A chitosan-separation-layer nanofiltration membrane prepared through homogeneous hybrid and copper ion enhancement

Zhao, Guo-biao; Hao, Yufan; He, Benqiao; Song, Yunfei; Ji, Yanhong; Zhang, Yuhong; Liao, Bo; Li, Jianxin

doi:10.1016/j.seppur.2019.116084

Cited by 19 publications

(10 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, Zhao et al [ 71 ] describe the deposition of an active chitosan (CS)/polyphosphate (SPP) active layer onto a hydrolyzed PAN support by means of ionic crosslinking and LbL deposition, followed by a functionalization with copper divalent ions (see Figure 10 ). The resulting PAN-CS-SSP-Cu thin film composite membrane showed better hydrophilicity and higher pure water flux combined with a notable increase in salt and organic molecule rejection.…”

Section: Polymeric Membranes Modified By Copper Incorporationmentioning

confidence: 99%

“… Distribution of the different techniques used for modified membranes with copper. The diagrams are plotted using the data presented in articles [ 14 , 27 , 28 , 32 , 36 , 40 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 81 , 82 , 83 , 84 , 85 , 86 , 87 ]. …”

Section: Figurementioning

confidence: 99%

“… Diagrammatic sketch of membrane fabrication process of CSPM-Cu(II)/mPAN: ( a ) formation of CSPs, ( b ) deposition of CSP suspension onto mPAN to form CSPM/mPAN, ( c ) Cu(II) chelation of CSPM/mPAN to form CSPM-Cu(II)/mPAN. Extracted from [ 71 ]. …”

Section: Figurementioning

confidence: 99%

“…During the last 10 years, the notable use of copper-based materials for modifying MF [ 44 , 45 , 46 , 47 , 48 ], UF [ 28 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 ], NF [ 42 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 ], forward osmosis (FO) [ 72 , 73 , 74 , 75 ] and RO membranes [ 14 , 21 , 27 , 32 , 76 , 77 , 78 , 79 , 80 ] has attained much attention by the scientific community (according to the search strategy and eligibility criteria used, see Supplementary Materials , Prisma checklist, Prisma flow diagram and SRProtocol). The combination of these polymeric membranes with copper materials such as metallic and oxides nanoparticles, salts, composites, metal-polymer complex, and coordination polymers, offer a solution against biofouling formation, and, in addition, promote the improvement of other membrane properties.…”

Section: Introductionmentioning

confidence: 99%

“…The combination of these polymeric membranes with copper materials such as metallic and oxides nanoparticles, salts, composites, metal-polymer complex, and coordination polymers, offer a solution against biofouling formation, and, in addition, promote the improvement of other membrane properties. For these reasons, different membrane modification routes have been explored, including the incorporation of copper-based materials during the synthesis process of the membrane or the surface membrane modification using physical and chemical surface modification techniques (See Figure 2 ) [ 4 , 11 , 12 , 27 , 44 , 64 , 71 , 75 , 76 , 77 ]. Thus, the copper influence on membrane properties beyond the anti-biofouling effect, the impact of the modification, and the used method on the overall membrane properties and performance are aspects to be analyzed.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Copper-Modified Polymeric Membranes for Water Treatment: A Comprehensive Review

et al. 2021

View full text Add to dashboard Cite

In the last decades, the incorporation of copper in polymeric membranes for water treatment has received greater attention, as an innovative potential solution against biofouling formation on membranes, as well as, by its ability to improve other relevant membrane properties. Copper has attractive characteristics: excellent antimicrobial activity, high natural abundance, low cost and the existence of multiple cost-effective synthesis routes for obtaining copper-based materials with tunable characteristics, which favor their incorporation into polymeric membranes. This study presents a comprehensive analysis of the progress made in the area regarding modified membranes for water treatment when incorporating copper. The notable use of copper materials (metallic and oxide nanoparticles, salts, composites, metal-polymer complexes, coordination polymers) for modifying microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), forward osmosis (FO) and reverse osmosis (RO) membranes have been identified. Antibacterial and anti-fouling effect, hydrophilicity increase, improvements of the water flux, the rejection of compounds capacity and structural membrane parameters and the reduction of concentration polarization phenomena are some outstanding properties that improved. Moreover, the study acknowledges different membrane modification approaches to incorporate copper, such as, the incorporation during the membrane synthesis process (immobilization in polymer and phase inversion) or its surface modification using physical (coating, layer by layer assembly and electrospinning) and chemical (grafting, one-pot chelating, co-deposition and mussel-inspired PDA) surface modification techniques. Thus, the advantages and limitations of these modifications and their methods with insights towards a possible industrial applicability are presented. Furthermore, when copper was incorporated into membrane matrices, the study identified relevant detrimental consequences with potential to be solved, such as formation of defects, pore block, and nanoparticles agglomeration during their fabrication. Among others, the low modification stability, the uncontrolled copper ion releasing or leaching of incorporated copper material are also identified concerns. Thus, this article offers modification strategies that allow an effective copper incorporation on these polymeric membranes and solve these hinders. The article finishes with some claims about scaling up the implementation process, including long-term performance under real conditions, feasibility of production at large scale, and assessment of environmental impact.

show abstract

Section: Polymeric Membranes Modified By Copper Incorporationmentioning

confidence: 99%