Robust PANI-entangled CNTs Electro-responsive membranes for enhanced In-situ generation of H2O2 and effective separation of charged contaminants

Jiang, Longxin; Rastgar, Masoud; Wang, Chunrong; Ke, Shu; He, Lei; Chen, Xiaoya; Song, Yifan; He, Can; Wang, Jianbing; Sadrzadeh, Mohtada

doi:10.1016/j.seppur.2022.122274

Cited by 9 publications

(4 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8a), suggesting that PANI played a positive role in enhancing electrochemical oxidation of the conductive membrane. 108…”

Section: Application In Water Treatmentmentioning

confidence: 99%

“…It was shown that charge transfer resistance within the PANI/CNTs membrane was decreased by a factor of 5 compared to a CNTs membrane that was not crosslinked with PANI. 108 In addition, the 1D structure of CNTs provides an excellent specific surface area for aniline polymerisation because of the polymerisation of aniline and its dependence on the morphology and structure of the base membrane and dopant. Therefore, the doping of CNTs can effectively improve the overall conductivity of PANI membranes, but the irregular arrangement of CNTs and excessive doping may lead to the formation of defects on the membrane surface, which affects the water treatment performance of the membrane.…”

Section: Nanomaterials Doping Modificationmentioning

confidence: 99%

“…8a), suggesting that PANI played a positive role in enhancing electrochemical oxidation of the conductive membrane. 108 For weakly charged or uncharged organic contaminants, the pore sizes and uniformities of conventional polymer membranes usually determine the separation performance. Synthesis of membrane materials with small pore sizes places Environmental Science: Water Research & Technology Critical review strict requirements on the preparation method and causes some contaminants to be gradually transferred to the membrane during adsorption under pressure, which affects the permeation flux of the membrane.…”

Section: Enhanced Contaminant Removalmentioning

confidence: 99%

See 2 more Smart Citations

Preparation, modification and antifouling properties of polyaniline conductive membranes for water treatment: a comprehensive review

Hao,

Wang,

Wang

et al. 2024

Environ. Sci.: Water Res. Technol.

View full text Add to dashboard Cite

show abstract

“…8a), suggesting that PANI played a positive role in enhancing electrochemical oxidation of the conductive membrane. 108…”

Section: Application In Water Treatmentmentioning

confidence: 99%

Section: Nanomaterials Doping Modificationmentioning

confidence: 99%

Section: Enhanced Contaminant Removalmentioning

confidence: 99%

See 1 more Smart Citation

Preparation, modification and antifouling properties of polyaniline conductive membranes for water treatment: a comprehensive review

Hao,

Wang,

Wang

et al. 2024

Environ. Sci.: Water Res. Technol.

View full text Add to dashboard Cite

show abstract

“…Multi-walled carbon nanotubes (MWCNTs) have obtained much attention due to its unique hexagonal structure and excellent properties. 10,11 The membranes modified by MWCNTs have remarkable mechanical, electrical, and other properties. 12,13 However, due to the easy agglomeration of MWCNTs and weak interaction with PVDF, it has to be modified.…”

Section: Introductionmentioning

confidence: 99%

Improved performance of polyvinylidene fluoride membrane blended with modified multi‐walled carbon nanotubes by electret treatment

Shi,

Wang,

Hou

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this paper, electret treatment was used to enhance the electrostatic repulsion between the membrane and bovine serum albumin, so as to improve the anti‐fouling ability and recycling rate of the membrane. The polarization charge is provided by the dipole orientation of polyvinylidene fluoride (PVDF) materials, and the space charge is composed of the interfacial charge between the filler and the matrix and the bulk charge of the hollow structure of the multi‐walled carbon nanotubes. The results showed that after electret treatment, the surface potential of the membrane increased, the PVDF crystal type changed from α to β, and the crystallinity increased. Grafting of N‐vinylpyrrolidone onto multi‐walled carbon nanotubes (MWCNTs‐g‐PVP), which contain a large number of hydrophilic groups after modification, reduces the contact angle of the composite film from 86.9° to 62.7°. The pure water flux and flux recovery rate of MWCNTs‐g‐PVP/PVDF composite membranes after electret treatment was increased from 189.31 L·m−2·h−1 and 90% to 233.55 L·m−2·h−1 and 94.7%, respectively, and the rejection rate increased about 30%. Through the circulation experiment, it can be seen that the anti‐fouling performance and recycling rate of the membrane is improved, which is caused by electrostatic repulsion.

show abstract

Electro‐Conductive Ti₃C₂ MXene Multilayered Membranes: Dye Removal and Antifouling Performance

Zandi,

Rastgar,

Mohseni

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

This work describes the fabrication of a novel electroconductive membrane made of Ti3C2Tx (MXene) nanosheet coating through a one‐step pressure‐assisted technique. Ti3C2‐MXene is firmly attached over a polyamide–imide (PAI) microfilter by employing a binder composed of carboxymethyl cellulose (CMC)/glutaraldehyde (GA). Through coating a proper amount of multilayer Ti3C2‐MXene, the electrical conductivity of 174 ± 0.16 S m−1 is achieved. The rejection rates of reactive red 120 (RR120), reactive black (RB), and methyl orange (MO) by the pristine PAI membrane are 45.2%, 40.81%, and 33.65%, respectively. However, rejection rates significantly improve with the Ti3C2 MXene coating to over 99.71%, 97.95%, and 68.91% for RR120, RB, and MO. Applying a 4 V cathodic potential resulted in a flux recovery ratio (FRR) of 99.83% and a flux decline rate (FDR) of less than 1% during humic acid (HA) filtration. Without applying voltage, the MXene‐coated membrane shows an FRR and FDR of 92.51% and 45.56%, respectively. Surface energy analysis reveals strong repulsive interactions between foulants and the membrane surface. Moreover, the surface free energy indicates that foulants such as sodium alginate (SA) and bovine serum albumin (BSA) exhibit stronger adhesion to the membrane than HA, consistent with the fouling experiment results.

show abstract

Robust PANI-entangled CNTs Electro-responsive membranes for enhanced In-situ generation of H2O2 and effective separation of charged contaminants

Cited by 9 publications

References 60 publications

Preparation, modification and antifouling properties of polyaniline conductive membranes for water treatment: a comprehensive review

Preparation, modification and antifouling properties of polyaniline conductive membranes for water treatment: a comprehensive review

Improved performance of polyvinylidene fluoride membrane blended with modified multi‐walled carbon nanotubes by electret treatment

Electro‐Conductive Ti₃C₂ MXene Multilayered Membranes: Dye Removal and Antifouling Performance

Contact Info

Product

Resources

About

Robust PANI-entangled CNTs Electro-responsive membranes for enhanced In-situ generation of H2O2 and effective separation of charged contaminants

Cited by 9 publications

References 60 publications

Preparation, modification and antifouling properties of polyaniline conductive membranes for water treatment: a comprehensive review

Preparation, modification and antifouling properties of polyaniline conductive membranes for water treatment: a comprehensive review

Improved performance of polyvinylidene fluoride membrane blended with modified multi‐walled carbon nanotubes by electret treatment

Electro‐Conductive Ti3C2 MXene Multilayered Membranes: Dye Removal and Antifouling Performance

Contact Info

Product

Resources

About

Electro‐Conductive Ti₃C₂ MXene Multilayered Membranes: Dye Removal and Antifouling Performance