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Preparation and photocatalytic application of Na4Ni3P4O15 photocatalyst

A technology of sodium nickel phosphate and photocatalyst, which is applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., to achieve the effects of efficient catalytic degradation, good photocatalytic activity and simple preparation method

Inactive Publication Date: 2015-09-09
SUZHOU DEJIE MEMBRANE MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Inspired by this, we studied a novel photocatalyst Na 4 Ni 3 P 4 o 15 , found that this type of compound has excellent photocatalytic performance in response to ultraviolet light and visible light, and there is no report yet

Method used

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  • Preparation and photocatalytic application of Na4Ni3P4O15 photocatalyst
  • Preparation and photocatalytic application of Na4Ni3P4O15 photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: prepare Na 4 Ni 3 P 4 o 15

[0038] According to the chemical formula Na 4 Ni 3 P 4 o 15 The stoichiometric ratio of each element in, respectively weighed sodium carbonate Na 2 CO 3 : 0.848 g, nickel oxide NiO: 0.897 g, phosphorus pentoxide P 2 o 5 : 1.136 g, ground in an agate mortar and mixed evenly, then pre-calcined in a muffle furnace at 600°C for 5 hours in an air atmosphere, cooled naturally, and took out the sample; again the mixture was fully mixed and ground evenly, In the atmosphere, calcined at 1000°C for 6 hours, cooled to room temperature, taken out and fully ground to obtain Na 4 Ni 3 P 4 o 15 Photocatalyst powder.

[0039] See attached figure 1 , it is the X-ray powder diffraction pattern of the sample prepared according to the technical scheme of this embodiment, and the XRD test result shows that the prepared sodium nickel phosphate Na 4 Ni 3 P 4 o 15 It is a single-phase material with good crystallinity;

[0040] See...

Embodiment 2

[0045] Embodiment 2: prepare Na 4 Ni 3 P 4 o 15

[0046] According to the chemical formula Na 4 Ni 3 P 4 o 15 The stoichiometric ratio of each element in , respectively weighed sodium oxide Na 2 O: 0.496 g, basic nickel carbonate NiCO 3 2Ni(OH) 2 4H 2 O: 4.514 g, ammonium dihydrogen phosphate NH 4 h 2 PO 4 : 1.841 g, ground in an agate mortar and mixed evenly, then pre-calcined in an air atmosphere at 550°C for 8 hours in a muffle furnace, and after natural cooling, take out the sample; again fully mix the mixture and grind it evenly, in the air In the atmosphere, calcined at 950°C for 10 hours, cooled to room temperature, taken out and fully ground to obtain Na 4 Ni 3 P 4 o 15 Photocatalyst powder.

[0047] Its main structure, reflectance spectrum, concentration change for methylene blue degradation, kinetic curve and absorbance spectrum for methylene blue degradation are similar to those in Example 1.

Embodiment 3

[0048] Embodiment 3: prepare Na 4 Ni 3 P 4 o 15

[0049] According to the chemical formula Na 4 Ni 3 P 4 o 15 The stoichiometric ratio of each element in the formula, respectively weighed sodium bicarbonate NaHCO 3 : 1.344 g, nickel oxide Ni 2 o 3 : 0.992 g, phosphoric acid H 3 PO 4 : 1.568 g, ground in an agate mortar and mixed evenly, then pre-calcined in an air atmosphere at 400°C for 12 hours in a muffle furnace, cooled naturally, and took out the sample; again fully mixed the mixture and ground it evenly, in the air In the atmosphere, calcined at 850°C for 14 hours, cooled to room temperature, taken out and fully ground to obtain Na 4 Ni 3 P 4 o 15 Photocatalyst powder.

[0050] Its main structure, reflectance spectrum, concentration change for methylene blue degradation, kinetic curve and absorbance spectrum for methylene blue degradation are similar to those in Example 1.

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Abstract

The invention relates to a preparation method and a photocatalytic application of a novel Na4Ni3P4O15 photocatalyst and belongs to the field of inorganic photocatalytic materials. The photocatalytic material is prepared with a high-temperature solid state method or a chemical solution method, the obtained Na4Ni3P4O15 photocatalytic material is uniform in granularity and good in chemical stability and has the better photocatalytic effect, the preparation method is simple to operate and easy to implement, the production cost is low, industrial production is facilitated, organic pollutants can be well decomposed, and the photocatalytic material is ideal.

Description

technical field [0001] The invention relates to a preparation method and application of a novel sodium nickel phosphate photocatalyst material, in particular to Na 4 Ni 3 P 4 o 15 A photocatalyst and a preparation method thereof belong to the field of inorganic photocatalytic materials. Background technique [0002] Since the 21st century, with the continuous development of human society, while people's living standards have been continuously improved, the negative impacts have also been brought about, such as the waste and pollution of water resources, making people have to pay attention to this problem, so water bodies Pollution control has become one of the problems that people urgently need to solve. [0003] The photocatalytic reaction is a chemical reaction in which light, catalysts and substances exist and interact simultaneously, and the core of which is the photocatalytic material. Its catalytic mechanism is that after the catalyst is irradiated by light greate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/185C02F1/30C02F101/38
Inventor 马忠谢洪德
Owner SUZHOU DEJIE MEMBRANE MATERIAL SCI & TECH
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