Ordered mesoporous zirconium phosphate material, preparation method and application thereof to wastewater

A technology of mesoporous phosphoric acid and zirconium phosphate, which is applied in mining wastewater treatment, metallurgical wastewater treatment, chemical instruments and methods, etc., can solve the problems of low adsorption capacity, difficult scale-up production, and high cost, and achieve large adsorption reaction contact area, good App market, easy to reuse effects

Inactive Publication Date: 2018-10-16
NANJING UNIV OF SCI & TECH
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems facing the separation and enrichment of uranyl ions in wastewater are: (1) The material preparation process is complicated, the cost is high, and it is not easy to scale up production, which is not conducive to practical application
(2) Physical adsorption of general adsorbents such as diatomite, zeolite, activated carbon, and bentonite, with low adsorption capacity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ordered mesoporous zirconium phosphate material, preparation method and application thereof to wastewater
  • Ordered mesoporous zirconium phosphate material, preparation method and application thereof to wastewater
  • Ordered mesoporous zirconium phosphate material, preparation method and application thereof to wastewater

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] (1) Preparation of ordered mesoporous zirconium phosphate materials

[0030] The invention provides an application of a mesoporous structure material in the field of uranium-containing wastewater treatment, and it is found that it has strong adsorption performance for uranyl ions in the wastewater and can be used for many times.

[0031] (2) Material performance characterization test

[0032] The materials were characterized by SEM, TEM, XRD, FTIR, BET and XPS.

[0033] (3) Material adsorption performance test

[0034] The adsorption properties of adsorption materials for uranyl ions under different initial concentrations, pH, contact time and the presence of various metal ions, as well as the adsorption kinetic model of materials.

Embodiment

[0036] Preparation of Mesoporous Zirconium Phosphate Materials

[0037] (1) Using sol-gel method and solvent evaporation self-assembly (EISA), add 1.2g of template agent F127 into 13ml of absolute ethanol solvent, heat in an oil bath, control the temperature at 303K, and stir magnetically until clarified.

[0038] (2) Weigh the zirconium source ZroCl of 1.6125g (5mmol) 2 .8H 2 Add the O raw material to the solution in step (1), and stir until it is completely dissolved; 3 ) 3 After dissolving in 2ml of absolute ethanol, slowly add dropwise to the above solution, where P / Zr=0.5-1.0, and magnetically stir for 6h.

[0039] (3) Pour the solution of (2) into a petri dish, cover a layer of plastic wrap on the petri dish and leave a small hole, place it in an oven at 333K for 48 hours, and then place it at 383K for 24 hours to obtain a dry gel that is mesoporous Precursor of zirconium phosphate.

[0040] (4) The above-mentioned precursor xerogel was calcined in a muffle furnace ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
pore sizeaaaaaaaaaa
adsorption capacityaaaaaaaaaa
Login to view more

Abstract

The invention discloses an ordered mesoporous zirconium phosphate material, a preparation method and application thereof to wastewater. A templating agent is used as a structure-directing agent for synthesizing mesoporous zirconium phosphate, so that an ethanol solvent is slowly volatilized, and the zirconium phosphate adopting a three-dimensional space is synthesized by one step; the zirconium phosphate material adopting a mesoporous structure is used as an adsorbent, uranyl ions in a solution are chemically adsorbed under a constant-temperature shaking condition, and the uranyl ions in the wastewater are rapidly complexed with phosphoric acid functional groups on the surface of the material, so that the uranylions are adsorbed more efficiently; the preparation method of the ordered mesoporous zirconium phosphate material is simple and low in cost; the ordered mesoporous zirconium phosphate material can meet the need of treating uranium in the wastewater of a nuclear power plant, anda treated sample is easy to recycle; the ordered mesoporous zirconium phosphate material has a relatively good application market.

Description

technical field [0001] The invention is applied to the environmental protection field of treating radioactive uranium wastewater, and in particular relates to the preparation of mesoporous zirconium phosphate and its use for adsorption and separation of radioactive uranyl ions in wastewater. Background technique [0002] Nuclear energy is a newly developed and utilized energy in modern times. As a relatively clean energy source, nuclear energy has the advantage of high efficiency. Similarly, the radioactive waste produced during the mining and smelting of uranium ore and other mines containing radionuclides not only pollutes the environment on which human beings depend, but also causes waste of resources due to the radionuclides discharged during the production process. [0003] At present, the main mechanism for treating radioactive wastewater is to enrich the radioactive substances in low- and medium-level radioactive wastewater into high-level radioactive wastewater, and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/04B01J20/30C02F1/28C02F103/10C02F103/16
CPCB01J20/048B01J20/28083C02F1/281C02F2101/006C02F2103/10C02F2103/16
Inventor 颜学武廖雅杰李洪李晓山黎皖豪
Owner NANJING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap