Nanomaterials in Photo (Electro) Catalysis

Abstract

The increasing rate of water and air pollution dramatically impacts natural ecosystems and human health causing depletion of biodiversity, climate changes, spreading of respiratory diseases, and, as a consequence, negatively impacting the world economy [...]

Water pollution generated by tourism: Review of system dynamics models

“…The severity of water pollution caused by the tourism industry is evident in the long-lasting ecological consequences observed in many popular tourist destinations [ 16 ]. Increased nutrient levels, eutrophication, loss of biodiversity, and disruption of aquatic ecosystems are among the documented impacts [ 17 ].…”

Improving Photoelectrochemical Activity of ZnO/TiO2 Core–Shell Nanostructure through Ag Nanoparticle Integration

“…In most of the solar energy harvesting routes, such as solar cells and photocatalysts, semiconductors are the core components of the solar energy conversion devices based on the photo excitation of electrons and holes in semiconductors to absorb solar energy [7,[10][11][12]. In the field of PEC water splitting, the nanomaterials of low-cost semiconductor metal oxides such as ZnO (E g ≈ 3.3 eV), TiO 2 (band gap E g ≈ 3.2 eV), and Fe 2 O 3 (E g ≈ 2.4 eV) are of particular interest for photocatalysis base materials due to their excellent chemical stability, low cost, safe to environment, and potentially high conversion efficiency [6,[10][11][12][13][14][15][16][17][18][19][20]. However, the practically achieved solar energy conversion efficiency of PEC systems based on these semiconductors remains rather low.…”