Photocatalytic oxidative desulfurization and denitrogenation of fuels over sodium doped graphitic carbon nitride nanosheets under visible light irradiation

One-pot synthesis of Mn3O4-coupled Ag2WO4 nanocomposite photocatalyst for enhanced photooxidative desulfurization of thiophene under visible light irradiation

“…under visible-light illumination using various photocatalysts compared to the present work are listed in Table 2 (Zhang et al 2019a;Lin et al 2016Lin et al , 2017Zhen et al 2018;Basaleh and Mohamed 2019;Saha et al 2019;Guo et al 2019). The values indicate that our prepared Mn 3 O 4 /Ag 2 WO 4 nanocomposite featuring the best among the reported photocatalysts for the oxidation of ThP.…”

“…The exploration for a competitive way for ThP elimination started in a boundless concern. The oxidative desulfurization process employing photocatalysis is one of the most talented and clean systems for environmental remediation compared to other counterparts (Kêdra-Królik et al 2011;Zeng et al 2017;Li et al 2019;Zhang et al 2019a;Lin et al 2012;Djouambi et al 2018). Nanocomposites consisting of nanoparticles are employed to develop novel environment-friendly chemical mechanical polishing slurries (Zhang et al2016a(Zhang et al , b, 2018(Zhang et al , 2019b, which is used to polish high-performance substrates used in semiconductor and microelectronics industries.…”

Desulfurization through Photocatalytic Oxidation: A Critical Review

“…Zhang et al synthesized Na-doped g-C 3 N 4 [Na(x)-CN] photocatalyst for desulfurization of TH, where x represents the mass ratio of NaCl/melamine precursor. [71] The Na(x)-CN nanosheets are helpful for the construction of an efficient fuel oil PODS system due to their 2D nanostructure ( Figure 3d). As is shown in Figure 3e, the Na(x)À CN samples display red shift at the absorption edges compared with pure g-C 3 N 4 , and this tendency becomes more obvious with the increasing Na doping concentration.…”

Synergetic effect of C60/g‐C3N4 nanowire composites for enhanced photocatalytic H2 evolution under visible light irradiation

“…Thus, Raman spectra of C 60 , g-C 3 N 4 and C 60 / g-C 3 N 4 -0.03 wt% nanocomposites were measured by 532 nm laser, as shown in Figure 2 (c). The Raman spectrum of C 60 samples shows three peaks that centered at 1423 cm À 1 , 1466 cm À 1 and 1567 cm À 1 corresponding to H g (7), A g (2) and H g (8) modes, respectively. [52] No Raman signal was found in the spectrum of g-C 3 N 4 due to the strong fluorescence effect.…”

“…[2][3][4] However, some shortcomings of g-C 3 N 4 , such as fast recombination of photoinduced electron/ hole pairs, low quantum efficiency and small specific surface area, restricted its application. [5][6][7] There were some strategies to improve its performance, such as elements doping (such as Na, [8,9] Ag, [10,11] B, [12] P, [13] S, [14][15][16] , N, [17] etc.) to tune its band structure, semiconductor coupling (such as TiO 2 , [18][19][20][21] Ag 3 PO 4 , [22][23][24] CdS, [25,26] (BiO) 2 CO 3 , [27] and phosphate, [28] etc.)…”