Three-dimensional flower-like In2S3/In2O3 composite microsphere photocatalytic material and preparation method thereof

A three-dimensional flower-like, catalytic material technology, applied in the field of environmental pollution control, achieves good application value and prospects, uniform distribution, and inhibition of recombination.

Inactive Publication Date: 2016-06-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Currently, In 2 S 3 Nanosheets Decorated Three-dimensional Flower-like In 2 o 3 There is no report, and the three-dimensional flower-like In 2 S 3 /In 2 o 3 Composite microsphere photocatalytic materia

Method used

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  • Three-dimensional flower-like In2S3/In2O3 composite microsphere photocatalytic material and preparation method thereof
  • Three-dimensional flower-like In2S3/In2O3 composite microsphere photocatalytic material and preparation method thereof
  • Three-dimensional flower-like In2S3/In2O3 composite microsphere photocatalytic material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Preparation of three-dimensional flower-like In by hydrothermal method 2 o 3

[0033] 0.7mmolInCl 3 ·xH 2 O and 2.1 mmol of sodium lauryl sulfate were dissolved in 42 mL of deionized water, then stirred until a transparent solution was obtained; 3.5 mmol of urea was added to the above solution, and continued to stir until dissolved; the above mixed solution was transferred to a polytetrafluoroethylene reactor 120°C for hydrothermal reaction for 16 h; after cooling to room temperature, wash and purify with ethanol and deionized water multiple times to remove unreacted reactants, and after centrifugation, collect the white precipitate (In(OH) 3 ), dried, and the resulting In(OH) 3 The powder was calcined at 550 °C for 2 h to obtain a three-dimensional flower-like In 2 o 3 .

Embodiment 2

[0035] According to the preparation method in Example 1, the hydrothermal reaction temperature is 160 ° C, the reaction is 8 hours, and other parameters remain unchanged, and the three-dimensional flower-shaped In 2 o 3 .

Embodiment 3

[0037] According to the preparation method in Example 1, the hydrothermal reaction temperature is 140°C, the reaction is 12h, and other parameters remain unchanged, and the three-dimensional flower-shaped In 2 o 3 .

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Abstract

The invention discloses a three-dimensional flower-shaped In 2 S 3 /In 2 o 3 A composite microsphere photocatalytic material and a preparation method thereof belong to the field of pollution control and technology. Using thioacetamide as the sulfur source, the In 2 o 3 The lattice oxygen in is replaced by sulfide ions, and in the flower-like In 2 o 3 In situ generation of In on the surface 2 S 3 nanosheets, forming a heterojunction structure; three-dimensional flower-like In 2 o 3 The shape is uniform, the particle size is 3.0–6.5μm, In 2 S 3 Nanosheets wrapped in In 2 o 3 The surface of micron flowers. The raw materials used in the invention are cheap and easy to obtain, the reaction conditions are easy to control, and the requirement for equipment is low, which is an environment-friendly preparation method. In 2 S 3 /In 2 o 3 Composite microspheres not only improve the In 2 o 3 The utilization rate of visible light and the suppression of the recombination of photogenerated carriers have good application value and prospects in the field of photocatalytic degradation of volatile organic pollutants.

Description

technical field [0001] The invention belongs to the field of environmental pollution control and relates to a new three-dimensional flower-shaped In 2 S 3 / In 2 o 3 The preparation method of composite microsphere photocatalytic material, specifically relates to a three-dimensional flower-like In 2 S 3 / In 2 o 3 Composite microsphere photocatalytic material. Background technique [0002] In recent years, the problem of municipal waste incineration has attracted widespread attention. In the process of municipal waste incineration, chlorine-containing volatile organic compounds (Cl–VOCs) will be produced. Among them, polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) belong to dioxin-like compounds and are listed as persistent organic pollutants (POPs) with high toxicity and environmental Persistence and carcinogenicity, so many countries have established strict emission standards for PCDD / Fs. The traditional method for the treatment of...

Claims

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Application Information

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IPC IPC(8): B01J27/04B01J35/00B01J35/08B01D53/70B01D53/86
CPCB01J27/04B01D53/8662B01D2258/0291B01J35/004B01J35/023B01J35/08
Inventor 李新勇张菲肇启东
Owner DALIAN UNIV OF TECH
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