http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102807263-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b706e1ec5642f67a61516620c896c1bf |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-28 |
| filingDate | 2011-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7b39c868e506a2b0cf7d15293616fcc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a67976c81e60c5748168308be4ee1ec8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78aacee44b349dd1fb122cac93ab762d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26692a0ba16471102bb26bf984c651ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59a58599aa394c94fd95665e2b359ad9 |
| publicationDate | 2013-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102807263-B |
| titleOfInvention | Method for degrading 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane pesticide in water by photocatalysis |
| abstract | The invention relates to a method for degrading 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane pesticide in water by photocatalysis, which is characterized in that a polyvinyl alcohol film carried with nanometer La2O3, Fe2O3 and NiO composite oxide is used as carrier catalyst, the carrier catalyst is put in a photocatalysis reactor containing aqueous solution to be processed; under the irradiation of ultraviolet light, the 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane pesticide in water can be quickly decomposed. The preparation method for the carrier catalyst comprises the following steps of: under continuous stirring, slowly adding polyvinyl alcohol powder of which the average molecular weight is 80000-90000 and the alcoholysis degree is 70-80% into distilled water, wherein the mass ratio of the polyvinyl alcohol to water is 1:(20-50); after the polyvinyl alcohol is fully swelled, raising temperature to 90 DEG C; under continuous stirring, adding La2O3, Fe2O3 and NiO powder dispersed by ultrasonic wave into the above mixed liquor; continuously stirring for 2-3 hours to form homogeneous colloidal solution; dipping cleaned ceramic matrix material into the solution for standing for 1-3 hours; after the cleaned ceramic matrix material is taken out, baking for 0.5-1.5 hours at the temperature of 180-230 DEG C to enable the surface of the ceramic matrix material to form a catalyst film of which the thickness is 50-200 naometers; and cooling to obtain the carrier catalyst. The method disclosed by the invention not only can be used for processing various types of waste water containing pyrethroid pesticide but also can be used for degrading the 2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane pesticide in agricultural product aqueous extracts, such as grain, fruit, tea or Chinese herbal medicine. |
| priorityDate | 2011-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.