Metal oxide and carbon nanomaterial based membranes for reverse osmosis and membrane distillation: A comparative review

Khan, Asad; Maitlo, Hubdar Ali; Khan, Imtiaz Afzal; Lim, Dae-Hwan; Zhang, Ming; Kim, Ki‐Hyun; Lee, Jechan; Kim, Jong Oh

doi:10.1016/j.envres.2021.111716

Cited by 45 publications

(9 citation statements)

References 117 publications

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“…Therefore, proper membrane fabrication and modification are required prior to use in heavy metal removal processes. Limitations of the reverse osmosis process are flux stability and salt removal rate, which are the major constraints, and efforts should be made to avoid those limitations.…”

Section: Physical Methodsmentioning

confidence: 99%

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

Carolin

Kamalesh

Kumar³

et al. 2023

Ind. Eng. Chem. Res.

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Heavy metal pollution results in enormous environmental impacts and significant human health problems. Because of their extreme toxicity and lack of biodegradability, heavy metal ions in water are considered problematic. Although the removal of various heavy metal ions from wastewater has been widely investigated, heavy metal contamination still requires effective and suitable remediation. With special attention on heavy metal removal, this study reviews recent advances, breakthroughs, and potential applications of various physical, chemical, and biological methods. Each treatment method has specific mechanisms of interaction with metal ions, which are described in this review. The discussion in this review leads to the conclusion that adsorption has the best potential which leads to the sustainable remediation of heavy metals. In summary, the review provides a new perspective on heavy metal reduction and encourages the development of innovative strategies for heavy metal removal. The main current problems and prospects in this field are highlighted in this review.

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Section: Physical Methodsmentioning

confidence: 99%

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

Carolin

Kamalesh

Kumar³

et al. 2023

Ind. Eng. Chem. Res.

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“…The outstanding properties of SiO 2 , including excellent dielectric breakdown strength (>10 9 V/m), high resistivity (>10 14 Ω·cm), large band gap (∼9 eV), and compatibility with current silicon-based devices, make it ideal for many applications in microelectronics and optoelectronics. In addition, with the rapid development of nanoscale devices and technologies, nanoscale patterns of SiO 2 have been used for various applications, such as biosensing, nanometer scale membranes, and information technology, to fulfill ever increasing demands of nanoscale devices with regards to dimensionality. SiO 2 nanopatterning is typically performed by using optical lithography or electron beam lithography.…”

Section: Introductionmentioning

confidence: 99%

Sequential Infiltration Synthesis of Silicon Dioxide in Polymers with Ester Groups─Insight from In Situ Infrared Spectroscopy

Biswas,

Rozyyev,

Mane

et al. 2024

J. Phys. Chem. C

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New strategies to synthesize nanometer-scale silicon dioxide (SiO 2 ) patterns have drawn much attention in applications such as microelectronic and optoelectronic devices, membranes, and sensors, as we are approaching device dimensions shrinking below 10 nm. In this regard, sequential infiltration synthesis (SIS), a two-step gas-phase molecular assembly process that enables localized inorganic material growth in the targeted reactive domains of polymers, is an attractive process. In this work, we performed in situ Fourier transform infrared spectroscopy (FTIR) measurements during SiO 2 SIS to investigate the reaction mechanism of trimethylaluminum (TMA) and tri(tert-pentoxy) silanol (TPS) precursors with polymers having ester functional groups (poly(methyl methacrylate) (PMMA), poly(ethyl methacrylate) (PEMA), polycaprolactone (PCL), and poly(t-butyl methacrylate) (PBMA)), for the purpose of growing patterned nanomaterials. The FTIR results show that for PMMA and PEMA, a lower percentage of functional groups participated in the reactions and formed weak and unstable complexes. In contrast, almost all functional groups in PCL and PBMA participated in the reactions and showed stable and irreversible interactions with TMA. We discovered that the amount of SiO 2 formed is not directly correlated with the number of interacting functional groups. These insights into the SiO 2 SIS mechanism will enable nanopatterning of SiO 2 for low-dimensional applications.

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“…Installations of desalination by reverse osmosis have progressively expanded and represent nowadays about 80% of the whole desalination installations in the world. The main advantage of RO over distillation is its ability to escalate the desalination process due to its lower energy and surface area consumption, its simplicity of use, its advanced characteristics and lower cost, but more importantly, the development of new and more efficient RO membranes and the development of energy recovery systems that have made the technology more affordable (Gullinkala et al, 2010;A. A. Khan et al, 2021;Pangarkar et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Emerging advances of composite membranes for seawater pre-treatment: A review

Zari

Jaspal

Malviya³

et al. 2023

Preprint

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Currently, as the population continues to grow, the preservation of the world’s water resources is becoming a serious challenge. The seawater desalination process is considered a sustainable option for the future. The two most common technologies used in desalination are reverse osmosis (RO) and membrane distillation (MD). However, membrane fouling caused by the accumulation of contaminants membrane surface is an emerging and growing problem. then a pre-treatment stage is required to reach an optimal efficiency during desalination process, since this stage is crucial for a successful desalination process. In this regard, developing new material-based composite membranes has the potential to upgrade the anti-fouling features of RO membranes and thereby enhance the desalination efficiency due to the characteristics of these composite membranes especially, their high permeability, hydrophilicity, selectivity mechanical strength, thermal stability, and anti-bacterial property. The objective of this review is to present the main techniques for seawater pre-treatment. the results of several membrane types and methods of modification were also discussed. Finally, the performance of composite membranes for seawater pre-treatment is defined and future perspectives are highlighted.

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Metal oxide and carbon nanomaterial based membranes for reverse osmosis and membrane distillation: A comparative review

Cited by 45 publications

References 117 publications

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

Sequential Infiltration Synthesis of Silicon Dioxide in Polymers with Ester Groups─Insight from In Situ Infrared Spectroscopy

Emerging advances of composite membranes for seawater pre-treatment: A review

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