2022-Sustainable Industrial Processing Summit
SIPS2022 Volume 18 Intl. Symp on Advanced Materials, Polymers, Composite, Nanomaterials, Nanotechnologies and Manufacturing
| Editors: | F. Kongoli, F. Marquis, N. Chikhradze, T. Prikhna, M. De Campos, S. Lewis, S. Miller, S. Thomas. |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2022 |
| Pages: | 290 pages |
| ISBN: | 978-1-989820-68-1(CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Production Of H2 By Photocatalytic Dissociation Of Water On Nanostructured Oxides.
Yassine Cherif1; Sihem Benaissa2; Amel Boudjemaa3;1ABOU BAKR BELKAID UNIVERSITY OF TLEMCEN, Mansourah, Algeria; 2LABORATORY OF CATALYSIS & SYNTHESIS IN ORGANIC CHEMISTRY, ABOU BAKR BELKAID UNIVERSITY OF TLEMCEN, Mansourah, Algeria; 3CENTRE FOR SCIENTIFIC AND TECHNICAL RESEARCH IN PHYSICAL CHEMICAL ANALYSIS, TIPAZA, Algiers, Algeria;
Type of Paper: Regular
Id Paper: 166
Topic: 43
Abstract:
Concern about the energy crisis and the environmental contamination resulting from the burning of fossil fuels has motivated scientists to look for sustainable and environmentally friendly alternative energy sources. Photocatalytic dissociation of water for the production of hydrogen under solar irradiation is seen as a promising strategy for solving energy and environmental problems, as hydrogen is a clean and renewable energy source. Hydrogen is associated with fuel cells, an alternative technology to the internal combustion engine, and could replace the conventional hydrocarbon/combustion engine option since the reaction involved produces only water and electrical energy. Since the pioneering results obtained by Fujishima and Honda in 1972[1] on the production of hydrogen by photoelectrochemical dissociation of water using a TiO2 photo-anode and a Pt cathode, much work has been done on the photocatalytic dissociation of water using semiconductors. Among potential semiconductors, TiO2 remains the most suitable photocatalyst in terms of chemical inertness, low cost, non-toxicity, availability and long-term stability against photochemical corrosion. However, the efficiency of TiO2 for photocatalytic dissociation of water is limited due to the high probability of recombination of photo-induced electron holes and its limited photoactivity to UV radiation. In order to overcome these drawbacks, numerous studies have been conducted to improve the photoactivity of TiO2[2][3], including the synthesis of nanostructured TiO2 and the doping of TiO2 by noble metals, in particular by Ag. This research is a continuation of this work and aims to develop photocatalysts based on silver-doped mesoporous oxides and to evaluate them in the production of H2 by dissociation of water under UV and visible light irradiation.
Keywords:
Energy; Hydrogen production; Nanomaterials; Renewable energy;References:
[1] Fujishima, A. & Honda, K. Electrochemical photolysis of water at a semiconductor electrode. nature 238, 37 (1972).[2] Méndez, J. O. et al. Production of hydrogen by water photo-splitting over commercial and synthesised Au/TiO2 catalysts. Applied Catalysis B: Environmental 147, 439-452 (2014).
[3] Lakshmanareddy, N., Rao, V. N., Cheralathan, K. K., Subramaniam, E. P. & Shankar, M. V. Pt/TiO2 nanotube photocatalyst–Effect of synthesis methods on valance state of Pt and its influence on hydrogen production and dye degradation. Journal of colloid and interface science 538, 83-98 (2019).