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Journal article
Scalable and sustainable production of Ti3C2Tz MXene and fluorine recovery from wastewater through cryolite precipitation
RSC advances, v 12(47), pp 30846-30850
27 Oct 2022
Abstract
Treatment of HF or HCl/LiF etched Ti
3
C
2
T
z
with 0.05 M NaHCO
3
before water washing reduces the wastewater generated by 75%. When etched with HF, cryolite (Na
3
AlF
6
) precipitation from spent etching waste effectively removes fluorine from this waste stream, offers insight into the etching chemistry of MAX to MXene, and provides an effective analytical tool for optimization of MXene production. Additionally, washing HF etched multilayered Ti
3
C
2
T
z
with 0.05 M NaHCO
3
allows for the production of delaminated Ti
3
C
2
T
z
colloidal suspensions, which typically requires the use of TBAOH or DMSO for intercalation and subsequent delamination. Ti
3
C
2
T
z
made with HCl/LiF and washed with 0.05 M NaHCO
3
yields a colloidal suspension with a concentration of 18 mg mL
−1
and a film conductivity of 1150 S cm
−1
.
Treatment of HF or HCl/LiF etched Ti
3
C
2
T
z
with 0.05 M NaHCO
3
before water washing reduces the wastewater generated by 75%. Cryolite is precipated from the spent etching media.
Metrics
Details
- Title
- Scalable and sustainable production of Ti3C2Tz MXene and fluorine recovery from wastewater through cryolite precipitation
- Creators
- Michael S. Carey - Department of Materials Science and Engineering, Drexel University PhiladelphiaMichel W. Barsoum - Drexel University
- Publication Details
- RSC advances, v 12(47), pp 30846-30850
- Publisher
- The Royal Society of Chemistry
- Grant note
- 2211049 / ;
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000876030800001
- Scopus ID
- 2-s2.0-85142455244
- Other Identifier
- 991019244750704721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Chemistry, Multidisciplinary