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Method for preparing activated carbon fiber loaded photocatalytic material

A technology of activated carbon fibers and photocatalytic materials, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of high refrigeration power requirements and high cost, and achieve low cost, easy handling, and suppression of effect of respiration

Inactive Publication Date: 2018-08-14
SOUTH CHINA AGRI UNIV
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Problems solved by technology

The former raises the temperature to about 250°C and removes ethylene under the action of a catalyst, which has a relatively high cost and requires high refrigeration power

Method used

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with specific examples.

[0024] The method for the activated carbon fiber loaded photocatalytic material provided in this embodiment is based on self-made tungsten trioxide WO 3 , graphene oxide (GO) as raw material, tetrabutyl titanate as titanium source, acetic acid and polyethylene glycol as hydrolysis inhibitor and surfactant, polyvinylpyrrolidone (PVP) as linker, activated carbon fiber (ACF) For loading, silver ion-doped tungsten oxide / titania-reduced graphene oxide (Ag-WO 3 / TiO 2 / RGO) ternary composite photocatalytic coating; the specific process is as follows:

[0025] 1) Mix tetrabutyl titanate and absolute ethanol at a volume ratio of 1:4 to 1:6 to obtain solution A, and use an ultrasonic cleaner to ultrasonically oscillate for 5 to 10 minutes;

[0026] 2) take the silver nitrate powder of required quality with electronic balance, make the mass ratio of silver ion in A solution be betwee...

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Abstract

The invention discloses a method for preparing an activated carbon fiber loaded photocatalytic material. The method is characterized in that self-prepared tungsten trioxide WO3 and graphene oxide (GO)are taken as raw materials, tetrabutyl titanate is taken as a titanium source, acetic acid and polyethylene glycol are taken as hydrolysis inhibitor and surfactant, polyvinylpyrrolidone (PVP) is bridging agent, activated carbon fibers (ACF) are taken as a load, and a sol-gel method is adopted to prepare the ternary compound photocatalytic coating of silver ion-doped tungsten oxide / titanium dioxide-reduced graphene oxide (Ag-WO3 / TiO2 / RGO). The activated carbon fiber loaded photocatalytic material prepared with the method is characterized in that ethylene is decomposed into carbon dioxide and water under the irradiation of ultraviolet light so as to be favorable for inhibiting a fruit and vegetable respiration function.

Description

technical field [0001] The invention relates to the technical field of antibacterial and fresh-keeping in storage rooms, in particular to a method for loading photocatalytic materials on activated carbon fibers. Background technique [0002] my country is a big fruit and vegetable producing country in the world. Due to the backward storage, transportation and fresh-keeping technical conditions, a large number of fruit and vegetable products rot and deteriorate every year, causing huge waste. The main cause of rot and deterioration is the ethylene released by bananas during storage and their own pathogens. [0003] Ethylene is one of the important factors for the spoilage of fruits and vegetables after harvesting. In a closed fresh-keeping environment, ethylene can accelerate the respiration intensity of fruits and vegetables, enhance the metabolic activity of enzymes, accelerate the loss of cell membrane permeability and compartmentation, and promote the softening of fruits ...

Claims

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Application Information

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IPC IPC(8): B01J23/68A23B7/144
CPCA23B7/144B01J23/002B01J23/687B01J35/39
Inventor 杨洲季邦赵文锋马立哲杨培君黄权锋宋帅帅许泽宇刘伟
Owner SOUTH CHINA AGRI UNIV
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