ReviewJournal of fluorescence2026
Beyond UV: Overcoming the Optical Bottleneck in Photodesulfurization of Diesel Oil Via Visible and Red-light Harvesting.
Review in Journal of fluorescence, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Strict environmental regulations require the production of ultra-low sulfur diesel (ULSD); however, the conventional hydrodesulfurization (HDS) process remains highly energy-intensive. Photocatalytic oxidative desulfurization (PODS) at room conditions has emerged as a promising green alternative. However, industrial applications of UV-based PODS are severely hampered by the Inner Filter Effect (IFE), in which the aromatic-rich diesel matrix strongly absorbs UV radiation, leading to severe photon starvation within the liquid volume and strictly limiting the reaction to the interface. This critical review highlights a paradigm shift towards visible- and near-infrared (red and NIR) light-driven PODS to overcome this optical deadlock. Although red light has excellent penetrating power on diesel matrices, its low photon thermodynamic energy (2.0 eV) fundamentally hinders direct C-S bond breaking, which actually demands a much higher activation energy. To bridge this energy deficit, advanced nonlinear photon manipulation strategies are comprehensively evaluated. This review shows that simultaneous Two-Photon Absorption (TPA) is the most superior mechanistic pathway, fundamentally outperforming Second Harmonic Generation (SHG) and Triplet-Triplet Annihilation (TTA). While simultaneous TPA utilizing sensitizers with giant absorption cross-sections (> 1000 GM) provides direct access to highly excited states (S
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Registered trials
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