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Modification bamboo charcoal having Ag and porous TiO2 and the preparing method

A bamboo charcoal and modified technology, applied in the field of modified bamboo charcoal products and their preparation, can solve the problems of no light source, agglomeration, affecting the photocatalytic performance of bamboo charcoal, etc., and achieve the effect of high negative ion concentration

Inactive Publication Date: 2010-08-04
ZHEJIANG GREEN ROCK ENVIRONMENTAL PROTECTION MATERIAL SHARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although nano-TiO 2 Modified bamboo charcoal has photocatalytic properties and good application prospects, but there are many unavoidable problems in practical applications: 1) Insufficient or no light source in many applications of bamboo charcoal will also affect the nano-TiO 2 photocatalytic and antibacterial effects; 2) nano-TiO 2 Powder in bamboo charcoal may also be agglomerated due to surface effects, blocking the pores of bamboo charcoal, thereby affecting the adsorption of bamboo charcoal and the absorption of TiO2. 2 photocatalytic performance

Method used

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  • Modification bamboo charcoal having Ag and porous TiO2 and the preparing method
  • Modification bamboo charcoal having Ag and porous TiO2 and the preparing method
  • Modification bamboo charcoal having Ag and porous TiO2 and the preparing method

Examples

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Effect test

Embodiment 1

[0031] Such as figure 1 Shown, the preparation of the raw material of modified bamboo charcoal, the raw material of bamboo charcoal is graded and screened, add deionized water to soak, stir, dry or dry at low temperature to obtain the pretreated bamboo charcoal raw material. The specific surface area of ​​the pretreated bamboo charcoal raw material is 100-250m 2 / g.

Embodiment 2

[0033] Such as figure 2 A TiO co-doped with pore-forming agent Ag / N is shown 2 The preparation method of nano-sol, its raw material conditions: take butyl titanate, dehydrated alcohol, hydrochloric acid and deionized water as main raw materials, hexamethylenetetramine is nitrogen source, and the molar ratio of N and Ti is 0.5%; Nitric acid Silver was complexed with citric acid to introduce silver ions, Ag + The molar ratio with Ti is 0.1%, polyethylene glycol is 3% by weight of the sol.

[0034] At room temperature, a certain amount of butyl titanate was slowly dropped into absolute ethanol, and after vigorous stirring for 30 minutes, a uniform bright yellow clear solution was obtained; then a certain proportion of deionized water, absolute ethanol, hydrochloric acid, Hexamethylenetetramine, citric acid complexed with silver nitrate, and polyethylene glycol form a mixed solution, which is slowly added dropwise to the above-mentioned clear solution, and the pH value of the s...

Embodiment 3

[0037] A Co-doped TiO Containing Porogen Ag / N 2 The preparation method of nano-sol, its raw material conditions: take butyl titanate, dehydrated alcohol, hydrochloric acid and deionized water as main raw materials, hexamethylenetetramine is nitrogen source, and the molar ratio of N and Ti is 1.0%; Nitric acid Silver was complexed with citric acid to introduce silver ions, Ag +The molar ratio with Ti is 0.3%, polyethylene glycol is 3.5% by weight of the sol.

[0038] At room temperature, a certain amount of butyl titanate was slowly dropped into absolute ethanol, and after vigorous stirring for 30 minutes, a uniform bright yellow clear solution was obtained; then a certain proportion of deionized water, absolute ethanol, hydrochloric acid, Hexamethylenetetramine, citric acid complexed with silver nitrate, and polyethylene glycol form a mixed solution, which is slowly added dropwise to the above-mentioned clear solution, and the pH value of the solution is controlled at about 2...

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Abstract

The invention relates to a modified bamboo-carbon product and the manufacturing method. In detail, it is the porous TiO2 bamboo-carbon product with Ag on the surface and high specific surface area, notable photocatalysis and antibacterial performances and the manufacturing method. The porous TiO2 modified bamboo-carbon with Ag on the surface comprises pretreated bamboo-carbon material and TiO2 nanometer sol doped pore-making agent Ag / N filled in bamboo-carbon duct or vascular bundle. The TiO2 nanometer sol doped pore-making agent Ag / N comprises TiO2 sol particle, pore-making agent, nitrogen doped component and Ag+. No only the invention changes the distribution of pore channels but also pore channels can not be jammed. So it can improve bamboo-carbon specific surface area in effect and increases absorption and the concentration of anion. At the same time, when there is no light source, the abundant Ag on the surface is made use of so that the bamboo-carbon is provided with permanent antibacterial performance. The invention provides important bamboo-carbon material with high quality for develop the bamboo-carbon application area.

Description

technical field [0001] The present invention relates to a kind of modified bamboo charcoal product and preparation method thereof, specifically, it is a surface Ag-rich porous TiO with high specific surface area, photocatalytic and antibacterial properties. 2 Bamboo charcoal products and preparation methods thereof. Background technique [0002] Bamboo charcoal is a natural carbon material fired from bamboo under high temperature and low oxygen conditions. It has a rich porous structure and a high specific surface area, and has functions such as adsorption, conductivity, far infrared, and negative ions. A new material integrating organic materials and inorganic materials has been widely used in agriculture, forestry, construction, health care, environmental protection and other fields. Although bamboo charcoal materials have many advantages, there are still the following problems to be solved in practical application: 1) the specific surface of bamboo charcoal is relatively...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/06A61L2/23B01J23/50
Inventor 涂志龙郭兴忠刘子阳戴嘉璐
Owner ZHEJIANG GREEN ROCK ENVIRONMENTAL PROTECTION MATERIAL SHARE
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