Check patentability & draft patents in minutes with Patsnap Eureka AI!

NH2-UiO-66/CdIn2S4 photocatalyst as well as preparation method and application thereof

A technology of nh2-uio-66 and photocatalyst, which is applied in the direction of catalyst activation/preparation, organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, etc. It can solve the problem of poor photoresponse ability and low photocatalysis Activity and other issues, to achieve the effect of highly efficient catalytic water splitting hydrogen production

Pending Publication Date: 2022-04-29
LIAONING UNIVERSITY
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However like many semiconductor materials, NH 2 -UiO-66 (NU66) has poor photoresponse ability, and photogenerated carriers are easy to recombine, so it shows low photocatalytic activity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • NH2-UiO-66/CdIn2S4 photocatalyst as well as preparation method and application thereof
  • NH2-UiO-66/CdIn2S4 photocatalyst as well as preparation method and application thereof
  • NH2-UiO-66/CdIn2S4 photocatalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) NH 2 -The preparation method of UiO-66 (NU66) crystal is as follows:

[0020] 20.4mg zirconium tetrachloride (ZrCl 4 ) and 14.5mg 2-aminoterephthalic acid (C 8 h 7 NO 4 ) was dissolved in a glass vial filled with 10mL of DMF (N,N-dimethylformamide) solution, and ultrasonicated for 20min. Then, 1.2 mL of acetic acid (CH 3 COOH), sealed, and stood at 120°C for 12h. The product was separated by centrifugation, and then washed with DMF (N,N-dimethylformamide) and methanol (CH 3 OH) was washed repeatedly, and finally vacuum-dried at 80°C for 12 hours to obtain NH 2 - UiO-66 crystals.

[0021] (2) CdIn 2 S 4 (CIS) is prepared as follows:

[0022] 114.16mg 2.5 hydrated cadmium chloride (CdCl 2 2.5H 2 O), 293.17mg indium chloride tetrahydrate (InCl 3 4H 2 O), 225.39mg of thioacetamide (TAA) was added into 30mL of deionized water, stirred for 30min, then the solution was transferred to a 50mL reactor, and reacted at 180°C for 48h. The product was separated by...

Embodiment 2

[0028] Example 2 NH 2 -UiO-66 / CdIn 2 S 4 Photocatalyst catalyzes water splitting to produce hydrogen

[0029] The method is as follows: the reaction is carried out in a quartz reactor, and a 300W xenon lamp is used as a light source to simulate sunlight. Catalyst NH 2 -UiO-66 / CdIn 2 S 4 (30mg) was ultrasonically dispersed in 100mL of 1.2M lactic acid aqueous solution, and then 400μL of 0.01mol·L -1 Chloroplatinic acid solution, high-purity nitrogen gas was passed into the reaction system for 30 minutes to remove oxygen, and then reacted under visible light (λ≥420nm) irradiation for 6h. During the reaction, the amount of hydrogen gas produced was detected every 30 minutes by gas chromatography. In the reference experiment, the CdIn 2 S 4 and NH 2 -UiO-66 instead of NH 2 -UiO-66 / CdIn 2 S 4 as a catalyst.

[0030] image 3 It is NH under visible light (λ≥420nm) 2 -UiO-66 / CdIn 2 S 4 Schematic diagram of photocatalyst-catalyzed water splitting for hydrogen product...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of catalytic hydrogen production, and particularly relates to an NH2-UiO-66 / CdIn2S4 photocatalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving NH2-UiO-66 crystals in deionized water, then respectively adding 2.5 cadmium chloride hydrate, indium chloride tetrahydrate and thioacetamide, carrying out hydrothermal reaction, centrifuging, washing the solid, and carrying out vacuum drying to obtain a target product. The preparation method comprises the following steps: firstly, preparing an NH2-UiO-66 crystal by a solvothermal method, then adding the NH2-UiO-66 in the synthesis process of CdIn2S4, and forming a heterojunction between the NH2-UiO-66 and the CdIn2S4 by a hydrothermal method, thereby obtaining the photocatalyst NH2-UiO-66 / CdIn2S4 with high stability and high activity. The catalyst can efficiently catalyze water decomposition to produce hydrogen under visible light.

Description

technical field [0001] The invention belongs to the technical field of catalytic hydrogen production, in particular to a kind of NH 2 -UiO-66 / CdIn 2 S 4 Photocatalyst and its preparation method and application. Background technique [0002] With the development of industrialization, the excessive use of fossil fuels has caused serious problems such as environmental pollution and energy shortages, which has brought great harm to human society. Therefore, the development of clean energy is of great significance for saving energy and protecting the environment. Semiconductor photocatalytic splitting of water to produce hydrogen is one of the most promising ways to harness solar energy for hydrogen energy. Due to the advantages of good crystallinity, high porosity, large specific surface area and adjustable structure, MOFs materials are usually used in photocatalysis. Among them, NH 2 -UiO-66 (NU66) has aroused great interest due to its special thermal properties and better...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J27/04B01J37/10B01J37/08C01B3/04
CPCB01J31/1691B01J31/2217B01J27/04B01J37/10B01J37/08C01B3/042B01J2531/48B01J35/39
Inventor 马天翼胡海均孙晓东张宇黄子航孙颖赵钦刘畅
Owner LIAONING UNIVERSITY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com