CN107519895A - Cadmium sulfide/CNT composite photo-catalyst and preparation method thereof - Google Patents
Cadmium sulfide/CNT composite photo-catalyst and preparation method thereof Download PDFInfo
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- CN107519895A CN107519895A CN201610457246.0A CN201610457246A CN107519895A CN 107519895 A CN107519895 A CN 107519895A CN 201610457246 A CN201610457246 A CN 201610457246A CN 107519895 A CN107519895 A CN 107519895A
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- cnt
- catalyst
- cadmium sulfide
- composite photo
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- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052980 cadmium sulfide Inorganic materials 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229940116367 cadmium sulfide Drugs 0.000 claims abstract description 28
- 239000000243 solution Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 7
- 239000002096 quantum dot Substances 0.000 claims abstract description 7
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 7
- 239000011734 sodium Substances 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 239000011259 mixed solution Substances 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 239000004065 semiconductor Substances 0.000 abstract description 6
- 230000001699 photocatalysis Effects 0.000 abstract description 5
- 235000018417 cysteine Nutrition 0.000 abstract 1
- 150000001945 cysteines Chemical class 0.000 abstract 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004098 Tetracycline Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 description 1
- 229960002180 tetracycline Drugs 0.000 description 1
- 229930101283 tetracycline Natural products 0.000 description 1
- 235000019364 tetracycline Nutrition 0.000 description 1
- 150000003522 tetracyclines Chemical class 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
Classifications
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
This application discloses a kind of cadmium sulfide/CNT composite photo-catalyst and preparation method thereof, the method comprising the steps of：(1), CNT is put into uniform containing ultrasonic mixing in acid solution, with ionized water filtering and washing, then dried；(2), by caddy, the dissolving of L cysteines in deionized water, pH to 7~8 is adjusted；(3), the CNT of acidifying is added in the mixed solution of step (2) and stirred, added vulcanized sodium, heated 1.2~1.5 hours under the conditions of 160~170 DEG C；(4), centrifuge, wash and dry.Composite of the present invention improves the photocatalytic activity of semi-conducting material, solves the problems, such as that cadmiumsulfide quantum dot material is unstable and photocatalytic activity is not high.
Description
Technical field
The application belongs to technical field of waste water processing, more particularly to a kind of cadmium sulfide/CNT composite photo-catalyst
And preparation method thereof.
Background technology
Cadmium selenide is the direct band-gap semicondictor material that energy gap is 1.7eV, has cubic zinc blende and six side's fibre zinc
It two kinds of crystal structures of ore deposit, wherein cube phase structure is metastable state, can be only present in lower temperature, be changed into hexagonal phase knot during high temperature
Structure.Cadmium selenide at normal temperatures can simultaneously exist cube and six sides, two kinds of crystalline phases.Cadmium selenide nano-crystal is ground in semiconductor nano
Study carefully most extensively, the best a kind of II-VI group semiconductor nano of application prospect, because it has important optically nonlinearity
Matter, luminosity and other physicochemical characteristics and enjoy attracting attention for common people.As a kind of very important semi-conducting material,
Through in various light-emitting devices, laser and infrared detector, the neck such as infrared window and nonlinear optical material and light sensor
The wide application prospect of domain views.Particularly cadmium selenide can absorb visible ray well, thus it is photochemical catalyst
Preferred material.
Cadmium selenide easily photoetch, photostability is poor, and the light absorbs threshold value of titanium dioxide is confined to ultraviolet light and gone, sun profit
Low with rate, these deficiencies strongly limit the performance of their performances.
The content of the invention
It is an object of the invention to provide a kind of cadmium sulfide/CNT composite photo-catalyst and preparation method thereof, with gram
Take deficiency of the prior art.
To achieve the above object, the present invention provides following technical scheme：
The embodiment of the present application discloses a kind of cadmium sulfide/CNT composite photo-catalyst, the catalyst using CNT as
Carrier, area load have cadmiumsulfide quantum dot.
Preferably, in above-mentioned cadmium sulfide/CNT composite photo-catalyst, the content of the CNT for 4~
6%.
Accordingly, disclosed herein as well is a kind of preparation method of cadmium sulfide/CNT composite photo-catalyst, including step
Suddenly：
(1), CNT is put into it is uniform containing ultrasonic mixing in acid solution, with ionized water filtering and washing, Ran Hougan
It is dry；
(2), by caddy, Cys dissolving in deionized water, pH to 7~8 is adjusted；
(3), the CNT of acidifying is added in the mixed solution of step (2) and stirred, vulcanized sodium is added, 160
Heated 1.2~1.5 hours under the conditions of~170 DEG C；
(4), centrifuge, wash and dry.
Preferably, in the preparation method of above-mentioned cadmium sulfide/CNT composite photo-catalyst, in the step (1),
Acid solution is the mixed liquor of concentrated nitric acid and the concentrated sulfuric acid, and the wherein mol ratio of concentrated nitric acid and the concentrated sulfuric acid is (2.5~3):1.
Preferably, in the preparation method of above-mentioned cadmium sulfide/CNT composite photo-catalyst, in step (2), chlorination
Cadmium, Cys are according to mass ratio (1.5~1.8):1.
Preferably, in the preparation method of above-mentioned cadmium sulfide/CNT composite photo-catalyst, in step (2), hydrogen is used
Sodium hydroxide solution adjusts pH to 7~8.
Compared with prior art, the advantage of the invention is that：The light that composite of the present invention improves semi-conducting material is urged
Change activity, solve the problems, such as that cadmiumsulfide quantum dot material is unstable and photocatalytic activity is not high.
Embodiment
The present invention is described further by the following example：According to following embodiments, the present invention may be better understood.
However, as it will be easily appreciated by one skilled in the art that specific material ratio, process conditions and its result described by embodiment are only used
In the explanation present invention, without should be also without limitation on the present invention described in detail in claims.
Embodiment 1
The preparation method of cadmium sulfide/CNT composite photo-catalyst
Using CNT as carrier, cadmiumsulfide quantum dot is loaded in carbon nano tube surface using hydro-thermal method.Wherein carbon nanometer
The content of pipe is 5%.
(1), CNT is put into it is uniform containing ultrasonic mixing in acid solution, with ionized water filtering and washing, Ran Hou
Dried 12 hours at 50 DEG C；
Acid solution is the mixed liquor of concentrated nitric acid and the concentrated sulfuric acid, and wherein the mol ratio of concentrated nitric acid and the concentrated sulfuric acid is 2.8:1；
(2), by caddy, Cys according to mass ratio 1.7:1 dissolves in deionized water, with 1mol/L hydrogen-oxygen
Change sodium solution regulation pH to 7；
(3), the CNT of acidifying is added in the mixed solution of step (2) and stirred, logical nitrogen divides except oxygen 30
Clock, vulcanized sodium is then added, heated 1.5 hours under the conditions of 170 DEG C；
(4), centrifuge, wash and dry.
XRD and XPS shows that synthesized nano material is cadmium sulfide/CNT.
The cadmium sulfide obtained/CNT composite photo-catalyst shows good light in tetracycline degradation process and urged
Change activity, degradation rate reaches more than 80%.
The composite improves the photocatalytic activity of semi-conducting material, solve cadmiumsulfide quantum dot material it is unstable and
The problem of photocatalytic activity is not high.
Embodiment 2
The preparation method of cadmium sulfide/CNT composite photo-catalyst
Using CNT as carrier, cadmiumsulfide quantum dot is loaded in carbon nano tube surface using hydro-thermal method.Wherein carbon nanometer
The content of pipe is 4%.
(1), CNT is put into it is uniform containing ultrasonic mixing in acid solution, with ionized water filtering and washing, Ran Hou
Dried 12 hours at 50 DEG C；
Acid solution is the mixed liquor of concentrated nitric acid and the concentrated sulfuric acid, and wherein the mol ratio of concentrated nitric acid and the concentrated sulfuric acid is 3:1；
(2), by caddy, Cys according to mass ratio 1.8:1 dissolves in deionized water, with 1mol/L hydrogen-oxygen
Change sodium solution regulation pH to 7；
(3), the CNT of acidifying is added in the mixed solution of step (2) and stirred, logical nitrogen divides except oxygen 30
Clock, vulcanized sodium is then added, heated 1.3 hours under the conditions of 170 DEG C；
(4), centrifuge, wash and dry.
XRD and XPS shows that synthesized nano material is cadmium sulfide/CNT.
Finally, it is to be noted that, term " comprising ", "comprising" or its any other variant be intended to it is non-exclusive
Property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and
Also include the other element that is not expressly set out, or also include for this process, method, article or equipment inherently
Key element.
Claims (6)
1. a kind of cadmium sulfide/CNT composite photo-catalyst, it is characterised in that the catalyst is using CNT as carrier, table
Face is loaded with cadmiumsulfide quantum dot.
2. cadmium sulfide according to claim 1/CNT composite photo-catalyst, it is characterised in that：The CNT
Content be 4~6%.
3. the preparation method of a kind of cadmium sulfide/CNT composite photo-catalyst, it is characterised in that including step：
(1), CNT is put into uniform containing ultrasonic mixing in acid solution, with ionized water filtering and washing, then dried；
(2), by caddy, Cys dissolving in deionized water, pH to 7~8 is adjusted；
(3), the CNT of acidifying is added in the mixed solution of step (2) and stirred, vulcanized sodium is added, 160~170
Heated 1.2~1.5 hours under the conditions of DEG C；
(4), centrifuge, wash and dry.
4. the preparation method of cadmium sulfide according to claim 3/CNT composite photo-catalyst, it is characterised in that：Institute
State in step (1), acid solution is the mixed liquor of concentrated nitric acid and the concentrated sulfuric acid, wherein the mol ratio of concentrated nitric acid and the concentrated sulfuric acid for (2.5~
3):1。
5. the preparation method of cadmium sulfide according to claim 3/CNT composite photo-catalyst, it is characterised in that：Step
Suddenly in (2), caddy, Cys are according to mass ratio (1.5~1.8):1.
6. the preparation method of cadmium sulfide according to claim 3/CNT composite photo-catalyst, it is characterised in that：Step
Suddenly in (2), pH to 7~8 is adjusted with sodium hydroxide solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457246.0A CN107519895A (en) | 2016-06-22 | 2016-06-22 | Cadmium sulfide/CNT composite photo-catalyst and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457246.0A CN107519895A (en) | 2016-06-22 | 2016-06-22 | Cadmium sulfide/CNT composite photo-catalyst and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107519895A true CN107519895A (en) | 2017-12-29 |
Family
ID=60734350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610457246.0A Withdrawn CN107519895A (en) | 2016-06-22 | 2016-06-22 | Cadmium sulfide/CNT composite photo-catalyst and preparation method thereof |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108598440A (en) * | 2018-05-15 | 2018-09-28 | 浙江南都电源动力股份有限公司 | A kind of preparation method of composite material |
| CN108842159A (en) * | 2018-06-19 | 2018-11-20 | 上海师范大学 | A kind of preparation method and application of cadmium sulfide nano wires and carbon nanotube composite and flexible electrode with high yield hydrogen activity |
| CN109794262A (en) * | 2019-01-31 | 2019-05-24 | 福建农林大学 | A kind of method and application preparing catalysis material using Cd-hyperaccumulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070153A (en) * | 2007-05-24 | 2007-11-14 | 上海大学 | Radiation synthesizing method for cadminium sulfide coated carbon nano tube composite nano material |
| CN103316692A (en) * | 2013-06-24 | 2013-09-25 | 江苏大学 | Preparation method and application of CdS/CNTs composite photocatalyst |
| CN103979523A (en) * | 2014-04-28 | 2014-08-13 | 中国石油大学(北京) | Method for filling multi-walled carbon nano-tubes with cadmium sulfide |
-
2016
- 2016-06-22 CN CN201610457246.0A patent/CN107519895A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070153A (en) * | 2007-05-24 | 2007-11-14 | 上海大学 | Radiation synthesizing method for cadminium sulfide coated carbon nano tube composite nano material |
| CN103316692A (en) * | 2013-06-24 | 2013-09-25 | 江苏大学 | Preparation method and application of CdS/CNTs composite photocatalyst |
| CN103979523A (en) * | 2014-04-28 | 2014-08-13 | 中国石油大学(北京) | Method for filling multi-walled carbon nano-tubes with cadmium sulfide |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108598440A (en) * | 2018-05-15 | 2018-09-28 | 浙江南都电源动力股份有限公司 | A kind of preparation method of composite material |
| CN108842159A (en) * | 2018-06-19 | 2018-11-20 | 上海师范大学 | A kind of preparation method and application of cadmium sulfide nano wires and carbon nanotube composite and flexible electrode with high yield hydrogen activity |
| CN109794262A (en) * | 2019-01-31 | 2019-05-24 | 福建农林大学 | A kind of method and application preparing catalysis material using Cd-hyperaccumulator |
| CN109794262B (en) * | 2019-01-31 | 2021-11-30 | 福建农林大学 | Method for preparing photocatalytic material by utilizing cadmium hyper-enrichment plant and application |
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