Polymer Nanocomposite Membranes for Water Treatment

Robust Polymer Nanocomposite Membranes Incorporating Discrete TiO2 Nanotubes for Water Treatment

Nanomaterials ◽

10.3390/nano9091186 ◽

2019 ◽

Vol 9 (9) ◽

pp. 1186 ◽

Cited By ~ 4

Author(s):

Mahdi ◽

Kumar ◽

Goswami ◽

Perdicakis ◽

Shankar ◽

...

Keyword(s):

Organic Matter ◽

Water Treatment ◽

Oil Sands ◽

Tio2 Nanotubes ◽

Water Flux ◽

Polymer Nanocomposite ◽

Nanocomposite Membranes ◽

Practical Applications ◽

Modified Polymer ◽

Pes Membrane

Polyethersulfone (PES) is a polymeric permeable material used in ultrafiltration (UF) membranes due to its high thermomechanical and chemical stability. The hydrophobic nature of PES membranes renders them prone to fouling and restricts the practical applications of PES in the fabrication of water treatment membranes. The present study demonstrates a non-solvent-induced phase separation (NIPS) approach to modifying PES membranes with different concentrations of discrete TiO2 nanotubes (TNTs). Zeta potential and contact angle measurements showed enhanced hydrophilicity and surface negative charge in TNTs/PES nanocomposite membranes compared to unmodified PES membranes. To discern the antifouling and permeation properties of the TNTs/PES membranes, steam assisted gravity drainage (SAGD) wastewater obtained from the Athabasca oil sands of Alberta was used. The TiO2 modified polymer nanocomposite membranes resulted in a higher organic matter rejection and water flux than the unmodified PES membrane. The addition of discrete TNTs at 1 wt% afforded maximum water flux (82 L/m2 h at 40 psi), organic matter rejection (53.9%), and antifouling properties (29% improvement in comparison to pristine PES membrane). An enhancement in fouling resistance of TNTs/PES nanocomposite membranes was observed in flux recovery ratio experiments.

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Tailored polymer nanocomposite membranes based on carbon, metal oxide and silicon nanomaterials: a review

Journal of Materials Chemistry A ◽

10.1039/c8ta11460a ◽

2019 ◽

Vol 7 (15) ◽

pp. 8723-8745 ◽

Cited By ~ 46

Author(s):

Meenakshi Sundaram Sri Abirami Saraswathi ◽

Alagumalai Nagendran ◽

Dipak Rana

Keyword(s):

Water Treatment ◽

Metal Oxide ◽

Polymer Nanocomposite ◽

Nanoscale Materials ◽

Nanocomposite Membranes ◽

Separation Processes ◽

The Past ◽

Structure Synthesis

Research into the structure, synthesis and properties of nanoscale materials has increased at an enormous pace over the past decades since they have a wide variety of applications ranging from adsorption to separation processes in water treatment.

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A Review on Polymer Nanocomposites and Their Effective Applications in Membranes and Adsorbents for Water Treatment and Gas Separation

Membranes ◽

10.3390/membranes11020139 ◽

2021 ◽

Vol 11 (2) ◽

pp. 139

Author(s):

Oluranti Agboola ◽

Ojo Sunday Isaac Fayomi ◽

Ayoola Ayodeji ◽

Augustine Omoniyi Ayeni ◽

Edith E. Alagbe ◽

...

Keyword(s):

Greenhouse Gases ◽

Polymer Nanocomposites ◽

Gas Separation ◽

Rapid Growth ◽

Dye Removal ◽

Anthropogenic Activities ◽

Polymer Nanocomposite ◽

Population Increase ◽

Nanocomposite Membranes

Globally, environmental challenges have been recognised as a matter of concern. Among these challenges are the reduced availability and quality of drinking water, and greenhouse gases that give rise to change in climate by entrapping heat, which result in respirational illness from smog and air pollution. Globally, the rate of demand for the use of freshwater has outgrown the rate of population increase; as the rapid growth in town and cities place a huge pressure on neighbouring water resources. Besides, the rapid growth in anthropogenic activities, such as the generation of energy and its conveyance, release carbon dioxide and other greenhouse gases, warming the planet. Polymer nanocomposite has played a significant role in finding solutions to current environmental problems. It has found interest due to its high potential for the reduction of gas emission, and elimination of pollutants, heavy metals, dyes, and oil in wastewater. The revolution of integrating developed novel nanomaterials such as nanoparticles, carbon nanotubes, nanofibers and activated carbon, in polymers, have instigated revitalizing and favourable inventive nanotechnologies for the treatment of wastewater and gas separation. This review discusses the effective employment of polymer nanocomposites for environmental utilizations. Polymer nanocomposite membranes for wastewater treatment and gas separation were reviewed together with their mechanisms. The use of polymer nanocomposites as an adsorbent for toxic metals ions removal and an adsorbent for dye removal were also discussed, together with the mechanism of the adsorption process. Patents in the utilization of innovative polymeric nanocomposite membranes for environmental utilizations were discussed.

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Aligned CNT/Polymer nanocomposite membranes for hydrogen separation

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2009.02.068 ◽

2009 ◽

Vol 34 (9) ◽

pp. 3977-3982 ◽

Cited By ~ 79

Author(s):

Anshu Sharma ◽

Sumit Kumar ◽

Balram Tripathi ◽

M. Singh ◽

Y.K. Vijay

Keyword(s):

Polymer Nanocomposite ◽

Hydrogen Separation ◽

Nanocomposite Membranes

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Pyrolysis kinetic behavior and TG-FTIR-GC–MS analysis of end-life ultrafiltration polymer nanocomposite membranes

Chemical Engineering Journal ◽

10.1016/j.cej.2021.131181 ◽

2021 ◽

pp. 131181

Author(s):

Samy Yousef ◽

Justas Eimontas ◽

Nerijus Striūgas ◽

Alaa Mohamed ◽

Mohammed AliAbdelnaby

Keyword(s):

Polymer Nanocomposite ◽

Kinetic Behavior ◽

Nanocomposite Membranes ◽

Ms Analysis ◽

Pyrolysis Kinetic

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Polymer Nanocomposite Membranes

Applied Sciences ◽

10.3390/app8071181 ◽

2018 ◽

Vol 8 (7) ◽

pp. 1181 ◽

Cited By ~ 8

Author(s):

Svetlana Kononova ◽

Galina Gubanova ◽

Eleonora Korytkova ◽

Denis Sapegin ◽

Katerina Setnickova ◽

...

Keyword(s):

Thermal Properties ◽

Polymer Matrix ◽

Scientific Literature ◽

Morphological Characteristics ◽

Polymer Nanocomposite ◽

Nanocomposite Materials ◽

Sorption Mechanism ◽

Nanocomposite Membranes ◽

Nanocomposite Structure ◽

Transport Channels

Based on the results of research works reflected in the scientific literature, the main examples, methods and approaches to the development of polymer inorganic nanocomposite materials for target membranes are considered. The focus is on membranes for critical technologies with improved mechanical, thermal properties that have the necessary capabilities to solve the problems of a selective pervaporation. For the purpose of directional changes in the parameters of membranes, effects on their properties of the type, amount and conditions of nanoparticle incorporation into the polymer matrix were analyzed. An influence of nanoparticles on the structural and morphological characteristics of the nanocomposite film is considered, as well as possibilities of forming transport channels for separated liquids are analyzed. Particular attention is paid to a correlation of nanocomposite structure-transport properties of membranes, whose separation characteristics are usually considered within the framework of the diffusion-sorption mechanism.

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