The solvent-driven formation of multi-morphological Ag–CeO₂plasmonic photocatalysts with enhanced visible-light photocatalytic reduction of CO₂

Abstract

The synthesized plasmonic Ag–Ce composite photocatalyst exhibited excellent VLPCR performance caused by SPR effects.

A Highly Efficient Composite Catalyst Constructed From NH2-MIL-125(Ti) and Reduced Graphene Oxide for CO2 Photoreduction

“…If NH 2 -MIL-125 is set as a conventional semiconductor, the X-axis intercept of −0.62 of the linear region can be considered its flat band potential (V fb ) with the unit V vs. Ag/AgCl. According to the equation (Ao et al, 2018; Cai et al, 2018; Wang et al, 2018d), E (NHE, normal hydrogen electrode) = E (Ag/AgCl) + 0.1976 V, the converted potential NHE is obtained. Since V fb is generally 0.2 V more positive than the conduction band (CB) potential (E CB ) for an n-type semiconductor (Chen et al, 2013a; Wang et al, 2018d), the calculated E CB is ~-0.62 V vs. NHE.…”

Improved in Situ Synthesis of Heterostructured 2D/2D BiOCl/g-C3N4 with Enhanced Dye Photodegradation under Visible-Light Illumination

“…The peaks at a low BE value were attributed to the lattice oxygen, and the peaks at a high BE value were assigned to the chemisorbed oxygen, such as O 2 – . 46 The Cl 2p spectra displayed two obvious peaks, which belonged to Cl 2p 3/2 and Cl 2p 1/2 , corresponding to the low and high BE peaks, respectively. 47 The same as Bi 4f spectra, the observed peak shift on the composite was due to the formation of the heterostructure.…”

Construction of Nano-Fe2O3-Decorated Flower-Like MoS2 with Fe–S Bonds for Efficient Photoreduction of CO2 under Visible-Light Irradiation

“…For the Fe 2p spectra, two distinct peaks at about 711 eV and 724 eV are attributed to Fe 2p 3/2 and Fe 2p 1/2 of α-Fe 2 O 3 . Two main peaks are found in O 1s spectra in which the peak at low BE is ascribed to lattice oxygen, and the peak at high BE is attributed to chemisorbed oxygen . Combined with S 2p, Fe 2p, and O 1s spectra, after the loading of α-Fe 2 O 3 , the peaks in both Fe 2p and S 2p spectra shift to a lower BE value, while the peaks in O 1s spectra shift to a higher BE value.…”

“…The valence band positions ( E VB ) of sole MoS 2 and α-Fe 2 O 3 were investigated via VB-XPS profiles, which were obtained as 0.54 and 1.55 eV, respectively. The band gap ( E g ) of sole MoS 2 and α-Fe 2 O 3 were obtained based on eq , exhibiting the values of 1.13 and 2.01 eV, respectively. Hence, the conduction band positions ( E CB ) of MoS 2 and α-Fe 2 O 3 could be calculated according to eq , which were −0.59 and −0.46 eV, respectively.…”