Structure · dataset · 2026
Sustainable Conversion of Elemental Sulfur to Fluorescent Luminophore
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The strong reliance on oil and gas necessitates continuous refinery operations, resulting in the unregulated and sustained production of byproducts such as elemental sulfur (S<sub>8</sub>), thereby posing significant management challenges.
Description
Converting this byproduct into valuable materials through sustainable, environmentally friendly methods offers a promising solution by reducing costs, health risks, and processing challenges.
As the field of light-emitting materials continues to expand globally, the demand for sustainable, stable, and efficient optoelectronic materials is steadily increasing. Herein, we report the mechanochemical synthesis of luminescent <i>N</i>-heterocyclic chalcogenones, hexaphenylpyridineimidazolthione (<b>HPPIT</b>) and hexaphenylpyridineimidazolselone (<b>HPPIS</b>). The material is readily synthesized by mechanogrinding and ball milling using various solvent-free methods.
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Along with the synthesis of material, the studies include crystallographic and thermal analyses, stating thermal stability up to 340 °C. Also, it stabilized the excited state (<i>f</i> = 0.0405) and enhanced the photoluminescence properties (Φ = 14%, τ<sub>avg</sub> = 8.9 ns) in crystalline <b>HPPIT</b>. To assess the function, <b>HPPIT</b> and <b>HPPIS</b> were converted into films at different concentrations, and the maximum lifetime (τ<sub>avg</sub>) was 16.96 ns with a quantum yield (Φ) of 6.1%.
This approach highlights the valorization of industrial elemental sulfur into a luminescent functional material via solvent-free mechanochemical synthesis, which represents a paradigm for sustainable optoelectronics aligned with the United Nations Sustainable Development Goals.
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Where it is published
- DOI doi.org/10.1021/acsaom.6c00476.s003 ↗
DOI / persistent id · from zivahub uct ac za
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from zivahub uct ac za
Topics
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ZivaHub | oai:figshare.com:article/34021118 | 13 d ago | JSON v1 |
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| title | source · zivahub uct ac za | connector:zivahub_uct_ac_za@1.0.0 | /metadata/dc/title |