Cuprous ion (Cu+) doping induced surface/interface engineering for enhancing the CO2 photoreduction capability of W18O49 nanowires

Bioinspired spike-like double yolk–shell structured TiO2@ZnIn2S4 for efficient photocatalytic CO2 reduction

“…Among all the strategies to deal with the above issues, solar energy-driven conversion of CO 2 into energy-rich fuels has been a promising methodology to solve the global environmental problems and energy crisis simultaneously. 1–16 Typically, PCR reactions can produce various valuable chemical fuels (such as CO, CH 4 , methanol, syngas or other chemicals). Specifically, syngas as a kind of product of PCR is a critical feedstock for the production of valuable chemicals in industry by well-established industrial processes ( e.g.…”

Cu Nanoparticles Modified Step-Scheme Cu2O/WO3 Heterojunction Nanoflakes for Visible-Light-Driven Conversion of CO2 to CH4

“…Developing artificial photosynthesis routes by reducing anthropogenic CO 2 emissions using solar energy instead of carbon-based fuels such as methane, methanol or carbon monoxide is still an intensive research topic in the environmental and energy field [2][3][4]. Since a TiO 2 photocatalyst was used to reduce CO 2 into methanol and formaldehyde by Inoue et al in 1972 [5], most semiconductor photocatalysts, such as g-C 3 N 4 , CeO 2 , W 18 O 49 and Bi 2 WO 6 have received immense attention for CO 2 reduction under visible light irradiation, which occupies 44% of solar light [6][7][8][9][10][11]. Among the common photocatalysts, WO 3 material has gradually gained special scientific interest due to its relatively narrow bandgap (E g ~2.8 eV) and unique crystal structure containing a network of corner-shared octahedral units of [ WO 6 ], which could theoretically utilize 12% of solar light and enhance charge migration in the catalyst [12].…”

“…Among the common photocatalysts, WO 3 material has gradually gained special scientific interest due to its relatively narrow bandgap (E g ~2.8 eV) and unique crystal structure containing a network of corner-shared octahedral units of [ WO 6 ], which could theoretically utilize 12% of solar light and enhance charge migration in the catalyst [12]. Although WO 3 crystals exhibit various phases, few studies have focused on hexagonal phase WO 3 (h-WO 3 ) for photocatalytic CO 2 reduction [8,13,14]. h-WO 3 not only exhibits excellent visible light responsive properties according to its good photochromic ability [15], but also strong CO 2 adsorption at low-pressure due to the presence of ultramicro-sized tunnels [16].…”

S‐scheme W18O49/Mn0.2Cd0.8S Heterojunction for Improved Photocatalytic Hydrogen Evolution

“…Based on this, the scientists found that the W 18 O 49 semiconductor could be doped with foreign elements and recombined with other energy-matched semiconductor metal materials to change its electronic structure, thus increasing its photocatalytic activity. [35,36] P. Bhavan et al [33] doped Mo into W 18 O 49 and then combined it with CdS to form MoW 18 O 49 /CdS. Compared with the original CdS nanorods, photocatalytic hydrogen efficiency was greatly improved under visible light.…”