Brassinosteroid improves light stress tolerance in tomato () by regulating redox status, photosynthesis and photosystem II.

Plants often experience variations in light intensity, referred to as light stress, that negatively impact important aspects of plant growth and development, including photosynthesis and antioxidant system. The photosynthetic machinery is susceptible to these disturbances, especially photosystem II and its reaction centers. We aimed to evaluate the role of brassinosteriod in plants under both high and low light conditions by examining various physiological parameters such as photosynthetic efficiency, pigment levels, and enzymatic activity of various antioxidant enzymes in one month old tomato plants.

Aqueous and solid phase photocatalytic degradation of perfluorooctane sulfonate by carbon- and Fe-modified bismuth oxychloride.

In this study, we prepared and tested a carbon-modified, Fe-loaded bismuth oxychloride (Fe-BiOCl/CS) photocatalyst for photocatalytic degradation of perfluorooctane sulfonate (PFOS). Structural analyses revealed a (110) facet-dominated sheet-type BiOCl crystal structure with uniformly distributed Fe and confirmed carbon modification of the photocatalyst. The presence of d-glucose facilitated the growth control of BiOCl particles and enhanced the adsorption of PFOS via added hydrophobic interaction.

Morphology Dependent Photocatalytic Activity of CuO/CuO-TiO₂ Nanocatalyst for Degradation of Methyl Orange Under Sunlight.

CuO nanoparticles have been extensively used as a photocatalyst because of their superior activity, selectivity and stability properties. The catalytic efficiency of these oxide nanoparticles can be improved by varying the size and shape of nanoparticles. Here, we report the synthesis of different shaped CuO nanoparticles and their impregnation on TiO₂.

Photoelectrochemical sewage treatment by a multifunctional g-CN/Ag/AgCl/BiVO photoanode for the simultaneous degradation of emerging pollutants and hydrogen production, and the disinfection of E. coli.

This study describes the photoelectrochemical (PEC) treatment of authentic sewage from Hong Kong for H production and degradation of emerging pollutants (EP's) simultaneously, and disinfection of E. coli. The g-CN/Ag/AgCl/BiVO (CAB-1) coated thin film acted as the photoanode in a three-electrode configuration PEC cell and real sewage as the electrolyte.

Photocatalytic Degradation of Methylene Blue by Plasmonic Metal-TiO₂ Nanocatalysts Under Visible Light Irradiation.

This study demonstrates photocatalytic activity of 1 wt% plasmonic metal (Au, Ag and Cu)–TiO₂ nanocatalysts prepared via photodeposition method for the photo oxidative decomposition of methylene blue (MB 0.01 mM) under visible light (50 mWcm−2) irradiation. Plasmonic metal loaded-TiO₂ photocatalysts absorb with an absorption maximum at localized surface plasmon resonance wavelengths (500–785 nm).