Achieving Near‐Complete Dechlorination of Poly(vinyl chloride) via Electrochemical Reduction

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Main Authors: Rahul Kant Jha, Henry E. Thurber, Bertrand J. Neyhouse, Quinn L. VanZile, Anne J. McNeil
Format: Artículo Open Access
Published: Wiley 2026
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author Rahul Kant Jha
Henry E. Thurber
Bertrand J. Neyhouse
Quinn L. VanZile
Anne J. McNeil
author_facet Rahul Kant Jha
Henry E. Thurber
Bertrand J. Neyhouse
Quinn L. VanZile
Anne J. McNeil
Rahul Kant Jha
Henry E. Thurber
Bertrand J. Neyhouse
Quinn L. VanZile
Anne J. McNeil
collection Wiley Open Access
contents Achieving Near‐Complete Dechlorination of Poly(vinyl chloride) via Electrochemical Reduction Rahul Kant Jha Henry E. Thurber Bertrand J. Neyhouse Quinn L. VanZile Anne J. McNeil ChemSusChem Despite its ubiquity, scalable recycling of poly(vinyl chloride) (PVC) remains elusive. One challenge is that the waste streams can be contaminated with plasticizers. Herein, we present a strategy that repurposes these plasticizers as redox mediators in a controlled‐voltage electrolysis to dechlorinate PVC. Five common plasticizers were evaluated as redox mediators. In addition, using voltage limits via a galvanostatic cycling with potential limitation protocol attenuated deleterious mediator decomposition. Among the plasticizers screened, trioctyl trimellitate enabled up to 97% dechlorination of PVC across a range of PVC samples, including commercial‐grade rigid pipe and flexible tubing, and scales (up to 0.5 g), illustrating broad applicability. This method achieves near‐quantitative PVC dechlorination in a simple, one‐pot transformation while simultaneously utilizing the liberated chloride, offering a promising solution for transforming waste PVC into recycled products. 10.1002/cssc.70715 http://creativecommons.org/licenses/by/4.0/
doi_str_mv 10.1002/cssc.70715
format Artículo Open Access
id wiley_oa_10_1002_cssc_70715
institution Wiley Open Access
license_str_mv http://creativecommons.org/licenses/by/4.0/
publishDate 2026
publisher Wiley
record_format wiley_oa
spellingShingle Achieving Near‐Complete Dechlorination of Poly(vinyl chloride) via Electrochemical Reduction
Rahul Kant Jha
Henry E. Thurber
Bertrand J. Neyhouse
Quinn L. VanZile
Anne J. McNeil
ChemSusChem
Achieving Near‐Complete Dechlorination of Poly(vinyl chloride) via Electrochemical Reduction Rahul Kant Jha Henry E. Thurber Bertrand J. Neyhouse Quinn L. VanZile Anne J. McNeil ChemSusChem Despite its ubiquity, scalable recycling of poly(vinyl chloride) (PVC) remains elusive. One challenge is that the waste streams can be contaminated with plasticizers. Herein, we present a strategy that repurposes these plasticizers as redox mediators in a controlled‐voltage electrolysis to dechlorinate PVC. Five common plasticizers were evaluated as redox mediators. In addition, using voltage limits via a galvanostatic cycling with potential limitation protocol attenuated deleterious mediator decomposition. Among the plasticizers screened, trioctyl trimellitate enabled up to 97% dechlorination of PVC across a range of PVC samples, including commercial‐grade rigid pipe and flexible tubing, and scales (up to 0.5 g), illustrating broad applicability. This method achieves near‐quantitative PVC dechlorination in a simple, one‐pot transformation while simultaneously utilizing the liberated chloride, offering a promising solution for transforming waste PVC into recycled products. 10.1002/cssc.70715 http://creativecommons.org/licenses/by/4.0/
title Achieving Near‐Complete Dechlorination of Poly(vinyl chloride) via Electrochemical Reduction
topic ChemSusChem
url https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.70715