A method of preparing iron oxide from Escherichia coli flagella as a template for enhancing the activity of photocatalytic hydrogen production
A technology of Escherichia coli and iron oxide, which is applied in the direction of electrodes, electrolytic processes, electrolytic components, etc., can solve the problems of photogenerated electrons and holes recombination, photoelectrocatalytic production, and large transmission resistance, so as to improve and reduce the photoelectric hydrogen production activity. Composite, easy-to-manipulate effects
Active Publication Date: 2018-08-14
姜洪录
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Problems solved by technology
However, the absorption rate of iron oxide to sunlight is low, and the transmission resistance of the interface with the solution is relatively large, so it cannot be directly used for photocatalytic hydrogen production.
Fe 2 o 3 As a photocatalyst, there is a problem of recombination of photogenerated electrons and holes
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[0026] The present application will be further described in detail below in conjunction with the drawings and implementation examples. It can be understood that the specific implementation cases described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.
[0027] Specific implementation cases:
[0028] A preparation of Fe using Escherichia coli flagella as a biological template 2 o 3 nanoparticle approach.
[0029] The experimental drugs used in this example are:
[0030] Ferric nitrate nonahydrate (analytical pure), purchased from Shanghai Sinopharm Chemical Reagent Co., Ltd.;
[0031] Nickel nitrate (analytical pure), purchased from Shanghai Sinopharm Chemical Reagent Co., Ltd.;
[0032] Anhydrous ethanol was purchased from Tianjin Yongda Chemical Reagent Co., Ltd.;
[0033] The specific steps in this example are as ...
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Abstract
The invention discloses a method for preparing Fe2O3 / escherichia coli flagella / Ni(OH)2 for enhancing photocatalytic hydrogen production activity by using escherichia coli flagella as template. The method mainly comprises the following steps: (1) culturing escherichia coli, purifying and the like; (2) preparing alpha-Fe2O3, namely preparing alpha-Fe2O3 under an alcohol system by utilizing an improved electrodeposition method; and (3) preparing the alpha-Fe2O3 / escherichia coli / nickel hydroxide film. By adopting the method, a Fe2O3 / escherichia coli flagella / Ni(OH)2 compound film is prepared by adopting escherichia coli flagella as a template, and tests prove that the film has an effect of enhancing the photocatalytic chemical hydrogen production activity. The method is simple and convenient, is easy to operate, and has a relatively large application prospect.
Description
technical field [0001] This patent belongs to the field of photoelectric catalysis, and specifically relates to a method for preparing Fe 2 o 3 Methods for enhancing photocatalytic hydrogen production activity. Background technique [0002] With the development of society, people's demand for energy is increasing, and the pollution caused by fossil energy is becoming more and more serious. Therefore, it is urgent to develop a new type of clean energy to solve the current energy problem. The use of solar photoelectric catalysis to produce hydrogen clean energy is considered to be one of the most promising approaches. [0003] Iron oxide (Fe 2 o 3 ) has become a widely used photocatalyst due to its narrow band gap, abundant reserves, and green and non-polluting advantages. However, due to the low absorption rate of iron oxide to sunlight and the large transmission resistance with the solution interface, it cannot be directly used for the production of hydrogen by photoele...
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IPC IPC(8): C25B1/02C25B11/06C25D9/08C25D9/04B82Y40/00
CPCB82Y40/00C25B1/02C25D9/04C25D9/08C25B1/55C25B11/095Y02P20/133
Inventor 何涛王海花
Owner 姜洪录