120 results about "Diimide" patented technology

The invention relates to the technical field of catalysts, and discloses a preparation method and application of a copper-based metal-organic framework catalytic material.The preparation method comprises the following steps that S1, cuprous salt, N, N '-bis (5-aminonicotinyl) naphthalimide and a solvent are mixed, and a mixture is obtained; s2, heating the mixture to a reaction temperature, carrying out a constant-temperature reaction, and cooling to obtain a crystal; and S3, washing and drying the crystal to obtain the copper-based metal-organic framework catalytic material. According to the preparation method of the copper-based metal-organic framework catalytic material provided by the invention, N, N '-bis (5-aminonicotinyl) naphthalimide is used as an organic ligand to prepare the copper-based metal framework Cu-PTD with N / O co-coordination, and the copper-based metal framework Cu-PTD has relatively strong electrocatalytic carbon dioxide reduction and electron transfer capabilities; and the catalyst has relatively high selectivity on electrocatalytic carbon dioxide reduction products.

The invention relates to the technical field of polyimide fibers, in particular to a method for preparing polyimide fibers of different color systems based on in-situ coloring, which comprises the following steps: carrying out condensation polymerization on perylene tetracarboxylic dianhydride compounds or perylene diimide, diamine monomers and dianhydride monomers to obtain a polyamide acid solution; adding acetic anhydride and pyridine into the polyamide acid solution for chemical ring-closure reaction to obtain a polyimide solution; and carrying out wet spinning on the obtained polyimide solution to obtain the colored polyimide fiber. The method for preparing the polyimide fibers of different color systems based on in-situ coloring is simple in process and environmentally friendly, and the prepared polyimide fibers of different color systems are high in color fastness and excellent in mechanical property.

The preparation method comprises the following steps: carrying out reflux reaction on 4-bromo-1, 8-naphthalic anhydride and primary amine in an organic solvent to obtain an intermediate product, and carrying out C-N coupling reaction on the intermediate product, a compound containing a nitrogen secondary amine electron-donating group, alkali and a catalyst in the organic solvent to obtain the double-state emission fluorescent dye. The two-state emission dye is obtained. An amino auxochrome group of a bridge ring structure is modified in a 4-bromine-1, 8-naphthalimide parent, the fluorescence quantum yield of the dye in a polar solvent is improved through the characteristic that nitrogen atom lone pair electrons of the nitrogen-containing bridge ring structure are not easy to overturn, and pi-pi stacking, which is not beneficial to emission, of the dye is inhibited through the large steric hindrance effect of the bridge ring structure; the dye shows bright fluorescence emission in non-polar and polar solvents, also has a very strong fluorescence quantum yield in a solid state, and shows a quantum yield greater than 94% when the dye is dispersed in an EVA (Ethylene-Vinyl Acetate) film.

The invention discloses a cellulose acetate based 1, 8-naphthalimide fluorescent probe for detecting Hg < 2 + > as well as a preparation method and application of the cellulose acetate based 1, 8-naphthalimide fluorescent probe. The preparation method comprises the following steps: by taking 4-bromo-1, 8-naphthalic anhydride as a raw material, carrying out condensation reaction on the 4-bromo-1, 8-naphthalic anhydride and 4-aminobutyric acid to prepare 4-(4-bromo-1, 8-naphthalic diimide) butyric acid (BNA-B); the BNA-B and piperazine are subjected to a substitution reaction, and a compound PNA-B is prepared; the PNA-B and 4-(bromomethyl) pyridine hydrochloride are subjected to a substitution reaction, and a compound PNA-B is prepared; and the PNA-B and cellulose acetate (CA) are subjected to an esterification reaction, such that the cellulose acetate-based 1, 8-naphthalimide fluorescent probe PNA-CA is prepared. The compound can specifically recognize Hg < 2 + >, after Hg < 2 + > is added into a PNA-CA acetonitrile / PBS buffer solution under 365nm ultraviolet irradiation, the fluorescence color of the solution is changed from colorless to yellow, the response time is 20s, the detection limit reaches 9.3 * 10 <-8 > M, and the probe has a good application prospect.

This invention discloses a cellulose acetate-based 1,8-naphthalenedimide fluorescent probe for detecting hydrazine, its preparation method, and its application. The invention uses 4-bromo-1,8-naphthalenedimide as a raw material, which undergoes a condensation reaction with 4-aminobutyric acid to obtain 4-(4-bromo-1,8-naphthalenedimide)butyric acid (BNA-B); BNA-B undergoes a coupling reaction with 4-formylphenylboronic acid to obtain 4-(4-(4-formylphenyl)-1,8-naphthalenedimide)butyric acid (FNA-B); compound FNA-B then undergoes an esterification reaction with cellulose acetate (CA) to obtain the cellulose acetate-based 1,8-naphthalenedimide fluorescent probe FNA-B-CA. This compound specifically recognizes hydrazine. Under 365 nm ultraviolet light irradiation, the addition of hydrazine to a DMF / H2O solution of FNA-B-CA changes the fluorescence color of the solution from bright blue to colorless, indicating a detection limit of 8.4 × 10⁻⁶ for hydrazine. ‑8 M has promising applications as a fluorescent probe for the detection of hydrazine.

The invention provides a polyglutamic acid granular fertilizer and a preparation method thereof, and the preparation method comprises the following steps: S1, dissolving lignin in an alkaline solution, and heating until the lignin is dissolved; adding epsilon-polylysine fermentation liquor, mixing, heating, adding a formaldehyde solution, and carrying out grafting reaction to obtain epsilon-polylysine grafted lignin; s2, mixing the epsilon-polylysine grafted lignin solution and the gamma-polyglutamic acid solution, adding N-hydroxysuccinimide, standing at a low temperature, adding 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, and mixing; carrying out gradient temperature reaction to obtain lignin grafted epsilon-polylysine / gamma-polyglutamic acid hydrogel; and S3, homogenizing the lignin-grafted epsilon-polylysine / gamma-polyglutamic acid hydrogel, carrying out normal-temperature high-pressure airflow crushing, and spraying the crushed hydrogel to the surfaces of particles obtained by granulating a basic material through high-pressure electrostatic spraying, so as to obtain the polyglutamic acid granular fertilizer. The obtained polyglutamic acid granular fertilizer has relatively strong water-retaining and slow-release (releasing water, urea and the like) effects.

The invention relates to the technical field of perovskite solar cells, in particular to an interface modification layer material, a perovskite solar cell and a preparation method of the perovskite solar cell. The material of the interface modification layer comprises a sulfonic acid modified aromatic diimide compound. The perovskite solar cell comprises a transparent conductive substrate, a hole transport layer, a perovskite layer, an electron transport layer and an electrode layer, wherein an interface modification layer made of the interface modification layer material is arranged between the perovskite layer and the electron transport layer. The interface modification layer prepared from the sulfonic acid modified aromatic diimide compound is introduced between the perovskite layer and the electron transport layer, so that perovskite surface defect passivation and energy level matching can be realized at the same time, the electron extraction efficiency is remarkably improved, the compound loss is reduced, and the photoelectric conversion rate of the cell is improved.

The invention discloses an organic semiconductor heterojunction photoelectric self-adaptive memristor and a preparation method thereof, and belongs to the field of neuromorphic devices, and the memristor sequentially comprises a substrate, a bottom electrode, a lower active layer, an upper active layer and a top electrode from bottom to top; the upper active layer is prepared from an organic material zinc phthalocyanine, and the lower active layer is prepared from an organic material N, N-tricosylperylene-3, 4, 9, 10-tetracarboxylic diimide. The memristor prepared by the invention realizes simulation of desensitization behavior and retina light adaptation function, and adaptivity modes are switched according to a stimulation type time-sharing trigger mechanism to support multi-mode perception and adaptive information processing in a dynamic environment, so that the development of a neuromorphic device for simulating the adaptivity function of a biological sensory system is promoted.

The application discloses an anticoagulant biomaterial for blood purification and a preparation method and application thereof, and comprises the following steps: providing an amphiphilic copolymer P(AA-MMA); blending polyethersulfone, P(AA-MMA) and a solvent, stirring at a set temperature to obtain a casting solution, and preparing a blending membrane from the casting solution; soaking the blending membrane in a 2-morpholine-4-yl ethanesulfonic acid buffer solution containing argatroban, 1-ethyl-(3-dimethylaminopropyl) carbonyl diimide and hydroxy succinimide, and reacting at room temperature to obtain an argatroban grafted blending membrane, namely the anticoagulant biomaterial. The method improves the hydrophilicity of the membrane, reduces the albumin adsorption of the membrane, reduces the adhesion of platelets on the membrane, prolongs the coagulation time APTT, PT and TT of the membrane, and is better in biocompatibility and enhanced in anticoagulation performance.

The invention discloses a wavelength selective photoresponse strontium-based metal organic framework eutectic material as well as a preparation method and application thereof. A metal node of the material is strontium ions, N, N '-bis (5-isophthalic acid) naphthalimide is used as a ligand, anthracene and a derivative thereof are used as objects, N, N-dimethylformamide is used as a solvent, and the material is obtained through solvothermal reaction. The material is composed of an electron donor (D) and an electron acceptor (A), and is a strontium-based MOF eutectic with an infinitely extended pi stacked A-D-D-A configuration. The MOF eutectic material has lattice characteristics of a tetragonal crystal system, a space group is I 41 / a, and cell parameters are a = b = 28.42240 (10), c = 13.71600 (10), and alpha = beta = gamma = 90 degrees. Sr-NDI at An has unique wavelength selective photoresponse property: ultraviolet light triggers [4 + 4] dimerization of an object anthracene, red light excites [4 + 2] reaction of anthracene and singlet oxygen, and near-infrared light induces generation of free radicals.

The application discloses a siloxane D-A-D type perylene diimide small-molecule electronic transport layer and a preparation method thereof. Bromine perylene diimide is reacted with a primary amine containing a siloxane end group, and then is coupled with triphenylamine through a Suzuki coupling reaction to synthesize a small-molecule conjugated electrolyte. The siloxane D-A-D type perylene diimide small-molecule electronic transport layer has the following beneficial effects: first, the secondary amine in the side chain can form hydrogen bonds with F and H in the active layer, improve the interface compatibility, and improve the contact with the active layer; second, the D-A-D structure can realize intramolecular charge transfer, and excellent electron mobility can be exhibited; third, a good n-type self-doping is obtained, the work function of a high-stability metal Ag can be reduced, an ohmic contact is formed, and therefore the photovoltaic performance of a device is significantly improved; fourth, the stability can be improved due to the hydrophobicity of the siloxane; and finally, triphenylamine has a special non-planar molecular structure, and can inhibit excessive aggregation of the material.

The present invention provides a gasoline engine lubricating oil composition comprising the following components: (A) an organophosphorus compound, accounting for 0.05% to 10% of the total mass of the composition; (B) an alkyldiphenylamine, accounting for 0.05% to 5% of the total mass of the composition; (C) polyisobutylene succinimide, accounting for 2% to 30% of the total mass of the composition; (D) a sulfonate and / or a sulfurized alkylphenol, accounting for 0.2% to 10% of the total mass of the composition; (E) a zinc dialkyl dithiophosphate, accounting for 0.2% to 10% of the total mass of the composition; (F) an organomolybdenum, accounting for 0.05% to 5% of the total mass of the composition; (G) an ethylene-propylene copolymer, accounting for 2% to 30% of the total mass of the composition; and (H) a major amount of a lubricating oil base oil. The structure of the organophosphorus compound is described in the specification. The gasoline engine lubricating oil composition of the present invention has excellent anti-wear, friction-reducing, antioxidant, and detergency properties, and can inhibit the formation of deposits in turbochargers.

This protein transport material contains a polycyclic compound having, in the main skeleton, one or two structures represented by general formula (1) (In the formula, Ar1 represents a condensed aromatic ring optionally having a substituent with the proviso that when R is a group having a primary, secondary or tertiary amino group or R is a group having a nitrogen cation-containing group, Ar1 is a condensed aromatic ring that is other than a perylene diimide ring and optionally has a substituent; R represents an anionic group or a cationic group; n represents an integer of 1 or more; and when n is an integer of 2 or more, the n number of Rs may be the same or different.) or general formula (5) (In the formula, R17 and R18 are the same or different and each represent an aryl group optionally having a substituent.). The protein transport material uses precisely synthesizable small molecules, has excellent protein transport efficiency, and is capable of transporting a protein into cells.

The application relates to the technical field of compound synthesis, and discloses an aromatic dipeptide functionalized mercapto compound, 3,5-di(triphenylmethylthio)benzoic acid is obtained by adding 3,5-di(methylmercapto)benzoic acid and pyridine into a solution of chloromethyl triphenylphosphonium, purifying after sufficient reaction; then the 3,5-di(triphenylmethylthio)benzoic acid is mixed with N-hydroxysuccinimide and dissolved in an organic solvent, EDC.HCl is added, purifying after sufficient reaction; then 2,5-dioxopyrrolidin-1-yl 3,5-bis(triphenylmethylthiomethyl)benzoate is obtained; then phenylalanine-tryptophan and triethylamine are added, purifying after sufficient reaction; then (3,5-bis(triphenylmethylthiomethyl)benzoyl)tryptophylphenylalanine is obtained; then trifluoroacetic acid and triethylsilane are added, purifying after sufficient reaction; and finally the aromatic dipeptide functionalized mercapto compound is obtained. The aromatic dipeptide functionalized mercapto compound can quickly and effectively identify sodium and potassium ions, and has relatively low detection limit and relatively loose detection condition.

The invention relates to the technical field of polyurethane adhesives, and discloses an antistatic semiconductor UV visbreaking adhesive layer, a protective film and a preparation method of the antistatic semiconductor UV visbreaking adhesive layer, and the antistatic semiconductor UV visbreaking adhesive layer is prepared by adding a perylene diimide modified carbon nanotube solution, a reactive diluent and a photoinitiator into a UV polyurethane solution. UV-polymerizable alkenyl is introduced into a polyurethane molecular chain, so that the peel strength is reduced after photocuring, and the viscosity-reducing and easy-to-peel effects are shown. A high-temperature-resistant perylene diimide condensed ring is introduced into a polyurethane main chain, so that the high-temperature resistance of an adhesive layer is improved. The carbon nano tube is subjected to non-covalent surface modification, so that the interfacial force with a polyurethane molecular chain is improved, the dispersity of the carbon nano tube in the viscosity-reducing glue becomes good, the carbon nano tube can be promoted to form a continuous conductive path, and the antistatic performance is improved. The viscosity-reducing adhesive has good practical application in the aspects of semiconductor chip wafer processing, high-temperature-resistant adhesives, antistatic adhesives and the like.

This invention belongs to the field of pharmaceutical chemistry technology, and discloses a compound and its uses. Specifically, it relates to a CRBN small molecule ligand compound based on a pyridazine-glutarimide core skeleton (PDG), its composition, and its application. It also relates to a protein degrading agent based on a CRBN small molecule ligand compound based on a pyridazine-glutarimide core skeleton (PDG) and its application. Specifically, the CRBN small molecule ligand compound is shown in (Ⅰ): wherein R... 1 and R 2 Selected from one or more of the following: fused rings attached to a pyridazine core, H, alkyl, OR, F, CN, CF3, NR2, Ph, 4-Py; Y selected from one or more of CH, CD, CF, and N; R 3 Selected from one or more of OR, NR2, CHR2, and C≡CR; R 4 Selected from H or alkyl.

Provided are a polycarbodiimide compound that enables an aqueous resin composition capable of forming a coating (layer) having water resistance and adhesion that can withstand use for food packaging to be obtained, an aqueous resin composition containing the polycarbodiimide compound, and a food packaging having a layer formed of the aqueous resin composition. A polycarbodiimide compound (A) represented by formula (1) below,wherein R1 represents a residue obtained by removing a functional group capable of reacting with isocyanate from a hydrophilic compound having the functional group capable of reacting with isocyanate, R2 represents a divalent residue obtained by removing an isocyanate group from an aliphatic diisocyanate compound, and R3 represents a divalent residue obtained by removing a hydroxyl group from a glycol compound having 2 or 3 carbon atoms; X represents a group that is formed by reaction between the hydrophilic compound and the aliphatic diisocyanate compound; n1 represents a number of 1 to 10, n2 represents a number of 1 to 10, and p represents a number of 2 to 4; and a plurality of R1 and R2 each may be the same or different.

This invention provides a method for constructing a donor-acceptor type perylene diimide-based porous conjugated polymer probe and detecting methamphetamine and amphetamine solutions. The method synthesizes donor-acceptor type perylene diimide-based porous conjugated polymer probes with different topologies by combining an electron acceptor perylene diimide derivative and an electron donor aggregation-induced emission fluorophore via a succinate coupling reaction. When used for the detection of methamphetamine and amphetamine, this system exhibits a clear ratiometric fluorescence response, with the fluorescence color gradually changing from yellow-green to orange and orange-red, demonstrating a significant ratiometric fluorescence response. It features fast response speed, high detection sensitivity, good selectivity, and no interference from other common structurally and property-similar substances, enabling the differentiation and identification of methamphetamine and amphetamine.

The present invention discloses a kind of 7-dehydrocholesterol-perylene diimide derivative and its preparation and application of fluorescent film, and utilizes the advantages such as the rigid structure and multiple chiral centers of 7-dehydrocholesterol to connect the conjugated fluorescent molecule with high fluorescence quantum yield, perylene anhydride, through a connecting arm. The synthesized fluorescent compound is used as a sensing element to prepare a fluorescent film, which can be used to detect a variety of banned drugs such as methamphetamines, and is applied to the field of banned drug detection. The present invention is simple to operate, and the reaction conditions are mild. The prepared fluorescent sensor film has high fluorescence quantum yield, good stability, low detection limit, long service life, and high detection sensitivity. It can be applied in sensors for detecting a variety of banned drugs such as methamphetamines. This type of fluorescent sensor film is installed in a portable fluorescence detector for supporting use to achieve rapid detection of banned drugs and improve the detection efficiency of banned drugs.

This invention discloses a photosensitizer with twisted π-conjugated charge transfer properties, its preparation method, and its applications. The preparation method of the photosensitizer includes the following steps: dissolving a quinolino[3,2,1-de]acridin-5,9-dione derivative, a perylene diimide with brominated position, and a basic substance in a first solvent to obtain a mixture; reacting a palladium catalyst with the mixture under a protective atmosphere; and after the reaction, extracting and purifying to obtain the photosensitizer with twisted π-conjugated charge transfer properties. The photosensitizer prepared by this invention uses a perylene diimide photoabsorbent group as an electron acceptor, which is then coupled with an electron donor group through a ring-closure reaction to prepare a photosensitizer with a twisted π-conjugated structure. The compound prepared by this invention has a long excited-state lifetime, high intersystem crossing efficiency, and suitable energy level structure, making it an ideal candidate material for photosensitizers and suitable for upconversion luminescence systems and visible light photocatalytic oxidation reactions.

The perylene diimide-TEMPO photosensitizer molecule, its preparation method and application belong to the technical field of functional materials. Based on the perylene diimide chromophore and TEMPO free radical, a new type of non-heavy atom perylene diimide-TEMPO photosensitizer based on the free radical promoted intersystem crossing mechanism is designed and synthesized. Compared with the traditional photosensitizer, the photosensitizer does not contain heavy atom, has the advantages of low toxicity, simple synthesis method, low price and the like, can efficiently generate singlet oxygen, and has a long triplet state lifetime. In addition, the triplet photosensitizer molecule can be used as a photoinitiator, has excellent performance of initiating free radical polymerization under xenon lamp, has good photobleaching performance, and can be applied to free radical photocuring of deep layer system.

The present invention relates to a polymer solar cell comprising an electron transport layer including a novel diimide derivative that comprises a naphthalene diimide or perylene diimide backbone. Since the polymer solar cell according to the present invention comprises an electron transport layer including an electrolyte composed of the diimide derivative, which can replace a ZnO thin film, a high-temperature process is not required during the manufacture of the polymer solar cell, and a high-efficiency inverted type polymer solar cell can be produced.

The invention belongs to the technical field of water treatment, and particularly relates to a water treatment composite flocculant and a preparation method thereof.The preparation method comprises the steps that in the argon atmosphere, tetrazoleacetic acid, amphoteric polyacrylamide, a pyridine borane complex and m-xylene are mixed and react for 12-48 h at the temperature of 140 DEG C, and tetrazoleacetic acid modified amphoteric polyacrylamide is obtained; adding tetrazoleacetic acid modified amphoteric polyacrylamide into a 2-morpholinoethanesulfonic acid buffer solution, cooling to 4 DEG C in an ice bath, sequentially adding 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride and N-hydroxysuccinimide into the solution, stirring and activating for 30 minutes in a nitrogen atmosphere, adding the chelate solution into the solution, and reacting to obtain the composite flocculant. The floc formed in the flocculation process of the flocculant shows higher stability under the shearing action of water, the floc is not easy to break, the flocculation effect is better, and the flocculant is convenient to use.

The application belongs to the technical field of photocatalytic materials, and particularly relates to a porous organic polymer based on perylene diimide and a preparation method and photocatalytic application thereof. The porous organic polymer is a cross-linked polymer based on perylene diimide derivatives. The molecular structure of the perylene diimide derivatives is that the polymer is formed by the perylene diimide derivatives through a Friedel-Crafts reaction or a Suzuki coupling reaction. Under light conditions, the sulfur benzamide compound can be photocatalytically oxidized and cyclized into a 1,2,4-thiadiazole compound quickly and with high selectivity.

The invention belongs to the technical field of polyurethane nano-film preparation, and relates to a preparation method of a high-moisture-permeability static-pressure-resistant double-effect enhanced polyurethane nano-film, which comprises the following steps: uniformly stirring and mixing perylene diimide fused ring modified waterborne polyurethane emulsion, polydopamine pre-polymerized emulsion, a defoaming agent and a flatting agent to obtain a mixed solution, coating base cloth with the mixed solution, and drying to obtain the high-moisture-permeability static-pressure-resistant double-effect enhanced polyurethane nano-film. And drying and stripping to obtain the high-moisture-permeability static-pressure-resistant double-effect enhanced polyurethane nano film. According to the preparation method of the high-moisture-permeability static-pressure-resistant double-effect enhanced polyurethane nano-film, perylene diimide fused ring modified polyurethane with a rigid plane structure and strong pi-pi stacking capacity and polydopamine with self-polymerization capacity and surface anchoring characteristic are compounded for application, so that the high-moisture-permeability static-pressure-resistant double-effect enhanced polyurethane nano-film is prepared; a hydrogen bond network between a phenolic hydroxyl group of polydopamine and a carbonyl group of polyurethane provides dynamic crosslinking, so that a core-shell structure is formed, efficient water molecule transmission is realized, and the water penetration resistance is remarkably enhanced.

The invention discloses a preparation method and application of an active supramolecular assembly (LSA). According to the method, the two-dimensional confinement effect of layered double hydroxide (LDH) is utilized, and perylene diimide (PDI) monomers successfully form LSA with the intermolecular distance smaller than that of crystals. The enhancement value of a built-in electric field (IEF) can reach 11.8 times, the charge separation efficiency is 71.52%, and the photocatalytic phenol degradation rate is 1.28 h <-1 >. The universality of the method can pave a road for exploring other multifunctional monomers, so that the progress of material science, chemical synthesis and efficient photocatalysis is promoted.

The present disclosure provides redox flow batteries with long duration or long life for energy storage applications. The water-soluble perylene diimide molecule can be used as an energy storage material in an anode chamber. The water-soluble ferrocenyl molecules can be used as energy storage materials in cathode chambers. The redox flow battery has a negligible cross permeability across the membrane.

The present invention discloses a compound based on a benzimidazole-1-ylmethanol core, a preparation method thereof, and an application thereof. The compound of the present invention has a structure shown in Formula I or Formula II: in Formula I, R is selected from 2-mercaptobenzothiazolyl, N-hydroxysuccinimide, N-(tert-butyloxycarbonyl)-toluenesulfonamide or tetrahydro-2H-pyran-2-hydroxyl; X is selected from O, S or N; in Formula II, R' is selected from at least one of thiophene sulfone, 2-sulfoxide benzothiazolyl and 4-nitrophthalimide. The compound of the present invention can prevent metal from being corroded in an alkaline environment and the pH value of the test solution does not decrease significantly. At the same time, the present invention can select suitable chemical reagents and chemicals to carry out structural modification on the compound based on "benzimidazole-1-ylmethanol" as the core to obtain compounds with different anti-corrosion properties to meet different application requirements.

The invention discloses a CoOxT-perylene diimide composite photocatalyst with a size effect and a preparation method and application thereof.The preparation method comprises the steps that biuret, perylene 3, 4, 9, 10 tetracarboxylic dianhydride, anhydrous zinc acetate and imidazole are subjected to a first reaction, and a perylene diimide photocatalyst is prepared; and dispersing the perylene diimide photocatalyst in water, then adding a cobalt source, carrying out a second reaction, then carrying out rotary evaporation, and annealing at 250-400 DEG C in argon. By changing the annealing temperature, the size of the CoOx nano particles can be regulated and controlled, and the CoOx nano particles have good photocatalytic water decomposition and oxygen evolution performance. More importantly, the CoOx nanoparticles have a size effect on photocatalytic water decomposition oxygen evolution, that is, the CoOxT at perylene diimide shows regularly-changed oxygen evolution performance along with the change of the size of the CoOx nanoparticles. The method is mild in operation, easy to control, good in reproducibility and high in material yield.

The present application provides a fused ring diimide derivative, which has a chemical structure described in formula I. The present application also provides a preparation method thereof. The fused ring diimide derivative of the present application has excellent anti-tumor activity, and the anti-proliferation activity on various cancer cells is significantly better than that of similar compounds.