نتایج جستجو برای: bismuth vanadate bivo4

تعداد نتایج: 8930  

2011
Sean P. Berglund David W. Flaherty Nathan T. Hahn Allen J. Bard C. Buddie Mullins

Nanostructured BiVO4 films were synthesized by coevaporation of bismuth and vanadium in an oxygen ambient, a process referred to as reactive ballistic deposition (RBD). The films were tested in various electrolyte solutions to assess their activity for photoelectrochemical water oxidation. Deposition parameters, including the V/Bi atomic flux ratio and the incident angle of deposition, were adj...

Journal: :Materials advances 2022

Bismuth vanadate (BiVO 4 )–paint composites coated on the aluminium sheet surface were fabricated with different BiVO amounts (0, 20, and 40 wt%) in paint.

2014
Marta D Rossell Andreas Borgschulte Rolf Erni

Bismuth vanadate (BiVO4, short BVO) is a promising photoelectrochemically active candidate for water splitting used for hydrogen generation. Compared to TiO2, i.e. the most widely used and investigated photocatalyst, BVO uses visible instead of ultraviolet light for its photoelectrochmical activity. Amongst the three polymorphs of BVO, the monoclinic clinobisvanite BVO (m-BVO) phase exhibits th...

Journal: :Synthesis and sintering 2023

Photocatalysis is known as a new and cost-effective method to solve the problems of energy shortage environmental pollution. Although application this seems practical, finding an efficient stable photocatalyst with suitable bandgap visible-light sensitivity remains challenging. In context, vanadate compounds photocatalysts have been synthesized used emerging composites, their efficiency has imp...

2017
Deqiang Zhao Wenwen Wang Wenjuan Zong Shimin Xiong Qian Zhang Fangying Ji Xuan Xu

The band gaps of bismuth vanadate (BiVO₄) and bismuth sulfide (Bi₂S₃) are about 2.40 eV and 1.30 eV, respectively. Although both BiVO₄ and Bi₂S₃ are capable of strong visible light absorption, electron-hole recombination occurs easily. To solve this problem, we designed a one-step hydrothermal method for synthesizing a Bismuth sulfide (Bi₂S₃)/Bismuth vanadate (BiVO₄) heterojunction using polyvi...

Journal: :Physical Chemistry Chemical Physics 2020

Journal: :Optik 2023

Bismuth vanadate is one of most studied materials in the field photocatalysis due to its high photocatalytic activity. The modulation optical properties can be engineered by fabricating photonic crystals which bismuth included. In present study, monoclinic clinobisvanite structure has been included a one-dimensional crystal. layers are alternated with on silicon dioxide doped titanium nanoparti...

Journal: :Photochem 2022

Bismuth vanadate (BiVO4 or BVO) is one of the most studied photocatalysts for water oxidation because its excellent visible light absorption and appropriate band energy positions. However, BVO presents a low charge mobility high electron–hole recombination rate. To address these fundamental limitations, this study proposes coating previously synthesized phase-pure monoclinic scheelite with diff...

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