Electrospinning PVA/PEI/rGO Fibrous Membrane and Its Adsorption of Cr(VI) and Congo Red in Water

Wang, Na; Xiao, Dan

doi:10.1021/acs.iecr.3c03254

Cited by 2 publications

(1 citation statement)

References 59 publications

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“…Although numerous reported materials exhibit favorable adsorption capacity for Cr(VI), ,, effectively treating actual wastewater with trace concentration contaminates to meet the allowable drinking water standards established by WHO (≤0.05 mg L –1 ) and GB 21900-2008 (≤0.5 mg L –1 ) remains a considerable obstacle . It is thus interesting to study whether the LDH synthesized within this work could realize this goal.…”

Section: Resultsmentioning

confidence: 99%

Superstable Mineralization Coupled with Photocatalysis toward Cr(VI) Remediation Using Layered Double Hydroxide Material

Wang,

Ren,

Liu

et al. 2024

Ind. Eng. Chem. Res.

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The extensive utilization of chromium in electroplating, leather tanning, dyeing, and other industries has resulted in significant environmental pollution. Therefore, there is a pressing need for highly efficient materials to tackle the pollution caused by Cr(VI). Throughout the study, a variety of layered double hydroxides (LDHs) were synthesized, and the NiCr-LDH showed remarkable removal properties for the heavy metal chromium. The NiCr-LDH exhibits rapid equilibrium within 60 min and possesses a maximum capacity of 218 mg/g. Notably, when exposed to visible light, the ability of NiCr-LDH to remove toxic Cr(VI) anions is significantly improved, and it is capable of treating actual electroplating wastewater to remove the Cr concentration to well below 0.5 mg/L. In-depth analysis revealed compelling evidence that the highly toxic Cr(VI) anions transformed into harmless Cr(III) anions, resulting in an improved removal efficiency.

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