Preparing method and application of nitro phthalocyanine zinc/sulfur-containing carbon nitride composite catalyst

A technology of nitrozinc phthalocyanine and composite catalyst, which is applied in the field of photocatalytic degradation of organic pollutants, can solve the problems of poor photocatalytic performance, large band gap, and low utilization rate of sunlight, and achieves simple operation and simple synthesis method Ease of operation and excellent photocatalytic activity

Active Publication Date: 2015-10-28
常州创嬴建材制造有限公司
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Problems solved by technology

However, g-C 3 N 4 The bandgap width is large (2.7eV), the absorption light is mainly concentrated in the ultraviolet region (λ<400nm), and the utilization rate of sun

Method used

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  • Preparing method and application of nitro phthalocyanine zinc/sulfur-containing carbon nitride composite catalyst
  • Preparing method and application of nitro phthalocyanine zinc/sulfur-containing carbon nitride composite catalyst
  • Preparing method and application of nitro phthalocyanine zinc/sulfur-containing carbon nitride composite catalyst

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Embodiment 1

[0030] (1) Weigh 5.0mmol of zinc acetate dihydrate, 20.0mmol of 3-nitrophthalonitrile, 100ml of n-amyl alcohol and 3.0mL of DBU, heat and reflux at 130°C for 6 hours, then cool, suction filter, and Wash the product with anhydrous methanol until the filtrate is colorless, then wash with distilled water, then use 100 mL each of 15% HCl and 0.5 mol / L NaOH, slightly boil at 90 ° C for 1 h, cool and centrifuge, and then dry to obtain a dark blue powder , that is, 1,8,15,22-tetranitrozinc phthalocyanine solid. We performed UV characterization of tetranitrocobalt phthalocyanine as figure 1 As shown, there is an obvious absorption peak around 671nm of visible light, which is the Q-band absorption peak of ZnTNPc. There is an obvious absorption peak at 335nm in the ultraviolet region, which is the B-band absorption peak of ZnTNPc.

[0031] (2) Add 1g of cyanamide and 0.30g of thiourea into 50ml of distilled water, stir for 6h to fully dissolve. Then put it in an oven at 70°C for 24h....

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Abstract

The invention discloses a preparing method and application of a nitro phthalocyanine zinc/sulfur-containing carbon nitride composite catalyst and belongs to the field of preparation of photocatalytic materials. The preparing method of the nitro phthalocyanine zinc/sulfur-containing carbon nitride composite catalyst comprises the following steps that 1, the composite catalyst is prepared, wherein nitro phthalocyanine zinc and sulfur-containing carbon nitride are prepared respectively, then a nitro phthalocyanine zinc/sulfur-containing carbon nitride composite material (ZnTNPc-CNS) is prepared through the dipping method, and a series of composite materials are prepared by adjusting the different sulfur content of the carbon nitride; 2, the property characterization of photocatalytic degradation of the organic pollutant-methylene blue is achieved, wherein the effect of degradation of methylene blue by pure nitro phthalocyanine zinc is not obvious, and the photocatalytic degradation effect is obviously improved after the nitro phthalocyanine zinc is combined with the sulfur-containing carbon nitride. The novel nitro phthalocyanine zinc/sulfur-containing carbon nitride composite material prepared through the method has good methylene blue photocatalytic degradation performance and is an environment-friendly and efficient photocatalyst.

Description

technical field [0001] The invention belongs to the field of photocatalytic degradation of organic pollutants, in particular to a nitrometallic zinc phthalocyanine / sulfur-containing carbon nitride composite catalyst and a preparation method thereof. Background technique [0002] In recent years, photocatalytic technology has developed rapidly, and it is a green technology with important application prospects in the field of pollution control. The mechanism is that under the irradiation of a specific wavelength, the surface of the catalyst is activated and has multiple functions such as oxidative decomposition of organic pollutants, deodorization, and corrosion protection. [0003] The macrocycle of metal phthalocyanine derivatives has two characteristics of electron donor and electron acceptor. Its electron donating ability can be adjusted by changing the central metal ion and the substituents around the phthalocyanine. The central ion of phthalocyanine can interact with oth...

Claims

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Application Information

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IPC IPC(8): B01J31/22C02F1/30
Inventor 梁倩张淼李忠玉徐松
Owner 常州创嬴建材制造有限公司
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