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CONAHCYT; Consejo Nacional de Humanidades, Ciencias y Tecnologías; National Council for the Humanities, Sciences and Technologies; Consejo Nacional de Ciencia y Tecnología, CONACYT, (1078765); Consejo Nacional de Ciencia y Tecnología, Guatemala, CONCYT; Consejo Nacional de Ciencia y Tecnología, Paraguay, CONACYT, El CONACYT
Generically Dependent Continuant
Environmental Science and Pollution Research
RDF description of Synergistic photocatalysis of a hydrochar/CeO2 composite for dye degradation under visible light - http://orbis.uaslp.mx/vivo/individual/scopus12531
Synergistic photocatalysis of a hydrochar/CeO2 composite for dye degradation under visible light
methylene blue, 61-73-4; Methylene Blue,
The synthesis and characterization of a hydrochar/CeO2 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/CeO2 ratio of 100:1. The composite characterization revealed good dispersion of CeO2 in the carbonaceous matrix and significant synergy in the composite activation using visible irradiation. The photodegradation experiments showed an efficiency of 98%25 for white LED light, 91%25 for UV light, 96%25 for solar irradiation, and 85%25 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%25); 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/CeO2 composite can be synthesized by a green method and used for the efficient treatment of water contaminated with methylene blue.
CeO2; Green synthesis; Hydrochar composite; Hydrothermal carbonization; Methylene blue photodegradation; Visible light photocatalysis Blue Light; Light; Methylene Blue; Photolysis; Ultraviolet Rays; Aromatic compounds; Carbonization; Efficiency; Hydrothermal synthesis; Irradiation; Photocatalysis; Photodegradation; Reusability; Water treatment; methylene blue; Dye degradation; Green synthesis; Hydrochar composite; Hydrothermal carbonization; Methylene Blue; Methylene blue degradations; Methylene blue photodegradation; Photo degradation; Visible light; Visible-light photocatalysis; biomass; catalysis; cerium; composite; dye; light; photodegradation; wastewater treatment; water pollution; blue light; chemistry; light; photolysis; ultraviolet radiation; Cerium oxide
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