuth oxygen metal oxygen cluster containing various carboxylic acids can be synthesized. The bismuth oxide cluster structure has the size of about 2nm and uniform distribution, and can effectively improve the resolution of the bismuth oxide cluster photoresist. Besides, by carrying out structural regulation and control on the bismuth source and the carboxylic acid ligand, the photoetching performance of the material can be optimized, an electrophilic or electron donating group can be introduced, and the dissolving property of the patterned material can be regulated, so that the film thickness, the film roughness, the resolution ratio, the film adhesion and the etching resistance are influenced.

The invention discloses a preparation method and application of a defect engineering modified MOFs composite perfluorosulfonic acid proton exchange membrane. According to the composite proton exchange membrane prepared from the perfluorinated sulfonic acid resin and the defect disulfonic acid group MOFs synthesized through microwave assistance, high conductivity and good stability of the proton exchange membrane are achieved in a simple and efficient mode. Microwave radiation has strong energy, the reaction speed can be increased, part of metal clusters are not coordinated with ligands in time, and rich defects are generated in MOFs. The MOFs with proper structure defects can increase the pore volume, form special sites for promoting proton conduction, and form a hydrogen bond network by adsorbing water molecules or functional groups, so that the proton transmission efficiency is remarkably improved. Meanwhile, the sulfonate group also provides a proton source for proton conduction and constructs a hydrogen bond channel for adsorbing water molecules. The MOFs nanofiller and the perfluorosulfonic acid polymer have good compatibility, and good mechanical performance, thermal stability and proton stability of the composite membrane are ensured.

The invention relates to the technical field of gas adsorption composite materials, in particular to zirconium-based MOF composite filter cloth and a preparation method and application thereof. The preparation method comprises the following steps: by taking a polyester non-woven fabric as a flexible carrier, sequentially carrying out alkali liquor activation and epoxy silane surface treatment to construct an active interface layer rich in epoxy groups; synthesizing a difunctional organic ligand simultaneously containing carboxylic acid and thioether functional groups by adopting a one-pot condensation reaction; in-situ self-assembly of zirconium metal clusters and bifunctional ligands is realized through a solvothermal-hot pressing synergistic process, oriented growth of MOF crystals on the surfaces of fibers and covalent interface connection formed through epoxy-carboxyl ring-opening reaction of a silane coupling agent are synchronously completed, and the MOF composite filter cloth is obtained. According to the zirconium-based MOF composite filter cloth disclosed by the invention, the efficient and high-selectivity capture of trace SOs is realized by utilizing the synergistic effect of thioether groups in ligands and unsaturated sites of metal clusters, and the regeneration is realized to a certain extent.

The invention provides an atomic precision metal cluster containing a multi-layer ligand spherical shell and a water phase synthesis method of the atomic precision metal cluster. The aqueous phase synthesis method comprises the following steps: performing first mixing on a metal precursor aqueous solution and a ligand aqueous solution, supplementing water to obtain an initial solution, and performing second mixing; then adding a reducing agent aqueous solution to obtain a reaction mixed solution; carrying out first stirring on the reaction mixed solution, concentrating, carrying out second stirring, and supplementing water; and repeating the operations of concentration, secondary stirring and water supplementation to obtain the atom precise metal cluster containing the multilayer ligand spherical shell. The multi-layer ligand spherical shell is adopted to protect the cluster, so that the cluster core can stably exist in an extremely long time without obvious change, and co-production, storage and utilization of related clusters are facilitated; and the metal clusters with uniform size and precise atoms can be directly obtained and have the same molecular weight, so that the post-treatment step can be simplified, and the feasibility of product amplification and application is enhanced.

This invention relates to the field of photocatalytic materials technology, disclosing an atomic-level catalytic material, its preparation method, and its application. The method includes mixing nickel chloride with deionized water to form a solution, adding thiourea and mixing thoroughly to obtain a mixture; ultrasonically treating the mixture and continuously stirring until completely dissolved; drying the dissolved solution in an oven to obtain a solid powder; placing the solid powder in a muffle furnace and calcining it in air, then cooling to obtain the atomic-level catalytic material. This atomic-level catalytic material exhibits a nanoflower-like structure, containing nickel elements distributed in single-atom form, without metal clusters. This invention is applied to the photocatalytic carbon dioxide reduction reaction. The introduction of nickel single atoms promotes the separation and migration of photogenerated charge carriers within the material, causing the carbon dioxide reduction reaction pathway to favor methane production, thus improving the selectivity of the target product in the catalytic reaction.

The application belongs to the technical field of polymer material recycling and catalytic chemistry, and discloses a composite catalyst for PET waste bottle alcoholysis and a preparation method thereof. The composite catalyst is based on biomimetic enzyme engineering and dynamic covalent chemistry strategy, and comprises a binuclear metal cluster active center, a limited microenvironment shell layer and a dynamic covalent network skeleton. The binuclear metal cluster is constructed by zinc / cobalt / manganese ions and a tridentate ligand C9H8N2O4, the shell layer is a polydopamine derived functional polymer, and the skeleton is formed by cross-linking aromatic and aliphatic monomers through borate ester bonds. The application solves the performance degradation problem caused by the instability of the active center of the existing enzyme-like catalyst in industrial circulation application. The catalyst not only has the enzyme-like catalytic characteristics of high activity and high selectivity, but also realizes self-repairing after damage through the built-in multiple dynamic chemical mechanism, thereby providing a new catalytic material with performance and durability for efficient and sustainable chemical recycling of PET waste bottles.

The application belongs to the technical field of electrocatalytic material structure screening and design, and discloses an evaluation method for regulating stability of diatomic catalytic structure by using metal clusters. The method firstly constructs a diatomic catalyst PtTMN6, TM is a transition metal atom, and anchors a Pt4 tetrahedral cluster above the diatomic atom; then, by means of ab initio molecular dynamics simulation, the stability mechanism of the Pt4 cluster to the diatomic atom under high-temperature vacuum environment, hydrogen reduction atmosphere and normal-temperature aqueous solution environment is explored in sequence, so as to screen the most stable catalytic material configuration; the above different systems can exhibit different degrees of stability at high temperature, and the intrinsic factor analysis of the above stability modes by using COHP, differential charge density and Bader charge shows that the PtNi system structure stability is the best. The application firstly introduces the inevitable metal cluster in the experimental preparation into the stability evaluation framework, and solves the problem that the microstructure of the calculation model is disconnected with the actual configuration.

The invention discloses a coordination compound with an olefin coordination trinuclear zirconium cluster structure and a photoresist composition containing the coordination compound. The chemical formula of the coordination compound is [(CpZr) 3 (mu2-OH) 3 (mu3-O) X3], and Cp is a cyclopentadienyl ring; x is a ligand formed after the organic carboxylic acid loses hydrogen atoms on carboxyl, the chemical formula of the organic carboxylic acid is R-COOH, and R is an organic group. The material has a trinuclear metal cluster structure. Compared with a traditional photoresist polymer, the coordination compound disclosed by the invention has a relatively small molecular size, and a better photoetching resolution can be obtained; meanwhile, according to the coordination compound disclosed by the invention, the corrosion resistance can be effectively improved by introducing a cyclopentadienyl ring into a cluster structure, so that the resolution ratio and the characteristic size of a photoetching pattern are improved, and huge application potential is shown.

The application discloses a cluster type self-healing nickel oxyhydroxide / iron-nickel electrode and application thereof in hydrogen production by cracking of saline water, and steps are as follows: under a three-electrode system, a foam metal is used as a working electrode, a cyclic voltammetry method is adopted in a potassium hydroxide solution electrolyte, and a metal cluster dispersion liquid is obtained; under the three-electrode system, a nickel iron / nickel MOF is used as the working electrode, the metal cluster dispersion liquid is used as the electrolyte, the cyclic voltammetry method is adopted, and a target electrode is obtained; and the target electrode is used in hydrogen production by cracking of saline water or a whole reaction of cracking of saline water in the electrolyte obtained by mixing the metal cluster dispersion liquid and the saline water. The target electrode has higher activity and durability and good self-healing performance under the saline water and industrial large current density (500 mA cm ‑2 ).

The invention discloses a magnetic nano composite material, a preparation method and application of the magnetic nano composite material in fluorine-containing wastewater treatment. The preparation method of the magnetic nano composite material comprises the following steps: S1, preparing superparamagnetic Fe3O4 nano particles as magnetic cores; the surface of the magnetic core is coated with SiO2 to form a Fe3O4 coated SiO2 core-shell structure; s2, by taking the Fe3O4 coated SiO2 core-shell structure as a substrate, growing an MOF layer composed of zirconium (Zr) metal clusters on the surface of the Fe3O4 coated SiO2 core-shell structure to form an MOF composite material Fe3O4 coated SiO2 coated UiO-66 (Zr); and S3, carrying out amino functionalization treatment on the MOF, so as to form the ammonia modified MOF composite material Fe3O4 (at) SiO2 (at) UiO-66 (Zr)-NH2. The composite material is small in mass transfer resistance, can be recycled from water through magnetic separation after being used, can be repeatedly used after being regenerated, and solves the problems of limited adsorption capacity, difficulty in separation, high regeneration cost and the like in the existing low-concentration fluorine-containing wastewater treatment technology.

The invention discloses a protonated Cu-HHTP hydrogen sulfide gas-sensitive material as well as a preparation method and application thereof, and belongs to the technical field of gas sensors and metal organic framework materials, the gas-sensitive material is based on Cu3 (HHTP) 2 (Cu-HHTP), and an exposed copper metal cluster can be used as an adsorption / desorption site of H2S gas molecules, so that the gas-sensitive material can be applied to the field of gas sensors and metal organic framework materials. Therefore, the material has response capability to H2S in an intrinsic state. By carrying out protonation treatment on the material, introduced H < + > provides a richer electron transmission channel while effectively reducing the intrinsic resistance of the material, so that the conduction efficiency of H2S in a material system is remarkably enhanced. In addition, due to the inherent lamellar morphology and porous rod-like structure of Cu3 (HHTP) 2, the material is endowed with the characteristic of high specific surface area. The structural advantage is combined with the protonation design to jointly improve the gas-sensitive property of the material.

The invention discloses an oxidation-reduction heterogeneous cluster framework material as well as a preparation method and application thereof, and belongs to the technical field of framework materials and catalysis. The oxidation-reduction hetero-cluster framework material provided by the invention comprises a polyoxometallate unit and a transition metal cluster unit, the polyoxometallate unit and the transition metal cluster unit are connected through a bridging unit. The polyoxometallate unit is used as an oxidizing unit, the transition metal cluster unit is used as a reducing group, the polyoxometallate unit and the transition metal cluster unit are connected through the bridging unit to obtain the oxidation-reduction heterogeneous cluster frame material, photo-generated charge separation and substrate mass transfer are facilitated, multi-step reactions can be catalyzed, and the reaction efficiency is improved. The catalytic activity and the cycle performance are good; particularly, the carbon-hydrogen bonds can be effectively subjected to photocatalytic oxidation, so that one-pot photocatalytic oxidative imidization of the carbon-hydrogen bonds can be realized under mild conditions.

The invention relates to a copper nanocluster / fullerol nano composite material, a polymer nonlinear optical thin film and a preparation method and application of the polymer nonlinear optical thin film, and the copper nanocluster / fullerol nano composite material is a nano composite material which is formed by inducing self-assembly of Cu6 and hydroxyl fullerene C60-OH in an aqueous solution through hydrogen bond interaction and has a nano structure. The nonlinear absorption coefficient of the film obtained by adopting the copper nanocluster / fullerol nanocomposite material is as high as 35.5 * 10 < 4 > cm / GW when the laser energy is 1 mu J, and the optical limiting threshold value is as low as 0.008 J / cm < 2 >, so that the film is obviously superior to the existing metal cluster-based material. The method is simple and convenient in process and environment-friendly, and the prepared film has important application value in the fields of laser protection and precision optical equipment safety.

The present invention provides a method for detecting DNA methylation, comprising reacting a DNA of a gene with a metal cluster modified with a molecule having a function for binding DNA, amplifying signals of methylated bases in the DNA by surface-enhanced Raman scattering (SERS) spectroscopy, and detecting the DNA methylation based on the SERS spectrum.

The embodiment of the invention provides a preparation method of a nanopore film, which comprises the following steps: firstly, forming a plurality of nano-scale metal groups on the surface of a substrate, then carrying out plasma etching on the substrate to form nanopores at target positions of the substrate, the target positions comprising the positions where the nano-scale metal groups are located, etching gas adopted in the plasma etching comprises carbon-containing gas and oxygen-containing gas; thus, in the etching process, active free radicals dissociated from the etching gas are enriched at the position of the nanoscale metal group by utilizing the carbon dissolving capacity of the nanoscale metal group, so that the etching rate at the position of the nanoscale metal group is increased, and meanwhile, the oxygen-containing gas destroys a protective film formed by the carbon-containing gas; and further increase of the etching rate at the position of the nanoscale metal group is facilitated, so that the etching rate at the position of the nanoscale metal group is far higher than that at other positions. By adopting the method, the preparation cost of the nanopore film can be reduced.

The invention belongs to the technical field of hydrogen storage material preparation, and provides an in-situ synthesized MOFs hydrogen storage material preparation method and a hydrogen storage material.The preparation method comprises the steps that ZrCl4 and HCl of a certain mass are mixed and stirred at the room temperature for a first set duration at the preset rotating speed; adding a solvent and a ligand into the stirred ZrCl4 and HCl mixed solution, and stirring for a second set time at a preset rotating speed; and putting the mixed solution added with the solvent and the ligand into a polytetrafluoroethylene reaction bottle for heating reaction to obtain the MOFs hydrogen storage material. In UiO-67 synthesis, HCl and ZrCl4 are added in advance to be mixed, so that the ZrCl4 is instantly subjected to Cl <->-assisted pre-hydrolysis at room temperature, metal clusters are generated, a metal framework is locked, reversible Cl <-> is used for occupying sites, and Cl <-> and long-chain 4, 4-diphenyldicarboxylic acid are subjected to precise exchange crystallization subsequently, and the problems of lattice defects and large specific surface area batch difference caused by different nucleation growth rates are thoroughly eliminated; meanwhile, the strong acid environment inhibits Zr < 4 + > hydrolysis precipitation, the single-kettle yield is doubled, and the stability and hydrogen storage performance of the material are guaranteed.

A large-area transparent reflective panel using nanoclusters and method for manufacturing the transparent reflective panel. The transparent reflective panel includes a light transmissive medium and a plurality of metal clusters formed on the light transmissive medium. Each of the metal clusters includes unit metal bodies spaced apart from each other and formed on the light transmissive medium.

A transition metal cluster compound is capable of realizing fine circuit patterns, a photosensitive composition contains the transition metal cluster compound, and a pattern forming method uses the photosensitive composition. The transition metal cluster compound contains transition metal elements and a ligand represented by the following general formula (1):wherein R1 is a hydrocarbon chain having one or more carbon atom.

The invention belongs to the technical field of copper-based catalytic materials and water treatment, and particularly relates to a solar thermal field-electro-catalysis synergistic copper-based catalytic material for groundwater pollution remediation, a preparation method, a water treatment device and application. According to the copper-based catalytic material, the high catalytic activity of copper single atoms, the plasmon resonance effect of metal clusters and the excellent H2O activation capacity of a CN substrate are utilized, the photothermal effect is generated through optical excitation, the mass transfer rate of H2O to the substrate is remarkably increased, the dissociation reaction of H2O is promoted, protons and active hydrogen are efficiently generated, and electrochemical hydrodehalogenation and NO3-electrocatalytic reduction are driven. The process effectively solves the problem of reaction kinetics limitation caused by low proton transfer efficiency in the traditional process, greatly accelerates proton transfer and optimizes electron-proton cooperative transfer efficiency, and provides a new way for research and development of groundwater organic-inorganic pollution cooperative treatment and sustainable development technologies. The method has the advantages of remarkable environment and energy conversion.

The invention provides a photosensitive material film, a patterned film, a patterned substrate, a semiconductor device and a preparation method thereof, the photosensitive material film comprises an amorphous organic metal compound, and the amorphous organic metal compound comprises a metal cluster skeleton and a polydentate ligand in coordination connection with the metal cluster skeleton; the metal cluster skeleton comprises metal atoms or comprises metal atoms and oxygen atoms; the polydentate ligand comprises at least two coordination atoms, and the polydentate ligand is in coordination connection with metal atoms in the metal cluster framework through the coordination atoms. The photosensitive material film provided by the invention can form an irregular reticular framework molecular structure, the coordination bond in the structure is weak in bond energy, good in solubility and small in rigidity, the prepared pattern is high in resolution, low in edge roughness and low in required exposure energy, and the photosensitive material film is applied to preparation of semiconductor devices, so that the comprehensive performance of the semiconductor devices can be improved.

A method for producing a thermal catalyst according to the present disclosure comprises: a step for heating a liquid containing a plurality of solvents in which metal ions or metal cluster ions and organic ligands are dissolved, and synthesizing a metal organic framework (MOF); a step for combusting the MOF at a temperature of 600°C or lower and converting the MOF into a metal oxide having a (111) plane occupying a larger area than the (100) plane thereof; and a step for causing the metal oxide to support metal nanoparticles.

Aspects of the disclosure relates to articles, compositions, and systems for several optoelectronic applications. In some embodiments, the disclosure relates to the metal organic frameworks (MOF). The MOFs comprise a plurality of metal clusters and a plurality of ligands that are coordinated with the plurality of metal clusters. Some aspects of the disclosure relate to the luminescent MOFs and the various synthetic methods for their preparation. Some aspects also disclose one or more mechanisms unveiled by luminescent MOFs for various OLED applications. In some embodiments, the disclosure relates to the lanthanide-based metal organic frameworks for OLED applications. Some aspects of the disclosure focus on the versatile coordination chemistry shown by the lanthanides along with the structural tunability of MOFs, thereby resulting in exceptional luminescence, high thermal stability and tuneable electronic properties. In some embodiments, the disclosure relates to the enhancement of the luminescent behaviour by the utilization of dual-based lanthanide metal-organic frameworks. Lastly, in some embodiments, the disclosure relates to the zirconium-based and zinc-based MOFs due to their stability and tuneable luminescence behaviour. Thus, the lanthanide-based MOFs play an important role in shaping the future of advanced photonic and optoelectronic devices due to their outstanding characteristic properties and their ability to integrate multiple functionalities within a single framework.

The present invention discloses a double-bond-connected two-dimensional metal cluster-based MCOF, as well as a preparation method and application thereof. The MCOFs are composed of an aldehyde group of a three-linked molecule A and a methyl group of a three-linked molecule B, which are interconnected in a two-dimensional plane through a condensation reaction to form a double bond. In at least a portion of the MCOFs, each three-linked molecule A is connected to three adjacent three-linked molecules B, and each three-linked molecule B is connected to three adjacent three-linked molecules A, forming a two-dimensional HCB topological network structure. The MCOFs of the present invention have high crystallinity and a unique pore structure. Due to the high stability of the ethylene bond, this novel MCOF exhibits excellent application potential in electrocatalytic nitrate reduction.

The present invention discloses a surface-functionalized metal cluster and its application, relating to the field of battery materials. The metal cluster comprises a metal core and a surface-functionalized layer, wherein the metal core is selected from one or more of copper (Cu), silver (Ag), and gold (Au), and the surface-functionalized layer contains fluorine element (F) and iodine element (I). When the metal cluster is applied to the surface of an all-solid-state lithium metal anode, it can effectively inhibit the growth of lithium dendrites, relieve volume expansion, and improve interfacial stability, thereby improving the performance of the all-solid-state lithium metal battery.

The invention discloses a metal cluster synthesis method, which belongs to the field of electrochemistry and comprises the following steps: in an alkaline electrolyte, taking a pre-prepared graphite flake (D / O-C) containing oxygen-enriched carbon pits as a working electrode, Hg / HgO as a reference electrode and a pre-prepared metal anode as a counter electrode; a metal source is subjected to electro-deposition under the constant-current polarization conditions that the current density is-200mAcm <-2 >, the atmosphere is air, and the reaction environment temperature is the room temperature of 20-25 DEG C to obtain the corresponding metal cluster. According to the invention, cheap, easily available and efficient graphite flakes are used as electrodes, the reaction conditions are mild, heating is not needed, energy is saved, operation is simple, products are easy to separate, and the catalyst is easy to recover. The method has the advantages of being high in controllability, high in efficiency, wide in applicability, easy to achieve automation and large-scale production, environmentally friendly and the like.

The invention relates to the technical field of catalysts, in particular to a ruthenium-based composite nanomaterial and a preparation method and application thereof. The strong interaction between the amorphous ruthenium nanosheet carrier and the cluster can effectively fix cluster atoms and prevent the cluster atoms from migrating and agglomerating in the preparation and reaction processes; the existence of a large number of clusters with high activity and high surface atoms is ensured; and the strong interaction creates a bifunctional catalytic site which does not exist on a single metal. H is adsorbed and dissociated on a Pd site,-OH species are adsorbed on an adjacent defect-rich Ru site, and then the H and the-OH species quickly react at an interface to generate water, so that the efficiency is greatly improved. In addition, the introduction of the amorphous ruthenium nanosheets can promote the oxidation of carbon monoxide on the surface metal clusters, thereby enhancing the anti-poisoning ability of the catalyst.

The present invention discloses a high-stability metal@molecular sieve catalyst for alkane dehydrogenation suitable for a fixed bed, and its preparation method and application. The catalyst is prepared by adding a specific polyol to the molecular sieve synthesis to adjust the a-axis size of the molecular sieve grains, thereby obtaining a large-grain molecular sieve carrier, and stably encapsulating active metal clusters in the pores of the large-grain molecular sieve carrier to obtain the catalyst, wherein the a-axis length of the molecular sieve carrier grains is 0.07 to 4.00 μm, the size of the active metal clusters is 0.50 to 0.70 nm, and the metal is any one of Pt, Pd, Ir, and Rh. The catalyst obtained by the present invention can be applied to the high-temperature dehydrogenation reaction of ethane, propane, and butane. During the reaction process, the metal clusters do not sinter, and thus can remain completely inactivated during the reaction process of up to 6 months, with good prospects for promotion and application.

The invention relates to a TiO2 catalyst loaded with monatomic doped MoS2 as well as a preparation method and application of the TiO2 catalyst, and belongs to the technical field of photocatalysis. The TiO2 catalyst loaded with the monatomic doped MoS2 comprises TiO2 and MoS2 loaded on the surface of the TiO2, and the MoS2 is doped with transition metal monatomic. The transition metal monatomic comprises one of Co and Ni, and the MoS2 has a nanolayer structure. According to the invention, a heterostructure is constructed by using a monometal atom doped precursor, so that the formation of metal clusters is avoided; monatomic doping and heterojunction construction are integrated in one synthesis step, the operation method is simple, and the doping effect can be achieved while the heterojunction is constructed; the prepared TiO2 catalyst loaded with the monatomic doped MoS2 has excellent hydrogen production performance.