| Popis: |
This chapter book deals with heterogeneous photocatalysis (HC) applied for emerging contaminant (EC) treatment. HC is an eco-friendly process effective for destroying organic recalcitrant micropollutants. Based on literary survey, the principle of HC is exposed, and a brief list of its applications on ECs is presented. The main factors governing contaminant removal (e.g., initial pH, initial pollutant loading, catalyst concentration, presence of H2O2, and dissolved O2) are summed up. Many shortcomings of HC hamper its full-scale application; hence, innovative improvement strategies are suggested including doping, composites of semiconductors, and metal deposition. To evaluate the detoxification performance of the process, identification of metabolites, degradation pathway, mineralization, and toxicity assessment of ECs are described. The necessity to comply with environmental standards required coupling with other techniques. Thus, the major combined methods with HC are outlined. Some perspectives for future development are highlighted. |
