Photocatalyst composite long-acting disinfectant and preparation method thereof

Abstract

The invention discloses a photocatalyst composite long-acting disinfectant and a preparation method thereof. The disinfectant is prepared from the following raw materials in percentage by mass: 0.5 to1 percent of polyhexamethylene guanidine, 0.1 to 0.3 percent of nano titanium dioxide photocatalyst, 1 to 3 percent of citric acid, 0.1 to 2 percent of stabilizer and 93.7 to 98.3 percent of deionized water. According to the invention, the photocatalyst composite long-acting disinfectant is prepared by utilizing the advantage of complementary characteristics of polyhexamethylene guanidine and thenano titanium dioxide photocatalyst; hydrophilic groups formed by ionizing polyhexamethylene guanidine in the component raw materials in an aqueous solution can adsorb bacteria and viruses and entercell membranes to inhibit synthesis of liposomes in membranes to cause thallus apoptosis, so that the sterilization and disinfection effects are achieved; the nano titanium dioxide type photocatalystis a photocatalytic reaction and a non-chemical reaction in the whole process, substances of the nano titanium dioxide type photocatalyst cannot be lost, and the nano titanium dioxide type photocatalyst can act for a long time; and under the irradiation of visible light, the photocatalyst composite long-acting disinfectant disclosed by the invention can generate a substance similar to a product ofa photocatalytic reaction of photosynthesis, so that not only is a good sterilization effect reserved, but also the disinfection action time is obviously prolonged.

Description

technical field [0001] The invention belongs to the technical field of disinfectants, and relates to a photocatalyst composite long-acting disinfectant and a preparation method thereof. Background technique [0002] Disinfectants refer to preparations used to kill pathogenic microorganisms (bacterial propagules, mycobacteria, viruses, fungi and their spores, etc.) Outside the human body, it can cut off the transmission route of infectious diseases and achieve the purpose of controlling infectious diseases. According to different components, the existing chemical disinfectants are mainly divided into two categories: inorganic disinfectants and organic disinfectants. These disinfectants are widely used in daily production and life, and have made great contributions to human life safety and health. Significant contribution, however, as people's understanding of disinfectants continues to deepen, the shortcomings of existing disinfectants have become increasingly prominent. ...

AI Technical Summary

Problems solved by technology

According to different components, the existing chemical disinfectants are mainly divided into two categories: inorganic disinfectants and organic disinfectants. These disinfectants are widely used in daily production and life, and have made great contributions to human life safety and health. Significant contribution, however, as people's understanding of disinfectants continues to deepen, the shortcomings of existing disinfectants have become increasingly prominent

[0003] Among the existing chemical disinfectants, inorganic disinfectants have the characteristics of high-efficiency sterilization, fast onset of action, no residue, and little environmental pollution. However, most inorganic disinfectants need to be prepared and used immediately, with short storage time and short disinfection effective time. Therefore, it is impossible to form an effective antibacterial protective layer on the surface of the object. At the same time, most of the inorganic disinfectants have a pungent odor and have a certain corrosive effect on the object to be disinfected.

Organic disinfectants are mainly alcohol, chlorine, phenols, aldehydes, etc. These disinfectants are often characterized by strong irritation, high oxidation, and high corrosion. Improper use or storage will bring great safety risks; Moreover, some products such as phenolic disinfectants are highly irritating to the human body, and long-term exposure is likely to cause cancer, and the use safety is low

[0004] So far, guanidine components are rarely used in the preparation of disinfectant products, mainly due to their weak disinfection efficacy and poor sterilization effect, which only have a certain killing effect on fungi and viruses

It is precisely because of the short effective time of disinfection of common chemical disinfectants and the potential risks caused by the ingredients of disinfectants to the human body and the environment, so there is an urgent need to propose a long-acting, environmentally friendly antibacterial and disinfectant disinfectant

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