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Machine-learning-assisted screening of pure-silica zeolites for effective removal of linear siloxanes and derivatives

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Abstract

As emerging organic contaminants, siloxanes have severe impacts on the environment and human health. Simple linear siloxanes and derivates, trimethylsilanol (TMS), dimethylsilanediol (DMSD), monomethylsilanetriol (MMST), and dimethylsulfone (DMSO2), are four persistent and common problematic compounds (PCs) from the hydroxylation and sulfuration of polydimethylsiloxanes. Herein, through a two-step computational process, namely Grand Canonical Monte Carlo (GCMC) simulations and machine learning (ML), we systematically screened 50 959 hypothetical pure-silica zeolites and identified 230 preeminent zeolites with excellent adsorption performances with all these four linear siloxanes and derivates. This work vividly demonstrates that the collocation of data-driven science and computational chemistry can greatly accelerate materials discovery and help solve the most challenging separation problems in environmental science.

Graphical abstract: Machine-learning-assisted screening of pure-silica zeolites for effective removal of linear siloxanes and derivatives

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Supplementary files

Article information


Submitted
29 Oct 2019
Accepted
21 Dec 2019
First published
23 Dec 2019

J. Mater. Chem. A, 2020, Advance Article
Article type
Paper

Machine-learning-assisted screening of pure-silica zeolites for effective removal of linear siloxanes and derivatives

S. Lin, Y. Wang, Y. Zhao, L. R. Pericchi, A. J. Hernández-Maldonado and Z. Chen, J. Mater. Chem. A, 2020, Advance Article , DOI: 10.1039/C9TA11909D

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