Surface coating of UF membranes to improve antifouling properties: A comparison study between cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs)

Bai, Langming; Liu, Yatao; Ding, An; Ren, Nanqi; Li, Guibai

doi:10.1016/j.chemosphere.2018.10.219

Cited by 97 publications

(25 citation statements)

References 30 publications

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“…Bai et al have shown earlier that cellulose nanocrystals have signicant advantages over cellulose nano-bers regarding antifouling properties. 18 Nevertheless, later studies showed that T-CNF provides not only antifouling properties but also antibacterial properties compared to cellulose nanocrystals. 19 The aim of this work was to develop a scalable method to coat polyethersulfone (PES) MF membranes having an average pore size of 0.2 mm with nanocellulose and produce a UF membrane.…”

Section: Introductionmentioning

confidence: 99%

Charged ultrafiltration membranes based on TEMPO-oxidized cellulose nanofibrils/poly(vinyl alcohol) antifouling coating

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Charged ultrafiltration membranes based on TEMPO-oxidized cellulose nanofibrils/poly(vinyl alcohol) antifouling coating

et al. 2021

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“…Cellulose was injected in the texture of the mixed matrix membranes (MMMs) for micro- and ultra-filtration, MF and UF, respectively; also, it was filled in the TFN membranes in reverse osmosis and forward osmosis (FO) modes. As a MMMs additive, Bai et al [17] coated CNCs and cellulose nanofibers (CNFs) on polyethersulfone UF membranes surface where both additives increased the permeability and antifouling properties of the membrane. CNFs grafted membranes showed a slightly better performance than CNCs grafted membranes in terms of water flux, while CNCs grafted membranes showed better performance in terms of reversible and irreversible fouling properties toward humic acid and bovine serum albumin.…”

Section: Introductionmentioning

confidence: 99%

Role of Cellulose Micro and Nano Crystals in Thin Film and Support Layer of Nanocomposite Membranes for Brackish Water Desalination

et al. 2019

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Reverse osmosis is a major process that produces soft water from saline water, and its output represents the majority of the overall desalination plants production. Developing efficient membranes for this process is the aim of many research groups and companies. In this work, we studied the effect of adding cellulose micro crystals (CMCs) and cellulose nano crystals (CNCs) to the support layer and thin film nanocomposite (TFN) membrane on the desalination performance. SEM, TEM, ATR-FTIR, and contact angle measurements were used to characterize the membrane’s properties; and membrane’s performance were evaluated by water flux and NaCl rejection. Filling 2% of CNCs gel in the support layer improved the water flux by +40%, while salt rejection maintained almost the same, around 95%. However, no remarkable improvement was gained by adding CNCs gel to m-phenylenediamine (MPD) solution, which was used in TFN membrane preparation. Filling CMCs powder in TFN membrane led to a slight improvement in terms of water flux.

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“…More ideally, cellulose‐based nanomaterials carry similar features including high aspect ratios, rich hydroxyl groups, and strong mechanical strengths. [ 26,27,40–45 ] For instance, a cellulose derivative, cellulose acetate, was first dissolved in organic solvents and cast as desalination membranes in the late 1950s and made reverse osmosis membranes viable for commercial use. [ 46 ] Nanosized cellulose materials are now used as additives in polymer matrices or coating materials.…”

Section: Engineered Nanowood For Water and Wastewater Treatment And Energy Recoverymentioning

confidence: 99%

Advanced Nanowood Materials for the Water–Energy Nexus

Chen

Zhu

et al. 2020

Advanced Materials

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Wood materials are being reinvented to carry superior properties for a variety of new applications. Cutting‐edge nanomanufacturing transforms traditional bulky and low‐value woods into advanced materials that have desired structures, durability, and functions to replace nonrenewable plastics, polymers, and metals. Here, a first prospect report on how novel nanowood materials have been developed and applied in water and associated industries is provided, wherein their unique features and promises are discussed. First, the unique hierarchical structure and associated properties of the material are introduced, and then how such features can be harnessed and modified by either bottom‐up or top‐down manufacturing to enable different functions for water filtration, chemical adsorption and catalysis, energy and resource recovery, as well as energy‐efficient desalination and environmental cleanup are discussed. The study recognizes that this is a nascent but very promising field; therefore, insights are offered to encourage more research and development. Trees harness solar energy and CO2 and provide abundant carbon‐negative materials. Once harvested and utilized, it is believed that advanced wood materials will play a vital role in enabling a circular water economy.

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Surface coating of UF membranes to improve antifouling properties: A comparison study between cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs)

Cited by 97 publications

References 30 publications

Charged ultrafiltration membranes based on TEMPO-oxidized cellulose nanofibrils/poly(vinyl alcohol) antifouling coating

Charged ultrafiltration membranes based on TEMPO-oxidized cellulose nanofibrils/poly(vinyl alcohol) antifouling coating

Role of Cellulose Micro and Nano Crystals in Thin Film and Support Layer of Nanocomposite Membranes for Brackish Water Desalination

Advanced Nanowood Materials for the Water–Energy Nexus

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