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Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity

[Image: see text] The chemical hardness of adsorbents is an important physicochemical property in the process of adsorption based on the hard and soft acids and bases (HSAB) theory. Tuning chemical hardness of adsorbents modulated by their concomitants is a promising approach to enhance the adsorpti...

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Autores principales: Li, Hongping, Zhu, Siwen, Zhang, Ming, Wu, Peiwen, Pang, Jingyu, Zhu, Wenshuai, Jiang, Wei, Li, Huaming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2017
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644707/
https://www.ncbi.nlm.nih.gov/pubmed/31457807
http://dx.doi.org/10.1021/acsomega.7b00795
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author Li, Hongping
Zhu, Siwen
Zhang, Ming
Wu, Peiwen
Pang, Jingyu
Zhu, Wenshuai
Jiang, Wei
Li, Huaming
author_facet Li, Hongping
Zhu, Siwen
Zhang, Ming
Wu, Peiwen
Pang, Jingyu
Zhu, Wenshuai
Jiang, Wei
Li, Huaming
author_sort Li, Hongping
collection PubMed
description [Image: see text] The chemical hardness of adsorbents is an important physicochemical property in the process of adsorption based on the hard and soft acids and bases (HSAB) theory. Tuning chemical hardness of adsorbents modulated by their concomitants is a promising approach to enhance the adsorptive capacity in principle. In the present work, we report an efficient strategy that the adsorption capacity for aromatic sulfocompounds can be enhanced by tuning the chemical hardness. This strategy is first theoretically explored by introducing C element into the network of hexagonal boron nitride (h-BN) based on a series of model materials (model_xC, x = 1–5). Computational results show that the chemical hardness is reduced after gradually C-doping, which may lead to an enhancement of adsorption capacity according to the HSAB theory. Then, a series of C-doped h-BN materials (BCN-x, x = 10–50) were controlled synthesized. All of the as-prepared materials show better adsorption capacities (e.g., 27.43 mg g(–1) for BCN-50) than pure h-BN. Experiment results show that the adsorption capacity correlates well with the C content in the BCN-x, which is consistent with the results predicted by theoretical calculation. This strategy may be helpful to rationally design highly efficient adsorbents in separation engineering and may be expanded to similar two-dimensional materials, where the π–π interaction is the dominant driven force.
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spelling pubmed-66447072019-08-27 Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity Li, Hongping Zhu, Siwen Zhang, Ming Wu, Peiwen Pang, Jingyu Zhu, Wenshuai Jiang, Wei Li, Huaming ACS Omega [Image: see text] The chemical hardness of adsorbents is an important physicochemical property in the process of adsorption based on the hard and soft acids and bases (HSAB) theory. Tuning chemical hardness of adsorbents modulated by their concomitants is a promising approach to enhance the adsorptive capacity in principle. In the present work, we report an efficient strategy that the adsorption capacity for aromatic sulfocompounds can be enhanced by tuning the chemical hardness. This strategy is first theoretically explored by introducing C element into the network of hexagonal boron nitride (h-BN) based on a series of model materials (model_xC, x = 1–5). Computational results show that the chemical hardness is reduced after gradually C-doping, which may lead to an enhancement of adsorption capacity according to the HSAB theory. Then, a series of C-doped h-BN materials (BCN-x, x = 10–50) were controlled synthesized. All of the as-prepared materials show better adsorption capacities (e.g., 27.43 mg g(–1) for BCN-50) than pure h-BN. Experiment results show that the adsorption capacity correlates well with the C content in the BCN-x, which is consistent with the results predicted by theoretical calculation. This strategy may be helpful to rationally design highly efficient adsorbents in separation engineering and may be expanded to similar two-dimensional materials, where the π–π interaction is the dominant driven force. American Chemical Society 2017-09-05 /pmc/articles/PMC6644707/ /pubmed/31457807 http://dx.doi.org/10.1021/acsomega.7b00795 Text en Copyright © 2017 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Li, Hongping
Zhu, Siwen
Zhang, Ming
Wu, Peiwen
Pang, Jingyu
Zhu, Wenshuai
Jiang, Wei
Li, Huaming
Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity
title Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity
title_full Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity
title_fullStr Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity
title_full_unstemmed Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity
title_short Tuning the Chemical Hardness of Boron Nitride Nanosheets by Doping Carbon for Enhanced Adsorption Capacity
title_sort tuning the chemical hardness of boron nitride nanosheets by doping carbon for enhanced adsorption capacity
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644707/
https://www.ncbi.nlm.nih.gov/pubmed/31457807
http://dx.doi.org/10.1021/acsomega.7b00795
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