Lignosulfonate-silicon dioxide mesoporous nanosphere and preparation method thereof

A technology of lignosulfonate and silica, which is applied in the fields of botanical equipment and methods, nanotechnology, nanotechnology, etc., can solve problems such as unreported research, achieve simple preparation process, improve use efficiency, and easy to control Effect

Inactive Publication Date: 2018-03-09
LUOYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the preparation of mesoporous nanosphere materials by combining lignosulfonate and silica

Method used

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  • Lignosulfonate-silicon dioxide mesoporous nanosphere and preparation method thereof
  • Lignosulfonate-silicon dioxide mesoporous nanosphere and preparation method thereof
  • Lignosulfonate-silicon dioxide mesoporous nanosphere and preparation method thereof

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Effect test

Embodiment 1

[0026] The preparation method of lignosulfonate-silicon dioxide mesoporous nanospheres of this embodiment comprises the following steps:

[0027] 1) get 120g sodium lignosulfonate (NaLS), be dissolved in water, be mixed with the NaLS aqueous solution that mass percent is 60%;

[0028] 2) Take ethanol, and prepare ethanol / water mixture according to the mass ratio of ethanol and water of 2:1; take cetyltrimethylammonium bromide (CTAB), dissolve it in ethanol / water mixture to prepare 50% CTAB solution;

[0029] 3) Mix the NaLS aqueous solution in step 1) with the CTAB solution in step 2) according to a mass ratio of 2.35:1, stir at room temperature for 10 minutes at a stirring speed of 700 r / min, and then let stand for 1 hour to obtain NaLS / CTAB composite system;

[0030] 4) Take 0.1g of the NaLS / CTAB composite system in step 3), dissolve it in 20g of ethanol, and prepare a mass concentration of 5.0mg.g -1The ethanol solution of the NaLS / CTAB complex, take 6g of the ethanol so...

Embodiment 2

[0033] The preparation method of lignosulfonate-silicon dioxide mesoporous nanospheres of this embodiment comprises the following steps:

[0034] 1) get 120g potassium lignosulfonate (KLS), be dissolved in water, be mixed with the KLS aqueous solution that mass percent is 70%;

[0035] 2) Take isopropanol, and prepare isopropanol / water mixture according to the mass ratio of isopropanol to water at 3:1; take dodecyltrimethylammonium chloride (DTAC), dissolve it in isopropanol It is 50% DTAC solution that the mass percent is prepared in the water / water mixture;

[0036] 3) Mix the KLS aqueous solution in step 1) with the DTAC solution in step 2) according to the mass ratio of 2.82:1, stir at room temperature for 8 minutes, the stirring speed is 800r / min, and then stand still for 0.5h to obtain KLS / DTAC composite system;

[0037] 4) Take 0.06g of the KLS / DTAC composite system in step 3), dissolve it in 20g of isopropanol, and prepare a mass concentration of 3.0mg.g -1 The isop...

Embodiment 3

[0040] The preparation method of lignosulfonate-silicon dioxide mesoporous nanospheres of this embodiment comprises the following steps:

[0041] 1) get 120g sodium lignosulfonate (NaLS), be dissolved in water, be mixed with the NaLS aqueous solution that mass percent is 50%;

[0042] 2) Take isopropanol, and prepare isopropanol / water mixture according to the mass ratio of isopropanol and water at 1:1; take cetyltrimethylammonium bromide (CTAB), dissolve it in isopropanol It is 40% CTAB solution that mass percentage is prepared into in the water / water mixture;

[0043] 3) Mix the NaLS aqueous solution in step 1) with the CTAB solution in step 2) according to a mass ratio of 1.88:1, stir at room temperature for 15 min at a stirring speed of 750 r / min, and then let stand for 0.5 h to obtain NaLS / CTAB composite system;

[0044] 4) Take 0.12g of the NaLS / CTAB composite system in step 3), dissolve it in 20g of isopropanol, and prepare a mass concentration of 6.0mg.g -1 The isopr...

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Abstract

The invention relates to a lignosulfonate-silicon dioxide mesoporous nanosphere and a preparation method thereof. The preparation method comprises preparing a lignosulfonate aqueous solution and a short-chain alcohol / water mixture; dissolving quaternary ammonium salt cationic surface active agent into the short-chain alcohol / water mixture to prepare a quaternary ammonium salt cationic surface active agent solution; mixing the lignosulfonate aqueous solution with the quaternary ammonium salt cationic surface active agent solution to obtain a lignosulfonate / quaternary ammonium salt cationic surface active agent compound system; dissolving the lignosulfonate / quaternary ammonium salt cationic surface active agent compound system into short-chain alcohol to prepare a lignosulfonate / quaternary ammonium salt cationic surface active agent compound short-chain alcohol solution, then adding in tetraethoxysilane, dropwise stirring in ammonium hydroxide and keeping stirring to obtain the lignosulfonate-silicon dioxide mesoporous nanosphere. The lignosulfonate-silicon dioxide mesoporous nanosphere is good in compatibility, degradable, capable of achieving antioxidant and good ultraviolet-absorbing properties, and meanwhile large in specific surface area.

Description

technical field [0001] The invention belongs to the technical field of silica mesoporous materials, and in particular relates to a lignosulfonate-silica mesoporous nanosphere and a preparation method thereof. Background technique [0002] In recent years, the shortage of petroleum resources and the increasingly serious problem of environmental pollution have increased the demand for renewable resources in various industrial fields. The production of "environmentally friendly" green products and the development of green chemical processes have become the frontier and hot spot of current chemistry and chemical research . As the second most abundant natural polymer compound in nature, lignin has attracted widespread attention. Lignosulfonate is a typical lignin derivative, which mainly comes from the traditional sulfite pulping process, and has the advantages of low price, sufficient source and environmental friendliness. It is generally considered that lignosulfonate is an a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/08A01N25/22A01N25/28A01N43/90C05G3/00B82Y30/00
CPCA01N25/08A01N25/22A01N25/28A01N43/90B82Y30/00C05G5/30
Inventor 汤潜潜乔晓光王素军
Owner LUOYANG NORMAL UNIV
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