Dear Researchers,
I am currently working on a review article focusing on Advanced Oxidation Processes (AOPs), specifically highlighting the role of carbonate (CO₃²⁻) and bicarbonate (HCO₃⁻) salts in the generation of reactive oxygen species (ROS). These inorganic species are increasingly recognized for their influence on radical pathways and transformation efficiencies during water and wastewater treatment. I am particularly interested in their mechanistic contributions, the formation of carbonate radicals, and their synergistic or inhibitory effects under various AOP conditions (e.g., UV, ozonation, Fenton-based systems).
I would be grateful if anyone could recommend comprehensive books, review papers, or recent research articles that explore the involvement of carbonates and bicarbonates in environmental remediation via AOPs.
Your guidance and suggestions will be greatly appreciated and acknowledged in my work.
Core Review & Mechanistic Papers
[ Full text – MDPI
- Detailed review of HCO₃⁻/CO₃²⁻ in various AOP systems (H₂O₂, PMS, PDS, ozonation, Fenton).
- Covers activation pathways to percarbonate (HCO₄⁻) and carbonate radical (CO₃•⁻), scavenging effects, pH interactions.
- Rich in equations and scavenger test results (identifies OH•, SO₄•⁻, ¹O₂, O₂•⁻ roles).
Recent Specialized Research
Key Mechanistic Themes for Your Review
- Activation vs. Inhibition:Activation: PMS/PDS + HCO₃⁻ → CO₃•⁻, percarbonate intermediates, ¹O₂, O₂•⁻. Inhibition: OH• and SO₄•⁻ scavenging, especially in ozonation and UV/H₂O₂ systems at high alkalinity.
- pH-Driven Pathways:Carbonates shift pH → increase oxidant stability but can also alter redox potential and radical selectivity.
- Selective Oxidation:CO₃•⁻ less reactive but more selective than OH•; useful for targeting electron‑rich organics while minimizing background matrix degradation.
- Non‑Classical ROS Generation:Hydrochar + HCO₃⁻ systems exhibit radical generation without oxygen gas, relevant for subsurface or anaerobic treatment.
Suggested Books for Broader AOP Context
- Advanced Oxidation Processes for Water and Wastewater Treatment by Mihaela I. Stefan (IWA Publishing, 2018).
- Advanced Oxidation Processes: Current Status and Prospects edited by M. Farooq, M. Al-Shoaibi (Elsevier, 2022).While not carbonate‑exclusive, both contain sections on inorganic radical chemistry.
- Badges
- Science topic