Vacancy-induced ruthenium-loaded zinc indium sulfide nanotube with photooxidation activity as well as preparation and application of vacancy-induced ruthenium-loaded zinc indium sulfide nanotube
A photo-oxidation and nanotube technology, applied in catalyst activation/preparation, preparation of organic compounds, preparation of carbon-based compounds, etc., can solve the problems of low carrier utilization and charge transfer, weak oxidation ability, etc. Efficiency improvement, promotion of formation and transfer, and effect of enhancing photocatalytic activity
Pending Publication Date: 2022-04-22
ANHUI UNIVERSITY
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[0003] Purpose of the invention: In order to solve the problem of weak oxidation ability caused by low carrier utilization and charge transfer in semiconductors existing in the prior art
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[0028] Will In(NO 3 ) 3 ·xH 2 O and H 2 BDC was mixed and dissolved in DMF, stirred until clear and transparent, and then the resulting solution was placed in an oil bath and heated for a period of time. After cooling to room temperature, the upper liquid was poured out, and the remaining white solid was centrifuged and washed with ethanol until the excess ions in the solution were completely removed, and finally the obtained product was vacuum-dried at 60°C overnight for future use. Such as figure 1 Shown is the SEM image of the hexagonal prism-type In-MOF nanorods, indicating that the synthesized MIL-68 has a hexagonal prism rod-like structure with uniform size and smooth surface, with an average length of 6um and a diameter of about 500nm.
[0029] Disperse the MIL-68 prismatic precursor obtained above into an ethanol solution containing thiourea, stir, and then add Zn(CH 3 COO) 2 The ethanol solution was stirred again, and finally, the reaction solution was poured in...
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The invention belongs to the field of photocatalytic materials, and particularly relates to a method for preparing a defect-rich ZnIn2S4 nanotube with a unique nepenthes-imitating structure by taking MIL-68 (In-mof) as a morphological template based on an MOF derivation strategy, and inducing deposition of monodispersed Ru nanoparticles by utilizing surface defects of the ZnIn2S4 nanotube. The influence mechanism of interface carrier separation on efficient active oxygen generation and benzyl alcohol oxidation is disclosed. Research results show that the nepenthes-imitated hollow nanotube structure increases the capture of photons and enhances the adsorption of reactant molecules. Besides, the design of the metal semiconductor interface not only induces the generation of more defects and promotes the separation of electron hole pairs, but also provides more effective adsorption sites for reactant molecules and oxygen molecules, and the optimized electron transfer path provides possibility for the generation of higher-concentration active oxygen, so that the potential safety hazard is eliminated. Organic molecules can be effectively oxidized, so that the whole benzyl alcohol conversion reaction is driven.
Description
technical field [0001] The invention belongs to the technical field of photocatalyst materials, in particular to a kind of multilevel ZnIn derived from MOF 2 S 4 Preparation and Application of Ru Nanotubes Background technique [0002] In organic synthesis and chemical industry, the selective oxidation of alcohols to produce aldehydes plays a vital role, because the prepared aldehydes are important intermediates in the synthesis of perfumes and medicines. (Guo Z, Liu B, ZhangQ, et al.Recent advances in heterogeneous selective oxidation catalysis for sustainable chemistry[J].Chemical Society Reviews,2014,43(10):3480- 3524.SunX,ZhangX,XieY.Surface Defects in Two- Dimensional Photocatalysts for Efficient Organic Synthesis[J].Matter,2020,2(4):842-861). However, in industrial production, the selective oxidation of alcohols is usually achieved by traditional oxidants, such as permanganate and dichromate, under high temperature and pressure, which leads to a large amount of ener...
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Login to View More IPC IPC(8): B01J27/045C07C45/38C07C47/54
CPCB01J27/045B01J37/0009C07C45/38B01J35/394B01J35/23B01J35/39C07C47/54
Inventor 李士阔褚先强张惠黄方志
Owner ANHUI UNIVERSITY