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Ultrasound enhanced heterogeneous activation of peroxydisulfate by magnetite catalyst for the degradation of tetracycline in water
[Display omitted] ► Na 2S 2O 8 was activated by magnetite and ultrasound for the degradation of tetracycline. ► The presence of different types of radical scavengers would inhibit the degradation rate. ► The oxidation mechanism on the surface of the heterogeneous catalyst is scarce. The removal of t...
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| Published in: | Separation and purification technology 2012-01, Vol.84 (9), p.147-152 |
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| cited_by | cdi_FETCH-LOGICAL-c459t-355dd02d6139b9fd9e0733e81308db5399388dda7a28425464b33d99d187a5193 |
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| cites | cdi_FETCH-LOGICAL-c459t-355dd02d6139b9fd9e0733e81308db5399388dda7a28425464b33d99d187a5193 |
| container_end_page | 152 |
| container_issue | 9 |
| container_start_page | 147 |
| container_title | Separation and purification technology |
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| creator | Hou, Liwei Zhang, Hui Xue, Xiaofei |
| description | [Display omitted]
► Na
2S
2O
8 was activated by magnetite and ultrasound for the degradation of tetracycline. ► The presence of different types of radical scavengers would inhibit the degradation rate. ► The oxidation mechanism on the surface of the heterogeneous catalyst is scarce.
The removal of tetracycline by magnetite (Fe
3O
4) activated peroxydisulfate (Na
2S
2O
8) in the presence of ultrasound irradiation has been performed in this study. The effects of Na
2S
2O
8 concentration, Fe
3O
4 addition, ultrasonic power, initial concentration and initial pH on the degradation of tetracycline were investigated. The results showed that tetracycline removal rate increased with the increase of Fe
3O
4 dosage, but decreased with the increase of initial pH and initial tetracycline concentration. With the optimum values of Na
2S
2O
8 concentration and ultrasound power, the highest degradation rate can be achieved. The scavenging effect was examined by using ethanol,
tert-butyl alcohol and 1,4-benzoquinone to evaluate the roles of sulfate radicals, hydroxyl radicals and superoxide radicals. The results indicated that sulfate radicals and the hydroxyl radicals played important roles in the degradation of tetracycline by Fe
3O
4/Na
2S
2O
8/US process. |
| doi_str_mv | 10.1016/j.seppur.2011.06.023 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1010877077</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S138358661100373X</els_id><sourcerecordid>1010877077</sourcerecordid><originalsourceid>FETCH-LOGICAL-c459t-355dd02d6139b9fd9e0733e81308db5399388dda7a28425464b33d99d187a5193</originalsourceid><addsrcrecordid>eNp9kTuP1DAQgCMEEsfBP0DCDRJNgh0nfjRI6HQ8pJMoYGtr1p7sepWNg-0cpOWX4yWnK6lsa755-Juqes1owygT709NwnleYtNSxhoqGtryJ9UVU5LXXOruablzxeteCfG8epHSiVImmWqvqj-7MUdIYZkcwekIk0VHjpgxhgNOGJZEwGZ_D9mHiYSBzCXye3U-LeMAGcl-JWc4TJh9eVjIMK4pkyFEko9IHB4iuMfkjKWZXe3oJyR-Ir9KhfiyejbAmPDVw3ld7T7d_rj5Ut99-_z15uNdbbte55r3vXO0dYJxvdeD00gl56gYp8rte641V8o5kNCqru070e05d1q7ogF6pvl19W6rO8fwc8GUzdkni-MI__5pikqqpKRSFrTbUBtDShEHM0d_hrgW6MIJczKbcnNRbqgwRXlJe_vQAZKFcYhFp0-PuWWoTip9meTNxg0QDBxiYXbfS6G-rKVtqegK8WEjsAi59xhNsh4vy_ERbTYu-P-P8hekmKUc</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1010877077</pqid></control><display><type>article</type><title>Ultrasound enhanced heterogeneous activation of peroxydisulfate by magnetite catalyst for the degradation of tetracycline in water</title><source>ScienceDirect Freedom Collection 2022-2024</source><creator>Hou, Liwei ; Zhang, Hui ; Xue, Xiaofei</creator><creatorcontrib>Hou, Liwei ; Zhang, Hui ; Xue, Xiaofei</creatorcontrib><description>[Display omitted]
► Na
2S
2O
8 was activated by magnetite and ultrasound for the degradation of tetracycline. ► The presence of different types of radical scavengers would inhibit the degradation rate. ► The oxidation mechanism on the surface of the heterogeneous catalyst is scarce.
The removal of tetracycline by magnetite (Fe
3O
4) activated peroxydisulfate (Na
2S
2O
8) in the presence of ultrasound irradiation has been performed in this study. The effects of Na
2S
2O
8 concentration, Fe
3O
4 addition, ultrasonic power, initial concentration and initial pH on the degradation of tetracycline were investigated. The results showed that tetracycline removal rate increased with the increase of Fe
3O
4 dosage, but decreased with the increase of initial pH and initial tetracycline concentration. With the optimum values of Na
2S
2O
8 concentration and ultrasound power, the highest degradation rate can be achieved. The scavenging effect was examined by using ethanol,
tert-butyl alcohol and 1,4-benzoquinone to evaluate the roles of sulfate radicals, hydroxyl radicals and superoxide radicals. The results indicated that sulfate radicals and the hydroxyl radicals played important roles in the degradation of tetracycline by Fe
3O
4/Na
2S
2O
8/US process.</description><identifier>ISSN: 1383-5866</identifier><identifier>EISSN: 1873-3794</identifier><identifier>DOI: 10.1016/j.seppur.2011.06.023</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Applied sciences ; Catalysis ; catalysts ; Catalytic reactions ; Chemical engineering ; Chemistry ; ethanol ; Exact sciences and technology ; General and physical chemistry ; hydroxyl radicals ; iron oxides ; irradiation ; Magnetite ; Reactors ; Sulfate radicals ; superoxide anion ; Tetracycline ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; ultrasonics ; Ultrasound</subject><ispartof>Separation and purification technology, 2012-01, Vol.84 (9), p.147-152</ispartof><rights>2011</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c459t-355dd02d6139b9fd9e0733e81308db5399388dda7a28425464b33d99d187a5193</citedby><cites>FETCH-LOGICAL-c459t-355dd02d6139b9fd9e0733e81308db5399388dda7a28425464b33d99d187a5193</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,780,784,789,790,23930,23931,25140,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25447899$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Hou, Liwei</creatorcontrib><creatorcontrib>Zhang, Hui</creatorcontrib><creatorcontrib>Xue, Xiaofei</creatorcontrib><title>Ultrasound enhanced heterogeneous activation of peroxydisulfate by magnetite catalyst for the degradation of tetracycline in water</title><title>Separation and purification technology</title><description>[Display omitted]
► Na
2S
2O
8 was activated by magnetite and ultrasound for the degradation of tetracycline. ► The presence of different types of radical scavengers would inhibit the degradation rate. ► The oxidation mechanism on the surface of the heterogeneous catalyst is scarce.
The removal of tetracycline by magnetite (Fe
3O
4) activated peroxydisulfate (Na
2S
2O
8) in the presence of ultrasound irradiation has been performed in this study. The effects of Na
2S
2O
8 concentration, Fe
3O
4 addition, ultrasonic power, initial concentration and initial pH on the degradation of tetracycline were investigated. The results showed that tetracycline removal rate increased with the increase of Fe
3O
4 dosage, but decreased with the increase of initial pH and initial tetracycline concentration. With the optimum values of Na
2S
2O
8 concentration and ultrasound power, the highest degradation rate can be achieved. The scavenging effect was examined by using ethanol,
tert-butyl alcohol and 1,4-benzoquinone to evaluate the roles of sulfate radicals, hydroxyl radicals and superoxide radicals. The results indicated that sulfate radicals and the hydroxyl radicals played important roles in the degradation of tetracycline by Fe
3O
4/Na
2S
2O
8/US process.</description><subject>Applied sciences</subject><subject>Catalysis</subject><subject>catalysts</subject><subject>Catalytic reactions</subject><subject>Chemical engineering</subject><subject>Chemistry</subject><subject>ethanol</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>hydroxyl radicals</subject><subject>iron oxides</subject><subject>irradiation</subject><subject>Magnetite</subject><subject>Reactors</subject><subject>Sulfate radicals</subject><subject>superoxide anion</subject><subject>Tetracycline</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><subject>ultrasonics</subject><subject>Ultrasound</subject><issn>1383-5866</issn><issn>1873-3794</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kTuP1DAQgCMEEsfBP0DCDRJNgh0nfjRI6HQ8pJMoYGtr1p7sepWNg-0cpOWX4yWnK6lsa755-Juqes1owygT709NwnleYtNSxhoqGtryJ9UVU5LXXOruablzxeteCfG8epHSiVImmWqvqj-7MUdIYZkcwekIk0VHjpgxhgNOGJZEwGZ_D9mHiYSBzCXye3U-LeMAGcl-JWc4TJh9eVjIMK4pkyFEko9IHB4iuMfkjKWZXe3oJyR-Ir9KhfiyejbAmPDVw3ld7T7d_rj5Ut99-_z15uNdbbte55r3vXO0dYJxvdeD00gl56gYp8rte641V8o5kNCqru070e05d1q7ogF6pvl19W6rO8fwc8GUzdkni-MI__5pikqqpKRSFrTbUBtDShEHM0d_hrgW6MIJczKbcnNRbqgwRXlJe_vQAZKFcYhFp0-PuWWoTip9meTNxg0QDBxiYXbfS6G-rKVtqegK8WEjsAi59xhNsh4vy_ERbTYu-P-P8hekmKUc</recordid><startdate>201201</startdate><enddate>201201</enddate><creator>Hou, Liwei</creator><creator>Zhang, Hui</creator><creator>Xue, Xiaofei</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>201201</creationdate><title>Ultrasound enhanced heterogeneous activation of peroxydisulfate by magnetite catalyst for the degradation of tetracycline in water</title><author>Hou, Liwei ; Zhang, Hui ; Xue, Xiaofei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c459t-355dd02d6139b9fd9e0733e81308db5399388dda7a28425464b33d99d187a5193</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Applied sciences</topic><topic>Catalysis</topic><topic>catalysts</topic><topic>Catalytic reactions</topic><topic>Chemical engineering</topic><topic>Chemistry</topic><topic>ethanol</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>hydroxyl radicals</topic><topic>iron oxides</topic><topic>irradiation</topic><topic>Magnetite</topic><topic>Reactors</topic><topic>Sulfate radicals</topic><topic>superoxide anion</topic><topic>Tetracycline</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><topic>ultrasonics</topic><topic>Ultrasound</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hou, Liwei</creatorcontrib><creatorcontrib>Zhang, Hui</creatorcontrib><creatorcontrib>Xue, Xiaofei</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Separation and purification technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hou, Liwei</au><au>Zhang, Hui</au><au>Xue, Xiaofei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ultrasound enhanced heterogeneous activation of peroxydisulfate by magnetite catalyst for the degradation of tetracycline in water</atitle><jtitle>Separation and purification technology</jtitle><date>2012-01</date><risdate>2012</risdate><volume>84</volume><issue>9</issue><spage>147</spage><epage>152</epage><pages>147-152</pages><issn>1383-5866</issn><eissn>1873-3794</eissn><abstract>[Display omitted]
► Na
2S
2O
8 was activated by magnetite and ultrasound for the degradation of tetracycline. ► The presence of different types of radical scavengers would inhibit the degradation rate. ► The oxidation mechanism on the surface of the heterogeneous catalyst is scarce.
The removal of tetracycline by magnetite (Fe
3O
4) activated peroxydisulfate (Na
2S
2O
8) in the presence of ultrasound irradiation has been performed in this study. The effects of Na
2S
2O
8 concentration, Fe
3O
4 addition, ultrasonic power, initial concentration and initial pH on the degradation of tetracycline were investigated. The results showed that tetracycline removal rate increased with the increase of Fe
3O
4 dosage, but decreased with the increase of initial pH and initial tetracycline concentration. With the optimum values of Na
2S
2O
8 concentration and ultrasound power, the highest degradation rate can be achieved. The scavenging effect was examined by using ethanol,
tert-butyl alcohol and 1,4-benzoquinone to evaluate the roles of sulfate radicals, hydroxyl radicals and superoxide radicals. The results indicated that sulfate radicals and the hydroxyl radicals played important roles in the degradation of tetracycline by Fe
3O
4/Na
2S
2O
8/US process.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.seppur.2011.06.023</doi><tpages>6</tpages></addata></record> |
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| ispartof | Separation and purification technology, 2012-01, Vol.84 (9), p.147-152 |
| issn | 1383-5866 1873-3794 |
| language | eng |
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| source | ScienceDirect Freedom Collection 2022-2024 |
| subjects | Applied sciences Catalysis catalysts Catalytic reactions Chemical engineering Chemistry ethanol Exact sciences and technology General and physical chemistry hydroxyl radicals iron oxides irradiation Magnetite Reactors Sulfate radicals superoxide anion Tetracycline Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ultrasonics Ultrasound |
| title | Ultrasound enhanced heterogeneous activation of peroxydisulfate by magnetite catalyst for the degradation of tetracycline in water |
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