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A kind of preparation method and application of high-efficiency adsorption material of bisphenol compounds

A technology for adsorbing materials and compounds, applied in chemical instruments and methods, adsorbed water/sewage treatment, water pollutants, etc. The effect of low cost, fast adsorption rate and high porosity

Active Publication Date: 2021-06-15
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent "A Bisphenol A Adsorbent Material and Its Preparation Method and Its Application" has developed an adsorption material only for bisphenol A, but in actual analysis, multiple bisphenol compounds often coexist, which cannot meet the requirements of simultaneous extraction. , enrichment requirements; and the preparation of composite graphene / polyaniline / polyaminobenzyl alcohol needs to use relatively expensive graphene, which increases the cost of sample analysis to a certain extent

Method used

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  • A kind of preparation method and application of high-efficiency adsorption material of bisphenol compounds
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  • A kind of preparation method and application of high-efficiency adsorption material of bisphenol compounds

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Embodiment 1

[0039] In order to obtain the adsorption material with the best performance, this study first optimized the composition system of the composite material. The specific parameters are shown in Table 1. The composite material synthesis system was determined as follows: MIL-101 was used as the support carrier, and AM and NIPAM were used as the mixed functional unit. EGDMA was used as the cross-linking agent, AIBN was used as the initiator, and thermal initiation was adopted; the amount of support carrier MIL-101 and cross-linking agent EGDMA in the polymerization reaction was further optimized;

[0040] (1) Synthesis of hydrophilic organic framework material MIL-101

[0041]Add 0.2g of chromium nitrate nonahydrate, 0.8g of terephthalic acid and 50μL of 40% hydrofluoric acid into 50 mL of aqueous solution by hydrothermal method, dissolve and mix evenly, transfer to a 75 mL autoclave, o C was heated for 8 h, cooled to room temperature, washed three times with ultrapure water, centri...

Embodiment 2

[0046] To better understand the performance of the adsorption material provided by the present invention, infrared spectroscopy, X-ray diffraction, and electronic Scanning electron microscope characterization, thermogravimetric analysis and adsorption performance test.

[0047] figure 2 It is the Fourier transform infrared spectrum of MIL-101 and MIL-101@P(NIPAM-co-AM), compared with MIL-101 (a), picture (b) MIL-101@P(NIPAM-co-AM ) in the infrared spectrum, 1720 cm -1 The strong absorption peak at 1540 cm is the characteristic peak of C=O in primary amides -1 Appeared amide type II absorption peak, 877 cm -1 Caused by N-H out-of-plane deformation vibrations in primary amine groups, proving the existence of AM; 1380 cm -1 and 1460 cm -1 CH in NIPAM 3 The asymmetric bending vibration of the group is caused, thus confirming that NIPAM and AM have successfully realized the cross-linking polymerization on the surface of MIL-101.

[0048] image 3 It is the X-ray diffractio...

Embodiment 3

[0055] Optimization of composite material composition system (as shown in Table 1). The adsorption of synthetic polymers to target substances under the three combination systems of AM as functional monomer, AM and NIPAM as mixed functional monomer, and support carrier MIL-101 were respectively investigated. It can be seen from Table 1 that the adsorption amount was the highest The optimal polymer synthesis system is as follows: MIL-101 is used as a support carrier, and AM and NIPAM are used as mixed functional monomers. And optimize the addition amount of MIL-101 and EGDMA in the system, the result is as follows figure 1 As shown, AM and NIPAM are used as mixed functional monomers, dissolved in DMSO solvent, the amount of MIL-101 is 40 mg, and the amount of cross-linking agent (10, 15, 20 mmol) is optimized, and the optimal amount is 15 mmol, the adsorption capacity is the highest at this time. Under this condition, the amount of support carrier (10, 20, 30, 40, 50 mg) was f...

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Abstract

The invention belongs to the technical field of preparation technology for adsorption and enrichment materials and detection methods for bisphenol compounds, and relates to a preparation method and application of a high-efficiency adsorption material for bisphenol compounds. The preparation method comprises: fully mixing the mixed functional monomer and the hydrophilic organic framework material in an organic solvent, adding a cross-linking agent and an initiator, deoxidizing, and heating to react to obtain the bisphenol compound adsorbent. composite material. The composite material prepared by the invention has stable chemical properties, good hydrophilicity, high porosity and strong adsorption performance for bisphenol chemicals. The cost of raw materials used in the present invention is low, the material preparation process is simple, the adsorption rate is fast, the adsorption capacity is high, and it is convenient for recycling. As an efficient adsorption material, it can be used for the rapid enrichment and removal of bisphenol compounds in the water environment, and can also be used The extraction agent in the pretreatment process is combined with instrument analysis to establish a highly sensitive detection method for bisphenols.

Description

technical field [0001] The invention belongs to the technical field of preparation technology for adsorption and enrichment materials and detection methods for bisphenol compounds, and relates to a preparation method and application of high-efficiency adsorption materials for bisphenol compounds, in particular to a metal-organic framework@poly(acrylamide-co -N-isopropylacrylamide) composite material and its application in the adsorption, extraction, enrichment, analysis and detection of five bisphenol compounds. Background technique [0002] Bisphenol A is a typical endocrine disruptor. It is commonly used in the industry to synthesize polymer materials such as epoxy resin, polycarbonate, and polyphenylene ether resin. It can also be used in plasticizers, flame retardants, heat stabilizers, and pesticides. , coatings and other fine chemical products. In the 1960s, bisphenol A began to be widely used in the production of food-related containers and packaging materials. Subse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F1/26C02F101/34
CPCB01J20/226C02F1/26C02F1/285C02F2101/345
Inventor 徐龙华江姗姗徐志祥
Owner SHANDONG AGRICULTURAL UNIVERSITY
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