Bi2WO6

bismuth tungstate · Aurivillius phase bismuth tungstate

Bi2WO6 is a stable, semiconducting bismuth tungstate oxide widely utilized for its photocatalytic and sensing capabilities.

BiOW
Crystal structure of Bi2WO6
Ground-state structure · Materials Project
Overview

About bismuth tungstate

Bi2WO6 is a thermodynamically stable inorganic compound that exists as a prominent member of the Aurivillius family of layered oxides. Its semiconducting electronic character makes it a highly attractive candidate for light-harvesting applications and chemical sensing. The material is characterized by a robust structural framework that supports efficient charge carrier dynamics, which is essential for its performance in various catalytic processes. Its stability on the convex hull ensures that it remains a reliable subject for both fundamental research and practical material design.

At a glance

Key Properties

Cross-validated computational properties for bismuth tungstate, aggregated across 4 databases.

Band Gap

0.56–2.40 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

11
4 databases, 5 space groups
Uses

Applications

Where bismuth tungstate is used.

Photocatalytic water splittingEnvironmental pollutant degradationGas sensingPhotoelectrochemical devices
Reference

Frequently Asked Questions

Common questions about bismuth tungstate, answered from cross-validated data.

What is Bi2WO6?

Bi2WO6 is a stable, semiconducting bismuth tungstate oxide widely utilized for its photocatalytic and sensing capabilities.

More questions
What is Bi2WO6 used for?
bismuth tungstate (Bi2WO6) is used in photocatalytic water splitting, environmental pollutant degradation, gas sensing, and photoelectrochemical devices.
What is the band gap of Bi2WO6?
bismuth tungstate (Bi2WO6) has a DFT-computed band gap of 0.56–2.40 eV across 11 reported structures.
Is Bi2WO6 a metal, semiconductor, or insulator?
With a band gap up to 2.40 eV it is a semiconductor.
Is Bi2WO6 thermodynamically stable?
Yes — bismuth tungstate (Bi2WO6) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Bi2WO6 are known?
11 structures of Bi2WO6 are reported across 4 databases, spanning 5 distinct space groups.
What elements does Bi2WO6 contain?
bismuth tungstate (Bi2WO6) contains Bi, O, and W (3 elements).
Where does the data for Bi2WO6 come from?
Bi2WO6 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a foundational member of the layered bismuth-based oxide class, Bi2WO6 serves as a primary benchmark for studying photocatalytic activity and structural stability in complex ternary oxides. It is widely recognized for its well-defined crystal structure, which provides a versatile platform for engineering surface properties compared to more complex or less stable members of the broader bismuth-tungsten-oxygen system.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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