4 results about "Sulfuryl fluoride" patented technology

The application discloses anthraquinone-based polysulfate and a preparation method and photocatalytic application thereof, and belongs to the field of polymer material synthesis and photocatalytic technology. The polysulfate takes 2,6-dihydroxyanthraquinone derivative as a core monomer, is connected through a sulfate bond to form a conjugated polymer, and has excellent visible light absorption capacity and electron transport performance. The preparation method takes 2,6-dihydroxyanthraquinone as a starting material, synthesizes a double silyl ether protected anthraquinone intermediate and a thiofluoride activated anthraquinone intermediate respectively, and finally performs polycondensation on the two intermediates under a potassium hydrogen fluoride / crown ether catalytic system. The material can catalyze hydrogen peroxide to be generated from water and oxygen under visible light irradiation, and the yield reaches 2667 μmol·h ‑1 ·g ‑1 , is a new type of efficient photocatalytic material, and has wide application prospects in the fields of green synthesis and environmental catalysis.

The application relates to the field of soil improvement, and specifically discloses a soil fumigant for preventing and treating soil-borne diseases and application. The soil fumigant is a sulfuryl fluoride compound, and one fluorine atom in the sulfuryl fluoride structure is replaced by a short-chain alkyl group, a short-chain alkenyl group or a halogenated short-chain alkyl group. The soil fumigant has a broad-spectrum effect on the prevention and treatment of soil-borne pathogenic fungi, bacteria, pythium and root-knot nematodes, is a high-value crop soil-borne disease prevention and control product, and solves the problem of shortage of existing soil fumigants.