Co-adsorption and interaction mechanism of cadmium and sulfamethazine onto activated carbon surface
Owing to their diverse functional groups, antibiotics can easily form complexes with heavy metals; the complexation alters the migration and transformation behavior of both antibiotics and heavy metals. In this study, we investigated the co-adsorption mechanism of sulfamethazine (SMT) and cadmium (C...
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| Veröffentlicht in: | Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2021-06, Vol.619, p.126540, Article 126540 |
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| container_title | Colloids and surfaces. A, Physicochemical and engineering aspects |
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| creator | Xu, Zisong Huang, Wenyu Xie, Hongjie Feng, Xiaoqing Wang, Shuangfei Song, Hainong Xiong, Jianhua Mailhot, Gilles |
| description | Owing to their diverse functional groups, antibiotics can easily form complexes with heavy metals; the complexation alters the migration and transformation behavior of both antibiotics and heavy metals. In this study, we investigated the co-adsorption mechanism of sulfamethazine (SMT) and cadmium (Cd2+) heavy metal ions and created an ideal water model containing two major contaminants: sulfamethazine and heavy metal cadmium ions. Combined with the experimental analysis of the interaction mechanism, the results indicate the heterogeneous multilayer adsorption of SMT on the surface of activated carbon (AC). The bridging role of cadmium ions promotes the adsorption of SMT through the formation of SMT-Cd2+-AC ternary complexes on the surface of activated carbon. Characterization experiments provided further insight into the adsorption behavior of Cd2+ and SMT on activated carbon, revealing a strong correlation between the Cd2+-SMT complexation and the SMT adsorption capacity. These results indicate that the effects of the coexistence of antibiotics and heavy metal ions should be fully taken into account when investigating the environmental behavior of antibiotics and heavy metal ions.
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| doi_str_mv | 10.1016/j.colsurfa.2021.126540 |
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[Display omitted]</description><subject>Adsorption</subject><subject>Antibiotics</subject><subject>Bridging</subject><subject>Chemical Sciences</subject><subject>Chemistry</subject><subject>Chemistry, Physical</subject><subject>Complexation</subject><subject>Heavy metal</subject><subject>or physical chemistry</subject><subject>Physical Sciences</subject><subject>Science & Technology</subject><subject>Theoretical and</subject><issn>0927-7757</issn><issn>1873-4359</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>HGBXW</sourceid><recordid>eNqNkE1r3DAQQEVpodu0f6H4Woo3kiVLq1uDyRcs5JKcxVgesVrWVpC0W9pfH3md5tqcxIj3huER8p3RNaNMXu7XNhzSMTpYN7Rha9bIVtAPZMU2iteCt_ojWVHdqFqpVn0mX1LaU0pFq_SK2C7UMKQQn7MPUwXTUPkpYwR7nke0O5h8GqvgKgvD6I_jGUrHg4MR8w7--gmrMOVQzc4JMg6FjH2xz0dZ_Eo-OTgk_Pb6XpCnm-vH7q7ePtzed1fb2nItco2O617yfsOkptyhbvoWtGCtRMc0hcFuGpRcWdcKrV1DNTiAQWLPVSs48gvyY9m7g4N5jn6E-McE8ObuamvmP8pZ2cfZiRVWLqyNIaWI7k1g1MxZzd78y2rmrGbJWsSfi_gb--CS9ThZfJNLVykEU1rROXGhN--nO59hrt6F45SL-mtRsSQ7eYzmVR98RJvNEPz_bn0B3FOmnw</recordid><startdate>20210620</startdate><enddate>20210620</enddate><creator>Xu, Zisong</creator><creator>Huang, Wenyu</creator><creator>Xie, Hongjie</creator><creator>Feng, Xiaoqing</creator><creator>Wang, Shuangfei</creator><creator>Song, Hainong</creator><creator>Xiong, Jianhua</creator><creator>Mailhot, Gilles</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-8179-8880</orcidid></search><sort><creationdate>20210620</creationdate><title>Co-adsorption and interaction mechanism of cadmium and sulfamethazine onto activated carbon surface</title><author>Xu, Zisong ; Huang, Wenyu ; Xie, Hongjie ; Feng, Xiaoqing ; Wang, Shuangfei ; Song, Hainong ; Xiong, Jianhua ; Mailhot, Gilles</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c394t-ef39b63b816903fe92b5a94156ef190adc82e637cf5499f209afaad6eb37543e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adsorption</topic><topic>Antibiotics</topic><topic>Bridging</topic><topic>Chemical Sciences</topic><topic>Chemistry</topic><topic>Chemistry, Physical</topic><topic>Complexation</topic><topic>Heavy metal</topic><topic>or physical chemistry</topic><topic>Physical Sciences</topic><topic>Science & Technology</topic><topic>Theoretical and</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xu, Zisong</creatorcontrib><creatorcontrib>Huang, Wenyu</creatorcontrib><creatorcontrib>Xie, Hongjie</creatorcontrib><creatorcontrib>Feng, Xiaoqing</creatorcontrib><creatorcontrib>Wang, Shuangfei</creatorcontrib><creatorcontrib>Song, Hainong</creatorcontrib><creatorcontrib>Xiong, Jianhua</creatorcontrib><creatorcontrib>Mailhot, Gilles</creatorcontrib><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Web of Science - Science Citation Index Expanded - 2021</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Colloids and surfaces. A, Physicochemical and engineering aspects</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xu, Zisong</au><au>Huang, Wenyu</au><au>Xie, Hongjie</au><au>Feng, Xiaoqing</au><au>Wang, Shuangfei</au><au>Song, Hainong</au><au>Xiong, Jianhua</au><au>Mailhot, Gilles</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Co-adsorption and interaction mechanism of cadmium and sulfamethazine onto activated carbon surface</atitle><jtitle>Colloids and surfaces. A, Physicochemical and engineering aspects</jtitle><stitle>COLLOID SURFACE A</stitle><date>2021-06-20</date><risdate>2021</risdate><volume>619</volume><spage>126540</spage><pages>126540-</pages><artnum>126540</artnum><issn>0927-7757</issn><eissn>1873-4359</eissn><abstract>Owing to their diverse functional groups, antibiotics can easily form complexes with heavy metals; the complexation alters the migration and transformation behavior of both antibiotics and heavy metals. In this study, we investigated the co-adsorption mechanism of sulfamethazine (SMT) and cadmium (Cd2+) heavy metal ions and created an ideal water model containing two major contaminants: sulfamethazine and heavy metal cadmium ions. Combined with the experimental analysis of the interaction mechanism, the results indicate the heterogeneous multilayer adsorption of SMT on the surface of activated carbon (AC). The bridging role of cadmium ions promotes the adsorption of SMT through the formation of SMT-Cd2+-AC ternary complexes on the surface of activated carbon. Characterization experiments provided further insight into the adsorption behavior of Cd2+ and SMT on activated carbon, revealing a strong correlation between the Cd2+-SMT complexation and the SMT adsorption capacity. These results indicate that the effects of the coexistence of antibiotics and heavy metal ions should be fully taken into account when investigating the environmental behavior of antibiotics and heavy metal ions.
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| subjects | Adsorption Antibiotics Bridging Chemical Sciences Chemistry Chemistry, Physical Complexation Heavy metal or physical chemistry Physical Sciences Science & Technology Theoretical and |
| title | Co-adsorption and interaction mechanism of cadmium and sulfamethazine onto activated carbon surface |
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