Method for preparing ion imprinting supported composite photocatalyst

A technology of ion imprinting and photocatalysis, which is applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., can solve problems such as drug resistance and life-threatening threats. Achieve the effects of improving light energy utilization rate and recovery rate, easy treatment, and improving separation efficiency

Inactive Publication Date: 2011-02-02
ZHENJIANG GAOPENG PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its drug resistance and its side effects also seriously affect people's lives, and long-term low-level accumulation is prone to drug resistance; studies have shown that ciprofloxacin has serious liver and kidney toxicity, which directly threatens people's lives and health

Method used

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  • Method for preparing ion imprinting supported composite photocatalyst
  • Method for preparing ion imprinting supported composite photocatalyst
  • Method for preparing ion imprinting supported composite photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: (1) Purchase fly ash floating beads (Pingdingshan Yaomeng Power Plant), and obtain activated floating beads through rinsing, acidification, roasting, etc.; 45mL of tetrabutyl titanate and ethanol in a volume ratio of 1: 4 Mix and stir the solution at a constant speed for 30 minutes, then dropwise add 45 mL of a mixture containing concentrated hydrochloric acid, distilled water and absolute ethanol at a volume ratio of 1:15:200, and stir quickly until it is in the form of a sol, that is, the prepared TiO 2 Sol; immerse 3.0g of pretreated activated floating beads into TiO 2 In the sol, stir at a constant speed until it becomes uniform to gel, age at room temperature for 12 hours, calcine in air atmosphere, raise the temperature to 500 ° C, and keep it for more than 4 hours, and naturally cool to room temperature to obtain TiO 2 / floating bead-supported photocatalyst.

[0017] (2) 1.0g TiO obtained in the above step (1) 2 / floating bead loaded photocatalyst ...

Embodiment 2

[0019] Embodiment 2: carry out by the same step of embodiment 1 preparation process, difference is to get three groups (Co(NO 3 ) 2 , Fe(NO 3 ) 2 , Pb(NO 3 ) 2 ) different transition metal salt solutions to prepare different imprinted catalysts, investigate the impact of different transition metal ions on the activity of imprinted photocatalysts, and investigate the activity of photodegradation of ciprofloxacin antibiotic wastewater according to (3) steps in Example 1. The results showed that the order of photodegradation activity of the prepared transition metal ion imprinted photocatalyst was Fe(NO 3 ) 2 >Co(NO 3 ) 2 >Pb(NO 3 ) 2 .

Embodiment 3

[0020] Embodiment 3: carry out by the same step of embodiment 1 preparation process, difference is to get three groups (FeCl 2 , Fe(NO 3 ) 2 , Fe(SO 4 ) 2 ) different anion iron salt solutions to prepare different imprinted catalysts, investigate the influence of different anions on the activity of imprinted photocatalysts, and investigate the activity of photodegradation of ciprofloxacin antibiotic wastewater according to (3) step in Example 1. The results show that the prepared FeCl 2 Imprinted photocatalysts work best.

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Abstract

The invention discloses a method for preparing an ion imprinting supported composite photocatalyst, which belongs to the technical field of environmental material preparation and comprises the following steps of: pre-treating hollow microspheres to obtain activated hollow microspheres; mixing tetrabutyl titanate and ethanol according to a proportion, performing accelerated stirring on the mixture to fully and uniformly disperse the mixture, and slowly adding dropwise the mixed solution of a concentrated hydrochloric acid, distilled water and absolute ethyl alcohol in a certain proportion to obtain TiO2 sol; impregnating the hollow microspheres into the TiO2 sol, and uniformly stirring the sol to a gel state at constant speed to obtain a TiO2/hollow microsphere-supported photocatalyst; and performing ultrasonic dispersion on the prepared TiO2/hollow microsphere-supported photocatalyst and the mixed solution of solution of o-phenylenediamine and Fe<n+> solution of certain acidity, and preparing the ion imprinting supported composite photocatalyst under ultraviolet-initiated polymerization. The supported catalyst of the invention is beneficial for improving the solar energy utilization rate and recovery rate of the catalyst, and has the advantage of relatively better treating antibiotic wastewater.

Description

technical field [0001] The invention relates to a method for preparing ion-imprinted loaded Fe by using sol-gel-photoinitiated polymerization imprinting method n+ @P-OPD / TiO 2 The invention discloses a method for composite photocatalyst with floating beads, which belongs to the technical field of environmental material preparation. Background technique [0002] Ciprofloxacin belongs to fluoroquinolones, which has strong antibacterial ability and broad-spectrum bactericidal characteristics, and is widely used in aquaculture. However, its drug resistance and its side effects also seriously affect people's lives, and long-term low-level accumulation is prone to drug resistance; studies have shown that ciprofloxacin has serious liver and kidney toxicity, which directly threatens people's lives and health. Therefore, the rational treatment of antibiotic and medical wastewater in domestic wastewater is an important link. At present, photocatalytic technology has been widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F101/34C02F1/30B01J31/38C02F101/38C02F101/36B01J31/28
Inventor 闫永胜霍鹏伟李松田陈松涛李华明吴向阳逯子扬曹苏苏
Owner ZHENJIANG GAOPENG PHARMA
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