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Preparation method for charcoal-loaded graphite phase carbon nitride composite photocatalyst capable of degrading petroleum hydrocarbon, and application thereof

A graphite phase carbon nitride and photocatalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, restoration of polluted soil, etc., can solve rare problems, achieve ideal yield, high specific surface area, low cost cheap effect

Inactive Publication Date: 2019-02-05
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some research progress has been made on other materials supported by carbon nitride, there are currently few reports on the combined use of biochar and graphitic carbon nitride to degrade soil petroleum hydrocarbons.

Method used

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  • Preparation method for charcoal-loaded graphite phase carbon nitride composite photocatalyst capable of degrading petroleum hydrocarbon, and application thereof
  • Preparation method for charcoal-loaded graphite phase carbon nitride composite photocatalyst capable of degrading petroleum hydrocarbon, and application thereof
  • Preparation method for charcoal-loaded graphite phase carbon nitride composite photocatalyst capable of degrading petroleum hydrocarbon, and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] (1) Preparation of biochar: Soybean stalks in Northeast China were collected, ears, leaves and surface ash on the outer surface were removed, rinsed with deionized water, dried at 70°C, crushed, and passed through a 60-mesh sieve. Weigh 30g of the above soybean stalk powder into an atmosphere furnace, calcinate at 500°C for 3h, and treat with 1mol / L hydrochloric acid to remove ash, wash with deionized water until neutral, dry overnight, and seal and store to obtain this black powder solid Recorded as biochar.

[0039] (2) Preparation of a mixture of biochar and melamine: Take 0.5 g of biochar and 0.5 g of melamine prepared in step (1), grind them for 1 hour until they are evenly mixed, and obtain a mixture of biochar and melamine.

[0040] (3) Preparation of biochar-supported graphite-phase carbon nitride composite photocatalyst: Measure 5 g of the mixture of biochar and melamine obtained in step (2), put it into an atmosphere furnace, and calcinate at 520°C for 4 hours...

Embodiment 2

[0044](1) Preparation of biochar: Soybean stalks in Northeast China were collected, ears, leaves and surface ash on the outer surface were removed, rinsed with deionized water, dried at 70°C, crushed, and passed through a 60-mesh sieve. Weigh 30g of the above-mentioned soybean straw powder into an atmosphere furnace, calcinate at 500°C for 3h, weigh the obtained black powder, treat with 1mol / L hydrochloric acid to remove ash, wash with deionized water until neutral, dry overnight, and seal Preserve, this black powder solid that obtains is recorded as biochar.

[0045] (2) Preparation of a mixture of biochar and melamine: Take 1 g of biochar prepared in step (1) and 2 g of melamine, grind them for 1 hour until they are evenly mixed, and obtain a mixture of biochar and melamine.

[0046] (3) Preparation of biochar-supported graphite-phase carbon nitride composite photocatalyst: Measure 5 g of the mixture of biochar and melamine obtained in step (2), put it into an atmosphere fur...

Embodiment 3

[0050] (1) Preparation of biochar: Soybean stalks in Northeast China were collected, ears, leaves and surface ash on the outer surface were removed, rinsed with deionized water, dried at 70°C, crushed, and passed through a 60-mesh sieve. Weigh 30g of the above-mentioned soybean straw powder into an atmosphere furnace, calcinate at 520°C for 4h, weigh the obtained black powder, treat with 1mol / L hydrochloric acid to remove ash, wash with deionized water until neutral, dry overnight, and seal Preserve, this black powder solid that obtains is recorded as biochar.

[0051] (2) Preparation of a mixture of biochar and melamine: Take 1 g of biochar prepared in step (1) and 4 g of melamine, grind them for 1 hour until they are evenly mixed, and obtain a mixture of biochar and melamine.

[0052] (3) Preparation of biochar-supported graphite-phase carbon nitride composite photocatalyst: Measure 5 g of the mixture of biochar and melamine obtained in step (2), put it into an atmosphere fu...

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Abstract

The invention belongs to the field of environmental material preparation, and particularly relates to a preparation method for charcoal-loaded graphite phase carbon nitride composite photocatalyst capable of degrading petroleum hydrocarbon, and application thereof. The preparation method comprises the following steps: cleaning a soybean straw to remove surface impurities, drying, calcining, naturally cooling to the room temperature, taking out a black charcoal solid, smashing the black charcoal solid into black charcoal powder, and drying after acid pickling to obtain the charcoal; mixing thecharcoal and melamine powder, and grinding to obtain the mixture of the charcoal and the melamine; after the mixture of the charcoal and the melamine is subjected to high-temperature calcination for aperiod of time, the mixture is naturally cooled to the room temperature to be taken out; the obtained black gray solid powder is grinded, and a target product is obtained. The charcoal-loaded graphite phase carbon nitride composite photocatalyst is easy in synthesis, has a high specific surface area and high photocatalytic activity; environmental protection efficacy is obvious, and the soil petroleum hydrocarbon degradation effect is ideal.

Description

technical field [0001] The invention belongs to the field of environmental material preparation, and in particular relates to a preparation method and application of a biochar-loaded graphite-phase carbon nitride composite photocatalyst for degrading petroleum hydrocarbons. Background technique [0002] Petroleum is a complex mixture of various hydrocarbons and small amounts of other organic substances. At present, the oil exploitation in the world is mainly divided into land exploitation and ocean exploitation, among which the output of land exploitation accounts for more than 70% of the global exploitation. However, when oil production is carried out on land, the production facilities all over the oil field will directly or indirectly leak crude oil on the ground of the oil area for various reasons. After these petroleum substances enter the soil environment, a series of physical and chemical reactions will occur, thus Serious pollution to the ecological environment. In ...

Claims

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Application Information

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IPC IPC(8): B01J27/24B09C1/08
CPCB01J27/24B09C1/08B01J35/39
Inventor 李法云李佳宇王艳杰邢杨陈佳勃吝美霞
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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