Carbon nanodots/WO 3 nanorods Z-scheme composites: Remarkably enhanced photocatalytic performance under broad spectrum

Boosting the performance of visible light‐driven WO 3 /g‐C 3 N 4 anchored with BiVO 4 nanoparticles for photocatalytic hydrogen evolution

“…The value of n is 1, for the direction transition of catalyst. The E g of prepared material can be calculated by using Tauc plot with (α h ν) along vertical axis versus photon energy ( h ν) along horizontal axis. The tangent intercept along X axis is around bandgap energy and the estimated E g values are approximately 2.37, 2.81, 2.58, 2.6, 2.57, 2.51, 2.43, and 2.36 eV for pure BiVO 4 , WO 3 and g‐C 3 N 4 , S‐4, S‐5, S‐6, S‐7, and S‐8 photocatalysts, correspondingly.…”

“…With the ever‐growing industrialization and global population, the world demand for green energy rapidly increases; transforming the way we produce, transmit, stock, and use clean energy will be one of the significant globe challenges in the 21st century. The use of customary energy resources including hydroelectric, fossil, nuclear, and mineral causes universal warming due to the release of harmful pollutants, ie, methane, CO 2 , and CO, which may cause of severe tragedies in different places throughout worldwide . Additionally, there is a continuous reduction of these energy sources.…”

Polymeric Carbon Nitride/Reduced Graphene Oxide/Fe2O3: All‐Solid‐State Z‐Scheme System for Photocatalytic Overall Water Splitting

“…The Raman spectrum ( Figure S7) of the Fe 2 O 3 /RGO sample contained the two characteristic peaks of RGO nanosheets. [19] TheD-band was attributed to the presence of disordered graphite, whereas the G-band arises from the pristine graphite structure.T he peak intensity ratios of the D-and G-bands was 1.37 for the Fe 2 O 3 /RGO sample,i ndicating that the Fe 2 O 3 /RGO sample contained adisordered carbon structure, which is probably caused by the generation of Fe-O-C bonds between the Fe 2 O 3 nanoparticles and RGO nanosheets. [19] TheD-band was attributed to the presence of disordered graphite, whereas the G-band arises from the pristine graphite structure.T he peak intensity ratios of the D-and G-bands was 1.37 for the Fe 2 O 3 /RGO sample,i ndicating that the Fe 2 O 3 /RGO sample contained adisordered carbon structure, which is probably caused by the generation of Fe-O-C bonds between the Fe 2 O 3 nanoparticles and RGO nanosheets.…”

Role of fullerene to improve the WO3 performance for photocatalytic applications and hydrogen evolution

“…Consequently, it is need of modern era of life to develop and fabricate particular semiconductor‐based photocatalyst that may be responsive to ultraviolet‐visible‐near‐infrared (UV‐VIS‐NIR) region and also play significant role to overcome many other problems including above mentioned. Among the numerous transition metal oxides, nanostructured tungsten trioxide (WO 3 ) is an n‐type, indirect band gap semiconductor metal oxide with versatile properties and practical useful for gas sensing applications, water splitting, air cleaning, environment cleaning, heavy metal remediation, and photocatalytic dye degradation . Unfortunately, apart from all unique and versatile properties of WO 3 , it has been observed that the said material shows a lower catalytic efficiency due to fast recombination rate of charge carriers owing to low band gap energy .…”

“…Among the numerous transition metal oxides, nanostructured tungsten trioxide (WO 3 ) is an n-type, indirect band gap semiconductor metal oxide with versatile properties and practical useful for gas sensing applications, water splitting, air cleaning, environment cleaning, heavy metal remediation, and photocatalytic dye degradation. 29 Unfortunately, apart from all unique and versatile properties of WO 3 , it has been observed that the said material shows a lower catalytic efficiency due to fast recombination rate of charge carriers owing to low band gap energy. 30 Therefore, modifications in WO 3 properties is essential to lessen the issues aroused in pristine catalytic material.…”