2019
DOI: 10.1021/acs.est.9b02355
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Multifunctional Piezoelectric Heterostructure of BaTiO3@Graphene: Decomplexation of Cu-EDTA and Recovery of Cu

Abstract: About 3.93 billion tons of wastewater containing heavy metal complexes are discharged (e.g., from the electroplating industry) every year in China alone. It is challenging to appropriately treat such wastewaters. Here, a multifunctional composite nanowires BaTiO3@graphene was designed based on Comsol simulations and made into 3D millimeter-sphere in order to facilitate practical application. Results indicate 100% of Cu-EDTA was decomplexed in situ via piezoelectric potential by BaTiO3@graphene. Notably, the ad… Show more

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Cited by 84 publications
(31 citation statements)
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“…Notably, the generated radicals by piezocatalytic PTFE include the •OH, •O 2 − , 1 O 2 , and •H, which are among the strongest aqueous redox species that have utility in a range of biological, chemical, and environmental applications. For example, piezocatalysis has been utilized in wastewater purification as mechanical vibration that drives the piezocatalysis is a green energy resource 43 46 . The piezocatalytic decomposition of methyl orange (MO) dye as a function of time during ultrasound irradiation of PTFE electret particles is displayed in Fig.…”
Section: Resultsmentioning
confidence: 99%
“…Notably, the generated radicals by piezocatalytic PTFE include the •OH, •O 2 − , 1 O 2 , and •H, which are among the strongest aqueous redox species that have utility in a range of biological, chemical, and environmental applications. For example, piezocatalysis has been utilized in wastewater purification as mechanical vibration that drives the piezocatalysis is a green energy resource 43 46 . The piezocatalytic decomposition of methyl orange (MO) dye as a function of time during ultrasound irradiation of PTFE electret particles is displayed in Fig.…”
Section: Resultsmentioning
confidence: 99%
“…Reproduced with permission. [ 180 ] Copyright 2019, American Chemical Society. e,f) Piezocatalysis using BaTiO 3 nanoparticles for tooth whitening and g) the color difference (Δ E )/time curve.…”
Section: Applications Of Piezocatalysis and Piezo‐photocatalysismentioning
confidence: 99%
“…While relying on the high surface potentials of BaTiO 3 /graphene heterostructure (Figure 22c), Pan et al achieved the decomplexation of EDTA and copper recovery via piezocatalysis (Figure 22d). [ 180 ]…”
Section: Applications Of Piezocatalysis and Piezo‐photocatalysismentioning
confidence: 99%
See 1 more Smart Citation
“…Piezocatalysis has been mainly reported for organic pollutant degradation [7]. ZnO [8], MoS 2 [9], NaNbO 3 [10], and PbTiO 3 [11], BaTiO 3 [12] etc., have already been reported for piezocatalytic applications. In the piezocatalysis field, much attention has given to piezocatalysis using BaTiO 3 catalyst.…”
Section: Introductionmentioning
confidence: 99%