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Preparation method for silver vanadate nano-wire

A silver vanadate, nanowire technology, applied in nanotechnology, chemical instruments and methods, vanadium compounds, etc., can solve problems such as narrow forbidden band width, and achieve the effects of short process, stable product quality, and uniform product size.

Inactive Publication Date: 2014-12-31
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hybrid valence band structure has more active energy levels than the 2p of single O, leading to a narrower band gap

Method used

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  • Preparation method for silver vanadate nano-wire

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0012] (1) 0.300g ammonium vanadate (NH 4 VO 4 ) and 0.500g P123 (EO 20 PO 70 EO 20 ) Add 30mL containing 2mL1mol / L nitric acid (HNO 3 ) in distilled water.

[0013] (2) After stirring for 7 hours at room temperature, add 1.100g of silver nitrate (AgNO 3 ).

[0014] (3) After stirring for another 1 h, the obtained solution was transferred into an autoclave and heat-treated at 120° C. for 24 h.

[0015] (4) The obtained precipitate was filtered, washed with distilled water and ethanol, and dried in an oven at 70°C.

specific Embodiment approach 2

[0016] Embodiment 2: Different from Embodiment 1, the temperature of the heat treatment in the autoclave in step (3) is 130°C.

specific Embodiment approach 3

[0017] Embodiment 3: The difference from Embodiment 1 is that the heat treatment temperature in the autoclave in step (4) is 140°C.

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Abstract

The invention provides a preparation method for a silver vanadate nano-wire. The silver vanadate nano-wire is synthesized by a surfactant assisted hydrothermal method, and the preparation method includes: adding a certain amount of ammonium vanadate (NH4VO4) and P123 into a certain amount of distilled water of 1mol / L nitric acid, conducting stirring at room temperature for 7h, then adding a certain amount of silver nitrate (AgNO3), further conducting stirring for 1h, then transferring the obtained solution into an autoclave and carrying out heat treatment at 120DEG C-150DEG C for 24h respectively, filtering the obtained precipitate, then conducting washing with distilled water and ethanol respectively, and conducting drying in a 70DEG C oven. The obtained silver vanadate powder has a single crystal nano-wire structure.

Description

technical field [0001] The invention relates to the field of preparation and application of semiconductor nanometer materials, in particular to the preparation of a silver-based nanowire photocatalytic material. Background technique [0002] Energy shortage and environmental pollution are serious problems facing human society in the 21st century. The world's non-renewable resources: oil, natural gas and coal are very limited, and my country's non-renewable resource reserves are less than the world's average level. Secondly, my country's urban pollution is particularly serious. Among the 50 cities with serious air pollution in the world, my country accounts for 31. To solve energy and environmental problems, we must find a new clean energy system. h 2 It plays an important role in the new energy system. Currently, H 2 It is mainly obtained by reforming fossil fuels such as natural gas, and there is still a certain amount of CO 2 emission. get H 2 The ideal way is to u...

Claims

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Application Information

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IPC IPC(8): C01G31/00B82Y40/00
Inventor 史海峰蓝奔月王颖超
Owner JIANGNAN UNIV