WO2013062398A4 - Synthesis of materials for discolouration and degradation of organic pollutants in water: graphene alone and graphene nanocomposite (graphene-titanium dioxide) - Google Patents
Synthesis of materials for discolouration and degradation of organic pollutants in water: graphene alone and graphene nanocomposite (graphene-titanium dioxide) Download PDFInfo
- Publication number
- WO2013062398A4 WO2013062398A4 PCT/MA2012/000026 MA2012000026W WO2013062398A4 WO 2013062398 A4 WO2013062398 A4 WO 2013062398A4 MA 2012000026 W MA2012000026 W MA 2012000026W WO 2013062398 A4 WO2013062398 A4 WO 2013062398A4
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- WO
- WIPO (PCT)
- Prior art keywords
- graphene
- semiconductor
- process according
- nano
- organic pollutants
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract 14
- 229910021389 graphene Inorganic materials 0.000 title claims abstract 8
- 239000002114 nanocomposite Substances 0.000 title claims abstract 8
- 239000002957 persistent organic pollutant Substances 0.000 title claims abstract 6
- 230000015556 catabolic process Effects 0.000 title claims 4
- 238000006731 degradation reaction Methods 0.000 title claims 4
- 230000015572 biosynthetic process Effects 0.000 title claims 2
- 239000000463 material Substances 0.000 title claims 2
- 238000003786 synthesis reaction Methods 0.000 title claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title abstract 3
- 239000004408 titanium dioxide Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract 15
- 229910002804 graphite Inorganic materials 0.000 claims abstract 5
- 239000010439 graphite Substances 0.000 claims abstract 5
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract 4
- 150000004706 metal oxides Chemical class 0.000 claims abstract 4
- 238000002360 preparation method Methods 0.000 claims abstract 2
- 239000004065 semiconductor Substances 0.000 claims 8
- 239000002253 acid Substances 0.000 claims 3
- 239000003638 chemical reducing agent Substances 0.000 claims 3
- 239000002105 nanoparticle Substances 0.000 claims 3
- 150000007513 acids Chemical class 0.000 claims 2
- 125000000129 anionic group Chemical group 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 2
- 238000003756 stirring Methods 0.000 claims 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical group OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims 1
- 229910010413 TiO 2 Inorganic materials 0.000 claims 1
- 239000003945 anionic surfactant Substances 0.000 claims 1
- 239000003575 carbonaceous material Substances 0.000 claims 1
- 125000002091 cationic group Chemical group 0.000 claims 1
- 239000003093 cationic surfactant Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000006185 dispersion Substances 0.000 claims 1
- 238000005530 etching Methods 0.000 claims 1
- 238000011156 evaluation Methods 0.000 claims 1
- 238000004299 exfoliation Methods 0.000 claims 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000006722 reduction reaction Methods 0.000 claims 1
- 238000000527 sonication Methods 0.000 claims 1
- 239000003381 stabilizer Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000004094 surface-active agent Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000000593 degrading effect Effects 0.000 abstract 1
- 239000003651 drinking water Substances 0.000 abstract 1
- 235000020188 drinking water Nutrition 0.000 abstract 1
- 239000000975 dye Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000003295 industrial effluent Substances 0.000 abstract 1
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000575 pesticide Substances 0.000 abstract 1
- 239000011941 photocatalyst Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
Classifications
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
- C01B32/19—Preparation by exfoliation
- C01B32/192—Preparation by exfoliation starting from graphitic oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
- C01B32/22—Intercalation
- C01B32/225—Expansion; Exfoliation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
- C01B32/23—Oxidation
-
- 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
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/306—Pesticides
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to a method for treating water containing organic pollutants (dyes and pesticides), in particular with a view to reusing said water for irrigation, in industry or even as drinking water. This method is also applicable to the treatment of industrial effluents rich in organic impurities. The developed method relates to the use of photo-catalysts based on nanostructured carbon and a nanosized metal oxide. The scientific and technological obstacles of this method actually lie in the preparation of nanocomposites based on graphite and functionalised graphene (graphite oxide, graphene, graphene-titanium dioxide nanocomposite (GF@TiO2)) capable of degrading organic pollutants in water in the absence of ultra-violet (UV) radiation, and the production methods and uses thereof.
Claims
REVENDICATIONS MODIFIÉES MODIFIED CLAIMS
reçues par le Bureau international le 10 juin 2013 (10.06.2013) received by the International Bureau on 10 June 2013 (10.06.2013)
REVENDICATIONS
1 - Procédé pour produire des matériaux nano-composites pour la dégradation des polluants organiques en présence ou en absence de source UV caractérisé m ce que lesdits nano- composites sont constitués au moins d'un matériau carboné nano-structuré et d'un oxyde métallique semi-conducteur, et sont préparés selon les étapes suivantes : a. Préparation d'Oxyde de Graphite (GO) à partir du graphite commercial via une oxydation chimique ; b. L'exfoliation du GO mentionné dans (a) par agitation, et puis par la suite une réduction chimique par au moins un agent réducteur. c. Fonction nal isati on du graphène exfolié obtenu selon (b) via une attaque par un mélange d'acides contenant au moins deux acides et de préférence trois types d'acide. ; d. Contrôle de la croissance des nanoparticules e. Synthèse du nano-composite graphène fonctionnalisé 1 - Process for producing nano-composite materials for the degradation of organic pollutants in the presence or absence of a UV source, characterized in that said nano-composites consist of at least one nano-structured carbon material and a metal oxide semiconductor, and are prepared according to the following steps: a. Preparation of Graphite Oxide (GO) from commercial graphite via chemical oxidation; b. The exfoliation of the GO mentioned in (a) by stirring, and then subsequently a chemical reduction by at least one reducing agent. c. Functional evaluation of the exfoliated graphene obtained according to (b) via etching with a mixture of acids containing at least two acids and preferably three types of acid. ; d. Controlling the growth of nanoparticles e. Synthesis of functionalized graphene nano-composite
2- Procédé selon la revendication 1, caractérisé en ce que le mode d'agitation est la sonication. 2- Method according to claim 1, characterized in that the stirring mode is sonication.
3- Procédé selon la revendication 1, caractérisé en ce que l'agent réducteur est l'hydrate d'hydrazine, NaBH4, C6H8O6, Na2S2O4. 3. Process according to claim 1, characterized in that the reducing agent is hydrazine hydrate, NaBH 4 , C 6 H 8 O 6 , Na 2 S 2 O 4 .
4- Procédé selon les revendications 1 à 3, caractérisé en ce qu'on présence d'oxyde métallique semi-conducteur, la croissance des nanoparticules du semi-conducteur est contrôlée en les stabilisants par au moins un surfactant de nature anionique ou cationique, 4- Process according to claims 1 to 3, characterized in that presence of semiconductor metal oxide, the growth of the nanoparticles of the semiconductor is controlled stabilizers by at least one surfactant of anionic or cationic nature,
5- Procédé selon les revendications i à 4, caractérisé en ce que le nano-composite graphène fonctiormaiisé-semi-conducteur est synthétisé par la dispersion des nanoparticules du semiconducteur sur la surface du graphène fonctionnalisé en présence ou absence de surfactant anionique ou cationique. 5. Process according to claims 1 to 4, characterized in that the functiormalized graphene-semiconductor nano-composite is synthesized by the dispersion of the semiconductor nanoparticles on the surface of functionalized graphene in the presence or absence of anionic or cationic surfactant.
6- Procédé selon les revendications 1 à 5, caractérisé en ce que l'oxyde métallique semiconducteur est choisi parmi TiO2. ZnO, Fe203, CuO. 6. Process according to claims 1 to 5, characterized in that the semiconductor metal oxide is selected from TiO 2 . ZnO, Fe 2 O 3 , CuO.
7- Procédé selon l'une quelconque des revendications précédentes, caractérisé m ce que le pourcentage du semi-conducteur est entre 3 à 50% en poids du nano-composite. 7. The process as claimed in any one of the preceding claims, characterized in that the percentage of the semiconductor is between 3 and 50% by weight of the nano-composite.
8- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ee que la taille du semi-conducteur est de dimension nanométrique incluse entre 5 à 50 nrn. 8. Process according to any one of the preceding claims, characterized in that the size of the semiconductor is of nanometric dimension included between 5 to 50 nm.
9 - Procédé selon les revendications précédentes, caractérisé en ee que la réaction est entreprise à pression atmosphérique et à une température comprise entre 18 et 30°C. 9 - Process according to the preceding claims, characterized in that the reaction is carried out at atmospheric pressure and at a temperature between 18 and 30 ° C.
10- Procédé selon l'une quelconque des revendications précédentes, caractérisé par l'utilisation de dioxyde de graphite comme support solide pour la dégradation des polluants organiques.
11- Procédé selon l'une quelconque des revendications précédentes, caractérisé par l'utilisation de graphène comme support solide pour la dégradation des polluants organiques.
10- Method according to any one of the preceding claims, characterized by the use of graphite dioxide as a solid support for the degradation of organic pollutants. 11. Process according to any one of the preceding claims, characterized by the use of graphene as a solid support for the degradation of organic pollutants.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MA34304 | 2011-10-26 | ||
| MA34304A MA34204B1 (en) | 2011-10-26 | 2011-10-26 | SYNTHESIS OF MATERIALS FOR DECOLORATION AND DEGRADATION OF ORGANIC POLLUTANTS IN WATER: GRAPHENE ALONE AND GRAPHENE NANO COMPOSITE (GRAPHENE / TITANIUM DIOXIDE) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2013062398A1 WO2013062398A1 (en) | 2013-05-02 |
| WO2013062398A4 true WO2013062398A4 (en) | 2013-07-25 |
Family
ID=47631683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MA2012/000026 WO2013062398A1 (en) | 2011-10-26 | 2012-10-25 | Synthesis of materials for discolouration and degradation of organic pollutants in water: graphene alone and graphene nanocomposite (graphene-titanium dioxide) |
Country Status (2)
| Country | Link |
|---|---|
| MA (1) | MA34204B1 (en) |
| WO (1) | WO2013062398A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058516B (en) * | 2014-05-30 | 2015-11-25 | 安徽国星生物化学有限公司 | A kind for the treatment of process of the phosphorus-containing wastewater in glyphosate production process generation |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101559200B1 (en) * | 2013-05-13 | 2015-10-15 | 제주대학교 산학협력단 | Apparatus and method for waste-water treatment using dielectric barrier discharge |
| CN104028309B (en) * | 2014-06-26 | 2016-01-20 | 浙江理工大学 | A kind of compound visible light catalyst and preparation method thereof |
| CN106076303B (en) * | 2016-06-29 | 2018-10-02 | 湖南大学 | Graphene oxide/nano titania needle composite material and preparation method and application |
| CN110201723A (en) * | 2019-07-09 | 2019-09-06 | 西南石油大学 | A kind of dopamine/redox graphene/silver orthophosphate composite photocatalyst material and its preparation |
| CN110252414A (en) * | 2019-07-09 | 2019-09-20 | 西南石油大学 | A kind of preparation and application of poly-dopamine/redox graphene/silver orthophosphate PVDF photocatalysis membrana |
| CN110316890A (en) * | 2019-08-05 | 2019-10-11 | 中国水产科学研究院淡水渔业研究中心 | A method of organic matter in processing grass carp breeding wastewater |
| CN112516978A (en) * | 2020-11-20 | 2021-03-19 | 哈尔滨工业大学（深圳） | Graphene nanocomposite and preparation method and application thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110186789A1 (en) * | 2008-05-22 | 2011-08-04 | The University Of North Carolina At Chapel Hill | Synthesis of graphene sheets and nanoparticle composites comprising same |
| US8257867B2 (en) * | 2008-07-28 | 2012-09-04 | Battelle Memorial Institute | Nanocomposite of graphene and metal oxide materials |
| US9534319B2 (en) * | 2009-02-19 | 2017-01-03 | William Marsh Rice University | Dissolution of graphite, graphite and graphene nanoribbons in superacid solutions and manipulation thereof |
| ITMI20090545A1 (en) * | 2009-04-06 | 2010-10-07 | Envitech S R L Sa | COMBINATION OF MATERIALS FOR THE TREATMENT OF CONTAMINATED LIQUIDS THROUGH PHOTOCATALYTIC OXIDATION |
| US8287699B2 (en) * | 2009-07-27 | 2012-10-16 | Nanotek Instruments, Inc. | Production of chemically functionalized nano graphene materials |
| CN101691204B (en) * | 2009-08-13 | 2012-01-11 | 中国科学院苏州纳米技术与纳米仿生研究所 | Stable nano graphene oxide under physiological condition and preparation method thereof |
| US8315039B2 (en) * | 2009-12-28 | 2012-11-20 | Nanotek Instruments, Inc. | Spacer-modified nano graphene electrodes for supercapacitors |
-
2011
- 2011-10-26 MA MA34304A patent/MA34204B1/en unknown
-
2012
- 2012-10-25 WO PCT/MA2012/000026 patent/WO2013062398A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058516B (en) * | 2014-05-30 | 2015-11-25 | 安徽国星生物化学有限公司 | A kind for the treatment of process of the phosphorus-containing wastewater in glyphosate production process generation |
Also Published As
| Publication number | Publication date |
|---|---|
| MA34204B1 (en) | 2013-05-02 |
| WO2013062398A1 (en) | 2013-05-02 |
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