4-chlorophenol removal from water using graphite and graphene oxides as photocatalysts.
Graphite and graphene oxides have been studied amply in the last decade, due to their diverse properties and possible applications. Recently, their functionality as photocatalytic materials in water splitting was reported. Research in these materials is increasing due to their band gap values around 1.8-4 eV, and therefore, these are comparable with other photocatalysts currently used in heterogeneous photocatalytic processes. Thus, this research reports the photocatalytic effectiveness of graphite oxide (GO) and graphene oxide (GEO) in the degradation of 4-chlorophenol (4-CP) in water. Under the conditions defined for this research, 92 and 97% of 4-CP were degraded with GO and GEO respectively, also 97% of total organic carbon was removed. In addition, by-products of 4-CP that produce a yellow solution obtained only using photolysis are eliminated by photocatalyst process with GO and GEO. The degradation of 4-CP was monitored by UV-Vis spectroscopy, High Performance Liquid Chromatography (HPLC) and Chemical Oxygen Demand (COD). Thus, photocatalytic activity to remove 4-CP from water employing GO and GEO without doping is successfully showed, and therefore, a new gate in research for these materials is opened.
Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Km.12 de la carretera Toluca-Atlacomulco, San Cayetano, 50200 Estado de México México ; División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Querétaro, Av. Tecnológico s/n Esq. M. Escobedo, Col. Centro Histórico, 76000 Querétaro, México ; Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, 76230 Querétaro, México.
Karina
K
Bustos-Ramírez
Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Km.12 de la carretera Toluca-Atlacomulco, San Cayetano, 50200 Estado de México México.
Carlos Eduardo
CE
Barrera-Díaz
Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, 76230 Querétaro, México.
Miguel
M
De Icaza-Herrera
División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Querétaro, Av. Tecnológico s/n Esq. M. Escobedo, Col. Centro Histórico, 76000 Querétaro, México ; Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, 76230 Querétaro, México.
Ana Laura
AL
Martínez-Hernández
Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Km.12 de la carretera Toluca-Atlacomulco, San Cayetano, 50200 Estado de México México.
Reyna
R
Natividad-Rangel
División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Querétaro, Av. Tecnológico s/n Esq. M. Escobedo, Col. Centro Histórico, 76000 Querétaro, México ; Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, 76230 Querétaro, México.
Carlos
C
Velasco-Santos
4-chlorophenol; Graphene oxide; Graphite oxide; Photocatalyst; Water pollution