The main application of bismuth sulfide Bi2S3

Overview of bismuth sulfide Bi2S3

Bismuth sulfide, chemical formula Bi2S3, molecular weight 514.15, brown powder or crystal. Specific gravity 7.39. Decomposes at 685℃. Insoluble in water and ethyl acetate, but soluble in nitric acid and hydrochloric acid. It is obtained by melting metallic bismuth and sulfur together or passing hydrogen sulfide into a bismuth salt solution. Used to prepare bismuth compounds. Bismuth sulfide is an important semiconductor material, and its application in optoelectronic components and thermoelectric devices has brought great convenience to mankind. Nano-bismuth sulfide makes its various properties more optimized. Because the properties of nano-materials depend to a large extent on the morphology of nano-materials, it is of substantial significance to synthesize more bismuth-sulfide nanostructures with special morphologies. In addition, the currently commonly used synthetic methods have the disadvantages of high cost, complex equipment, environmental pollution and impure products. The improvement of existing methods or the development of more energy-saving, safe, environmentally friendly and simple synthetic methods will be studied in the future. A key direction.

Application of bismuth sulfide

As an important semiconductor material, (Bi2S3) has potential application value in thermoelectric, electronic and optoelectronic devices and infrared spectroscopy. The band gap energy of bismuth sulfide at room temperature is 1.33eV, which can be used to make photoelectric converters and is widely used in thermoelectric cooling processes. Nano-scale bismuth sulfide can not only blue shift the ultraviolet-visible absorption wavelength and fluorescence emission wavelength, but also produce The nonlinear optical response enhances the oxidation-reduction ability of nanoparticles, and also has excellent photoelectric catalytic performance. It has a wide range of application prospects in luminescent materials, nonlinear optical materials, and photocatalytic materials. In recent years, people have also discovered that nano-bismuth sulfide is an excellent X-ray tomography (CT) contrast agent, which has unique advantages compared to traditional iodine contrast agents.

1) Preparation of a bismuth sulfide composite photocatalyst for sewage treatment and preparation method. The method prepares a bismuth sulfide precursor solution with bismuth nitrate, thioacetamide and water, prepares the solution with cadmium acetate, sodium sulfide, thioglycolic acid, urea and water and hydrothermally reacts to prepare a nitrogen-doped cadmium sulfide quantum dot solution. Then, the bismuth sulfide precursor solution and the nitrogen-doped cadmium sulfide quantum dot solution are mixed and subjected to microwave hydrothermal reaction to prepare a nitrogen-doped cadmium sulfide quantum dot modified bismuth sulfide composite photocatalyst. Compared with the traditional method, the bismuth sulfide composite photocatalyst prepared in the present invention has strong light energy absorption capacity and high light absorption efficiency, and can effectively realize the effective separation of photogenerated electrons and holes, inhibits the occurrence of photocorrosion, and has high catalytic activity , Which can quickly and efficiently degrade pollutants in wastewater.

2) Preparation of a bismuth sulfide/carbon nanotube composite material and its preparation method and its application as a lithium ion battery cathode material. The bismuth sulfide/carbon nanotube composite material has a mesoporous structure, in which the mass ratio of bismuth sulfide/carbon nanotube is 1:0.11~0.12, the specific surface area is 65~70cm3/g, and the pore diameter is 3~4nm; the bismuth sulfide is The nanorod structure has a length of 50 to 150 nm and a width of 5 to 10 nm, and is wrapped around the carbon nanotubes; the carbon nanotubes serve as a bridge connecting the rod-shaped Bi2S3 and extend beyond the surface of the Bi2S3. The invention solves the problem of volume expansion of the bismuth sulfide material when Li+ is deintercalated, and improves the cycle performance of the battery.

3) Preparation of a bismuth sulfide-zinc protoporphyrin composite material with tumor photodynamic therapy properties under near-infrared light excitation and its preparation method and application, belonging to the field of composite materials. Solve the problem that bismuth sulfide has low efficiency of PDT due to the complex of photogenerated electrons and holes in photodynamic therapy and the ability of heme oxygenase (HO-1) in cells to resist oxidative stress. The composite material is a bismuth sulfide nanomaterial modified by synthesizing a polyN-isopropylacrylamide-acrylamide copolymer, and then a bismuth sulfide-zinc protoporphyrin composite material synthesized by the condensation reaction of a carboxyl group and an amino group. The prepared composite material enhances the efficiency of photodynamic therapy by inhibiting heme oxygenase activity and promoting electron-hole separation. At the same time, the above-mentioned materials have good biocompatibility, photostability, CT imaging capabilities and enhanced PDT Efficiency provides ideas for the design of a new integrated nano-diagnosis and treatment system, which is of great significance to the early diagnosis and treatment of cancer.

Bismuth sulfide Bi2S3 price

The price of bismuth sulfide Bi2S3 products will vary with random factors such as production costs, transportation costs, international situations, exchange rates, market supply and demand for bismuth sulfide Bi2S3 products. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for bismuth sulfide Bi2S3 products, please feel free to send an inquiry to get the latest bismuth sulfide Bi2S3 product prices.

Bismuth sulfide Bi2S3 supplier

As a global supplier of bismuth sulfide Bi2S3, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (zinc sulfide, zinc disulfide, bismuth sulfide, etc.) high-purity targets, functional ceramics and structural devices, and provides OEM services.