Bifunctional adsorbent of N-TiO2 silkworm-excrement porous carbon and preparation method of bifunctional adsorbent

Abstract

The invention discloses a bifunctional adsorbent of N-TiO2 silkworm-excrement porous carbon and a preparation method of the bifunctional adsorbent of the N-TiO2 silkworm-excrement porous carbon. The preparation method comprises the following steps: (1) firstly mixing and putting silkworm excrement and ZnCl2 in a high-temperature tube furnace, introducing a protective gas to purge, then heating to 300 to 700 DEG C to obtain silkworm-excrement porous carbon (SPC) through reaction; (2) adding butyl titanate to a selective alcohol solvent, drop by drop adding to an aqueous suspension containing the silkworm-excrement porous carbon, enabling the butyl titanate hydrolyzed to generate amorphous TiO2, thus obtaining an A-TiO2/silkworm-excrement porous carbon material; (3) carrying out surface modification on the material through a plasma radiation way to obtain an N doped A-TiO2 silkworm-excrement porous carbon material; (4) calcining the material at the temperature of 180 to 500 DEG C, finally obtaining an N-TiO2/SPC bifunctional adsorption material. The bifunctional adsorption material disclosed by the invention is applied to synchronous adsorption and catalytic degradation of VOCs of aldehydes and benzene series.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes how different types of substances called Porite are found naturally occurring throughout nature. They have many beneficial properties such as being able to absorb various gases like oxygen gas from air pollution. By adding certain elements onto these particles they create special structures with improved activity compared to regular ones. Additionally, there may exist other useful chemical compounds added during manufacture without affecting their original function. Overall, this new type of matter helps improve our ability to remove harmful organics effectively while reducing costs associated with traditional methods.

Problems solved by technology

This patented technical solution describes how porous carbon particles lose their ability to absorb moisture when exposed to certain environments like indoor air pollution caused by volatile organics from various sources including paintings, furniture polishing products, paints, coatings, cleaners, cosmetic compositions containing these compounds, alcohols, solvents, oils, greases, glycols, polyethyleneimines, plasticizers, lubricants, surfactants, detergents, pesticides, herbicide residues, ammonia gas emissions, mold spores, bacterial growth, fungi growing inside buildings during winter months, among other things. These factors make it challenges to maintain effective removal of harmful substances while also reducing the amount of available space needed per unit volume.

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