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Sulfur recycling into value-added materials: a review

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Abstract

About 70 million tons of sulfur are produced yearly as a by-product of petroleum refining, and 10 millions are overproduced and accumulated, thus requiring advanced recycling strategies to reach a circular economy. Here we review the recycling of sublimed sulfur into value-added products with focus on nanotechnology, medicine, agriculture, sensors, electronics, polymers, photocatalysis, construction materials, food packaging, and preservation. Electronics include energy storage devices, light-emitting diodes, and photovoltaic devices.

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Copyright American Chemical Society. b Tandem inverse vulcanization and electropolymerization technique to synthesize sulfur and thiophene-based copolymers using S8 and styrene-functionalized propylenedioxythiophene. Adapted with permission from Dirlam et al. (2015). Copyright American Chemical Society. DIB: 1,3-diisopropenyl benzene, S-r-DIB: sulfur-random-(1,3-di isopropenyl benzene), ProDOT: propylenedioxythiophene, ProDOT-Sty: styrene functionalized propylenedioxythiophene, ProDIBS: poly(ProDOT-Sty-random-DIB-random-sulfur)

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Acknowledgements

This research was supported by the Brain Pool Program funded by the Ministry of Science, ICT and Future Planning through the National Research Foundation of Korea (2019H1D3A1A01070715 and 2022H1D3A2A01056792) and the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (2022R1A2B5B02001422).

Funding

This research was supported by the Brain Pool Program funded by the Ministry of Science, ICT and Future Planning through the National Research Foundation of Korea (2019H1D3A1A01070715 and 2022H1D3A2A01056792) and the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (2022R1A2B5B02001422).

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RP: Conceptualization, Investigation, Writing—original draft, Writing-review, and editing. AK: Writing-original draft and Visualization. PE: Writing-original draft and Visualization. SKT: Writing-original draft. SP: Writing-original draft. TB: Writing-original draft. JWR: Supervision, Project Administration, Funding Acquisition, Writing-review, and editing. JTK: Supervision, Writing-review, and editing.

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Correspondence to Jong-Whan Rhim.

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Priyadarshi, R., Khan, A., Ezati, P. et al. Sulfur recycling into value-added materials: a review. Environ Chem Lett 21, 1673–1699 (2023). https://doi.org/10.1007/s10311-023-01575-5

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