Graphitized mesoporous carbon-TiO2 composite photocatalytic material as well as preparation method and application thereof

A technology of composite photocatalysis and photocatalytic materials, which is applied in the field of nanocomposite materials, can solve the problems of complex carbon fiber pretreatment process and unclear antibiotic wastewater treatment effect, and achieve efficient removal, improved photocatalytic performance, and good electrical conductivity. Effect

Active Publication Date: 2018-10-16
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this preparation process, the carbon fiber pretreatment process is complicated, and the material

Method used

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  • Graphitized mesoporous carbon-TiO2 composite photocatalytic material as well as preparation method and application thereof
  • Graphitized mesoporous carbon-TiO2 composite photocatalytic material as well as preparation method and application thereof
  • Graphitized mesoporous carbon-TiO2 composite photocatalytic material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A GMC-TiO 2 The preparation method of composite photocatalytic material comprises steps as follows:

[0047] (1) Dissolve F127 in water and absolute ethanol with a volume ratio of 1:1 at room temperature and constant stirring, and control its mass concentration to 0.06%. After the reagent is completely dissolved, add resorcinol in sequence , concentrated HCl and formaldehyde solution, control the molar ratio of resorcinol and formaldehyde to be 1:2, and the pH of the solution is 1.5 to obtain solution A; the mass ratio of F127 to quinone is 1:1;

[0048] (2) Under the condition of room temperature and continuous stirring, put the titanium trichloride solution (containing 3wt% hydrochloric acid) with a concentration of 0.5mol / L in water, control its volume ratio to 1:1, stir for a period of time and then Join NaNO 3 , Na 2 SO 4 , respectively controlling the volume ratio of its quality to the aqueous solution of titanium trichloride to be 1:80g / mL and 1:60g / mL, and c...

Embodiment 2

[0054] A GMC-TiO 2 The preparation method of composite photocatalytic material comprises steps as follows:

[0055] (1) Dissolve F127 in water and absolute ethanol with a volume ratio of 1:2 at room temperature and constant stirring, and control its mass concentration to 0.08%. After the reagent is completely dissolved, add resorcinol in sequence , concentrated HCl and formaldehyde solution, control the molar ratio of resorcinol and formaldehyde to be 1:3, and the pH of the solution is 1.0 to obtain solution A; the mass ratio of F127 to quinone is 2:1;

[0056] (2) Under the condition of room temperature and continuous stirring, put the titanium trichloride solution (containing 3wt% hydrochloric acid) with a concentration of 0.1mol / L in water, control its volume ratio to 1:2, and then stir for a period of time Join NaNO 3 , Na 2 SO 4 , respectively controlling the volume ratio of its quality to the aqueous solution of titanium trichloride to be 1:70g / mL and 1:50g / mL, and c...

Embodiment 3

[0061] A GMC-TiO 2 The preparation method of composite photocatalytic material comprises steps as follows:

[0062] (1) Dissolve F127 in water and absolute ethanol with a volume ratio of 1:4 at room temperature and under constant stirring, and control its mass concentration to 0.1%. After the reagent is completely dissolved, add resorcinol in sequence , concentrated HCl and formaldehyde solution, the control resorcinol and formaldehyde molar ratio is 1:5, the pH of solution is 3.0, obtains solution A; The mass ratio of F127 and hydroquinone is 1.5:1;

[0063] (2) Under the condition of room temperature and constant stirring, put the titanium trichloride solution (containing 3wt% hydrochloric acid) with a concentration of 1.5mol / L in water, control its volume ratio to 1:4, stir for a period of time and then sequentially Join NaNO 3 , Na 2 SO 4 , respectively controlling the volume ratio of its quality to the aqueous solution of titanium trichloride to be 1:90g / mL and 1:70g / ...

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Abstract

The invention relates to a graphitized mesoporous carbon-TiO2 composite photocatalytic material as well as a preparation method and application thereof. The graphitized mesoporous carbon-TiO2 composite photocatalytic material is prepared by taking resorcinol-formaldehyde as a carbon source and titanium trichloride as a titanium source through simple hydrothermal and calcining treatment under an acidic condition. The photocatalytic material comprises uniformly dispersed TiO2 nanoparticles and laminated graphitized mesoporous carbon, and shows up efficient adsorption-photocatalytic synergistic effect in the aspect of antibiotic degradation. The preparation method is simple in process and low in cost; furthermore, the prepared composite photocatalytic material is environmentally friendly andhas wide application prospect in the field of water treatment.

Description

technical field [0001] The invention relates to a graphitized mesoporous carbon (GMC)-TiO 2 A composite photocatalytic material and its preparation method and application belong to the field of nanocomposite materials. Background technique [0002] In recent years, due to the mass production and unreasonable application of antibiotics, their pollution to the environment has become increasingly serious. TiO 2 As an environmentally friendly technology, photocatalysis can quickly and effectively degrade trace organic pollutants in a mild environment without causing secondary pollution. It has been widely used in antibiotic wastewater treatment in recent years. However, due to the low concentration of antibiotics in the aqueous environment, the limited contact with the photocatalyst and the TiO 2 The recombination rate of photogenerated carriers is high. In addition, TiO 2 Due to the nanometer size level, agglomeration is prone to occur during preparation and use, which grea...

Claims

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Application Information

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IPC IPC(8): B01J21/06C02F1/32C02F101/38
CPCB01J21/063B01J35/004C02F1/32C02F2101/38C02F2305/10
Inventor 徐世平郑旭阳刘斌张启亮岳敏岳钦艳高宝玉
Owner SHANDONG UNIV
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