Aminated nano ferroferric oxide loading metal phthalocyanine photocatalyst, preparation method and application

A kind of ferric tetroxide and aminated nanotechnology, which can be used in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., which can solve the cumbersome separation process and unfavorable industrial wastewater treatment. , low specific surface area and other problems, to achieve the effect of simple preparation method, superior photocatalytic activity and stability, and environmental friendliness

Inactive Publication Date: 2019-06-28
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned carrier-supported catalyst needs to be separated from the water phase by means of centrifugation or filtration during use, and the separation process is relatively cumbersome.
[0003] Xing Rong et al. combined water-soluble sulfonic acid metal phthalocyanine with amine-functionalized ordered mesoporous organic polymers to prepare FDU-PdPcS (Chinese invention patent application, application number: 201210589284.3), which improved the performance of silicon-based mesoporous materials. It is suitable for alkaline conditions and the specific surface area of ​​other carriers is low, and achieves the effective removal of organic pollutants. However, the recovery of this material still requires the use of centrifugation or filtration, which is not conducive to large-scale industrial wastewater treatment.

Method used

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  • Aminated nano ferroferric oxide loading metal phthalocyanine photocatalyst, preparation method and application
  • Aminated nano ferroferric oxide loading metal phthalocyanine photocatalyst, preparation method and application
  • Aminated nano ferroferric oxide loading metal phthalocyanine photocatalyst, preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A) Weigh 4.0g FeCl 3 ·6H 2 O, 12.00g of anhydrous sodium acetate, dissolve the two in 120mL of ethylene glycol, stir at room temperature for 20min, then add 20mL of ethylenediamine, and stir until a stable orange solution is formed. The reaction solution was transferred to a reaction kettle and reacted at 180°C for 8h. After cooling, it was magnetically separated and washed several times with deionized water and ethanol until neutral. The washed sample was dried in a vacuum oven at 60°C for 12 hours to obtain the aminated nanometer ferric oxide (NH 2 -Fe 3 o 4 ).

[0041] B) take by weighing the NH that step A makes 2 -Fe 3 o 4 Add 0.200 g to the sulfonated aluminum phthalocyanine aqueous solution with a concentration of 80 mg / L, adjust the pH to 3.0, shake at room temperature for 12 hours, wash with deionized water after magnetic separation, and place the sample after magnetic separation at 60 ℃ in a vacuum drying oven for 12 h to obtain the amino-functional ...

Embodiment 2

[0047] Except for the following differences in the implementation process, all the other operations are the same as in Example 1. The amount of ethylenediamine used in step A becomes 5-60 mL. Preparation of AlPcS@NH with different amino groups content 2 -Fe 3 O, and investigate their photocatalytic activity.

Embodiment 3

[0049] Except for the following differences in the implementation process, all the other operations are the same as in Example 1. In step A, ethylenediamine is replaced with one of diethylenetriamine, triethylenetetramine or tetraethylenepentamine. Preparation of AlPcS@NH with different amino types 2 -Fe 3 o 4 , and investigate their photocatalytic activity.

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Abstract

The invention discloses an aminated nano ferroferric oxide loading metal phthalocyanine photocatalyst, a preparation method and an application. The preparation method comprises the following steps: directly impregnating aminated nano ferroferric oxide in a 5-100 mg / L metal phthalocyanine aqueous solution; vibrating the solution at room temperature for 3-24 hours; loading the metal phthalocyanine to the surface of aminated nano ferroferric oxide by means of electrostatic interaction; and carrying out magnetic separation, washing and drying to prepare the aminated nano ferroferric oxide loadingmetal phthalocyanine photocatalyst. The metal phthalocyanine in the catalyst accounts for 0.1-5.0% by mass. The compound photocatalyst has double functions of photocatalytic degradation and magnetic separation and recycling, and can achieve oxydative degradation of organic pollutants in a water body by means of dissolved oxygen in visible light activated water. The aminated nano ferroferric oxideloading metal phthalocyanine photocatalyst prepared according to the invention is simple in method, low in cost and environment-friendly, and has the advantages of being small in particles, easy to disperse, mild in reaction condition, high in photocatalytic activity, easy to separate magnetically and capable of being recycled.

Description

technical field [0001] The invention relates to an aminated nano-ferric oxide-supported metal phthalocyanine photocatalyst, a preparation method and an application thereof, more specifically, an aminated nano-ferric oxide-supported metal phthalocyanine photocatalyst and its preparation, suitable for phenol Degradation of class and dye pollutants. Background technique [0002] Metal phthalocyanines have strong absorption in the visible light region, and have been widely used as photosensitizers or photocatalysts in the degradation of environmental pollutants (Materials Bulletin A: Review, 29(2015), 57). However, general phthalocyanine compounds have poor solubility in aqueous solution, resulting in poor catalytic activity; while water-soluble phthalocyanines containing functional groups have high catalytic activity, but the existence of phthalocyanine molecules in the homogeneous catalytic reaction system is easy Aggregation reduces the catalytic activity, and it is difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/28B01J31/22C02F1/30C02F101/34C02F101/30
Inventor 胡美琴沈昊宇郭冬菁胡文娟
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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