Recent developments in forward osmosis membranes using carbon-based nanomaterials

Yadav, Sudesh; Saleem, Haleema; Ibrar, Ibrar; Naji, Osamah; Hawari, Alaa H.; Alanezi, Adnan Alhathal; Zaidi, Syed Javaid; Altaee, Ali; Zhou, John L.

doi:10.1016/j.desal.2020.114375

Cited by 137 publications

(63 citation statements)

References 207 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Membrane-based techniques have recently been broadly utilized in water purification and separation of contaminated wastewater due to their low energy consumption, excellent separation performance, reliability, space-saving efficiency, and environmental friendliness [ 1 , 2 ]. Unfortunately, the protein separation membrane used for filtration can be afflicted by several problems related to biological and organic fouling, which raises the operating costs.…”

Section: Introductionmentioning

confidence: 99%

Zwitterionic Polymer Brush Grafted on Polyvinylidene Difluoride Membrane Promoting Enhanced Ultrafiltration Performance with Augmented Antifouling Property

et al. 2020

View full text Add to dashboard Cite

Superhydrophilic zwitterions on the membrane surface have been widely exploited to improve antifouling properties. However, the problematic formation of a <20 nm zwitterionic layer on the hydrophilic surface remains a challenge in wastewater treatment. In this work, we focused on the energy consumption and time control of polymerization and improved the strong hydrophilicity of the modified polyvinylidene difluoride (PVDF) membrane. The sulfobetaine methacrylate (SBMA) monomer was treated with UV-light through polymerization on the PVDF membrane at a variable time interval of 30 to 300 s to grow a poly-SBMA (PSBMA) chain and improve the membrane hydrophilicity. We examined the physiochemical properties of as-prepared PVDF and PVDF–PSBMAx using numeric analytical tools. Then, the zwitterionic polymer with controlled performance was grafted onto the SBMA through UV-light treatment to improve its antifouling properties. The PVDF–PSBMA120s modified membrane exhibited a greater flux rate and indicated bovine serum albumin (BSA) rejection performance. PVDF–PSBMA120s and unmodified PVDF membranes were examined for their antifouling performance using up to three cycles dynamic test using BSA as foulant. The PVDF-modified PSBMA polymer improved the antifouling properties in this experiment. Overall, the resulting membrane demonstrated an enhancement in the hydrophilicity and permeability of the membrane and simultaneously augmented its antifouling properties.

show abstract

Section: Introductionmentioning

confidence: 99%

Zwitterionic Polymer Brush Grafted on Polyvinylidene Difluoride Membrane Promoting Enhanced Ultrafiltration Performance with Augmented Antifouling Property

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The increased understanding of the nanomaterial properties paves the way to develop advanced novel materials in the future and have the possibility to improve the quality of life. Nanomaterials are currently used in various fields, and several studies have been carried out on their environmental impact to the surroundings [10][11][12][13][14]. Nanomaterials are gradually becoming commercialized, starting to develop as commodities, and are utilized in several state-of-the-art technological applications as well as products, inclusive of an extensive variety of consumer products.…”

Section: Introductionmentioning

confidence: 99%

Recent Developments in the Application of Nanomaterials in Agroecosystems

Saleem

Zaidi

2020

Nanomaterials

Self Cite

View full text Add to dashboard Cite

Nanotechnology implies the scientific research, development, and manufacture, along with processing, of materials and structures on a nano scale. Presently, the contamination of metalloids and metals in the soil has gained substantial attention. The consolidation of nanomaterials and plants in ecological management has received considerable research attention because certain nanomaterials could enhance plant seed germination and entire plant growth. Conversely, when the nanomaterial concentration is not properly controlled, toxicity will definitely develop. This paper discusses the role of nanomaterials as: (1) nano-pesticides (for improving the plant resistance against the biotic stress); and (2) nano-fertilizers (for promoting the plant growth by providing vital nutrients). This review analyzes the potential usages of nanomaterials in agroecosystem. In addition, the adverse effects of nanomaterials on soil organisms are discussed. We mostly examine the beneficial effects of nanomaterials such as nano-zerovalent iron, iron oxide, titanium dioxide, nano-hydroxyapatite, carbon nanotubes, and silver- and copper-based nanomaterials. Some nanomaterials can affect the growth, survival, and reproduction of soil organisms. A change from testing/using nanomaterials in plants for developing nanomaterials depending on agricultural requirements would be an important phase in the utilization of nanomaterials in sustainable agriculture. Conversely, the transport as well as ecological toxicity of nanomaterials should be seriously examined for guaranteeing its benign usage in agriculture.

show abstract

“…Integrating Equation 11, at boundary conditions t = 0, J = J 0 and re-arranging leads to Equation (12).…”

Section: The Adsorption Model For Predicting Permeate Flux Decline Inmentioning

confidence: 99%

Organic Fouling in Forward Osmosis: A Comprehensive Review

Yadav

Ibrar

Bakly

et al. 2020

Water

Self Cite

View full text Add to dashboard Cite

Organic fouling in the forward osmosis process is complex and influenced by different parameters in the forward osmosis such as type of feed and draw solution, operating conditions, and type of membrane. In this article, we reviewed organic fouling in the forward osmosis by focusing on wastewater treatment applications. Model organic foulants used in the forward osmosis literature were highlighted, which were followed by the characteristics of organic foulants when real wastewater was used as feed solution. The various physical and chemical cleaning protocols for the organic fouled membrane are also discussed. The study also highlighted the effective pre-treatment strategies that are effective in reducing the impact of organic fouling on the forward osmosis (FO) membrane. The efficiency of cleaning methods for the removal of organic fouling in the FO process was investigated, including recommendations on future cleaning technologies such as Ultraviolet and Ultrasound. Generally, a combination of physical and chemical cleaning is the best for restoring the water flux in the FO process.

show abstract

Recent developments in forward osmosis membranes using carbon-based nanomaterials

Cited by 137 publications

References 207 publications

Zwitterionic Polymer Brush Grafted on Polyvinylidene Difluoride Membrane Promoting Enhanced Ultrafiltration Performance with Augmented Antifouling Property

Zwitterionic Polymer Brush Grafted on Polyvinylidene Difluoride Membrane Promoting Enhanced Ultrafiltration Performance with Augmented Antifouling Property

Recent Developments in the Application of Nanomaterials in Agroecosystems

Organic Fouling in Forward Osmosis: A Comprehensive Review

Contact Info

Product

Resources

About