p Hierarchically porous hydrogels and aerogels based on reduced graphene oxide, montmorillonite and hyper-crosslinked resins for water and air remediation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F22%3APU142003" target="_blank" >RIV/00216305:26620/22:PU142003 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1385894721047380?dgcid=author" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894721047380?dgcid=author</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cej.2021.133162" target="_blank" >10.1016/j.cej.2021.133162</a>
Alternative languages
Result language
angličtina
Original language name
p Hierarchically porous hydrogels and aerogels based on reduced graphene oxide, montmorillonite and hyper-crosslinked resins for water and air remediation
Original language description
A new sustainable solution to water and air pollution based on spontaneously adsorbent materials is presented in this work. For the first time, high surface area micro/mesoporous hyper-crosslinked resins (XDV) were engineered in hydrogels and aerogels based on reduced graphene oxide (rGO) and montmorillonite (MMT). Hydrogels and aerogels were obtained through a mild and environmental-friendly procedure based on graphene oxide (GO) reduction by vitamin C and eventual lyophilization. In all systems, the XDV specific surface area (SSA) is completely exposed and exploitable for adsorption application in water and air. rGO/XDV and rGO/ MMT/XDV aerogels containing 50 wt% of XDV show hierarchical porosity and high SSA, reaching values of 1000-1200 m2/g. Hydrogels and aerogels show tuneable polar character on the basis of their composition, which is exploitable to develop customized adsorbents for water and air remediation from aromatic and polar pollutants. Indeed, while hydrogels containing MMT show high adsorption capacity towards cationic dyes such as rhodamine 6G, rGO and rGO/XDV systems show marked affinity for toluene. In all cases, the embedding of the hyper-crosslinked resins in the hydrogels and aerogels further enhances their adsorption capacity, with uptakes up to 482 mg/g of rhodamine 6G for rGO/MMT/XDV hydrogels and up to 500 mg/g of toluene vapours for rGO/ XDV aerogels. Both systems show regenerable adsorption properties with efficiency higher than 96% over 5 adsorption/desorption cycles.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20701 - Environmental and geological engineering, geotechnics
Result continuities
Project
<a href="/en/project/LM2018110" target="_blank" >LM2018110: CzechNanoLab research infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
CHEMICAL ENGINEERING JOURNAL
ISSN
1385-8947
e-ISSN
1873-3212
Volume of the periodical
430
Issue of the periodical within the volume
4
Country of publishing house
CH - SWITZERLAND
Number of pages
10
Pages from-to
1-10
UT code for WoS article
000740971400005
EID of the result in the Scopus database
2-s2.0-85119200405