Zinc oxide silicon-based pillared illite-montmorillonite clay composite material as well as preparation method and application thereof

A technology of imonic clay and composite adsorption material, which is applied in the field of zinc oxide silicon-based pillared imonic clay composite material and preparation thereof, can solve the problems of limited adsorption capacity of imonic clay, influence on the removal effect of Rhodamine B, and the like, and achieves the preparation of The process is easy to control, the value of industrial utilization is high, and the effect of low environmental pollution

Pending Publication Date: 2022-04-01
GUANGXI TEACHERS EDUCATION UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adsorption capacity of Imon clay is very limited, which affects the removal effect of rhodamine B in wastewater.

Method used

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  • Zinc oxide silicon-based pillared illite-montmorillonite clay composite material as well as preparation method and application thereof
  • Zinc oxide silicon-based pillared illite-montmorillonite clay composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The invention relates to a composite adsorption material of zinc oxide silicon-based pillared imonite clay, comprising: zinc oxide and silicon-based pillared imonite clay.

[0032] The Yimeng clay in this example is taken from Guangxi Fangchenggang Strong Building Materials Co., Ltd. The clay is formed by stacking silicon-oxygen tetrahedrons and aluminum-oxygen octahedrons in 1:1 and 2:1 patterns, with -OH between layers. 、Al 3+ 、K + 、Na + Plasma; its specific surface area, average pore diameter, and total pore volume are 40.9m 2 / g, 11.4nm, 0.1166cm 3 / g. The water in this example is distilled water, and the specifications of other medicines used in this example are analytically pure.

Embodiment 2

[0034] The invention relates to a composite adsorption material of zinc oxide silicon-based pillared imonite clay, comprising: zinc oxide and silicon-based pillared imonite clay.

[0035] The preparation method of zinc oxide silicon-based pillared Imon clay composite adsorption material comprises the following steps:

[0036] Step 1. Mix and stir the imonite clay, sodium carbonate, and distilled water at room temperature for 24 hours to obtain a sodium-modified imonite clay suspension;

[0037] Step 2, mixing absolute ethanol, (16% by mass fraction) hydrochloric acid, and tetraethyl silicate and sealing and aging at room temperature for 1 hour to obtain a silicon-based columnar agent;

[0038] Step 3. Add the silicon-based columning agent dropwise to the sodium-modified Imond clay suspension under the condition of stirring at a temperature of 50°C (a constant-pressure dropping funnel is used for the dropwise addition), and continue stirring for 3 hours after the dropwise addit...

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Abstract

The invention discloses a zinc oxide silicon-based pillared illite-montmorillonite clay composite adsorption material which comprises zinc oxide and silicon-based pillared illite-montmorillonite clay. The preparation method of the zinc oxide silicon-based pillared illite-montmorillonite clay composite adsorption material comprises the following steps: step 1, mixing and stirring illite-montmorillonite clay, sodium carbonate and distilled water to obtain a sodium modified illite-montmorillonite clay suspension; 2, absolute ethyl alcohol, hydrochloric acid and tetraethyl silicate are mixed and aged, and a silicon-based pillared agent is obtained; step 3, dropwise adding a silicon-based pillared agent into the sodium modified illite-montmorillonite clay suspension to obtain silicon-based pillared illite-montmorillonite clay; 4, distilled water and ethidene diamine are mixed, the silicon-based pillared illite-montmorillonite clay, zinc nitrate and sodium hydroxide are added, stirring and ultrasonic treatment are conducted, and the zinc oxide silicon-based pillared illite-montmorillonite clay composite adsorption material is obtained. The silicon-based pillared illite-montmorillonite clay and the zinc oxide are cross-linked, so that the problem that the adsorption capacity of rhodamine B is low when the illite-montmorillonite clay or the zinc oxide is singly used is avoided, and the adsorption capacity of the adsorption material is improved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment. More specifically, the present invention relates to a zinc oxide-silicon-based pillared Imon clay composite material and its preparation method and application. Background technique [0002] Water pollution is a serious challenge facing the world today. How to treat refractory pollutants (such as organic dyes) in wastewater economically and environmentally friendly has become a research hotspot for scientists. Rhodamine B (RhB) is a synthetic organic xanthene dye widely used in textile, paint, leather and paper industries. However, Rhodamine B, as a triphenylmethane derivative, has good water solubility, is easy to analyze, and has a strong representativeness. It is very toxic to organisms when it is directly discharged into water. It was found through experiments on mice that Rhodamine B can cause subcutaneous Histogenic sarcoma, suspected carcinogen. Rhodamine B is not only har...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/12B01J20/30C02F1/28C02F101/34C02F101/36C02F101/38
Inventor 韦良李莉杨晶汪颉杨显德张宏喜韦志赢
Owner GUANGXI TEACHERS EDUCATION UNIV
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