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Chemical Structure| 87258-18-2 Chemical Structure| 87258-18-2

Structure of 87258-18-2

Chemical Structure| 87258-18-2

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Zadehnazari, Amin ; Auras, Florian ; Altaf, Ataf Ali ; Zarei, Amin ; Khosropour, Ahmadreza ; Amirjalayer, Saeed , et al.

Abstract: The rising demand for gold requires innovative methods for its recovery from e-waste. Here we present the synthesis of two tetrazine-based vinyl-linked covalent organic frameworks: TTF-COF and TPE-COF that adsorb gold ions and nanoparticles and catalyze the carboxylation of terminal alkynes. These covalent organic frameworks have low band gaps and high photocurrent responses. TTF-COF has an adsorption capacity toward aqueous Au(III) of 2440 mg g–1, and TPE-COF’s Au(III) adsorption capacity is 1639 mg g–1. The gold source is metal flakes isolated from waste computer processing units. Of the gold present, > 99% is selectively captured by TTF-COF whereas only 5% of the Ni and 2% of the Cu in the solution is adsorbed. The Au-loaded covalent organic frameworks catalyze the carboxylation of terminal alkynes and are stable and reusable for six reuse cycles. Our covalent organic frameworks convert e-waste into a valuable catalyst for a useful green organic transformation.

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Product Details of [ 87258-18-2 ]

CAS No. :87258-18-2
Formula : C10H4O4S4
M.W : 316.40
SMILES Code : O=CC1=C(C=O)S/C(S1)=C2SC(C=O)=C(C=O)S\2
MDL No. :N/A

Safety of [ 87258-18-2 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319
Precautionary Statements:P501-P270-P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313-P301+P312+P330
 

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