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

A bamboo charcoal and modification technology, which is applied in the field of modified bamboo charcoal products and its preparation, can solve the problems of no light source, blockage of bamboo charcoal channels, affect photocatalysis and antibacterial effects, etc., and achieve the effect of high negative ion concentration

Inactive Publication Date: 2007-09-26
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

Method used

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

Examples

Experimental program
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Effect test

Example Embodiment

[0030] Example 1

[0031] As shown in Figure 1, the raw materials of modified bamboo charcoal are prepared by grading and screening bamboo charcoal materials, adding deionized water, soaking, stirring, air-drying or low-temperature drying to obtain pre-treated bamboo charcoal raw materials. The specific surface area of ​​the pretreated bamboo charcoal raw material is 100~250m 2 / g.

Example Embodiment

[0032] Example 2

[0033] An Ag / N co-doped TiO containing a pore former as shown in Figure 2 2 The preparation method of nano-sol, the raw material conditions: butyl titanate, absolute ethanol, hydrochloric acid and deionized water as the main raw materials, hexamethylenetetramine as the nitrogen source, the molar ratio of N to Ti is 0.5%; nitric acid; Silver is complexed with citric acid to introduce silver ions, Ag + The molar ratio with Ti is 0.1%, and polyethylene glycol is 3% by weight of the sol.

[0034] At room temperature, slowly drop a certain amount of butyl titanate into absolute ethanol and stir vigorously for 30 minutes to obtain a uniform bright yellow clear solution; then add a certain proportion of deionized water, absolute ethanol, hydrochloric acid, Hexamethylenetetramine, citric acid complexed silver nitrate, and polyethylene glycol constitute a mixed liquid, slowly drip into the above clear solution, control the pH of the solution to about 2, and stir vigorous...

Example Embodiment

[0036] Example 3

[0037] A kind of Ag / N co-doped TiO containing pore former 2The preparation method of nano sol, the raw material conditions: butyl titanate, absolute ethanol, hydrochloric acid and deionized water as the main raw materials, hexamethylenetetramine as the nitrogen source, the molar ratio of N to Ti is 1.0%; nitric acid; Silver is complexed with citric acid to introduce silver ions, Ag + The molar ratio with Ti is 0.3%, and polyethylene glycol is 3.5% by weight of the sol.

[0038] At room temperature, slowly drop a certain amount of butyl titanate into absolute ethanol and stir vigorously for 30 minutes to obtain a uniform bright yellow clear solution; then add a certain proportion of deionized water, absolute ethanol, hydrochloric acid, Hexamethylenetetramine, citric acid complexed silver nitrate, and polyethylene glycol constitute a mixed liquid, slowly drip into the above clear solution, control the pH value of the solution to about 2, and stir vigorously for 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 invention relates to a modified bamboo charcoal product and a preparation method thereof. Specifically, it is an Ag-rich porous TiO with high specific surface area, excellent photocatalytic and antibacterial properties. 2 Bamboo charcoal product and its preparation method. 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 the functions of adsorption, conduction, far infrared, and release of negative ions. It is a kind of biological collection. New materials combining organic and inorganic materials are 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 applications: 1) The specific surface ar...

Claims

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Application Information

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IPC IPC(8): B01J23/50B01J21/06A61L2/23
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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