Combing oxygen vacancies on TiO2 nanorod arrays with g-C3N4 nanosheets for enhancing photoelectrochemical degradation of phenol. (April 2020)

• Record Type: Journal Article
• Authors: Qi, Fan; An, Weijia; Wang, Huan; Hu, Jinshan; Guo, Hongxia; Liu, Li; Cui, Wenquan
• Is Part Of: Materials science in semiconductor processing. Volume 109(2020)
• Publication Date: 2020-04
• Subjects: g-C3N4 nanosheets -- Oxygen vacancies -- TiO2 nanorods -- Z-Scheme heterojunction; Semiconductors -- Periodicals; Integrated circuits -- Materials -- Periodicals; Semiconducteurs -- Périodiques; Circuits intégrés -- Matériaux -- Périodiques; Electronic journals; 621.38152
• DOI: 10.1016/j.mssp.2020.104954
• Languages: English
• ISSNs: 1369-8001

Abstract

Abstract: We reported a novel TiO2-x /g-C3 N4 nanorod arrays photoelectrode by urea drop-calcined and NaBH4 reduction. Due to synergistic effect of the oxygen vacancies and the g-C3 N4 nanosheets, the TiO2-x /g-C3 N4 photoelectrode exhibited excellent photoelectrochemical property and photoelectrocatalytic activity. The photocurrent density of TiO2-x /g-C3 N4 was 6-fold and 1.5-fold higher than TiO2 and TiO2 /g-C3 N4, respectively. Meanwhile, the phenol degradation rate of TiO2-x /g-C3 N4 photoelectrodes was as high as 83% under the stimulated solar light. Besides, the oxygen vacancies could promote the formation of the Z-scheme heterojunction between the TiO2 nanorods and g-C3 N4 nanosheets.