Effect of source material of g-C3N4 on the photocatalytic activity of ZnO/g-C3N4 thin film coated on stainless steel mesh substrate

One-Step Fabrication of the ZnO/g-C3N4 Composite for Visible Light-Responsive Photocatalytic Degradation of Bisphenol E in Aqueous Solution

“…The PL intensity is directly proportional to the electron–hole pairs recombination rate. Hence, PL spectra are one of the most effective parameters for investigation of the photogenerated electron–hole pairs migration, transfer, and recombination of photocatalysts. , Figure b shows the PL emission spectra of ZnO, g-C 3 N 4 , and the ZnO/g-C 3 N 4 composite after the degradation reaction of BPE in the range from 410 to 750 nm upon excitation at 360 nm. It was seen that the PL intensity of the ZnO/g-C 3 N 4 composite was significantly reduced relative to that of both ZnO and g-C 3 N 4 .…”

“…Recently, g-C 3 N 4 has received great attention as an interesting photocatalyst for wastewater detoxification, hydrogen production, and photoreduction of CO 2 under visible light irradiation. Pure g-C 3 N 4 possesses a moderate band gap of ∼2.7 eV, which enables it to be excited by visible light up to 460 nm. − Furthermore, metal-free g-C 3 N 4 has several features required for photocatalysis reactions, such as a π-conjugated electronic structure, layered crystal structure, low cost, nontoxic nature, high chemical and thermal stability, high electron conductivity, and facile fabrication. ,− However, the photocatalytic efficiency of g-C 3 N 4 is greatly reduced because of the low quantum efficiency and fast recombination rate of the photogenerated electron–hole pairs. , Hence, to reduce the drawbacks of g-C 3 N 4 , several methods such as coupling with metal organic frameworks, covalent organic frameworks and other semiconductors (metal oxides and metal sulfides), doping with elements, and monitoring its structure and morphology have been proposed. ,− For instance, Kuila et al reported the synthesis of cerium ion-adsorbed g-C 3 N 4 for enhancing the photocatalytic degradation of methylene blue dye under sunlight irradiation . de Sousa et al prepared a ternary photocatalyst of ZnO/g-C 3 N 4 /carbon xerogel, which was used in efficient photocatalytic degradation of 4-chlorophenol under visible light irradiation .…”

Fabrication of g-C3N4 nanosheet on stainless steel mesh for effective separation of oil from water

“…Furthermore, a group of multiple bands characteristic for tri-s-triazine ring vibrations, which observed at 1531 cm − 1 , 1396 cm − 1 , and 806 cm − 1 . It is known in the literature that the peak at 1531 cm − 1 is an indication of good crystallinity of the synthesized g-C 3 N 4 [14,15,17].…”

“…Carbon nitride (g-C 3 N 4 ) is an interesting 2D material. A great deal of attention has focused on the use of g-C 3 N 4 for pollutant degradation and chemical synthesis [14,15].…”

Gas Sensors Based on Exfoliated g-C3N4 for CO2 Detection

“…In gas sensing applications, the performance of single-layer gCN remains attractive for two main reasons: (1) its intrinsic vacancies provide gCN with natural pathways for gas diffusion, unlike the artificial defects introduced in the other 2D materials [12,13]; (2) its large specific surface area offers gCN a high gas adsorption capacity [14]. gCN is easily synthesized by the thermal polycondensation process from affordable precursors such as thiourea (CH 4 N 2 S) [15], melamine (C 3 H 6 N 6 ) [16], dicyan-diamide (C 2 H 4 N 4 ) [17] and urea (CH 4 N 2 O) [18], suggesting that it is one of the most promising candidates for industrial scaling up for various applications.…”