Novel cadmium-removal filter tip

Abstract

The invention relates to a novel cadmium-removal cigarette filter tip and a preparation method thereof, and belongs to the field of biotechnology application. In the invention, carboxymethyl chitosan is utilized as an adsorbent to be evenly added to the cigarette filter tip so as to reduce content of heavy metal-cadmium in smoke without affecting the original quality of a cigarette; and meanwhile the cadmium-removal cigarette filter tip also has absorption effect on toxic and harmful substances such as nicotine, a hydroxide, a sulfide, a cyclic hydrocarbon compound and the like in the smoke, thus being beneficial to improving cigarette quality and ensuring consumer health.

Description

New decadmium filter technical field The invention relates to a novel cadmium-removed cigarette filter tip and a preparation method thereof. Background technique As we all know, harmful substances in tobacco leaves include pesticides, nitrates, heavy metals, tars, and radioactive substances, which are extremely harmful to the human body. Studies have shown that chemical pesticides can be controlled by biopesticide substitution and environmental regulation technologies, nitrate can be limited by balanced fertilization and changing cultivation conditions, and tar can be limited by tobacco leaf curing. However, heavy metal cadmium is a pollutant that is difficult to control, and once it pollutes the environment, it is not easy to remove from the environment. is very harmful. According to reports, there are about 1.1 billion smokers in the world, and China is a country with 500 million smokers. How to reduce the harm of heavy metal cadmium in cigarettes to human body needs ...

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Problems solved by technology

However, chitosan is suitable for a narrow pH range and can only be dissolved in weakly acidic solutions. Ho

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