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Nickel complex/TiO2 composite material as well as preparation method and application thereof

A technology of nickel complexes and composite materials, which is applied in the field of photocatalysis, can solve the problems of unsatisfactory photocatalyst stability, and achieve the effects of excellent hydrogen production activity, excellent stability, and mild reaction conditions

Inactive Publication Date: 2022-05-13
BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the modified TiO 2 The stability of photocatalysts is still not ideal

Method used

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  • Nickel complex/TiO2 composite material as well as preparation method and application thereof
  • Nickel complex/TiO2 composite material as well as preparation method and application thereof
  • Nickel complex/TiO2 composite material as well as preparation method and application thereof

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Embodiment 1

[0048] This embodiment provides a nickel complex / TiO 2 Composite material, its preparation method comprises the steps:

[0049] (1) Nickel chloride hexahydrate NiCl 2 ·6H 2 O (0.1188g, 0.5mmol), diphenylphosphonic acid (0.2182g, 1.0mmol) were dissolved in 7mL of absolute ethanol, and stirred evenly at room temperature;

[0050] (2) Add different amounts of commercial P25(TiO 2 ), its molar ratio Ni / Ti=1 / X (X=1,5,10);

[0051] (3) After the mixture of step (2) is ultrasonically treated and stirred evenly, it is transferred to a 15mL stainless steel autoclave lined with polytetrafluoroethylene, and the reactor is placed in a muffle furnace; the reactor is heated at 180°C Keep for 72h under the condition of constant temperature;

[0052] (4) After the reaction time is over, take out the reaction kettle, cool it to room temperature naturally, open the reaction kettle, filter, wash with absolute ethanol, and dry in air to obtain three white samples (i.e. NiC 24 h 20 P 2 o ...

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Abstract

The invention relates to the technical field of photocatalysis, in particular to a nickel complex / TiO2 composite material and a preparation method and application thereof. The chemical formula of the nickel complex / TiO2 composite material is NiC < 24 > H < 20 > P < 2 > O < 4 > / X < 2 > O < 2 >, wherein X represents 1, 5 or 10. The preparation method of the nickel complex / TiO2 composite material comprises the following steps: taking nickel salt, diphenylphosphonic acid and TiO2 as raw materials, and carrying out solvothermal reaction. The nickel complex / TiO2 composite material provided by the invention has excellent activity and stability in hydrogen production by photocatalytic oxidation of ethanol; moreover, the composite material is simple in synthesis method, mild in reaction condition and easily available in raw materials.

Description

technical field [0001] The invention relates to the technical field of photocatalysis, in particular to a nickel complex / TiO 2 Composite materials and their preparation methods and applications. Background technique [0002] In recent years, due to the widespread application of non-renewable energy such as fossil energy, energy shortage and environmental pollution have become two major problems faced by human beings. The development and development of environmentally sustainable, reliable, benign, and affordable alternative energy sources has received increasing attention from researchers. [0003] Since 1972, Japanese researchers Fujishima and Honda discovered TiO 2 Since it can split water to produce hydrogen under ultraviolet light, it is considered to be one of the most promising semiconductor photocatalysts. Due to its unique chemical stability, high reactivity, non-toxic and harmless safety, TiO 2 It has been widely used in p-type transparent conductors, self-clean...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38B01J31/24C01B3/32
CPCB01J31/38B01J31/24C01B3/326C01B2203/1058C01B2203/1041C01B2203/1229B01J35/39
Inventor 李爱红刘晴韩俊萍杨楠李寅明郭建平
Owner BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
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