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Bentonite Fenton magnetic catalyst and preparation method thereof

A magnetic catalyst, bentonite technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of easy oxidation of magnetism, poor solid-liquid separation effect, The improvement of the dye adsorption effect is not much, and the effects of improving the solid-liquid separation effect, good thermal stability, and improving adsorption are achieved.

Pending Publication Date: 2020-06-09
太原城市职业技术学院
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  • Application Information

AI Technical Summary

Problems solved by technology

Although such a structure improves the separation ability of bentonite to a certain extent, the nano-ferric oxide particles on the surface are easily oxidized and lose part of their magnetic properties. The adsorption effect of the dye is not much improved, and because its magnetism is easily oxidized, the solid-liquid separation effect is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of bentonite Fenton magnetic catalyst, comprising the following steps:

[0032] (1) The mixture of 2.16 grams of ferric chloride hexahydrate, 5.76 grams of sodium acetate and 1.6 grams of polyethylene glycol 200 was uniformly stirred in 60 milliliters of ethylene glycol for 18 minutes;

[0033] (2) 0.5 g of modified bentonite and 1 ml of epichlorohydrin were added to the homogeneous solution; at 43 ° C, the new mixture was continuously stirred for up to 1.5 hours;

[0034] (3) The mixture was transferred to a 100 ml autoclave and heated to 200°C for 9 hours, after which it was cooled to room temperature to form a black solution;

[0035] (4) After filtering, wash the precipitate with distilled water / ethanol (V:V, 1:1), dry it under vacuum at 73°C, and finally obtain the bentonite-Fenton magnetic catalyst.

[0036] After testing, the interlayer spacing of the bentonite Fenton magnetic catalyst is 1.58nm, the pore diameter is 6.85nm, and the pore vol...

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PUM

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Abstract

The invention discloses a bentonite Fenton magnetic catalyst and a preparation method thereof, belonging to the technical field of inorganic functional materials. The bentonite Fenton magnetic catalyst uses modified bentonite as a loading matrix, magnetic ferroferric oxide nanoparticles are loaded, and the ferroferric oxide nanoparticles are loaded between layers and in pores of the modified bentonite. According to the invention, the modified bentonite is used as a main body and loaded with the magnetic ferroferric oxide nanoparticles, and preparation process parameters are researched, so theprepared bentonite Fenton magnetic catalyst has a loose pore diameter structure, and the inner surface layer and the outer surface layer of the catalyst are expanded; and thus, removal effect on methyl orange is improved, and adsorption of the methyl orange is facilitated.

Description

technical field [0001] The invention relates to the technical field of inorganic functional materials, in particular to a bentonite Fenton magnetic catalyst and a preparation method thereof. Background technique [0002] In recent years, the rapid development of my country's textile printing and dyeing industry has produced a large amount of dye wastewater that needs to be treated urgently. General chemical dyes often have the characteristics of acid resistance, alkali resistance, and refractory degradation, which affect the genetic inheritance of aquatic animals and plants, seriously threaten their survival, and may also threaten human life. [0003] Bentonite (Bentonite), as one of the abundant clay mineral resources in my country, is cheap and has great development, utilization and research value. Bentonite is mainly composed of hydrous layered aluminosilicate, and its basic properties are determined by the special structure of montmorillonite. The structure of montmori...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J35/00B01J35/10B01J20/12B01J20/28B01J20/30
CPCB01J23/745B01J20/12B01J20/08B01J20/28009B01J35/33B01J35/635B01J35/633B01J35/647
Inventor 原林虎原申惠杨志家谢振芳周树勇刘吉太陈超
Owner 太原城市职业技术学院
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