CN106179255A

CN106179255A - A kind of method utilizing the fresh leaf of plant Firmiana platanifolia (Linn. f.) Marsili to prepare adsorbent

Info

Publication number: CN106179255A
Application number: CN201610761302.XA
Authority: CN
Inventors: 黄汉龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2016-12-07

Abstract

The present invention is to provide a kind of method utilizing the fresh leaf of plant Firmiana platanifolia (Linn. f.) Marsili to prepare adsorbent.The method is first to select the immersion of appropriate Firmiana platanifolia (Linn. f.) Marsili fresh leaf clear water, cleaning dedusting, distillation is rinsed, place into and baking oven is carried out dry to constant weight, again by pulverizing, sieving, collect powder, and pour the isopropanol of certain solubility into, it is stirred continuously, fully filters after reaction, clean again, drying baker, alkalize by NaOH solution again, filter after reaction, clean, dry, drying product is fully reacted with citric acid solution, fully clean with distilled water after reaction, when clean to solution be neutrality, filter, after drying a kind of modified adsorbent.The method technique journey is simple, and production efficiency is high and environmentally friendly, not secondary pollution, has preferable application prospect.

Description

A kind of method utilizing the fresh leaf of plant Firmiana platanifolia (Linn. f.) Marsili to prepare adsorbent

Technical field

The present invention relates to a kind of adsorbent, particularly to one using plant leaf blade as raw material, a kind of suction of modified preparation Attached dose and method, belong to adsorbing material field.

Background technology

In recent decades, along with developing rapidly of process of industrialization, from mine, smelt, be electrolysed, electroplate, pesticide, doctor The heavy metal wastewater thereby that the enterprises such as medicine, paint, pigment produce gets more and more, and in waste water, various harmful materials are enriched to through water body In biological chain, eventually enter into human body, destroy normal physiological metabolism activity, heavy metal can not biodegradation, the danger to organism Greatly, its hazardness causes the concern of countries in the world environment scholar to evil, the lattice so the process of heavy metal pollutant effluents seems Outer urgent.

The technique that efficiently separates being presently used for removing heavy metal ions in sewage has: at the exchange of precipitation, ion, electrochemistry Reason, membrane technology, evaporation coagulation, reverse osmosis and electrodialysis etc., but the application of these technology is limited, closely by technique and economy sometimes Over Nian, organism absorption by living is removed the method for heavy metal and has been caused concern, this method mainly utilize hyperaccumulative plant, Algae and microorganism heavy metal have bigger absorbability to remove the heavy metal in waste water, but process dirt with the organism lived Water is limited by Biomass and the growth characteristics of organism itself, and such method is also unsuitable for applying on a large scale the most so far. Modified cellulose class adsorbent is one of important development direction of current cellulose functional high molecule material.Such adsorbent does not draws Entering new pollutant, consume energy low, so there being important application in water processes, and being more easy to regeneration than adsorbent resin again, and Stability is high, and adsorptive selectivity is special, and adsorbent price is far below adsorbent resin.

Use Folium firmianae to prepare a kind of Land use systems that adsorbent is abandoned biomass resource, and can realize utilizing one useless Abandon the problem that biomass resource is curbed environmental pollution.The present invention is using Folium firmianae as raw material, in isopropanol, NaOH solution With under the effect of citric acid solution, modification is prepared as a kind of biomass adsorbent, and this enclosure material can be used for waste water and processes, reach with Giving up, it is useless to control, it is achieved the unification of economic benefit, social benefit and environmental benefit.

Summary of the invention

The present invention is to provide a kind of method utilizing the fresh leaf of plant Firmiana platanifolia (Linn. f.) Marsili to prepare adsorbent.This preparation method is by following Technology path realizes:

(1) select appropriate Firmiana platanifolia (Linn. f.) Marsili fresh leaf clear water to soak, clean and remove earth and dust, then clean with distilled water and put into baking Case is carried out dry to constant weight；

(2) the leaves pulverizer dried is pulverized, sieve；

(3) with a container collection powder, then toward container is poured into the isopropanol of certain solubility, and it is stirred continuously and makes it fully react；

(4) being filtered by solution, and be carried out with distilled water, wash products is placed in drying baker and dries；

(5) dry product to be reentered in container, then pour the NaOH solution of certain solubility into, and be stirred continuously and make it fully react；

(6) being filtered by solution, and be carried out with distilled water, wash products is placed in drying baker and dries；

(7) dry product to be reentered in container, then pour the citric acid solution of certain solubility into, and be stirred continuously and make it the most anti- Should；It is neutral that the most last distilled water is washed till solution, and filters, after drying a kind of modified adsorbent.

Preferentially, step (1) in, dry temperature be 50-60 DEG C.

Preferentially, step (2) in, the mesh number of sieve is 100-200 mesh.

Preferentially, step (3) in, the solubility of isopropanol is 20%, and the response time is 12-15 hour.

Preferentially, step (4), (6), (8) in, dry temperature conditions be at 40-60 DEG C, drying time is 10-20 hour.

Preferentially, step (5) in, the solubility of NaOH is 0.1-0.5mol/L, and the response time is 1-2 hour.

First ground, step (7) in, the solubility of citric acid is 0.5-1mol/L, and the response time is 2-4 hour.

The present invention has following advantages and a characteristic:

(1) abundant raw material source, with low cost；

(2) technique journey is simple, and production efficiency is high；

The most environmentally friendly, not secondary pollution.

Detailed description of the invention

Embodiment one:

Select appropriate Folium firmianae clear water to soak, clean and remove earth and dust, then clean with distilled water, be then placed in 50 DEG C Under the conditions of baking oven in carry out drying to constant weight, then the leaves pulverizer that will dry is pulverized, and crosses 200 mesh sieves, weighs 10g powder Put in a container, then be 20% isopropanol toward solubility poured into by container, and be stirred continuously and make it fully react, will after 12 hours Solution filters, and is carried out with distilled water, and wash products is placed in the drying baker under the conditions of 40 DEG C and dries, and dries 20 little Shi Hou, drying object is reentered in container, then pours the NaOH solution of 0.1mol/L into, and is stirred continuously and makes it fully react, and 2 is little Being filtered by solution time after, and be carried out with distilled water, wash products is placed in the drying baker under the conditions of 40 DEG C and dries, and dries After dry 20 hours, dry product and be reentered in container, then pour the citric acid solution of 0.5mol/L into, after stirring is reacted 4 hours Solution is filtered, and is carried out to solution being neutral with distilled water, be finally placed in the drying baker under the conditions of 40 DEG C and dry Dry, after drying 20 hours a kind of modified adsorbent.

Embodiment two:

Select appropriate Folium firmianae clear water to soak, clean and remove earth and dust, then clean with distilled water, be then placed in 55 DEG C Under the conditions of baking oven in carry out drying to constant weight, then the leaves pulverizer that will dry is pulverized, and crosses 100 mesh sieves, weighs 20g powder Put in a container, then be 20% isopropanol toward solubility poured into by container, and be stirred continuously and make it fully react, will after 13 hours Solution filters, and is carried out with distilled water, and wash products is placed in the drying baker under the conditions of 50 DEG C and dries, and dries 15 little Shi Hou, drying object is reentered in container, then pours the NaOH solution of 0.5mol/L into, and is stirred continuously and makes it fully react, and 1 is little Being filtered by solution time after, and be carried out with distilled water, wash products is placed in the drying baker under the conditions of 50 DEG C and dries, and dries After dry 15 hours, drying product and be reentered in container, then pour the citric acid solution of 1mol/L into, stirring will after reacting 2 hours Solution filters, and is carried out to solution being neutral with distilled water, is finally placed in the drying baker under the conditions of 50 DEG C and dries, After drying 15 hours a kind of modified adsorbent.

Embodiment three:

Select appropriate Folium firmianae clear water to soak, clean and remove earth and dust, then clean with distilled water, be then placed in 60 DEG C Under the conditions of baking oven in carry out drying to constant weight, then the leaves pulverizer that will dry is pulverized, and crosses 100 mesh sieves, weighs 20g powder Put in a container, then be 20% isopropanol toward solubility poured into by container, and be stirred continuously and make it fully react, will after 15 hours Solution filters, and is carried out with distilled water, and wash products is placed in the drying baker under the conditions of 60 DEG C and dries, and dries 10 little Shi Hou, drying object is reentered in container, then pours the NaOH solution of 0.5mol/L into, and is stirred continuously and makes it fully react, and 1 is little Being filtered by solution time after, and be carried out with distilled water, wash products is placed in the drying baker under the conditions of 60 DEG C and dries, and dries After dry 10 hours, drying product and be reentered in container, then pour the citric acid solution of 1mol/L into, stirring will after reacting 2 hours Solution filters, and is carried out to solution being neutral with distilled water, is finally placed in the drying baker under the conditions of 60 DEG C and dries, After drying 10 hours a kind of modified adsorbent.

Claims

1. an adsorbent, it is characterised in that the preparation method of this adsorbent comprises the steps:

(2) the leaves pulverizer dried is pulverized, sieve；

A kind of adsorbent the most according to claim 1, it is characterised in that step (1) in, dry temperature and be 50-60 DEG C.

A kind of adsorbent the most according to claim 1, it is characterised in that step (2) in, the mesh number of sieve is 100-200 mesh.

A kind of adsorbent the most according to claim 1, it is characterised in that step (3) in, the solubility of isopropanol is 20%, instead It is 12-15 hour between Ying Shi.

A kind of adsorbent the most according to claim 1, it is characterised in that step (4), (6), (8) in, drying temperature conditions is At 40-60 DEG C, drying time is 10-20 hour.

A kind of adsorbent the most according to claim 1, it is characterised in that step (5) in, the solubility of NaOH is 0.1- 0.5mol/L, the response time is 1-2 hour.

A kind of adsorbent the most according to claim 1, it is characterised in that step (7) in, the solubility of citric acid is 0.5- 1mol/L, the response time is 2-4 hour.