Simultaneously generating Bi quantum dot and oxygen vacancy on Bi2MoO6 nanosheets for boosting photocatalytic selective alcohol oxidation

Polarization Boosted Solar H2O2 Production over Quantum Dot-Decorated Nanosheets with Rich Oxygen Vacancies

“…The shoulder peaks (165.1–165.4 eV for Bi 4f 5/2 and 159.7/160.2 eV for Bi 4f 7/2 ) occur at higher binding energies for Bi 2 WO 6 and W-0.30V, indicating the appearance of higher electropositive Bi and some Bi atoms bonded with the surface Br atoms. , As shown in Figure d, W 6+ is observed at 35.98 and 38.08 eV in the Bi 2 WO 6 spectrum, assigned to W 4f 7/2 and W 4f 5/2 from [WO 4 ] 2– , respectively . However, the appearance of W 5+ in W-0.30V is observed at binding energies of 35.28 and 37.37 eV, which are assigned to the W 4f 7/2 and W 4f 5/2 orbitals of the W 5+ spectrum. , W 5+ generation is attributed to oxygen vacancies around the W atom formed during the solvothermal process . The binding energy peaks at 517.02 and 524.44 eV are ascribed to V 2p 3/2 and V 2p 1/2, respectively .…”

“…40 However, the appearance of W 5+ in W-0.30V is observed at binding energies of 35.28 and 37.37 eV, which are assigned to the W 4f 7/2 and W 4f 5/2 orbitals of the W 5+ spectrum. 41,42 W 5+ generation is attributed to oxygen vacancies around the W atom formed during the solvothermal process. 39 The binding energy peaks at 517.02 and 524.44 eV are ascribed to V 2p 3/2 and V 2p 1/2, respectively.…”

Highly improved acetone oxidation performance over mesostructured CuxCe1−xO2 hollow nanospheres

“…5(a) that all Cu x Ce 1− x O 2 catalysts demonstrated the characteristic type-IV N 2 adsorption–desorption isotherms integrated with a typical H3 hysteresis loop that was located among the high relative pressure ( P / P 0 ) range of 0.50–1.0, implying the existence of typical mesoporous structures in all Cu x Ce 1− x O 2 catalysts according to the IUPAC classifications. 6,7,31–34 Clearly, it can be seen that all Cu x Ce 1− x O 2 catalysts did not achieve saturated adsorption until the P / P 0 reached approximately 1.0, signifying the formation of partial larger mesoporous structures. 31–35 This conjecture can be confirmed by their pore size distribution curves, as shown in Fig.…”

“…6,7,31–34 Clearly, it can be seen that all Cu x Ce 1− x O 2 catalysts did not achieve saturated adsorption until the P / P 0 reached approximately 1.0, signifying the formation of partial larger mesoporous structures. 31–35 This conjecture can be confirmed by their pore size distribution curves, as shown in Fig. 5(b).…”

Cellulose-templated Bi2SiO5nanorods with enhanced UV/vis light utilization efficiency for high-performance photocatalytic degradation of organic contaminants

“…11 The photocurrent determination with an electrochemical method is a powerful means to estimate the separation and transfer efficiency of photo-generated carriers under light irradiation. 59 During the determination process, the photocatalyst coated on the working electrode was excited by light to generate electrons, and these electrons were transferred through the external circuit to form a current. 60 The magnitude of the photocurrent reflected the separation efficiency of charge carriers in the photocatalyst.…”