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Cu/Co@NPC compound used for catalytic reduction of p-nitrophenol

A technology of p-nitrophenol and p-aminophenol, applied in chemical/physical processes, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as poor catalytic performance

Inactive Publication Date: 2017-01-18
新疆轻工职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary nano Cu and Co are easy to agglomerate and have poor catalytic performance

Method used

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  • Cu/Co@NPC compound used for catalytic reduction of p-nitrophenol
  • Cu/Co@NPC compound used for catalytic reduction of p-nitrophenol
  • Cu/Co@NPC compound used for catalytic reduction of p-nitrophenol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: 0.6 mmol Cu(NO 3 ) 2 ·3H 2 O, 0.9 mmol Na 3 C 6 h 5 o 7 2H 2 O was dissolved in 15 mL deionized water, and another 0.4 mmol K 3 [Co(CN) 6 ] dissolved in 15 mL deionized water, the above two solutions were quickly mixed, and aged at room temperature for 24 h. Centrifuged to get solid powder, this solid powder was washed several times with deionized water and ethanol respectively, 60 o C Vacuum dried. The dried solid powder was dried in a tube furnace with an Ar atmosphere of 600 o C roasting for 3 h with a heating rate of 2 o C·min -1 , see attached figure 1 To attach Figure 5 .

Embodiment 2

[0015] Example 2: 0.6 mmol CuCl 2 2H 2 O, 0.9 mmol Na 3 C 6 h 5 o 7 2H 2 O was dissolved in 15 mL deionized water, and another 0.4 mmol K 3 [Co(CN) 6 ] dissolved in 15 mL deionized water, the above two solutions were quickly mixed, and aged at room temperature for 24 h. Centrifuged to get solid powder, this solid powder was washed several times with deionized water and ethanol respectively, 60 o C Vacuum dried. The dried solid powder was dried in a tube furnace with an Ar atmosphere of 600 o C roasting for 3 h with a heating rate of 2 o C·min -1 .

Embodiment 3

[0016] Example 3: 0.6 mmol CuSO 4 ·5H 2 O, 0.9 mmol Na 3 C 6 h 5 o 7 2H 2 O was dissolved in 15 mL deionized water, and another 0.4 mmol K 3 [Co(CN) 6 ] dissolved in 15 mL deionized water, the above two solutions were quickly mixed, and aged at room temperature for 24 h. Centrifuged to get solid powder, this solid powder was washed several times with deionized water and ethanol respectively, 60 o C Vacuum dried. The dried solid powder was dried in a tube furnace with an Ar atmosphere of 600 o C roasting for 3 h with a heating rate of 2 o C·min -1 .

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Abstract

The invention relates to a nitrogen modified carbon (NPC) coated copper / cobalt (Cu / Co@NPC) compound obtained through a roasting technology with Cu-Co Prussian blue Cu3<II>[Co<III>(CN)6]2(Cu-Co PBA) as a template. A preparation method of the compound comprises the following steps: synthesizing Cu-Co PBA through a standing technology, and roasting the Cu-Co PBA in a tubular furnace in Ar / N2 atmosphere at different temperatures to obtain the Cu / Co@NPC compound.

Description

technical field [0001] The present invention uses Cu-Co class Prussian blue Cu II 3 [Co III (EN) 6 ] 2 (Cu-CoPBA)-templated nitrogen-modified carbon-coated copper-cobalt (Cu / Co@NPC) composite with high specific surface area and strong magnetism as a catalyst for the reduction of p-nitrophenol. Background technique [0002] P-aminophenol (PAP) is an important chemical and pharmaceutical intermediate, which is mainly used in the synthesis of antipyretic and analgesic drugs, rubber additives, dyes, feedstuffs, petroleum additives and photographic developers. At present, the production of PAP in my country mainly adopts p-nitrophenol (PNP) iron powder reduction method and PNP catalytic hydrogenation method. The iron powder reduction method has high production cost and serious pollution; the catalytic hydrogenation method has a simple process and good product purity, but the Pd-type catalyst is expensive, and the Ni-type catalyst is easy to deactivate. Therefore, it is of ...

Claims

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Application Information

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IPC IPC(8): B01J27/24
CPCB01J27/24
Inventor 郭佳杨永红李辉
Owner 新疆轻工职业技术学院
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