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Preparation of propyl amine bonding bagasse and application of propyl amine bonding bagasse on adsorbing Cd2+in water

A propylamine, bagasse technology, applied in adsorption water/sewage treatment, other chemical processes, water/sewage treatment, etc., can solve unseen problems

Inactive Publication Date: 2014-05-21
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are no reports on the bonding of propylamines to bagasse cellulose, nor the use of silylation reactions to bond groups to plant cellulose.

Method used

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  • Preparation of propyl amine bonding bagasse and application of propyl amine bonding bagasse on adsorbing Cd2+in water
  • Preparation of propyl amine bonding bagasse and application of propyl amine bonding bagasse on adsorbing Cd2+in water
  • Preparation of propyl amine bonding bagasse and application of propyl amine bonding bagasse on adsorbing Cd2+in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] 1. Experimental part

[0023] 1.1 Main instruments and reagents

[0024] (1) Instrument

[0025] E7HOS A microwave digestion instrument (Italy); UV spectrophotometer (Shimadzu Corporation); VIS-723G visible light spectrophotometer; 101-2-BS-Ⅱ oven (Shanghai Yuejin Medical Instrument Co., Ltd.); magnetic stirrer (Tianjin City Bobst Instrument Co., Ltd.); pHS-3B pH meter (Shanghai Leici Instrument Factory); Chinese herbal medicine pulverizer.

[0026] (2) Reagents

[0027] 1) Cd 2+ Configuration of simulated wastewater stock solution: Accurately weigh Cd(NO 3 ) 2 4H 2 Dissolve 1.376 g of O (A.R., Xilong Chemical Factory, Shantou City, Guangdong Province) in a beaker, transfer to a 500 mL volumetric flask, add water to dilute to the mark, and shake well. The resulting solution concentration was 1 mg / mL.

[0028] 2) 0.1% xylenol orange aqueous solution: Accurately weigh 0.1 g of xylenol orange (A.R., Tianjin Institute of Chemical Reagents) and dissolve it in 100 mL ...

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Abstract

The invention discloses preparation of propyl amine bonding bagasse by using a 3-aminopropyl trimethoxysilane reagent and bagasse cellulose to conduct a silanization reaction to successfully bond propylnitramine on the bagasse cellulose. A static adsorption test is adopted, an adsorptive property of propylnitramine bonded bagasse on the Cd2+ is studied, and results indicate that appropriate adsorption pH scope of the propylnitramine bonded bagasse on the Cd2+ is 3-7, adsorption equilibrium time is 8h, and a langmuir adsorption isotherm can be used for describing at the room temperature of 20 DEG C and 40 DEG C. The maximum adsorbing capacity of the propylnitramine bonded bagasse on the Cd2+ at the room temperature is 17.36mg / g, and the maximum adsorbing capacity of the propylnitramine bonded bagasse on the Cd2+ at the temperature of 40 DEG C is 21.05mg / g. The maximum adsorbing capacity is obviously higher than the maximum adsorbing capacity of the bagasse cellulose and activated carbon on the Cd2+. Therefore, the propylnitramine bonded bagasse can serve as a heavy metal ion trapping agent for use.

Description

technical field [0001] The present invention relates to the preparation of modified bagasse cellulose, specifically the preparation of propylamine-bonded bagasse and its absorption of Cd in water 2+ Applications Background technique [0002] my country is the third largest sugarcane planting country in the world after Brazil and India. Bagasse has a wide range of sources, low price and easy regeneration. The components of bagasse are mainly cellulose, hemicellulose and lignin, and the cellulose content is about 44%~46%. At present, a very small part of bagasse is used for paper making or burned as fuel, with little added value, and most of the bagasse is treated as waste, which poses a potential threat to the environment. [0003] Cellulose molecules contain many hydrophilic groups—hydroxyl groups. It is a fibrous, multi-capillary natural polymer with the characteristics of porous and large specific surface area. It has certain adsorption properties and can be used as an i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/62
Inventor 梁英李茂永潘英明杜伟李学军许睿
Owner GUILIN UNIV OF ELECTRONIC TECH