Sonochemical recovery of uranium from nanosilica-based sorbent and its biohybrid

Lahiri, S.; Mishra, Archana; Mandal, D.; Bhardwaj, Rekha; Gogate, Parag R.

doi:10.1016/j.ultsonch.2021.105667

Cited by 10 publications

(9 citation statements)

References 46 publications

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“…The kinetic data showed that the ceria recovery followed a surface reaction control mechanism, in contrast to the ash diffusion control mechanism reported earlier for uranium [4] and yttrium [5] , [40] . Fig.…”

Section: Resultscontrasting

confidence: 90%

Sonocatalytic recovery of ceria from graphite and inhibition of graphite erosion by ionic liquid based platinum nanocatalyst

Lahiri

Mandal

Biswas

et al. 2022

Ultrasonics Sonochemistry

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Section: Resultscontrasting

confidence: 90%

Sonocatalytic recovery of ceria from graphite and inhibition of graphite erosion by ionic liquid based platinum nanocatalyst

Lahiri

Mandal

Biswas

et al. 2022

Ultrasonics Sonochemistry

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“…Synthesized doughnut shaped microstructures have shown more than 85 ± 2% of total uranium uptake in just 10 min and 92% uptake in 120 min. However, while recovery, it was observed that the adsorption capacity of microstructures was reduced from 92% to 67% [73]. This may be due to the changes in morphology and loss of adsorption sites after acid and ultrasonics treatment.…”

Section: Remediation Of Heavy Metals and Bioprocessingmentioning

confidence: 97%

“…In our laboratory, we have synthesized various spray dried microstructures using silica nanoparticles and biomolecules through the process of spray drying [71,72]. Microstructures of silica NPs and Streptococcus lactis (S. lactis) cells were prepared, applied for removal of uranium from aqueous solution and recovery of adsorbed uranium were also studied [27,73]. It was observed that various morphologies can be achieved by varying the physicochemical parameters of the spray drying process.…”

Section: Remediation Of Heavy Metals and Bioprocessingmentioning

confidence: 99%

Applicability of Spray Drying Technique to Prepare Nano-Micro Carriers: A Review

2021

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Nano-micro carriers loaded with drugs and active biomolecules have gained a lot of attention in the field of health care, agriculture, and the food industry. Various methods have been explored to synthesize nano-micro carriers. However, there is still a constant search to develop a method for the preparation of a large quantity of nano-micro carriers with high loading efficiency. In this regard, spray drying could be a potential technique because of its inherent features like ease to operate, cost-effectiveness, environment-friendly, single step, and scalable. In this review, the focus is on the applicability of spray drying technique to prepare nano-micro carriers which are loaded with drugs, microorganisms, and other active molecules. Subsequently, the application and usefulness of spray-dried products in different research areas like the food industry, remediation of heavy metals and bioprocessing, and drug delivery have been presented. Furthermore, advantages, limitations, and recent developments in the area of spray drying have been discussed. This review presents a glimpse of spray drying techniques to synthesize nano-micro carriers with a wide range of applications.

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“…On the other hand, uranium leaching into 6-8 M HNO3 solutions from uranium-impregnated spherical graphite tokens with a diameter of ca. 15 mm is accelerated on 7-15% only under the effect of 20-40 kHz ultrasound [66]. However, at [HNO3] = 12 M and 20 kHz ultrasound the significant loss of uranium is observed due to the graphite erosion and formation of graphitic dust.…”

Section: Sonochemical Reactions Of Actinides In Heterogeneous Systemsmentioning

confidence: 98%

Sonochemistry of actinides: from ions to nanoparticles and beyond

2022

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Sonochemistry studies chemical and physical effects in liquids submitted to power ultrasound. These effects arise not from a direct interaction of molecules with sound waves, but rather from the acoustic cavitation: the nucleation, growth, and implosive collapse of microbubbles in liquids submitted to power ultrasound. The violent implosion of bubbles leads to the formation of chemically reactive species. In principle, each cavitation bubble can be considered as a microreactor initiating chemical reactions at mild conditions. In addition, microjets and shock waves accompanied bubble collapse produce fragmentation, dispersion and erosion of solid surfaces or particles. Microbubbles oscillating in liquids also enable nucleation and precipitation of nanosized actinide compounds with specific morphology. This review focuses on the versatile sonochemical processes with actinide ions and particles in homogenous solutions and heterogenous systems. The redox reactions in aqueous solutions, dissolution or precipitation of refractory solids, synthesis of actinide nanoparticles, and ultrasonically driving decontamination are considered. The guideline for further research is also discussed.

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Sonochemical recovery of uranium from nanosilica-based sorbent and its biohybrid

Abstract: Highlights Intensified reprocessing of silica-based microstructures and its biohybrid. Parametric study of reprocessing of microstructures. Kinetics of uranium recovery from substrates. Morphology and recyclability study of the substrates after sonication and uranium recovery.

Cited by 10 publications

References 46 publications

Sonocatalytic recovery of ceria from graphite and inhibition of graphite erosion by ionic liquid based platinum nanocatalyst

Sonocatalytic recovery of ceria from graphite and inhibition of graphite erosion by ionic liquid based platinum nanocatalyst

Applicability of Spray Drying Technique to Prepare Nano-Micro Carriers: A Review

Sonochemistry of actinides: from ions to nanoparticles and beyond

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