Recent progress of photoelectrocatalysis systems for wastewater treatment

Preparation and Photocatalytic Performance of Sodium Alginate/Polyacrylamide/Polypyrrole-TiO2 Nanocomposite Hydrogels

“…Among various wastewater treatment technologies [5,6], the implementation of multiphase photocatalytic reactions utilizing semiconductor oxides as photocatalysts exhibits distinctive characteristics, including operation at ambient temperature, deep mineralization, and utilization of sunlight as an activating light source to directly drive the redox reaction. These features make it an ideal technology for wastewater treatment [7,8]. Titanium dioxide (TiO 2 ) is one of the most extensively studied semiconductor photocatalysts due to its stability, high activity, low cost, and non-toxicity, showing great potential in remediating environmental pollution [9].…”

Preparation and performance of aerogel-based BiOI/TiO2 heterojunction photoelectrocatalytic electrodes

“…In recent years, environmental problems that can be found everywhere, such as industrial wastewater, domestic sewage, and harmful pollutants, have posed a major safety risk to human health and ecosystems. [1][2][3][4] Therefore, the degradation of organic pollutants in water is important and urgent. Advanced oxidation is an efficient water treatment technology.…”

Recent advances in treatment technology of wastewater containing H‐acid: a mini‐review

“…During the acid evolution process, a single sodium salt of H‐acid is precipitated by adding sulfuric acid. However, wastewater containing H‐acid produced by filtrating the mother liquor has a high chroma, chemical oxygen demand (COD) concentration, biological toxicity and other undesirable characteristics 7‐9 …”

“…However, wastewater containing H-acid produced by filtrating the mother liquor has a high chroma, chemical oxygen demand (COD) concentration, biological toxicity and other undesirable characteristics. [7][8][9] The diphenyl ring structure of H-acid endows it with remarkable chemical stability, which renders efficient recycling and harmless disposal using conventional oxidation or biological treatments a formidable challenge. [10][11][12] Wastewater containing H-acid is characterized by high concentrations of COD, typically ranging from 20 to 50 g L −1 , with a pH value of approximately 2.…”