Embedded carbon in a carbon nitride hollow sphere for enhanced charge separation and photocatalytic water splitting

Abstract

Graphitic carbon was fully embedded inside the graphitic carbon nitride hollow sphere via the modified shape-selective templating method in order to enchance visible light absorption and promote charge seperation.

Bridging-nitrogen defects modified graphitic carbon nitride nanosheet for boosted photocatalytic hydrogen production

“…Ag/AgCl electrode, photocatalysts coated indium tin oxide (ITO) glass, platinum sheet electrode and Na2SO4 solution (0.1 M) were respectively utilized as the reference electrode, the working electrode, the counter electrode and the electrolyte. The working electrode was prepared through electroplating according to our previous work [17]. Photocurrent density was recorded by using a 420 nm LED lamp as the light source.…”

“…10 m 2 /g), severe electron-hole recombination and weak visible-light absorption [15]. To achieve improved photoreactivity, diverse strategies were explored, for instance, morphological engineering [16][17][18][19],…”

In situ formation of 2-thiobarbituric acid incorporated g-C3N4 for enhanced visible-light-driven photocatalytic performance

“…12a illustrate that TBA/CN-3 presented an evident longer average lifetime of 7.44 ns compared to pure g-C 3 N 4 (5.29 ns), suggesting the highly efficient migration of the charge carriers. 56,57 The prolonged lifetime of photo-excited charge was possibly attributable to the established unique electron transfer pathway of N-C-S-C-N (or N-C-C-C-N) via the introduction of TBA (Fig. 1).…”

Ultrathin sulfur-doped holey carbon nitride nanosheets with superior photocatalytic hydrogen production from water

“…Thermolysis of various nitrogen-rich precursors could prepare g-C3N4 in large-scale, but the insufficient photoabsorption, high charge recombination rate and low quantum yield still suppress its photocatalytic performance [7][8][9]. To improve the efficiency, great efforts including nanostructural and surface modification have been devoted [10][11][12][13][14][15]. Two-dimensional nanosheets are a novel category of nanostructural materials and prevailing because of their unique layered features of intriguing surface, optical and electronic properties [16][17][18].…”