Iron-doped titanium oxygen cluster material as well as synthesis method and application thereof

A synthesis method and technology of titanium oxide clusters, applied in the field of crystal material preparation, can solve the problems of limited practical application, wide energy bandgap, weak visible light absorption, etc., and achieve the effects of narrow energy bandgap, good crystallinity and high yield

Active Publication Date: 2020-11-06
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high reactivity and easy hydrolysis of titanium sources, compared with other metal oxygen clusters, there are few reports on titanyl clusters. Even the reported titanium oxide cluster compounds have weak visible light absorption and low energy band gap wide and other issues, which seriously limit its practical application in photocatalysis

Method used

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  • Iron-doped titanium oxygen cluster material as well as synthesis method and application thereof
  • Iron-doped titanium oxygen cluster material as well as synthesis method and application thereof
  • Iron-doped titanium oxygen cluster material as well as synthesis method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of synthesis method of iron-doped titanium oxygen cluster material, adopts following steps:

[0027] Add 200µL of isopropyl titanate, 30mg of iron acetylacetonate, 100mg of benzoic acid ligand and 6mL of acetonitrile solvent into the reaction kettle, stir at room temperature for 0.5h; react at 100°C for 72h, and cool down to At 25°C, orange-red massive crystals precipitated in the system; the obtained crystals were separated, washed three times with acetonitrile solvent, and dried naturally to obtain the iron-doped titanyl oxide cluster material, with a yield of 83% based on the amount of isopropyl titanate.

Embodiment 2

[0029] A kind of synthesis method of iron-doped titanium oxygen cluster material, adopts following steps:

[0030] Add 100µL of isopropyl titanate, 40mg of iron acetylacetonate, 100mg of benzoic acid ligand and 3mL of acetonitrile solvent into the reaction kettle, stir at room temperature for 0.8h; react at 100°C for 96h, and cool down to At 25°C, orange-red massive crystals precipitated in the system; the obtained crystals were separated, washed three times with acetonitrile solvent, and dried naturally to obtain the iron-doped titanyl oxide cluster material, with a yield of 87% based on the amount of isopropyl titanate.

Embodiment 3

[0032] A kind of synthesis method of iron-doped titanium oxygen cluster material, adopts following steps:

[0033] Add 150 µL of isopropyl titanate, 50 mg of iron acetylacetonate, 100 mg of benzoic acid ligand and 5 ml of acetonitrile solvent into the reaction kettle, stir at room temperature for 1 h; °C, orange-red massive crystals precipitated in the system; the obtained crystals were separated, washed three times with acetonitrile solvent, and dried naturally to obtain the iron-doped titanyl oxide cluster material, with a yield of 85% based on the amount of isopropyl titanate.

[0034] The above-mentioned examples 1-3 synthesize iron-doped titanyl cluster materials, and the molecular formula of the iron-doped titanyl cluster materials is Ti 2 Fe 4 (µ 3 -O)(µ 2 -O)(OOCPh) 12 (C 5 h 8 o 2 )(CH 3 EN) 4 , OOCPh is benzoic acid, C 5 h 8 o 2 is acetylacetone, μ 3 -O stands for triple-connected O atom, μ 2 -O represents two linked O atoms.

[0035] The crystal struc...

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Abstract

The invention belongs to the technical field of preparation of crystal materials, and relates to an iron-doped titanium oxygen cluster material as well as a synthesis method and application thereof. The molecular formula of the iron-doped titanium oxygen cluster is Ti2Fe4 (mu3-O) (mu2-O) (OOCPh) 12 (C5H8O2) (CH3CN) 4, wherein OOCPh is benzoic acid, mu3-O represents a triplet O atom, and mu2-O represents a diplet O atom. The synthesis method comprises the following synthesis steps of: adding isopropyl titanate, ferric acetylacetonate, a benzoic acid ligand and an acetonitrile solvent into a reaction kettle; stirring the materials at room temperature for 1-2 hours; reacting at 100-120 DEG C for 72-120 hours; performing cooling; separating out crystals from the system; and performing separating, washing and drying to obtain the iron-doped titanium oxygen cluster. The iron-doped titanium oxygen cluster material prepared by the method has the advantages of narrow energy band gap, high stability, high catalytic activity and the like, and has a wide application prospect in the aspects of photodegradation of organic pollutants and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of crystal materials, and in particular relates to an iron-doped titanium oxide cluster material and its synthesis method and application. Background technique [0002] Energy crisis and environmental pollution are two serious challenges facing mankind at present, and it is imperative to develop clean and low-carbon new energy sources such as solar energy. Photocatalytic technology can directly convert solar energy into chemical energy. The core of this technology is the synthesis of stable and efficient photocatalysts. Nano titanium dioxide (TiO 2 ) material is considered as one of the most potential photocatalysts due to its low cost, high efficiency and environmental friendliness. However, nano-TiO materials also have many shortcomings that cannot be ignored, including unclear structural information, non-uniform particle size, unclear inorganic-organic interface information, and uncertain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38
CPCB01J31/38B01J35/004Y02W10/37
Inventor 王超
Owner QILU UNIV OF TECH
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