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Preparation of a nano-superstructure of antimony phosphate and its new application in photocatalysis

An antimony phosphate nanometer and superstructure technology is applied in the field of photocatalytic materials, which can solve the problems of no application report of antimony phosphate, cumbersome operation, and difficulty in obtaining raw materials, and achieves the effects of simple preparation method, good photocatalytic activity, and wide variety of types.

Active Publication Date: 2019-01-01
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation methods of antimony phosphate reported so far are either cumbersome to operate, or the raw materials are not easy to obtain
There is no report on the application of antimony phosphate in photocatalysis

Method used

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  • Preparation of a nano-superstructure of antimony phosphate and its new application in photocatalysis
  • Preparation of a nano-superstructure of antimony phosphate and its new application in photocatalysis
  • Preparation of a nano-superstructure of antimony phosphate and its new application in photocatalysis

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Embodiment

[0024] Add 65mL of water to the beaker, add 1.967g of diethylenetriaminepentaacetic acid and 1.141g of antimony trichloride in turn, and stir thoroughly in a water bath at 60°C for 1h; then add 0.575g of ammonium dihydrogen phosphate, and stir thoroughly for 0.5h to form a precursor The precursor mixed solution is filtered to obtain the precursor solution and the precursor precipitate. Put the precursor solution in a 60°C water bath for 10 to 20 minutes to form a suspension system; take the suspension clarified liquid and all the precursor precipitation in the suspension system and pour it into a 50mL polytetrafluoroethylene-lined stainless steel hydrothermal reaction kettle. The volume of the suspension clarified liquid is half of the suspension system, subjected to constant temperature hydrothermal reaction at 160° C. for 10 h, centrifuged, washed and dried to obtain the product.

[0025] Electron microscope observation and X-ray diffraction determination were carried out on...

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Abstract

The invention relates to preparation and novel photocatalysis application of an antimony phosphate nano superstructure. The preparation comprises the following steps: sequentially dissolving diethylenetriamine pentaacetic acid and antimony trichloride into de-ionized water and sufficiently stirring under a 60 DEG C water bath condition; then adding ammonium dihydrogen phosphate and sufficiently stirring to form a precursor mixed solution; filtering the precursor mixed solution to obtain a precursor solution and precursor sediment; standing the precursor solution in a 60 DEG C water bath for 10min to 20min to form a suspension system; pouring suspended clarified liquid at an upper part of the suspension system and all the precursor sediment into a stainless steel hydrothermal reaction kettle with a polytetrafluoroethylene lining and carrying out a constant-temperature hydrothermal reaction at 160 DEG C for 10h; centrifuging, washing and drying to obtain a product. The preparation method of the antimony phosphate nano superstructure is simple and prepared antimony phosphate has relatively good photocatalytic activity; types of photocatalysts, shape types of the antimony phosphate and preparation methods are expanded.

Description

technical field [0001] The invention relates to the field of photocatalytic materials, in particular to the preparation of an antimony phosphate nano superstructure and its new photocatalytic application. Background technique [0002] Because semiconductor materials have excellent photocatalytic properties and have good application prospects in the degradation of environmental pollutants, they have attracted people's attention, and the number of photocatalysts discovered and reported is also increasing day by day. When nanostructures are aggregated from zero-dimensional or one-dimensional into multidimensional nano-superstructures, new properties can emerge, such as optical, electrical, magnetic and catalytic properties. Nano-superstructures assembled from nano-units have become one of the current research hotspots, such as hollow spheres and three-dimensional flower-like nanostructures. Due to the excellent photocatalytic application performance of semiconductor materials,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/37B01J27/186
CPCB01J27/186B01J35/004C01B25/37C01P2002/72C01P2004/03C01P2004/61
Inventor 滕飞陈艺鑫陈瑶佳李敏
Owner NANJING UNIV OF INFORMATION SCI & TECH
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