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A kind of preparation method of grapefruit peel/attapulgite composite material

A composite material, attapulgite technology, used in chemical instruments and methods, water/sewage treatment, adsorbed water/sewage treatment, etc.

Active Publication Date: 2022-03-04
SOUTHWEAT UNIV OF SCI & TECH
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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 grapefruit peel / attapulgite composites

Method used

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  • A kind of preparation method of grapefruit peel/attapulgite composite material
  • A kind of preparation method of grapefruit peel/attapulgite composite material
  • A kind of preparation method of grapefruit peel/attapulgite composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A kind of preparation method of pomelo peel / attapulgite composite material, its main steps are as follows:

[0030] First, the washed and dried Shatian pomelo peel powder was added to the H 5 IO 6 The solution was stirred at room temperature for 1 h, ultrasonically dispersed for 5 min, washed with water until neutral, dried and ground to obtain activated pomelo peel for later use. Then take 4.0 g attapulgite original soil at 200 o After activation at C for 3 h, add 0.4 g KH-560 modifier, and o Stir and reflux at C for 2 h, then ultrasonically disperse for 5 min, wash with water, saturated KCl solution, and water at 50 o C drying to obtain modified attapulgite. Finally, transfer 0.1 g of the modified attapulgite to a beaker, add 30 mL of water, and ultrasonically disperse for 1 h to obtain the attapulgite suspension. Add 1.0 g of activated pomelo peel powder to the attapulgite suspension and ultrasonically disperse for 10 min. After 10 h, suction filtration, washing...

Embodiment 2

[0032] A kind of preparation method of pomelo peel / attapulgite composite material, its main steps are as follows:

[0033] First, the washed and dried Pingshan pomelo and Jinlan pomelo pomelo peel powder mixture was added to the H 5 IO 6 The solution was stirred at room temperature for 1.5 h, ultrasonically dispersed for 5 min, washed with water until neutral, dried and ground to obtain activated pomelo peel for future use. Then take 4.0 g attapulgite original soil at 200 o After activation at C for 3 h, add 0.8 g of KH-560 and KH-570 mixed modifiers, and o Stir and reflux at C for 2.5 h, then ultrasonically disperse for 5 min, wash with water, saturated NaCl solution, and water at 50 o C drying to obtain modified attapulgite. Finally, transfer 0.2 g of the modified attapulgite to a beaker, add 50 mL of water, and ultrasonically disperse for 1 h to obtain the attapulgite suspension. Add 0.8 g of activated pomelo peel powder to the attapulgite suspension and ultrasonically ...

Embodiment 3

[0035] A kind of preparation method of pomelo peel / attapulgite composite material, its main steps are as follows:

[0036] First, the washed and dried Anjiang pomelo peel powder was added to NaOH solution, stirred at room temperature for 1 h, ultrasonically dispersed for 20 min, washed with water until neutral, then dried and ground to obtain activated pomelo peel for use. Then take 4.0 g attapulgite original soil at 300 o After activation at C for 2 h, add 1.0 g KH-550 modifier, and o Stir and reflux at C for 3 h, then ultrasonically disperse for 20 min, wash with water, saturated NaCl solution, and water at 70 oC drying to obtain modified attapulgite. Finally, transfer 0.3 g of modified attapulgite to a beaker, add 60 mL of water, and ultrasonically disperse for 1.5 h to obtain an attapulgite suspension. Add 0.7 g of activated pomelo peel powder to the attapulgite suspension and ultrasonically disperse for 20 min. After 12 h, suction filtration, washing and drying were ca...

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Abstract

The invention provides a preparation method of grapefruit peel / attapulgite composite material. The preparation method is as follows: first, the modified attapulgite is dispersed by ultrasonic equipment to obtain an attapulgite suspension, and then the activated grapefruit peel is added to the attapulgite suspension for ultrasonic dispersion to obtain a mixed suspension; the mixed suspension is further stirred, Suction filtration, washing, and drying the filter cake to obtain the grapefruit peel / attapulgite composite material. The invention prepares a high-efficiency environment-friendly adsorbent by using cheap and easy-to-obtain pomelo peel and attapulgite as raw materials, and provides a low-cost, simple and easy-to-operate preparation method. The method of the invention has the advantages of high adsorption performance, easy separation and simple synthesis method.

Description

technical field [0001] The invention belongs to the technical field of composite materials and the technical field of wastewater treatment, and in particular relates to a preparation method and application of a composite material. Background technique [0002] Pomelo peel is a kind of biomass with three-dimensional pore structure, accounting for about 30% of pomelo fruit mass, with high porosity and rough surface. Studies have shown (P. Methacanon, J. Krongsin, C. Gamonpilas, Food Hydrocoll. 2014, 35, 383-391.), the surface of grapefruit peel contains a large number of active functional groups, such as hydroxyl and carboxyl groups, which can combine with heavy metal ions through ion exchange and complexation. Regardless of its physical structure or chemical composition, grapefruit peel is a good adsorption material. Zhu et al. (J. Zhu, Q. Liu, Z. Li, J. Liu, Dalton. Trans. 2017,46 (2), 420–429.) reported that U(Ⅵ) was removed from pomelo peel biochar by alkali activation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20
CPCB01J20/24C02F1/286B01J2220/4825C02F2101/20
Inventor 邓秋林黄晓枫邓洪权王行章
Owner SOUTHWEAT UNIV OF SCI & TECH
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