Controllable synthesis of the defect-enriched MoO_3−x nanosheets as an effective visible-light photocatalyst for the degradation of organic dyes

Abstract

Transition metal oxides (TMOs) are emerging as a promising class of photocatalysts for pollutants treatment. In this report, integrating the anti-solvent crystallization and thermal treatment, we develope a facile and...

Advanced Oxygen‐Vacancy Ce‐Doped MoO3 Ultrathin Nanoflakes Anode Materials Used as Asymmetric Supercapacitors with Ultrahigh Energy Density

“…[ 40 ] As a result, the length and width of the nanobelt appear along the c ‐axis and a ‐axis crystal orientation, respectively. However, the anion vacancy defects are generated in the c ‐axis direction by Ce doping, [ 37,41,42 ] which inhibits the crystal growth along the c ‐axis direction. The inhibition of crystalline growth along the c ‐axis direction is also proved by below X‐ray diffraction (XRD) data (Figure 3e), for example, compared to OV‐MoO 3 , the intensities of the {0 l 0} such as (020), (040), (060) planes and (200) plane in all Ce‐doped samples decrease remarkably, while the intensity of the (002) plane increases significantly, indicating that the Ce doping favors the growth along the a ‐axis and b ‐axis direction and results in the generation of nanoflakes.…”

Architecting Hybrid Donor–Acceptor Dendritic Nanosheets Based on Polyoxometalate and Porphyrin for High‐Yield Solar Water Purification

“…The above results suggest that the CTAB also can serve as a structure inducer to promote the formation of Mo 5+ . [15] Inductively coupled plasma optical emission spectroscopy (ICP-OES) results point out that the mass ratio of Mo to Cu atoms is nearly 37.2 to 1, indicating that the molar ratio of PMA to TPyP-Cu is 2:1 (Table S1, Supporting Information). Besides, the matrix-assisted laser desorption/ionization time-of-flight mass spectrometry presents an obvious signal at m/z 2168, which can be assigned to [(H 4 PMo V 4 Mo VI 8 O 40 ) 2 (C 40 H 28 N 8 Cu)] 2fragment (Figure S10, Supporting Information).…”

“…The above results suggest that the CTAB also can serve as a structure inducer to promote the formation of Mo 5+ . [ 15 ]…”

An investigation on a WO3/MoO3−x heterojunction photocatalyst for excellent photocatalytic performance and enhanced molecular oxygen activation ability

“…Recent studies have shown that defect engineering can improve the photocatalytic performance of MoO 3 . 37 MoO 3 with oxygen vacancies exhibited localized surface plasmon resonance (LSPR) effects, and the LSPR effect can broaden the light absorption range of semiconductors, thus improving the light absorption capacity. [38][39][40][41] In addition, oxygen vacancies can act as an electron trap to impede the recombination of photogenerated carriers.…”