CN105435749A - Cellulose modified adsorbent and preparation technology thereof - Google Patents
Cellulose modified adsorbent and preparation technology thereof Download PDFInfo
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- CN105435749A CN105435749A CN201510951334.1A CN201510951334A CN105435749A CN 105435749 A CN105435749 A CN 105435749A CN 201510951334 A CN201510951334 A CN 201510951334A CN 105435749 A CN105435749 A CN 105435749A
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- suction filtration
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- drying
- distilled water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
Abstract
The invention provides a cellulose modified adsorbent and a preparation technology thereof. The preparation technology comprises the following steps: washing black date leaves, drying black date leaves until the weight is constant, grinding the dried leaves into powder, soaking the powder in isopropanol, washing the powder by distilled water until the powder turns colorless, subjecting the powder to suction filtration, after suction filtration, transferring the powder to a drying box, drying the powder in the drying box, then soaking the powder in a NaOH solution with a certain solubility, washing the powder by distilled water until the powder becomes colorless, subjecting the powder to suction filtration, after filtration drying the powder, then soaking the dried powder in a critic acid solution with a certain solubility, stirring to carry out reactions for a while, washing the solution by distilled water until the solution becomes neutral, carrying out suction filtration, and drying the reaction product after suction filtration so as to obtain the cellulose modified adsorbent.
Description
Technical field
The present invention relates to a kind of sorbent material, particularly one is using dateplum persimmon leaf string as raw material, and a kind of adsorbent prepared by modification and technique, belong to chemisorbed field.
Background technology
Along with the discharge capacity of waste water is increasingly sharpened, the heavy damage of environment.In waste water, various harmful material is enriched in biological chain through water body, finally enters human body, brings serious murder by poisoning impact, therefore, how to administer the most attention that heavy metal wastewater thereby has been subject to all circles to the mankind.
At present, effective separating technology for removing heavy metal ions in sewage has: precipitation, ion-exchange, electrochemical treatments, membrane technology, evaporation coagulation, counter-infiltration and electrodialysis etc., but the application of these technology is sometimes by technique and economic restriction, the method that heavy metal is removed in the organism absorption in recent years by living causes concern.This method mainly utilizes hyperaccumulative plant, algae and microorganism heavy metal to have larger adsorption capacity to remove heavy metal in waste water, but dispose of sewage by the biomass of organism itself and the restriction of growth characteristics with the organism lived, therefore these class methods are also unsuitable for large-scale application so far.
Plant cell has multi-layer micro-fiber structure, its composition generally all contains cellulose and pectic substance etc., they can provide functional group and the corrupt split such as amino, amide groups, aldehyde radical, hydroxyl, mercaptan, the present invention is using dateplum persimmon leaf as cellulosic source, under the effect of isopropyl alcohol, NaOH solution and citric acid solution, modification is prepared into a kind of cellulose adsorbent, and this adsorbent can be used for wastewater treatment, reach the treatment of wastes with processes of wastes against one another, realize the unification of economic benefit, social benefit and environmental benefit.
Summary of the invention
The present invention is to provide a kind of cellulose modified adsorbent and preparation technology thereof.This preparation technology is realized by following technology path:
(1) select appropriate dateplum persimmon leaf, clean up with clear water and distilled water successively, then put into baking oven and carry out drying to constant weight;
(2) take out chopping and pulverize, isopropyl alcohol powder being put into certain solubility soaks, and constantly stirs;
(3) be washed till with distilled water colourless again, then carry out suction filtration, be placed in drying box after suction filtration again and dry;
(4) the product of oven dry is dropped in the NaOH solution of certain solubility, and stirring makes it fully react;
(5) redistilled water is washed till solution for neutral, and carries out suction filtration, and being placed in drying box after suction filtration again dries;
(6) again the product of oven dry is dropped in the citric acid solution of certain solubility, stirring reaction a period of time;
(7) it is neutral for being washed till solution with distilled water again, and carries out suction filtration, is placed in drying box again and dries after suction filtration, after oven dry a kind of cellulose modified adsorbent.
Preferentially, step (1) in, bake out temperature is 40-60 DEG C.
Preferentially, step (2) in, the solubility of isopropyl alcohol is 20%, and soak time is 10-15 hour.
Preferentially, step (3), (5), (7) in, bake out temperature condition is at 40-55 DEG C, and the time is 15-20 hour.
Preferentially, step (4) in, the solubility of NaOH is 0.1-0.2mol/L, and mixing time is 1-2 hour.
First ground, step (6) in, the solubility of citric acid is 0.5-1mol/L, and stir, the time is 2-3 hour.
The present invention has following advantages and characteristic:
(1) technique journey processed is simple, and production efficiency is high;
(2) raw material sources are extensive, and cost is low.
Detailed description of the invention
Embodiment one:
Cleaning removing earth and dust after selecting appropriate dateplum persimmon leaf clear water to soak, clean up with distilled water again, then the baking oven put under 40 DEG C of conditions carries out drying to constant weight, take out the leaf chopping pulverize of drying, take out the aqueous isopropanol that 10g powder puts into 20% to soak, and constantly stir, be washed till colourless after 10 hours again with distilled water, carry out suction filtration again, suction filtration is placed in the drying box under 40 DEG C of conditions and dries, drying object is taken out after 20 hours, again drying object is dropped in the NaOH solution of 0.1mol/L, it is neutral that stirring reaction was washed till solution with distilled water after 2 hours, and carry out suction filtration, suction filtration is placed in the drying box under 40 DEG C of conditions and dries, taking out drying object after 20 hours drops in the citric acid solution of 0.5mol/L, it is neutral that stirring reaction was washed till solution with distilled water after 3 hours, and carry out suction filtration, drying box is placed in again after suction filtration, dry under 40 DEG C of conditions, to dry after 20 hours to obtain a kind of cellulose modified adsorbent.
Embodiment two:
Cleaning removing earth and dust after selecting appropriate dateplum persimmon leaf clear water to soak, clean up with distilled water again, then the baking oven put under 50 DEG C of conditions carries out drying to constant weight, take out the leaf chopping pulverize of drying, take out the aqueous isopropanol that 20g powder puts into 20% to soak, and constantly stir, be washed till colourless after 12 hours again with distilled water, carry out suction filtration again, suction filtration is placed in the drying box under 55 DEG C of conditions and dries, drying object is taken out after 15 hours, again drying object is dropped in the NaOH solution of 0.2mol/L, it is neutral that stirring reaction was washed till solution with distilled water after 1 hour, and carry out suction filtration, suction filtration is placed in the drying box under 55 DEG C of conditions and dries, taking out drying object after 15 hours drops in the citric acid solution of 1mol/L, it is neutral that stirring reaction was washed till solution with distilled water after 2 hours, and carry out suction filtration, drying box is placed in again after suction filtration, dry under 55 DEG C of conditions, to dry after 15 hours to obtain a kind of cellulose modified adsorbent.
Embodiment three:
Cleaning removing earth and dust after selecting appropriate dateplum persimmon leaf clear water to soak, clean up with distilled water again, then the baking oven put under 60 DEG C of conditions carries out drying to constant weight, take out the leaf chopping pulverize of drying, take out the aqueous isopropanol that 20g powder puts into 20% to soak, and constantly stir, be washed till colourless after 15 hours again with distilled water, carry out suction filtration again, suction filtration is placed in the drying box under 50 DEG C of conditions and dries, drying object is taken out after 18 hours, again drying object is dropped in the NaOH solution of 0.2mol/L, it is neutral that stirring reaction was washed till solution with distilled water after 1 hour, and carry out suction filtration, suction filtration is placed in the drying box under 50 DEG C of conditions and dries, taking out drying object after 18 hours drops in the citric acid solution of 1mol/L, it is neutral that stirring reaction was washed till solution with distilled water after 3 hours, and carry out suction filtration, drying box is placed in again after suction filtration, dry under 50 DEG C of conditions, to dry after 18 hours to obtain a kind of cellulose modified adsorbent.
Claims (6)
1. a preparation technology for cellulose modified adsorbent, is characterized in that, this preparation technology comprises the steps:
(1) select appropriate dateplum persimmon leaf, clean up with clear water and distilled water successively, then put into baking oven and carry out drying to constant weight;
(2) take out chopping and pulverize, isopropyl alcohol powder being put into certain solubility soaks, and constantly stirs;
(3) be washed till with distilled water colourless again, then carry out suction filtration, be placed in drying box after suction filtration again and dry;
(4) the product of oven dry is dropped in the NaOH solution of certain solubility, and stirring makes it fully react;
(5) redistilled water is washed till solution for neutral, and carries out suction filtration, and being placed in drying box after suction filtration again dries;
(6) again the product of oven dry is dropped in the citric acid solution of certain solubility, stirring reaction a period of time;
(7) it is neutral for being washed till solution with distilled water again, and carries out suction filtration, is placed in drying box again and dries after suction filtration, after oven dry a kind of modified cellulose adsorbent.
2. the preparation technology of a kind of cellulose modified adsorbent according to claim 1, is characterized in that, step (1) in, bake out temperature is 40-60 DEG C.
3. the preparation technology of a kind of cellulose modified adsorbent according to claim 1, is characterized in that, step (2) in, the solubility of isopropyl alcohol is 20%, and soak time is 10-15 hour.
4. the preparation technology of a kind of cellulose modified adsorbent according to claim 1, is characterized in that, step (3), (5), (7) in, bake out temperature condition is at 40-55 DEG C, and the time is 15-20 hour.
5. the preparation technology of a kind of cellulose modified adsorbent according to claim 1, is characterized in that, step (4) in, the solubility of NaOH is 0.1-0.2mol/L, and mixing time is 1-2 hour.
6. the preparation technology of a kind of cellulose modified adsorbent according to claim 1, is characterized in that, step (6) in, the solubility of citric acid is 0.5-1mol/L, stir, the time is 2-3 hour.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510951334.1A CN105435749A (en) | 2015-12-19 | 2015-12-19 | Cellulose modified adsorbent and preparation technology thereof |
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| CN201510951334.1A CN105435749A (en) | 2015-12-19 | 2015-12-19 | Cellulose modified adsorbent and preparation technology thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179252A (en) * | 2016-08-30 | 2016-12-07 | 黄汉龙 | A kind of method utilizing Folium Musae modification to prepare adsorbent |
| CN106179255A (en) * | 2016-08-30 | 2016-12-07 | 黄汉龙 | A kind of method utilizing the fresh leaf of plant Firmiana platanifolia (Linn. f.) Marsili to prepare adsorbent |
| CN106179256A (en) * | 2016-08-30 | 2016-12-07 | 黄汉龙 | A kind of technique utilizing Folium fici microcarpae modification to prepare adsorbent |
| CN106215876A (en) * | 2016-08-30 | 2016-12-14 | 黄汉龙 | A kind of biomass adsorbent and preparation technology thereof |
| CN106238002A (en) * | 2016-08-30 | 2016-12-21 | 黄汉龙 | A kind of biomass adsorbent |
| CN108236928A (en) * | 2016-12-27 | 2018-07-03 | 海门市源美美术图案设计有限公司 | A kind of tributyl phosphate modified cellulose and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266756A (en) * | 2011-07-25 | 2011-12-07 | 武汉工程大学 | Preparation method of citric acid modified rape straw adsorbent and application thereof |
| CN102430393A (en) * | 2011-09-19 | 2012-05-02 | 济南大学 | Citric acid loofah sponge preparation method and application |
| CN104014313A (en) * | 2014-06-03 | 2014-09-03 | 黄淮学院 | Improved wheat husk adsorbent |
-
2015
- 2015-12-19 CN CN201510951334.1A patent/CN105435749A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266756A (en) * | 2011-07-25 | 2011-12-07 | 武汉工程大学 | Preparation method of citric acid modified rape straw adsorbent and application thereof |
| CN102430393A (en) * | 2011-09-19 | 2012-05-02 | 济南大学 | Citric acid loofah sponge preparation method and application |
| CN104014313A (en) * | 2014-06-03 | 2014-09-03 | 黄淮学院 | Improved wheat husk adsorbent |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179252A (en) * | 2016-08-30 | 2016-12-07 | 黄汉龙 | A kind of method utilizing Folium Musae modification to prepare adsorbent |
| CN106179255A (en) * | 2016-08-30 | 2016-12-07 | 黄汉龙 | A kind of method utilizing the fresh leaf of plant Firmiana platanifolia (Linn. f.) Marsili to prepare adsorbent |
| CN106179256A (en) * | 2016-08-30 | 2016-12-07 | 黄汉龙 | A kind of technique utilizing Folium fici microcarpae modification to prepare adsorbent |
| CN106215876A (en) * | 2016-08-30 | 2016-12-14 | 黄汉龙 | A kind of biomass adsorbent and preparation technology thereof |
| CN106238002A (en) * | 2016-08-30 | 2016-12-21 | 黄汉龙 | A kind of biomass adsorbent |
| CN108236928A (en) * | 2016-12-27 | 2018-07-03 | 海门市源美美术图案设计有限公司 | A kind of tributyl phosphate modified cellulose and preparation method thereof |
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Application publication date: 20160330 |