水系中のジクロフェナク除去を目的とした接触水素脱塩素化技術の最新動向
This review consolidates current knowledge on the catalytic hydrodechlorination (HDC) of diclofenac (DFC), a widely detected pharmaceutical contaminant in water systems. The survey covers the principal catalytic materials employed for DFC removal from aqueous matrices, evaluating their performance characteristics. Three strategic approaches are examined: conventional HDC relying on molecular hydrogen as the electron donor, biocatalytic methods, and electrocatalytic alternatives. Optimized reaction conditions for each system are outlined alongside kinetic models and mechanistic frameworks that clarify the HDC process. The review concludes by identifying future directions for catalyst development and potential contributions to wastewater remediation and heterogeneous catalysis research.
HDC proceeds via reductive cleavage of C–Cl bonds in diclofenac at the catalyst surface, using molecular hydrogen as the electron donor; biocatalytic and electrocatalytic routes achieve analogous dechlorination through alternative electron-transfer mechanisms.
The delivery route is not clearly identifiable from this paper. For hydrogen intake, inhalation is the most efficient route; inhalation, however, carries explosion risk (empirical LFL of 10%; high-concentration devices are not recommended).
See also:
https://h2-papers.org/en/papers/40871486