A kind of nano-array bismuth vanadate powder for sterilization and its preparation and application

A technology of arraying bismuth vanadate and powder, applied in the field of photocatalytic functional materials, can solve the problems of not fundamentally solving the interface electron flow and the control of photoacoustic electron separation and recombination, so as to solve the interface electron flow and photoacoustic separation and recombination. The effect of electron separation and recombination, excellent performance, and excellent visible light response

Active Publication Date: 2021-03-16
东北大学秦皇岛分校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the preparation process, the predecessors mainly focused on the morphology, performance and preparation method, and did not fundamentally solve the control of the flow direction of interface electrons and the separation and recombination of photoacoustic electrons.

Method used

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  • A kind of nano-array bismuth vanadate powder for sterilization and its preparation and application
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  • A kind of nano-array bismuth vanadate powder for sterilization and its preparation and application

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Embodiment 1

[0035] A kind of bismuth vanadate powder for sterilization nano array, its general formula is: (BiVO 4 ) x / (CdS) y , 0

[0036] Described a kind of preparation method for sterilizing nano-array bismuth vanadate powder comprises the following steps:

[0037] Step 1: Weigh 0.6mmol of bismuth nitrate and dissolve it in a certain amount of ethylene glycol solution (the volume of ethylene glycol is 20 times the molar amount of bismuth nitrate), add 0.1gCATB, and stir to obtain solution A;

[0038] Step 2: Weigh 0.6mmol NH 4 VO 3 Dissolve in deionized water (the volume of deionized water is 15 times the molar amount of bismuth nitrate), stir at 500r / min for 0.5h, and put the dissolved liquid into the extraction tube of the Soxhlet extractor. Slowly pour solution A into the flask at the upper end of the Soxhlet extractor, reflux at 100°C for 0.5 hour, and cool to obtain solution B.

[0039] Step 3: Weigh 0.9 mmol cadmium nitrate and dissolve it in deionized water (the v...

Embodiment 2

[0043] A kind of bismuth vanadate powder for sterilization nano array, its general formula is: (BiVO 4 ) x / (CdS) y , 0

[0044] Described a kind of preparation method for sterilizing nano-array bismuth vanadate powder comprises the following steps:

[0045] Step 1: Weigh 0.5mmol bismuth acetate and dissolve it in a certain amount of ethylene glycol solution (the volume of ethylene glycol is 15 times the molar amount of bismuth acetate), add 0.1gCATB, and stir to obtain solution A;

[0046] Step 2: Weigh 0.5mmol NH 4 VO 3 Dissolve in deionized water (the volume of deionized water is 10 times the molar amount of bismuth acetate), stir at 600r / min for 0.5h, and put the dissolved liquid into the extraction tube of the Soxhlet extractor. Slowly pour solution A into the flask at the upper end of the Soxhlet extractor, reflux at 80°C for 1 hour, and cool to obtain solution B.

[0047] Step 3: Weigh 1mmol cadmium acetate and dissolve it in deionized water (the volume of ...

Embodiment 3

[0051] A kind of bismuth vanadate powder for sterilization nano array, its general formula is: (BiVO 4 ) x / (CdS) y , 0

[0052] Described a kind of preparation method for sterilizing nano-array bismuth vanadate powder comprises the following steps:

[0053] Step 1: Weigh 1.2 mmol of bismuth phosphate and dissolve it in a certain amount of ethylene glycol solution (the volume of ethylene glycol is 10 times the molar amount of bismuth phosphate), add 0.1g CATB, and stir to obtain solution A;

[0054] Step 2: Weigh 1.2mmol NH 4 VO 3 Dissolve in deionized water (the volume of deionized water is 20 times the molar amount of bismuth phosphate), stir at 800r / min for 0.5h, and put the dissolved liquid into the extraction tube of the Soxhlet extractor. Slowly pour solution A into the flask at the upper end of the Soxhlet extractor, reflux at 90°C for 1 hour, and cool to obtain solution B.

[0055] Step 3: Weigh 1.8 mmol of cadmium phosphate and dissolve it in deionized wa...

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Abstract

The invention belongs to the field of photocatalytic functional materials, and particularly relates to nano-array bismuth vanadate powder for sterilization and preparation and application thereof. Thegeneral formula of the nano-array bismuth vanadate powder for sterilization is (BiVO4)x / (CdS)y, 0. The powder has high photocatalytic efficiency and a sterilization function; the preparation processis simple and easy to operate; the calcination temperature is low; the conditions are mild and easy to control; and a prepared sample has excellent performances, and is low in cost, and suitable for mass production.

Description

technical field [0001] The invention belongs to the field of photocatalytic functional materials, in particular to a nano-array bismuth vanadate powder used for sterilization and its preparation and application technology. Background technique [0002] Water is one of the most important substances for human beings to survive, produce and live. The problems of water quality and water purification directly affect the national economy and the daily production and life of the people. Untreated dye wastewater is directly discharged into rivers, lakes and seas, which will seriously pollute surface water resources and groundwater resources, not only make available water resources less and less, but also cause deformity and death of a large number of aquatic organisms. Therefore, high-tech technologies that can effectively degrade dyes in wastewater should be quickly studied. [0003] Bismuth vanadate (BiVO 4 ) have attracted great interest due to their unique properties, such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/04A01N59/16A01P1/00C02F1/30B82Y40/00C02F101/30
CPCA01N59/16B01J27/04B01J35/004B82Y40/00C02F1/30C02F2101/30C02F2305/10
Inventor 郭瑞刘宣文苏娜闫爱国李婷婷董佳鑫
Owner 东北大学秦皇岛分校
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