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Preparation method of hierarchical porous ball-flower shaped borate intercalation hydrotalcite nanometer material

A borate intercalation, nanomaterial technology, applied in nanotechnology, chemical instruments and methods, inorganic chemistry and other directions, can solve problems such as unfavorable environmental friendliness, and achieve the effects of easy availability of raw materials, mild reaction conditions, and simple preparation methods.

Active Publication Date: 2018-12-28
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reaction temperature is higher, which improves the crystallinity, but it is not conducive to environmental friendliness

Method used

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  • Preparation method of hierarchical porous ball-flower shaped borate intercalation hydrotalcite nanometer material
  • Preparation method of hierarchical porous ball-flower shaped borate intercalation hydrotalcite nanometer material
  • Preparation method of hierarchical porous ball-flower shaped borate intercalation hydrotalcite nanometer material

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Experimental program
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Effect test

Embodiment 1

[0022] Dissolve 0.38g (1mmol) aluminum nitrate nonahydrate and 0.78g magnesium nitrate hexahydrate (3mmol) in 5mL deionized water, which is referred to as solution A, and 3.54g (13mmol) ammonium pentaborate is dissolved in 20mL deionized water, which is recorded as Solution B, then add solution A dropwise to solution B, stir for 10 minutes after the dropwise addition, then add 0.4g (10mmol) sodium hydroxide and 0.48g (8mmol) urea, stir for 30min, transfer to 50mL polytetrafluoroethylene In a lined stainless steel autoclave, put it into an oven, and stand at 120°C for 24 hours under airtight conditions. Cool naturally after the reaction, filter with suction, and wash with deionized water and absolute ethanol in sequence. The obtained sample was dried in an oven at 60° C. for 12 hours to obtain a white powder.

[0023] The inventor uses an X-ray diffractometer, an infrared spectrometer, a cold field emission scanning electron microscope and a physical adsorption instrument to c...

Embodiment 2

[0027] In the present embodiment, the addition amount of sodium hydroxide is 0.2g (5mmol), and other steps are identical with embodiment 1, obtains white powder multi-level porous flower spherical borate radical intercalation class hydrotalcite nanomaterial (see Figure 7 ).

Embodiment 3

[0029] In the present embodiment, the addition of urea is 0.72g (12mmol), and other steps are identical with embodiment 1, obtains white powder multi-level porous flower spherical borate radical intercalation class hydrotalcite nanomaterial (see Figure 8 ).

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Abstract

The invention discloses a preparation method of a hierarchical porous ball-flower shaped borate intercalation hydrotalcite nanometer material, magnesium nitrate, aluminum nitrate, sodium hydroxide andurea are taken as the main materials, ammonium pentaborate is added as a boron source and a structure directing agent to prepare the hierarchical porous ball-flower shaped borate intercalation hydrotalcite nanometer material through a hydrothermal method. The method is simple, the raw materials are easy to get, the reaction condition is mild, the specific surface area of the prepared borate intercalation hydrotalcite nanometer material is relatively large, has a hierarchical porous structure, has a better adsorption capacity, and can be applied to different fields like water pollution treatment, catalysis, adsorption, and medicines.

Description

technical field [0001] The invention belongs to the technical field of hydrotalcite-like preparation, and in particular relates to a preparation method of a hydrotalcite-like nanometer material intercalated with multi-level pore flower spherical borate radicals. Background technique [0002] Hydrotalcite-like materials, also known as layered double hydroxyl compound metal oxides, are composed of positively charged laminates and interlayer anions in an orderly assembly, with the compatibility of laminate metal cations and the exchangeability of intercalated anions. Sex and "memory effect" and other characteristics. In recent years, people have done a lot of research on it, and made some progress in its performance and mechanism research. It has been widely used in sewage treatment, photoelectric catalysis, medicine, flame retardancy, and adsorption. [0003] At present, the methods for synthesizing hydrotalcite-like materials mainly include: co-precipitation method, ion exch...

Claims

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Application Information

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IPC IPC(8): C01F7/00B82Y40/00
CPCB82Y40/00C01P2004/61C01P2006/12C01P2002/72C01P2002/85C01P2002/84C01P2002/82C01P2004/03C01P2004/32C01F7/78
Inventor 刘志宏贾亚欢
Owner SHAANXI NORMAL UNIV
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