Hydrazone-Linked Covalent Organic Framework Catalyst via Efficient Pd Recovery from Wastewater

Mahira Bashri; Sushil Kumar; Pallab Bhandari; Sasi Stephen; Matthew J. O’Connor; Safa Gaber; Tina Škorjanc; Matjaž Finšgar; Gisha Elizabeth Luckachan; Blaž Belec; Emad Alhseinat; Partha Sarathi Mukherjee; Dinesh Shetty

doi:10.1021/acsami.4c07706

Hydrazone-Linked Covalent Organic Framework Catalyst via Efficient Pd Recovery from Wastewater

Mahira Bashri
, Sushil Kumar
, Pallab Bhandari
, Sasi Stephen
, Matthew J. O’Connor
, Safa Gaber
, Tina Škorjanc
, Matjaž Finšgar
, Gisha Elizabeth Luckachan
, Blaž Belec
, Emad Alhseinat
, Partha Sarathi Mukherjee
, Dinesh Shetty

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Global consumption and discharge of palladium (Pd) have raised environmental concerns but also present an opportunity for the sustainable recovery and reuse of this precious metal. Adsorption has proven to be an efficient method for the selective recovery of Pd from industrial wastewater. This study investigated a hydrazone-linked covalent organic framework (Tfpa-Od COF) as a potential material for the high-affinity adsorption of Pd²⁺ ions from wastewater, achieving a K_d value of 3.62 × 10⁶ mL g^-1. The electron-rich backbone of the COF contributes to its excellent selective removal efficiency (up to 100%) and adsorption capacity of 372.59 mg g^-1. Furthermore, the Pd-adsorbed COF was evaluated as a sustainable catalyst for the Suzuki-Miyaura coupling reaction, demonstrating good catalytic conversion and recyclability. This work attempts to showcase a protocol for reusing waste palladium generated in water to fabricate heterogeneous catalysts and, thereby, promote the circular economy concept.

Original language	British English
Pages (from-to)	17804-17812
Number of pages	9
Journal	ACS Applied Materials and Interfaces
Volume	17
Issue number	12
DOIs	https://doi.org/10.1021/acsami.4c07706
State	Published - 26 Mar 2025

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 9 Industry, Innovation, and Infrastructure

Keywords

catalysis
covalent organic frameworks
palladium adsorption
sustainability
water purification

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10.1021/acsami.4c07706

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Bashri, M., Kumar, S., Bhandari, P., Stephen, S., O’Connor, M. J., Gaber, S., Škorjanc, T., Finšgar, M., Luckachan, G. E., Belec, B., Alhseinat, E., Mukherjee, P. S., & Shetty, D. (2025). Hydrazone-Linked Covalent Organic Framework Catalyst via Efficient Pd Recovery from Wastewater. ACS Applied Materials and Interfaces, 17(12), 17804-17812. https://doi.org/10.1021/acsami.4c07706

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title = "Hydrazone-Linked Covalent Organic Framework Catalyst via Efficient Pd Recovery from Wastewater",

abstract = "Global consumption and discharge of palladium (Pd) have raised environmental concerns but also present an opportunity for the sustainable recovery and reuse of this precious metal. Adsorption has proven to be an efficient method for the selective recovery of Pd from industrial wastewater. This study investigated a hydrazone-linked covalent organic framework (Tfpa-Od COF) as a potential material for the high-affinity adsorption of Pd2+ ions from wastewater, achieving a Kd value of 3.62 × 106 mL g-1. The electron-rich backbone of the COF contributes to its excellent selective removal efficiency (up to 100\%) and adsorption capacity of 372.59 mg g-1. Furthermore, the Pd-adsorbed COF was evaluated as a sustainable catalyst for the Suzuki-Miyaura coupling reaction, demonstrating good catalytic conversion and recyclability. This work attempts to showcase a protocol for reusing waste palladium generated in water to fabricate heterogeneous catalysts and, thereby, promote the circular economy concept.",

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Bashri, M, Kumar, S, Bhandari, P, Stephen, S, O’Connor, MJ, Gaber, S, Škorjanc, T, Finšgar, M, Luckachan, GE, Belec, B, Alhseinat, E, Mukherjee, PS & Shetty, D 2025, 'Hydrazone-Linked Covalent Organic Framework Catalyst via Efficient Pd Recovery from Wastewater', ACS Applied Materials and Interfaces, vol. 17, no. 12, pp. 17804-17812. https://doi.org/10.1021/acsami.4c07706

TY - JOUR

T1 - Hydrazone-Linked Covalent Organic Framework Catalyst via Efficient Pd Recovery from Wastewater

AU - Bashri, Mahira

AU - Kumar, Sushil

AU - Bhandari, Pallab

AU - Stephen, Sasi

AU - O’Connor, Matthew J.

AU - Gaber, Safa

AU - Škorjanc, Tina

AU - Finšgar, Matjaž

AU - Luckachan, Gisha Elizabeth

AU - Belec, Blaž

AU - Alhseinat, Emad

AU - Mukherjee, Partha Sarathi

AU - Shetty, Dinesh

PY - 2025/3/26

Y1 - 2025/3/26

N2 - Global consumption and discharge of palladium (Pd) have raised environmental concerns but also present an opportunity for the sustainable recovery and reuse of this precious metal. Adsorption has proven to be an efficient method for the selective recovery of Pd from industrial wastewater. This study investigated a hydrazone-linked covalent organic framework (Tfpa-Od COF) as a potential material for the high-affinity adsorption of Pd2+ ions from wastewater, achieving a Kd value of 3.62 × 106 mL g-1. The electron-rich backbone of the COF contributes to its excellent selective removal efficiency (up to 100%) and adsorption capacity of 372.59 mg g-1. Furthermore, the Pd-adsorbed COF was evaluated as a sustainable catalyst for the Suzuki-Miyaura coupling reaction, demonstrating good catalytic conversion and recyclability. This work attempts to showcase a protocol for reusing waste palladium generated in water to fabricate heterogeneous catalysts and, thereby, promote the circular economy concept.

AB - Global consumption and discharge of palladium (Pd) have raised environmental concerns but also present an opportunity for the sustainable recovery and reuse of this precious metal. Adsorption has proven to be an efficient method for the selective recovery of Pd from industrial wastewater. This study investigated a hydrazone-linked covalent organic framework (Tfpa-Od COF) as a potential material for the high-affinity adsorption of Pd2+ ions from wastewater, achieving a Kd value of 3.62 × 106 mL g-1. The electron-rich backbone of the COF contributes to its excellent selective removal efficiency (up to 100%) and adsorption capacity of 372.59 mg g-1. Furthermore, the Pd-adsorbed COF was evaluated as a sustainable catalyst for the Suzuki-Miyaura coupling reaction, demonstrating good catalytic conversion and recyclability. This work attempts to showcase a protocol for reusing waste palladium generated in water to fabricate heterogeneous catalysts and, thereby, promote the circular economy concept.

KW - catalysis

KW - covalent organic frameworks

KW - palladium adsorption

KW - sustainability

KW - water purification

UR - https://www.scopus.com/pages/publications/105001209603

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DO - 10.1021/acsami.4c07706

M3 - Article

C2 - 39166842

AN - SCOPUS:105001209603

SN - 1944-8244

VL - 17

SP - 17804

EP - 17812

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 12

ER -

Hydrazone-Linked Covalent Organic Framework Catalyst via Efficient Pd Recovery from Wastewater

Abstract

UN SDGs

Keywords

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