Multiple photocatalytic applications of non-precious Cu-loaded g-C3N4/hydrogenated black TiO2 nanofiber heterostructure

Application of visible light active photocatalysis for water contaminants: A review

“…Concurrent to water treatment applications, the visible light active photocatalyst is also used in air purification (J. U. Choi et al, 2019;Pichat, 2019), hydrogen production (Lee et al, 2019;Reddy et al, 2020), and chlorine production (Chehade et al, 2020). Notwithstanding, visible light active photocatalyst still faces many challenges that have to be addressed in future and are summarized below:…”

“…It displays excellent red-shifted light absorption properties, mainly owing to hydrogenation dramatically changing the structural, chemical, electronic, and optical properties of TiO 2 nanoparticles (NPs), so it has a stronger visible light utilization ability (J. U. Choi et al, 2019;. However, according to the latest review, summarized by Rajaraman et al (2020), the synthesis of black TiO 2 is quite challenging and, in some cases, compared with pristine TiO 2 , the black TiO 2 actually showed reduced photoactivity.…”

Metallic Copper‐Containing Composite Photocatalysts: Fundamental, Materials Design, and Photoredox Applications

“…[70] During the reaction process, it is the generally necessary to flow protective gas such as N 2 [70] and Ar [71] in the reactor, or to extract the air from the reaction system to reach a vacuum state, [37d,72] so as to ensure that the Cu generated by the reaction is not oxidized by O 2 in the air. In addition, hole cancellants such as methanol [73] and triethanolamine (TEOA) [74] can be added to offset the possible oxidation of Cu caused by holes generated by semiconductor under photoexcitation, and reducing agents such as lactic acid can be added to ensure the generation of Cu nanoparticles. The advantage of this method is that Cu nanoparticles with a controllable particle size can be prepared.…”

Hematite nanoparticles decorated nitrogen-doped reduced graphene oxide/graphitic carbon nitride multifunctional heterostructure photocatalyst towards environmental applications

“…Recently, graphitic carbon nitride (g-C 3 N 4 ), a 2D layered sheet, has acquired much attention. [9][10][11][12][13][14][15][16][17] Under visible light illumination, g-C 3 N 4 sheets are renowned as outstanding photocatalysts for the degradation of various pollutants. 18,19 Thanks to g-C 3 N 4 for its suitable energy band gap of 2.7 eV, which allows it to be responsive toward the visible light source.…”