46results about How to "Efficient Photocatalytic Degradation" patented technology

A nanoporous copper-loaded porous cuprous oxide nanosheet composite material, the composite material is a rod, including an amorphous substrate, nanoporous copper covered on the amorphous substrate, and porous cuprous oxide nanosheets supported on the surface of the nanoporous copper sheet; the amorphous matrix is ​​Cu x Zr y Ti z al w Alloy composition, where x, y, z, and w are atomic percentages, 45≤x≤50, 20≤y≤25, 25≤z≤30, 5≤w≤10 and x+y+z+w=100; where The thickness of the nanoporous copper layer is 80-140 μm, the ductile bandwidth is 110-140 nm, and the pore size is 40-100 nm; the thickness of the nano-sheet is 50-90 nm, the length of the nano-sheet is 30-80 nm, and the width is 5-10 nm. 4nm. The preparation process of the invention is simple and the preparation period is short; the prepared composite material has good mechanical integrity and thermal stability, can be recycled and reused, and the economic benefit is improved.

The invention provides a synthesis method and application for imprinting-doped mesoporous TiO2 microspheres. The synthesis method includes dissolving 1-5ml of titanium source substances into 100-200ml of organic solution, adding 0.1-0.3g of catalytic into the organic solution, adding 0.1-0.5g of target molecules used as imprinting molecules while stirring the mixture, and further adding metal salt with the molar ratio ranging from 0.1% to 8% relative to a titanium source so as to introducing doping ions; and continuing stirring for 1-12 hours, then enabling the solution to react in a high-temperature and high-pressure kettle at the temperature ranging from 80 DEG C to 180 DEG C for 3-6 hours, centrifugally washing to obtain white solid, placing the white solid in a muffle furnace at the temperature ranging from 400 DEG C to 450 DEG C, keeping the temperature for 2-4 hours and then obtaining the imprinting-doped mesoporous TiO2 microspheres. The prepared materials are used for degrading target organic pollutant in water, have higher photocatalytic activity as compared with pure TiO2(P25), and are capable of selectively degrading the target pollutant. In addition, the imprinting-doped mesoporous TiO2 microspheres have a wider photoresponse range as compared with pure TiO2 undoped with imprinting, and have high visible light absorption capacity.