112results about How to "High utilization rate of visible light" patented technology

The invention discloses a composite nanometer phosphotungstic acid-titanium dioxide photocatalysis material and a preparation method thereof. The method includes the steps: firstly, titanium dioxide cThe invention discloses a composite nanometer phosphotungstic acid-titanium dioxide photocatalysis material and a preparation method thereof. The method includes the steps: firstly, titanium dioxide cstill be maintained.an still be maintained.ght; and further more, after the subsequent step of heating photocatalysis materials is accomplished, the keggin structure of the phosphotungstic acid is not affected, and high catalytic activity can ght; and further more, after the subsequent step of heating photocatalysis materials is accomplished, the keggin structure of the phosphotungstic acid is not affected, and high catalytic activity c liollosol, phosphotungstic acid and propylene glycol methyl ether, of which the mass ratio is 20 to 3 to 50, are uniformly mixed to form composite collosol; secondly, the composite collosol is heated foollosol, phosphotungstic acid and propylene glycol methyl ether, of which the mass ratio is 20 to 3 to 50, are uniformly mixed to form composite collosol; secondly, the composite collosol is heated for 30 minutes at the temperature of 300 DEG C to form dried gel; and finally, the dried gel is mechanically processed for two hours by ball milling so as to obtain phosphotungstic acid-titanium dioxider 30 minutes at the temperature of 300 DEG C to form dried gel; and finally, the dried gel is mechanically processed for two hours by ball milling so as to obtain phosphotungstic acid-titanium dioxidephotorecombination photocatalyst materials. Compared with the prior art, the phosphotungstic acids of the invention are combined into a stable netty structure in the form of W-O-P molecular linkages, photorecombination photocatalyst materials. Compared with the prior art, the phosphotungstic acids of the invention are combined into a stable netty structure in the form of W-O-P molecular linkages, thereby reducing the oxidation-reduction potential, enabling a titanium dioxide composite membrane photoabsorption wavelength to generate redshift, and improving the utility ratio of titanium visiblethereby reducing the oxidation-reduction potential, enabling a titanium dioxide composite membrane photoabsorption wavelength to generate redshift, and improving the utility ratio of titanium visibleli

The invention relates to a degradable synthetic fiber composition, a preparation method thereof and a prepared biodegradable synthetic fiber product. The biodegradable synthetic fiber composition comprises a polymer and two or more transition metal salts dispersed in the polymer; and at least one of the transition metal salts is a polyvalent metal salt. The invention can degrade polyester, polyamide and styrene polymers, and selects more than two transition metal additives to produce synergistic effect, so as to directly improve the utilization rate of ultraviolet and visible light; and oxidation-biodegradation is applied to artificial fiber synthesis for the first time, and the existing equipment can be directly used for commercial production. The formula and method of the invention in particular can be directly applied to the non-woven fabric weaving technology to further reduce environmental pollution caused by wastes.