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Alkaline earth metal salt/g-C3N4 composite adsorbing material and application thereof in adsorption and degradation of triphenylmethane dye wastewater

A technology of composite adsorption materials and mixed materials, which is applied in the field of synthesis and adsorption and degradation of organic wastewater, can solve the problems of complex preparation process, low adsorption efficiency, and poor selectivity, and achieve simple preparation process, short processing time and fast degradation efficiency Effect

Inactive Publication Date: 2019-09-27
CHONGQING TECH & BUSINESS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: aiming at the problems in the prior art of poor selectivity of the adsorption material, low adsorption efficiency, complex preparation process, complex regeneration, and pollution to the environment, and to provide a A method for preparing a composite adsorbent material with high selectivity, high adsorption efficiency, rich and easy-to-obtain raw materials, simple preparation, and environmental friendliness, a composite adsorbent material for treating triphenylmethane substances in wastewater, and a treatment method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a composite adsorbent, comprising the steps of:

[0023] 1) Take 6.0g BaCO respectively 3 , 12.0g C 3 h 6 N 6 As a mixed raw material, the mixed raw material was dissolved in 15 mL of deionized water, and then ultrasonically dispersed for 15 min to mix evenly to obtain a mixed solution.

[0024] 2) Put the mixed solution obtained in step 1) in an oven at 60°C for 1.5 h to remove excess water in the mixed solution and obtain a dried mixed material.

[0025] 3) The dried mixed material in step 2) was calcined in a muffle furnace, the temperature was set at 600° C., and the calcined time was 4 hours to obtain the calcined material.

[0026] 4) After the calcined material obtained in step 3) is cooled to room temperature, it is finely ground with a mortar to obtain the prepared composite adsorption material.

[0027]This embodiment also provides an adsorbent for treating triphenylmethane substances in wastewater, the components of which are the c...

Embodiment 2

[0030] A method for preparing a composite adsorbent, comprising the steps of:

[0031] 1) Take 9.0g BaCO respectively 3 , 9.0 g C 3 h 6 N 6 As a mixed raw material, the mixed raw material was dissolved in 20 mL of deionized water, and then ultrasonically dispersed for 20 min to make it evenly mixed to obtain a mixed solution.

[0032] 2) Put the mixed solution obtained in step 1) in an oven at 80°C and dry for 2 hours to remove excess water in the mixed solution and obtain a dried mixed material.

[0033] 3) The dried mixed material in step 2) was calcined in a muffle furnace, the temperature was set at 600° C., and the calcined time was 4 hours to obtain the calcined material.

[0034] 4) After the calcined material obtained in step 3) is cooled to room temperature, grind it finely with a mortar to obtain the prepared composite adsorption material.

[0035] This embodiment also provides an adsorbent for treating triphenylmethane substances in wastewater, the components o...

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Abstract

The invention provides a preparation method of an alkaline earth metal salt / g-C3N4 composite adsorbing material, a composite adsorbing material for treating triphenylmethane substances in waste water and a treating method. The composite adsorbing material takes BaCO3 and C3H6N6 as mixed raw materials, and is prepared through the following steps: mixing the raw materials to prepare a water solution, drying for 1-2 h at 60-80 DEG C, calcining at 400-700 DEG C for 4-6 h, cooling, grinding and the like. During specific treatment, the composite adsorbing material for treating the triphenylmethane substances in the waste water is added into the waste water for treatment. The preparation process involved in the invention has the advantages that the process is simple and easy to control, the operation is convenient, the cost is low, the raw materials are rich and easy to get and the like. The composite adsorbing material provided by the invention has excellent adsorbing performance to the triphenylmethane substances in the waste water and high adsorbing efficiency, and the degradation rate of crystal violet is as high as 92.26%. The composite adsorbing material has important application prospect in treating the organic waste water.

Description

technical field [0001] The invention belongs to the technical field of synthesis of composite adsorption materials and adsorption and degradation of organic wastewater, and specifically relates to a preparation method of composite adsorption materials, a composite adsorption material for treating triphenylmethane substances in wastewater and a treatment method. Background technique [0002] In recent years, many compounds containing nitrogen and phosphorus have been widely used in detergents, and urea is also commonly used in various printing and dyeing processes, which increases the content of total phosphorus and total nitrogen in wastewater, and makes water eutrophication after discharge. If the dye wastewater is discharged directly without treatment, it will pose a great threat to the increasingly tense drinking water source. Therefore, the treatment of wastewater can not only reduce or avoid environmental pollution and protect people's health, but also recycle the treat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/04C02F1/28B01J20/30C02F101/32
CPCB01J20/0259B01J20/041C02F1/281C02F2101/32
Inventor 卢鹏胡雪利刘小平傅敏贺有周
Owner CHONGQING TECH & BUSINESS UNIV
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