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Updated: Nov 7, 2025

Synthesis and Reaction Chemistry of Nanosize Monosodium Titanate

Synthesis and Reaction Chemistry of Nanosize Monosodium Titanate

Published on: February 23, 2016

Amorphous Domains in Black Titanium Dioxide.

Jianxin Kang¹, Yan Zhang¹, Ziwei Chai^2,3

¹School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Beihang University, Beijing, 100191, China.

Advanced Materials (Deerfield Beach, Fla.)

|April 28, 2021

Summary

This summary is machine-generated.

Researchers developed a new method to create anisotropic oxygen vacancies (O_vs) in titanium dioxide (TiO₂), enhancing its catalytic activity for degrading pollutants like rhodamine B (RhB). This controllable synthesis offers a scalable approach for metal oxide engineering.

Keywords:

amorphous domains black titanium dioxide defect engineering oxygen vacancies

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Area of Science:

Materials Science
Nanotechnology
Catalysis

Background:

Oxygen vacancies (O_vs) are crucial for metal oxide applications.
Controllable synthesis of anisotropic O_vs remains a significant challenge.

Purpose of the Study:

To develop a novel strategy for creating regional dual structures with anisotropic O_vs in TiO₂.
To investigate the impact of these engineered O_vs on catalytic performance.

Main Methods:

Constructing amorphous domains within TiO₂ to induce anisotropic O_vs.
Utilizing first-principle simulations to understand O_v diffusion and domain formation.
Characterizing the synthesized black TiO₂ materials.

Main Results:

The synthesized black TiO₂ with amorphous domains exhibited superior catalytic activity.
Instantaneous degradation of rhodamine B (RhB) was observed.
Simulations confirmed energetic favorability of subsurface O_vs, leading to interior amorphous domain formation.

Conclusions:

The proposed strategy enables controllable, anisotropic O_v engineering in TiO₂.
Stable O_v-induced amorphous domains enhance catalytic performance.
This offers a scalable method for O_v engineering in functional metal oxides.