Improved photoelectrochemical cathodic protection properties of a flower-like SrTiO3 photoanode decorated With g-C3N4

Kong, Cunhui; Qing, Da; Su, Xinyue; Zhao, Yingna; Wang, Jiansheng; Zeng, Xiongfeng

doi:10.1016/j.jallcom.2022.166629

Cited by 8 publications

(1 citation statement)

References 48 publications

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“…Solar-to-chemicals/electricity oriented by photocatalysts has been regarded as a promising supplement for existing energy types [1][2][3][4][5][6][7][8][9][10][11][12][13]. Nowadays, the emerging graphitic carbon nitrides (g-C 3 N 4 ) have attracted numerous research attention [14,15], outperforming the traditional TiO 2 materials, particularly in the research fields of solar-driven H 2 evolution reaction (HER) [16][17][18][19], CO 2 reduction reaction (CRR) [20][21][22][23][24][25][26], N 2 reduction reaction (NRR) [27][28][29][30][31][32], photocathodic protection (PCP) [33][34][35][36][37], pollutant removal [38][39][40][41], and oxygen evolution reaction (OER) [42][43][44][45]. Despite the application discrepancy, they all share similarities until the electrons are involved in redox reactions in an aqueous solut...…”

Section: Introductionmentioning

confidence: 99%

Decade Milestone Advancement of Defect-Engineered g-C3N4 for Solar Catalytic Applications

Hou,

Gao,

et al. 2024

Nano-Micro Lett.

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Over the past decade, graphitic carbon nitride (g-C3N4) has emerged as a universal photocatalyst toward various sustainable carbo-neutral technologies. Despite solar applications discrepancy, g-C3N4 is still confronted with a general fatal issue of insufficient supply of thermodynamically active photocarriers due to its inferior solar harvesting ability and sluggish charge transfer dynamics. Fortunately, this could be significantly alleviated by the “all-in-one” defect engineering strategy, which enables a simultaneous amelioration of both textural uniqueness and intrinsic electronic band structures. To this end, we have summarized an unprecedently comprehensive discussion on defect controls including the vacancy/non-metallic dopant creation with optimized electronic band structure and electronic density, metallic doping with ultra-active coordinated environment (M–Nx, M–C2N2, M–O bonding), functional group grafting with optimized band structure, and promoted crystallinity with extended conjugation π system with weakened interlayered van der Waals interaction. Among them, the defect states induced by various defect types such as N vacancy, P/S/halogen dopants, and cyano group in boosting solar harvesting and accelerating photocarrier transfer have also been emphasized. More importantly, the shallow defect traps identified by femtosecond transient absorption spectra (fs-TAS) have also been highlighted. It is believed that this review would pave the way for future readers with a unique insight into a more precise defective g-C3N4 “customization”, motivating more profound thinking and flourishing research outputs on g-C3N4-based photocatalysis.

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