CN108236925A - A kind of bentonite nano carbon composite and its application - Google Patents
A kind of bentonite nano carbon composite and its application Download PDFInfo
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- CN108236925A CN108236925A CN201611216642.0A CN201611216642A CN108236925A CN 108236925 A CN108236925 A CN 108236925A CN 201611216642 A CN201611216642 A CN 201611216642A CN 108236925 A CN108236925 A CN 108236925A
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- nano carbon
- bentonite
- carbon composite
- bentonite nano
- hydro
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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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of bentonite nano carbon composite and its application, bentonite nano carbon composite is prepared by the following method：Bentonite and glucose are weighed, adds distillation water dissolution, after ultrasonic disperse, is placed in hydrothermal reaction kettle, hydro-thermal reaction is carried out, the composite material after reaction is cooled to room temperature, centrifuges, wash, drying, grinding up to the bentonite nano carbon composite.Bentonite nano carbon composite provided by the invention has good suction-operated to Cr VI.
Description
Technical field
The invention belongs to Material Fields, and in particular to a kind of bentonite nano carbon composite and its application.
Background technology
Heavy metal chromium mainly exists in the environment with (VI) two kind of valence state of Cr (III) and Cr.Compared with Cr (III), Cr
(VI) with good water-soluble, stronger migration, to human body with " three cause " effect.Cr is provided in Drinking Water in China standard
(VI) concentration≤0.05mgL-1, Cr (VI) concentration≤0.15mgL in surface water-1, Cr (VI) and total chromium maximum permit in sewage
Perhaps concentration of emission is respectively 0.5 and 1.5mgL-1.Therefore, to chromate waste water, the processing of especially Cr (VI) is current environmental protection neck
The research hotspot in domain.At present, the main method of processing waste water containing chrome include hyperfiltration, photo-reduction, ion-exchange,
Chemical precipitation method, bioanalysis and absorption method etc..Compared with other methods, absorption method has the removal effect good, easy to operate etc. excellent
Point is widely used in the processing of chromate waste water.
It is paid high attention to using the heavy metal in clay mineral Adsorption waste water by scholars.Wherein, bentonite
Because being widely used in water treatment field, but since bentonite is with knot with larger specific surface area and when good absorption property
Structure negative electrical charge and surface negative charge, it is poor to the absorption property of Cr (VI).Therefore, numerous scholars are modified bentonite surface
To increase its adsorbance, such as using acidification, high temperature, chemical modification the methods of, but these method of modifying there are method of modifying it is cumbersome,
The shortcomings of cost is higher, modified adsorbent adsorption capacity is still smaller.
Invention content
The object of the present invention is to provide a kind of bentonite nano carbon composite and its applications.
Above-mentioned purpose is achieved by the following technical solution：
A kind of bentonite nano carbon composite, is prepared by the following method：Bentonite and glucose are weighed, adds distillation water-soluble
It solves, after ultrasonic disperse, is placed in hydrothermal reaction kettle, carry out hydro-thermal reaction, the composite material after reaction is cooled to room temperature, centrifuge
It detaches, wash, drying, grinding up to the bentonite nano carbon composite.
Preferably, the quality of the glucose is 3-6 times of bentonite quality.
Preferably, 1g bentonites correspond to distilled water 20-30mL.
Preferably, the temperature of the hydro-thermal reaction is 120-160 DEG C.
Preferably, hydro-thermal reaction 15-25 hours.
Preferably, drying temperature is 45-55 DEG C.
Application of the above-mentioned bentonite nano carbon composite in terms of adsorbing hexavalent chromium.
Beneficial effects of the present invention：
Bentonite nano carbon composite provided by the invention has good suction-operated to Cr VI.
Specific embodiment
Intend specifically introducing the technical solution of the invention below by specific embodiment.
Embodiment 1：
A kind of bentonite nano carbon composite, is prepared by the following method：Bentonite and glucose are weighed, adds distillation water-soluble
It solves, after ultrasonic disperse, is placed in hydrothermal reaction kettle, carry out hydro-thermal reaction, the composite material after reaction is cooled to room temperature, centrifuge
It detaches, wash, drying, grinding up to the bentonite nano carbon composite.
Wherein, the quality of the glucose is 4.5 times of bentonite quality.
Wherein, 1g bentonites correspond to distilled water 25mL.
Wherein, the temperature of the hydro-thermal reaction is 140 DEG C.
Wherein, hydro-thermal reaction 20 hours.
Wherein, drying temperature is 50 DEG C.
Embodiment 2：
A kind of bentonite nano carbon composite, is prepared by the following method：Bentonite and glucose are weighed, adds distillation water-soluble
It solves, after ultrasonic disperse, is placed in hydrothermal reaction kettle, carry out hydro-thermal reaction, the composite material after reaction is cooled to room temperature, centrifuge
It detaches, wash, drying, grinding up to the bentonite nano carbon composite.
Wherein, the quality of the glucose is 3 times of bentonite quality.
Wherein, 1g bentonites correspond to distilled water 20mL.
Wherein, the temperature of the hydro-thermal reaction is 120 DEG C.
Wherein, hydro-thermal reaction 25 hours.
Wherein, drying temperature is 45 DEG C.
Embodiment 3：
A kind of bentonite nano carbon composite, is prepared by the following method：Bentonite and glucose are weighed, adds distillation water-soluble
It solves, after ultrasonic disperse, is placed in hydrothermal reaction kettle, carry out hydro-thermal reaction, the composite material after reaction is cooled to room temperature, centrifuge
It detaches, wash, drying, grinding up to the bentonite nano carbon composite.
Wherein, the quality of the glucose is 6 times of bentonite quality.
Wherein, 1g bentonites correspond to distilled water 30mL.
Wherein, the temperature of the hydro-thermal reaction is 160 DEG C.
Wherein, hydro-thermal reaction 15 hours.
Wherein, drying temperature is 55 DEG C.
Embodiment 4：
A kind of bentonite nano carbon composite, is prepared by the following method：Bentonite and glucose are weighed, adds distillation water-soluble
It solves, after ultrasonic disperse, is placed in hydrothermal reaction kettle, carry out hydro-thermal reaction, the composite material after reaction is cooled to room temperature, centrifuge
It detaches, wash, drying, grinding up to the bentonite nano carbon composite.
Wherein, the quality of the glucose is 4 times of bentonite quality.
Wherein, 1g bentonites correspond to distilled water 25mL.
Wherein, the temperature of the hydro-thermal reaction is 140 DEG C.
Wherein, hydro-thermal reaction 20 hours.
Wherein, drying temperature is 50 DEG C.
Embodiment 5：
A kind of bentonite nano carbon composite, is prepared by the following method：Bentonite and glucose are weighed, adds distillation water-soluble
It solves, after ultrasonic disperse, is placed in hydrothermal reaction kettle, carry out hydro-thermal reaction, the composite material after reaction is cooled to room temperature, centrifuge
It detaches, wash, drying, grinding up to the bentonite nano carbon composite.
Wherein, the quality of the glucose is 5 times of bentonite quality.
Wherein, 1g bentonites correspond to distilled water 25mL.
Wherein, the temperature of the hydro-thermal reaction is 140 DEG C.
Wherein, hydro-thermal reaction 20 hours.
Wherein, drying temperature is 50 DEG C.
Embodiment 6：
A kind of bentonite nano carbon composite, is prepared by the following method：Bentonite and glucose are weighed, adds distillation water-soluble
It solves, after ultrasonic disperse, is placed in hydrothermal reaction kettle, carry out hydro-thermal reaction, the composite material after reaction is cooled to room temperature, centrifuge
It detaches, wash, drying, grinding up to the bentonite nano carbon composite.
Wherein, the quality of the glucose is 4.5 times of bentonite quality.
Wherein, 1g bentonites correspond to distilled water 22mL.
Wherein, the temperature of the hydro-thermal reaction is 140 DEG C.
Wherein, hydro-thermal reaction 20 hours.
Wherein, drying temperature is 50 DEG C.
Embodiment 7：
A kind of bentonite nano carbon composite, is prepared by the following method：Bentonite and glucose are weighed, adds distillation water-soluble
It solves, after ultrasonic disperse, is placed in hydrothermal reaction kettle, carry out hydro-thermal reaction, the composite material after reaction is cooled to room temperature, centrifuge
It detaches, wash, drying, grinding up to the bentonite nano carbon composite.
Wherein, the quality of the glucose is 4.5 times of bentonite quality.
Wherein, 1g bentonites correspond to distilled water 28mL.
Wherein, the temperature of the hydro-thermal reaction is 140 DEG C.
Wherein, hydro-thermal reaction 20 hours.
Wherein, drying temperature is 50 DEG C.
Bentonite nano carbon composite provided by the invention has good suction-operated to Cr VI.
The effect of above-mentioned specific embodiment indicates that the essentiality content of the invention, but do not limit this hair with this
The protection domain of bright creation.Simply modification or equivalent replacement are carried out to the technical solution of the invention, without departing from this hair
It is bright to create the essence of technical solution, thus necessarily fall into the protection domain of the invention.
Claims (7)
1. a kind of bentonite nano carbon composite, which is characterized in that be prepared by the following method：Weigh bentonite and grape
Sugar, adds distillation water dissolution, after ultrasonic disperse, is placed in hydrothermal reaction kettle, carries out hydro-thermal reaction, and the composite material after reaction is cold
But it to room temperature, centrifuges, wash, drying, grinding up to the bentonite nano carbon composite.
2. bentonite nano carbon composite according to claim 1, it is characterised in that：The quality of the glucose is swollen
Moisten 3-6 times of soil property amount.
3. bentonite nano carbon composite according to claim 1, it is characterised in that：1g bentonites correspond to distilled water
20-30mL。
4. bentonite nano carbon composite according to claim 1, it is characterised in that：The temperature of the hydro-thermal reaction is
120-160℃。
5. bentonite nano carbon composite according to claim 4, it is characterised in that：Hydro-thermal reaction 15-25 hours.
6. bentonite nano carbon composite according to claim 1, it is characterised in that：Drying temperature is 45-55 DEG C.
7. application of any bentonite nano carbon composites of claim 1-6 in terms of adsorbing hexavalent chromium.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611216642.0A CN108236925A (en) | 2016-12-27 | 2016-12-27 | A kind of bentonite nano carbon composite and its application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611216642.0A CN108236925A (en) | 2016-12-27 | 2016-12-27 | A kind of bentonite nano carbon composite and its application |
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| CN108236925A true CN108236925A (en) | 2018-07-03 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921108A (en) * | 2016-05-28 | 2016-09-07 | 中国科学院新疆理化技术研究所 | Preparation method and application of montmorillonoid and carbon composite material |
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2016
- 2016-12-27 CN CN201611216642.0A patent/CN108236925A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921108A (en) * | 2016-05-28 | 2016-09-07 | 中国科学院新疆理化技术研究所 | Preparation method and application of montmorillonoid and carbon composite material |
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