bei Google ScholarTitelangaben
Gopakumar, Aswin ; Ren, Peng ; Chen, Jianhong ; Manzolli Rodrigues, Bruno Vinicius ; Ching, H. Y. Vincent ; Jaworski, Aleksander ; Van Doorslaer, Sabine ; Rokicińska, Anna ; Kuśtrowski, Piotr ; Barcaro, Giovanni ; Monti, Susanna ; Slabon, Adam ; Das, Shoubhik:
Lignin-Supported Heterogeneous Photocatalyst for the Direct Generation of H₂O₂ from Seawater.
In: Journal of the American Chemical Society.
Bd. 144
(2022)
Heft 6
.
- S. 2603-2613.
ISSN 1520-5126
DOI: https://doi.org/10.1021/jacs.1c10786
Abstract
The development of smart and sustainable photocatalysts is in high priority for the synthesis of H2O2 because the global demand for H2O2 is sharply rising. Currently, the global market share for H2O2 is around 4 billion US$ and is expected to grow by about 5.2 billion US$ by 2026. Traditional synthesis of H2O2 via the anthraquinone method is associated with the generation of substantial chemical waste as well as the requirement of a high energy input. In this respect, the oxidative transformation of pure water is a sustainable solution to meet the global demand. In fact, several photocatalysts have been developed to achieve this chemistry. However, 97% of the water on our planet is seawater, and it contains 3.0–5.0% of salts. The presence of salts in water deactivates the existing photocatalysts, and therefore, the existing photocatalysts have rarely shown reactivity toward seawater. Considering this, a sustainable heterogeneous photocatalyst, derived from hydrolysis lignin, has been developed, showing an excellent reactivity toward generating H2O2 directly from seawater under air. In fact, in the presence of this catalyst, we have been able to achieve 4085 μM of H2O2. Expediently, the catalyst has shown longer durability and can be recycled more than five times to generate H2O2 from seawater. Finally, full characterizations of this smart photocatalyst and a detailed mechanism have been proposed on the basis of the experimental evidence and multiscale/level calculations.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Organische Chemie I > Lehrstuhl Organische Chemie I - Univ.-Prof. Dr. Das Shoubhik Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Organische Chemie I |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 18 Jul 2023 09:07 |
| Letzte Änderung: | 08 Nov 2023 11:23 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/86129 |