Bismuth vanadate nanoparticles-wrapped nickel array method based on anodized alumina template
An anodized aluminum and nano-array technology, applied in anodizing, superimposed layer plating, vacuum evaporation plating, etc., can solve the problems of no advantage, self-importance, brittleness, etc.
Inactive Publication Date: 2021-04-09
SHANGHAI UNIV
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Problems solved by technology
Due to the relatively high manufacturing cost, heavy weight and brittle nature of conductive tin oxide glass (FTO), it is generally used for small-scale testing in laboratories, and has no advantages in large-scale photocatalytic applications.
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[0021] The object of the present invention is to provide a kind of preparation method based on the nickel array that the bismuth vanadate nanoparticle wrapping of anodized aluminum oxide template (AAO), concrete steps include
[0022] (1) Aluminum sheet pretreatment: Cut the aluminum sheet into a circle with a diameter of 2 to 3 cm, and pay attention to prevent scratches on the surface. These aluminum pieces were then placed in a beaker and ultrasonically cleaned for several minutes with deionized water, acetone and ethanol in sequence. The cleaned aluminum flakes were stored in ethanol for future use. Then take out the aluminum sheet stored in ethanol, use the electrolyte as a mixed solution of absolute ethanol and perchloric acid with a volume ratio of 6:1 to 9:1, the aluminum sheet as the anode, the lead block as the cathode, and the polishing current It is 0.6-1.5A, polished in an ice-water bath to obtain a mirror-like aluminum sheet, and finally rinsed with deionized wat...
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The invention relates to a method for preparing a nickel array wrapped with bismuth vanadate nanoparticles based on an anodic aluminum oxide template. A highly ordered one-dimensional nickel nanoarray is prepared by nanoimprinting anodized aluminum and template methods, and hereby Basically, SILAR is used to wrap a certain thickness of bismuth vanadate particles on the nickel nanoarray to form a one-dimensional bismuth vanadate-nickel nanoarray. The synthesis condition of the present invention is mild, the operation is simple and the repetition rate is high, and further photocatalytic performance tests show that the one-dimensional nanostructure photoelectrode has a higher photoresponse current, a higher light absorption efficiency and Good photocorrosion stability. Therefore, the one-dimensional bismuth vanadate-nickel nanoarray prepared by the above method is a novel and highly efficient photoelectrode, which brings new opportunities for the research of bismuth vanadate semiconductor materials for photocatalytic energy conversion. development inspiration.
Description
technical field [0001] The invention relates to the technical field of preparation of catalytic materials, in particular to a nickel array method based on anodized aluminum template-based bismuth vanadate nanoparticles wrapped. Background technique [0002] Bismuth vanadate, as a new generation of non-toxic and environmentally friendly materials, is used in such fields as coating, ink addition, food and photocatalysis. Due to its relatively low band gap, good photoelectric responsivity, and stable chemical properties, it has been fabricated into photoelectrodes with different morphologies and used in the field of optoelectronic devices. [0003] At present, the common method for preparing bismuth vanadate photoelectrodes is to use different precursor solutions to hang-coat on tin oxide conductive glass (FTO) or electrodeposit on conductive glass and then anneal to obtain the final photoelectrode. Conductive tin oxide glass (FTO) is generally in the form of planar flakes, so...
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IPC IPC(8): C23C28/00C23C14/18C23C14/24C25D3/12C25D5/18C25D11/04
CPCC23C14/18C23C14/24C23C28/322C23C28/345C25D3/12C25D5/18C25D11/045
Inventor 雷敏洋周鲁豪苗丽坤周思宇雷勇
Owner SHANGHAI UNIV