Elimination of Escherichia coli in Water Using Cobalt Ferrite Nanoparticles: Laboratory and Pilot Plant Experiments
This paper focuses on the synthesis of cobalt ferrite nanoparticles by the sol-gel method and their photocatalytic activity to eliminate bacteria in aqueous media at two different scales: in a laboratory reactor and a solar pilot plant. Cobalt ferrite nanoparticles were prepared using Co(II) and Fe(...
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| Veröffentlicht in: | Materials 2019-06, Vol.12 (13), p.2103 |
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| creator | Gastelo, Elmer Montes de Oca, Juan Carpio, Edward Espinoza, Juan García, Pilar Ponce, Silvia Rodriguez, Juan |
| description | This paper focuses on the synthesis of cobalt ferrite nanoparticles by the sol-gel method and their photocatalytic activity to eliminate bacteria in aqueous media at two different scales: in a laboratory reactor and a solar pilot plant. Cobalt ferrite nanoparticles were prepared using Co(II) and Fe(II) salts as precursors and cetyltrimethyl ammonium bromide as a surfactant. The obtained nanoparticles were characterized by X-ray diffraction, scanning and transmission electron microscopy.
(
) strain ATCC 22922 was used as model bacteria for contact biocidal analysis carried out by disk diffusion method and photocatalysis under an ultraviolet A (UV-A) lamp for laboratory analysis and solar radiation (radiation below 350 W/m
in a typical cloudy day) for the pilot plant analysis. The results showed that cobalt ferrite nanoparticles have an average diameter of (36 ± 20) nm and the X-ray diffraction pattern shows a cubic spinel structure. Using the disk diffusion technique, it was obtained inhibition zones of (17 ± 2) mm diameter. Results confirm the photocatalytic elimination of
in water samples with remaining bacteria below 1% of the initial concentration during the experiment time (30 min for laboratory tests and 1.5 h for pilot plant tests). |
| doi_str_mv | 10.3390/ma12132103 |
| format | Article |
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(
) strain ATCC 22922 was used as model bacteria for contact biocidal analysis carried out by disk diffusion method and photocatalysis under an ultraviolet A (UV-A) lamp for laboratory analysis and solar radiation (radiation below 350 W/m
in a typical cloudy day) for the pilot plant analysis. The results showed that cobalt ferrite nanoparticles have an average diameter of (36 ± 20) nm and the X-ray diffraction pattern shows a cubic spinel structure. Using the disk diffusion technique, it was obtained inhibition zones of (17 ± 2) mm diameter. Results confirm the photocatalytic elimination of
in water samples with remaining bacteria below 1% of the initial concentration during the experiment time (30 min for laboratory tests and 1.5 h for pilot plant tests).</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma12132103</identifier><identifier>PMID: 31261908</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Ammonium bromides ; Aqueous solutions ; Bacteria ; Biocides ; Catalytic activity ; Cobalt ferrites ; Composite materials ; Diffraction patterns ; Drinking water ; E coli ; Experiments ; Laboratories ; Laboratory tests ; Microorganisms ; Nanoparticles ; Nitrates ; Photocatalysis ; Pilot plants ; Radiation ; Scanning electron microscopy ; Sol-gel processes ; Solar radiation ; Water sampling ; X-ray diffraction</subject><ispartof>Materials, 2019-06, Vol.12 (13), p.2103</ispartof><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2019 by the authors. 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c406t-d195093dcc79a9dead3a7c815c11747a08007c5ed2b22bebd884bce583cf540d3</citedby><cites>FETCH-LOGICAL-c406t-d195093dcc79a9dead3a7c815c11747a08007c5ed2b22bebd884bce583cf540d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6651469/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6651469/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31261908$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Gastelo, Elmer</creatorcontrib><creatorcontrib>Montes de Oca, Juan</creatorcontrib><creatorcontrib>Carpio, Edward</creatorcontrib><creatorcontrib>Espinoza, Juan</creatorcontrib><creatorcontrib>García, Pilar</creatorcontrib><creatorcontrib>Ponce, Silvia</creatorcontrib><creatorcontrib>Rodriguez, Juan</creatorcontrib><title>Elimination of Escherichia coli in Water Using Cobalt Ferrite Nanoparticles: Laboratory and Pilot Plant Experiments</title><title>Materials</title><addtitle>Materials (Basel)</addtitle><description>This paper focuses on the synthesis of cobalt ferrite nanoparticles by the sol-gel method and their photocatalytic activity to eliminate bacteria in aqueous media at two different scales: in a laboratory reactor and a solar pilot plant. Cobalt ferrite nanoparticles were prepared using Co(II) and Fe(II) salts as precursors and cetyltrimethyl ammonium bromide as a surfactant. The obtained nanoparticles were characterized by X-ray diffraction, scanning and transmission electron microscopy.
(
) strain ATCC 22922 was used as model bacteria for contact biocidal analysis carried out by disk diffusion method and photocatalysis under an ultraviolet A (UV-A) lamp for laboratory analysis and solar radiation (radiation below 350 W/m
in a typical cloudy day) for the pilot plant analysis. The results showed that cobalt ferrite nanoparticles have an average diameter of (36 ± 20) nm and the X-ray diffraction pattern shows a cubic spinel structure. Using the disk diffusion technique, it was obtained inhibition zones of (17 ± 2) mm diameter. Results confirm the photocatalytic elimination of
in water samples with remaining bacteria below 1% of the initial concentration during the experiment time (30 min for laboratory tests and 1.5 h for pilot plant tests).</description><subject>Ammonium bromides</subject><subject>Aqueous solutions</subject><subject>Bacteria</subject><subject>Biocides</subject><subject>Catalytic activity</subject><subject>Cobalt ferrites</subject><subject>Composite materials</subject><subject>Diffraction patterns</subject><subject>Drinking water</subject><subject>E coli</subject><subject>Experiments</subject><subject>Laboratories</subject><subject>Laboratory tests</subject><subject>Microorganisms</subject><subject>Nanoparticles</subject><subject>Nitrates</subject><subject>Photocatalysis</subject><subject>Pilot plants</subject><subject>Radiation</subject><subject>Scanning electron microscopy</subject><subject>Sol-gel processes</subject><subject>Solar radiation</subject><subject>Water sampling</subject><subject>X-ray diffraction</subject><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkU9rVDEUxYMottRu_AAScCPC2Nzk_UlcCGWYqjDULiwuw31JppOSl4xJRuy3N6W1tmZzA_fHuedwCHkN7IMQip3MCBwEByaekUNQaliA6rrnj_4H5LiUa9aeECC5ekkOBPABFJOHpKyCn33E6lOkaUNXxWxd9mbrkZoUPPWR_sDqMr0sPl7RZZowVHrmcvbV0XOMaYe5ehNc-UjXOKWMNeUbitHSCx9SpRcBY6Wr37umO7tYyyvyYoOhuOP7eUQuz1bfl18W62-fvy5P1wvTsaEuLKieKWGNGRUq69AKHI2E3gCM3YhMMjaa3lk-cT65yUrZTcb1UphN3zErjsinO93dfpqdNe12xqB3zQbmG53Q66eb6Lf6Kv3Sw9BDN6gm8O5eIKefe1eqnn0xLrRALu2L5rwHYFwJ2dC3_6HXaZ9ji6d538lBqJapUe_vKJNTKdltHswA07d16n91NvjNY_sP6N_yxB9ap5wP</recordid><startdate>20190629</startdate><enddate>20190629</enddate><creator>Gastelo, Elmer</creator><creator>Montes de Oca, Juan</creator><creator>Carpio, Edward</creator><creator>Espinoza, Juan</creator><creator>García, Pilar</creator><creator>Ponce, Silvia</creator><creator>Rodriguez, Juan</creator><general>MDPI AG</general><general>MDPI</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20190629</creationdate><title>Elimination of Escherichia coli in Water Using Cobalt Ferrite Nanoparticles: Laboratory and Pilot Plant Experiments</title><author>Gastelo, Elmer ; Montes de Oca, Juan ; Carpio, Edward ; Espinoza, Juan ; García, Pilar ; Ponce, Silvia ; Rodriguez, Juan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c406t-d195093dcc79a9dead3a7c815c11747a08007c5ed2b22bebd884bce583cf540d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Ammonium bromides</topic><topic>Aqueous solutions</topic><topic>Bacteria</topic><topic>Biocides</topic><topic>Catalytic activity</topic><topic>Cobalt ferrites</topic><topic>Composite materials</topic><topic>Diffraction patterns</topic><topic>Drinking water</topic><topic>E coli</topic><topic>Experiments</topic><topic>Laboratories</topic><topic>Laboratory tests</topic><topic>Microorganisms</topic><topic>Nanoparticles</topic><topic>Nitrates</topic><topic>Photocatalysis</topic><topic>Pilot plants</topic><topic>Radiation</topic><topic>Scanning electron microscopy</topic><topic>Sol-gel processes</topic><topic>Solar radiation</topic><topic>Water sampling</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gastelo, Elmer</creatorcontrib><creatorcontrib>Montes de Oca, Juan</creatorcontrib><creatorcontrib>Carpio, Edward</creatorcontrib><creatorcontrib>Espinoza, Juan</creatorcontrib><creatorcontrib>García, Pilar</creatorcontrib><creatorcontrib>Ponce, Silvia</creatorcontrib><creatorcontrib>Rodriguez, Juan</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gastelo, Elmer</au><au>Montes de Oca, Juan</au><au>Carpio, Edward</au><au>Espinoza, Juan</au><au>García, Pilar</au><au>Ponce, Silvia</au><au>Rodriguez, Juan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Elimination of Escherichia coli in Water Using Cobalt Ferrite Nanoparticles: Laboratory and Pilot Plant Experiments</atitle><jtitle>Materials</jtitle><addtitle>Materials (Basel)</addtitle><date>2019-06-29</date><risdate>2019</risdate><volume>12</volume><issue>13</issue><spage>2103</spage><pages>2103-</pages><issn>1996-1944</issn><eissn>1996-1944</eissn><abstract>This paper focuses on the synthesis of cobalt ferrite nanoparticles by the sol-gel method and their photocatalytic activity to eliminate bacteria in aqueous media at two different scales: in a laboratory reactor and a solar pilot plant. Cobalt ferrite nanoparticles were prepared using Co(II) and Fe(II) salts as precursors and cetyltrimethyl ammonium bromide as a surfactant. The obtained nanoparticles were characterized by X-ray diffraction, scanning and transmission electron microscopy.
(
) strain ATCC 22922 was used as model bacteria for contact biocidal analysis carried out by disk diffusion method and photocatalysis under an ultraviolet A (UV-A) lamp for laboratory analysis and solar radiation (radiation below 350 W/m
in a typical cloudy day) for the pilot plant analysis. The results showed that cobalt ferrite nanoparticles have an average diameter of (36 ± 20) nm and the X-ray diffraction pattern shows a cubic spinel structure. Using the disk diffusion technique, it was obtained inhibition zones of (17 ± 2) mm diameter. Results confirm the photocatalytic elimination of
in water samples with remaining bacteria below 1% of the initial concentration during the experiment time (30 min for laboratory tests and 1.5 h for pilot plant tests).</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>31261908</pmid><doi>10.3390/ma12132103</doi><oa>free_for_read</oa></addata></record> |
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| source | PubMed Central Open Access; MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Ammonium bromides Aqueous solutions Bacteria Biocides Catalytic activity Cobalt ferrites Composite materials Diffraction patterns Drinking water E coli Experiments Laboratories Laboratory tests Microorganisms Nanoparticles Nitrates Photocatalysis Pilot plants Radiation Scanning electron microscopy Sol-gel processes Solar radiation Water sampling X-ray diffraction |
| title | Elimination of Escherichia coli in Water Using Cobalt Ferrite Nanoparticles: Laboratory and Pilot Plant Experiments |
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