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Synergistic photocatalysis of a hydrochar/CeO2 composite for dye degradation under visible light
The synthesis and characterization of a hydrochar/CeO 2 composite along with its evaluation in methylene blue degradation under visible light are presented. The methodology consisted of a single-pass hydrothermal method, having as synthesis conditions 9 h of reaction time, 210 °C, autogenous pressur...
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| Published in: | Environmental science and pollution research international 2024-03, Vol.31 (11), p.16453-16472 |
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| cites | cdi_FETCH-LOGICAL-c385t-15e03e1e42087549fa84a66dc920e275dd09b3c8f311aaab3b37190a97265d893 |
| container_end_page | 16472 |
| container_issue | 11 |
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| container_title | Environmental science and pollution research international |
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| creator | Sánchez-Silva, Jonathan Michel Ojeda-Galván, Hiram Joazet Villabona-Leal, Edgar Giovanny Labrada-Delgado, Gladis Judith Aguilar-Maruri, Saul Alejandro Fuentes-Ramírez, Rosalba González-Ortega, Omar López-Ramón, María Victoria Ocampo-Pérez, Raúl |
| description | The synthesis and characterization of a hydrochar/CeO
2
composite along with its evaluation in methylene blue degradation under visible light are presented. The methodology consisted of a single-pass hydrothermal method, having as synthesis conditions 9 h of reaction time, 210 °C, autogenous pressure, and a biomass/CeO
2
ratio of 100:1. The composite characterization revealed good dispersion of CeO
2
in the carbonaceous matrix and significant synergy in the composite activation using visible irradiation. The photodegradation experiments showed an efficiency of 98% for white LED light, 91% for UV light, 96% for solar irradiation, and 85% for blue LED light using as conditions pH 7.0, 50 mg of composite, 50 mL of solution, 10 mg/L of dye initial concentration, and 120 min of contact time. Meanwhile, the reusability experiments evidenced a reuse capacity of up to five times with a constant photodegradation efficiency (99%); moreover, it was determined that the presence of electrolytes at pH below 7.0 during degradation negatively affected methylene blue degradation. Finally, the results of this work demonstrate that the hydrochar/CeO
2
composite can be synthesized by a green method and used for the efficient treatment of water contaminated with methylene blue. |
| doi_str_mv | 10.1007/s11356-024-32281-6 |
| format | article |
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2
composite along with its evaluation in methylene blue degradation under visible light are presented. The methodology consisted of a single-pass hydrothermal method, having as synthesis conditions 9 h of reaction time, 210 °C, autogenous pressure, and a biomass/CeO
2
ratio of 100:1. The composite characterization revealed good dispersion of CeO
2
in the carbonaceous matrix and significant synergy in the composite activation using visible irradiation. The photodegradation experiments showed an efficiency of 98% for white LED light, 91% for UV light, 96% for solar irradiation, and 85% for blue LED light using as conditions pH 7.0, 50 mg of composite, 50 mL of solution, 10 mg/L of dye initial concentration, and 120 min of contact time. Meanwhile, the reusability experiments evidenced a reuse capacity of up to five times with a constant photodegradation efficiency (99%); moreover, it was determined that the presence of electrolytes at pH below 7.0 during degradation negatively affected methylene blue degradation. Finally, the results of this work demonstrate that the hydrochar/CeO
2
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2
composite along with its evaluation in methylene blue degradation under visible light are presented. The methodology consisted of a single-pass hydrothermal method, having as synthesis conditions 9 h of reaction time, 210 °C, autogenous pressure, and a biomass/CeO
2
ratio of 100:1. The composite characterization revealed good dispersion of CeO
2
in the carbonaceous matrix and significant synergy in the composite activation using visible irradiation. The photodegradation experiments showed an efficiency of 98% for white LED light, 91% for UV light, 96% for solar irradiation, and 85% for blue LED light using as conditions pH 7.0, 50 mg of composite, 50 mL of solution, 10 mg/L of dye initial concentration, and 120 min of contact time. Meanwhile, the reusability experiments evidenced a reuse capacity of up to five times with a constant photodegradation efficiency (99%); moreover, it was determined that the presence of electrolytes at pH below 7.0 during degradation negatively affected methylene blue degradation. Finally, the results of this work demonstrate that the hydrochar/CeO
2
composite can be synthesized by a green method and used for the efficient treatment of water contaminated with methylene blue.</description><subject>Aquatic Pollution</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Cerium oxides</subject><subject>Dyes</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Electrolytes</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>hot water treatment</subject><subject>Irradiation</subject><subject>Light emitting diodes</subject><subject>Methylene blue</subject><subject>photocatalysis</subject><subject>Photodegradation</subject><subject>photolysis</subject><subject>Radiation</subject><subject>Research Article</subject><subject>Solar radiation</subject><subject>Synthesis</subject><subject>Ultraviolet radiation</subject><subject>Waste Water Technology</subject><subject>Water Management</subject><subject>Water pollution</subject><subject>Water Pollution Control</subject><issn>1614-7499</issn><issn>0944-1344</issn><issn>1614-7499</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqFkT1PwzAURSMEEqXwB5gssbCE-tlxEo-o4kuq1AGYjWu_JK7SuNgpUv49gSKBGGB6dzj3Sk8nSc6BXgGlxSwCcJGnlGUpZ6yEND9IJpBDlhaZlIc_8nFyEuOaUkYlKybJy-PQYahd7J0h28b33uhet0N0kfiKaNIMNnjT6DCb45IR4zdbH12PpPKB2AGJxTpoq3vnO7LrLAby5qJbtUhaVzf9aXJU6Tbi2dedJs-3N0_z-3SxvHuYXy9Sw0vRpyCQcgTMGC0LkclKl5nOc2sko8gKYS2VK27KigNorVd8xQuQVMuC5cKWkk-Ty_3uNvjXHcZebVw02La6Q7-LioPgOQWQ4l-UScY5y0qajejFL3Ttd6EbHxkpDgxkKYqRYnvKBB9jwEptg9voMCig6sOP2vtRox_16UflY4nvS3GEuxrD9_QfrXePx5Iv</recordid><startdate>20240301</startdate><enddate>20240301</enddate><creator>Sánchez-Silva, Jonathan Michel</creator><creator>Ojeda-Galván, Hiram Joazet</creator><creator>Villabona-Leal, Edgar Giovanny</creator><creator>Labrada-Delgado, Gladis Judith</creator><creator>Aguilar-Maruri, Saul Alejandro</creator><creator>Fuentes-Ramírez, Rosalba</creator><creator>González-Ortega, Omar</creator><creator>López-Ramón, María Victoria</creator><creator>Ocampo-Pérez, Raúl</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7SN</scope><scope>7T7</scope><scope>7TV</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>M7N</scope><scope>P64</scope><scope>7X8</scope><scope>7S9</scope><scope>L.6</scope><orcidid>https://orcid.org/0000-0003-2033-7527</orcidid></search><sort><creationdate>20240301</creationdate><title>Synergistic photocatalysis of a hydrochar/CeO2 composite for dye degradation under visible light</title><author>Sánchez-Silva, Jonathan Michel ; 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2
composite along with its evaluation in methylene blue degradation under visible light are presented. The methodology consisted of a single-pass hydrothermal method, having as synthesis conditions 9 h of reaction time, 210 °C, autogenous pressure, and a biomass/CeO
2
ratio of 100:1. The composite characterization revealed good dispersion of CeO
2
in the carbonaceous matrix and significant synergy in the composite activation using visible irradiation. The photodegradation experiments showed an efficiency of 98% for white LED light, 91% for UV light, 96% for solar irradiation, and 85% for blue LED light using as conditions pH 7.0, 50 mg of composite, 50 mL of solution, 10 mg/L of dye initial concentration, and 120 min of contact time. Meanwhile, the reusability experiments evidenced a reuse capacity of up to five times with a constant photodegradation efficiency (99%); moreover, it was determined that the presence of electrolytes at pH below 7.0 during degradation negatively affected methylene blue degradation. Finally, the results of this work demonstrate that the hydrochar/CeO
2
composite can be synthesized by a green method and used for the efficient treatment of water contaminated with methylene blue.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s11356-024-32281-6</doi><tpages>20</tpages><orcidid>https://orcid.org/0000-0003-2033-7527</orcidid></addata></record> |
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| ispartof | Environmental science and pollution research international, 2024-03, Vol.31 (11), p.16453-16472 |
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| source | ABI/INFORM Global; Springer Link |
| subjects | Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution Cerium oxides Dyes Earth and Environmental Science Ecotoxicology Electrolytes Environment Environmental Chemistry Environmental Health hot water treatment Irradiation Light emitting diodes Methylene blue photocatalysis Photodegradation photolysis Radiation Research Article Solar radiation Synthesis Ultraviolet radiation Waste Water Technology Water Management Water pollution Water Pollution Control |
| title | Synergistic photocatalysis of a hydrochar/CeO2 composite for dye degradation under visible light |
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