NDLI: Photoelectrocatalytic degradation of phenol-containing wastewater by TiO2/g-C3N4 hybrid heterostructure thin film

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Photoelectrocatalytic degradation of phenol-containing wastewater by TiO2/g-C3N4 hybrid heterostructure thin film

Content Provider	Semantic Scholar
Author	Wei, Zhen Yi Liang, Fenfen Liu, Yanfang Luo, Wenjiao Wang, Jun Yao, Wenqing Q. Zhu, Yongfa
Copyright Year	2017
Abstract	Abstract TiO 2 /g-C 3 N 4 (TCN) thin film electrode was fabricated via a surface hybridization and dip-coating method. Phenol could be completely mineralized and the pollutants in coking wastewater could be degraded quickly by TCN under simulated solar light and electric field. The characteristics of the photoelectrocatalytic (PEC) degradation of phenol-containing coking wastewater were investigated under visible light, ultraviolet light and simulated solar irradiation. The results showed that phenol was degraded completely by the TCN-0.3 with a 1.5 V bias in 1.5 h under simulated solar irradiation with 100% TOC removal rate. 45% of the TOC for the coking wastewater was removed by the TCN-0.3 with a 1.5 V bias under 5.0 h simulated solar irradiation, which was 2.45 and 5.69 times as high as that of the pure TiO 2 and g-C 3 N 4 , respectively. The surface hybrid heterojunction formed between TiO 2 and g-C 3 N 4 promotes the migration of the photogenerated electrons and holes and greatly improves the degradation efficiency with applied potential. The significant synergistic effect between the electrocatalytic and photocatalytic oxidation processes in PEC is conducive to electron-hole pair separation, producing the more active substances, such as hydroxyl radicals, and increases the degree of degradation and mineralization of phenolic compounds.
Starting Page	600
Ending Page	606
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1016/j.apcatb.2016.09.003
Volume Number	201
Alternate Webpage(s)	http://www.zhuyfgroup.com/uploadfile/2019/1217/20191217105217254.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.apcatb.2016.09.003
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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