Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 259, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2019.118097
Keywords
Titanium dioxide; Nanodiamond; Nanocomposites; Photocatalysis; Chemical warfare agents
Funding
- Czech Academy of Sciences [MSM200321601]
- Operational Programme Research, Development and Education - European Structural and Investment Funds
- Czech Ministry of Education, Youth and Sports [SOLID21 CZ.02.1. 01/0.0/0.0/16_019/0000760, CAP -CZ.02.1.01/0.0/0.0/15_003/0000464]
- Czech Science Foundation (GACR) [18-11711Y]
- Swedish research council [2016-05904]
- Swedish Research Council [2016-05904] Funding Source: Swedish Research Council
Ask authors/readers for more resources
We report on the synthesis and characterization of TiO2/Nanodiamond (ND) nanocomposites for rapid decontamination of chemical warfare agents (CWA) and toxic industrial compounds prepared by a simple water-based, low-temperature method using urea as a homogeneous precipitating agent. The excellent water-compatibility of NDs promoted their good dispersion within the TiO2 matrix resulting in intergrown TiO2/ND nanostructures. NDs with an abundance of oxygen-containing surface moieties increased the porosity of the composites resulting in their three times more efficient spontaneous degradation of the CWA soman in solution compared to pure TiO2. In situ DRIFT spectroscopy revealed the enhanced reactive adsorption and solar light photodecomposition of dimethyl methyl phosphonate vapor on TiO2/ND. The charge transfer across TiO2/ND interfaces that hinder recombination of photo-excited electron-hole pairs was inferred from surface potential measurements. The results indicate that well-dispersed NDs forming heterojunctions together with their high porosity contribute to the reactive properties of the nanocomposites.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available