CN106179256A

CN106179256A - A kind of technique utilizing Folium fici microcarpae modification to prepare adsorbent

Info

Publication number: CN106179256A
Application number: CN201610763212.4A
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 discloses a kind of technique utilizing Folium fici microcarpae modification to prepare adsorbent.This technique is: takes a certain amount of Firmiana platanifolia (Linn. f.) Marsili fresh leaf clear water and soaks, cleans dedusting, then dry to constant weight, and pulverizes, sieves, collect powder, then mix fully reaction with isopropanol, reacted mixture is filtered, clean, be dried, alkalize by NaOH solution the most again, again filter, 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.

Description

A kind of technique utilizing Folium fici microcarpae modification 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 technique, belong to adsorbing material field.

Background technology

Along with developing rapidly of process of industrialization, heavy metal wastewater thereby gets more and more, and in waste water, various harmful materials pass through Water body is enriched in biological chain, eventually enters into human body, destroys normal physiological metabolism activity, very harmful to organism.

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, has preferable application prospect.

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 one and utilizes Folium fici microcarpae modification to prepare adsorbent.This preparation technology is by techniques below route Realize:

(1) select a certain amount of Folium fici microcarpae 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) collect powder, then powder is poured into the isopropanol of certain solubility, and be stirred continuously and make 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；

The most environmentally friendly, not secondary pollution.

Detailed description of the invention

Embodiment one:

Select a certain amount of Folium fici microcarpae clear water to soak, clean and remove earth and dust, then clean with distilled water, be then placed in 50 Baking oven under the conditions of DEG C is carried out dry to constant weight, then the leaves pulverizer dried is pulverized, cross 200 mesh sieves, weigh 10g powder End is put in a container, then is 20% isopropanol toward pouring solubility in container, and is stirred continuously and makes it fully react, after 12 hours Being filtered by solution, 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 20 After hour, 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 Being filtered by solution after hour, and be carried out with distilled water, wash products is placed in the drying baker under the conditions of 40 DEG C and dries, After drying 20 hours, dry product and be reentered in container, then pour the citric acid solution of 0.5mol/L into, stirring reaction 4 hours After solution is filtered, and be carried out to solution being neutral with distilled water, be finally placed in the drying baker under the conditions of 40 DEG C and carry out Dry, after drying 20 hours a kind of modified adsorbent.

Embodiment two:

Select a certain amount of Folium fici microcarpae clear water to soak, clean and remove earth and dust, then clean with distilled water, be then placed in 55 Baking oven under the conditions of DEG C is carried out dry to constant weight, then the leaves pulverizer dried is pulverized, cross 100 mesh sieves, weigh 20g powder End is put in a container, then is 20% isopropanol toward pouring solubility in container, and is stirred continuously and makes it fully react, after 13 hours Being filtered by solution, 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 15 After hour, 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 Being filtered by solution after hour, and be carried out with distilled water, wash products is placed in the drying baker under the conditions of 50 DEG C and dries, After drying 15 hours, dry product and be reentered in container, then pour the citric acid solution of 1mol/L into, after stirring is reacted 2 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 50 DEG C and dry Dry, after drying 15 hours a kind of modified adsorbent.

Embodiment three:

Select a certain amount of Folium fici microcarpae clear water to soak, clean and remove earth and dust, then clean with distilled water, be then placed in 60 Baking oven under the conditions of DEG C is carried out dry to constant weight, then the leaves pulverizer dried is pulverized, cross 100 mesh sieves, weigh 20g powder End is put in a container, then is 20% isopropanol toward pouring solubility in container, and is stirred continuously and makes it fully react, after 15 hours Being filtered by solution, 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 10 After hour, 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 Being filtered by solution after hour, and be carried out with distilled water, wash products is placed in the drying baker under the conditions of 60 DEG C and dries, After drying 10 hours, dry product and be reentered in container, then pour the citric acid solution of 1mol/L into, after stirring is reacted 2 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 60 DEG C and dry Dry, 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.