Investigation of the photocatalytic activity of supported ZnO–TiO₂on clinoptilolite nano-particles towards photodegradation of wastewater-contained phenol

Biosorption of cadmium (II) onto loquat leaves (Eriobotrya japonica) and their ash from aqueous solution, equilibrium, kinetics, and thermodynamic studies

“…Hence, it has rather great potential for the field application. Another point to be noted is that the photodegradation performance of immobilized titania might be enhanced by giving certain treatments, like aeration, pH adjustment, and controlling catalyst loading [1,43]. For example, an aeration treatment will provide a better mixing condition for the photocatalytic system, hence more contact between immobilized catalyst and the pollutants will likely occur [43].…”

“…The main advantage in using AOP is that it can transform the toxic organic pollutants into non-toxic or less toxic products like CO 2 [3]. Nowadays, photocatalyst titania has been widely studied and developed for the elimination of organic pollutants, e.g., dyes [5,8], aniline [9], toluene [10] and phenol [1,[11][12][13]. However, the utilization of nanosized photocatalyst encounters a major problem, i.e., the difficulty of separating the catalyst after use [13,14].…”

“…This action is taken because most of the industrial wastes usually contain hazardous components, such as phenol and its derivatives which are very toxic, carcinogenic, and resistant to degradation due to their high solubility and stability in water [1,2]. Various methods for removal of phenol components have been widely studied and developed, including adsorption, biodegradation, extraction, and oxidation, as in ozonation and photocatalysis [3].…”

A robust UV–visible light‐driven SBA‐15‐PS/phthalhydrazide nanohybrid material with enhanced photocatalytic activity in the photodegradation of methyl orange

“…So the overall number of the photons that can reach the catalyst particles and produce electron–hole pairs would be reduced . Additionally, aggregation of solid particles, when a large amount of catalyst was utilized, may reduce the effective surface area of the catalyst . Then again, at higher concentration, some parts of the photocatalyst nanoparticles would be in the dark and induce a decrease in the light penetration.…”

A recyclable PEG-crowned potassium tribromide [{K+PEG}·Br3−] for the synthesis of tetrabromobisphenol A

“…These days, the governments of several countries have put great attention on the industrial waste, thus issuing some strict regulations about waste specification prior to discharge to the environment. This action is taken because most of the industrial wastes usually contain hazardous components, such as phenol and its derivatives which are very toxic, carcinogenic, and resistant to degradation due to their high solubility and stability in water [1,2]. Various methods for removal of phenol components have been widely studied and developed, including adsorption, biodegradation, extraction, and oxidation, as in ozonation and photocatalysis [3].…”