Shrimp Shell-Inspired Antifouling Chitin Nanofibrous Membrane for Efficient Oil/Water Emulsion Separation with In Situ Removal of Heavy Metal Ions

2018 ◽  
Vol 7 (2) ◽  
pp. 2064-2072 ◽  
Author(s):  
Liyu Yan ◽  
Peiyuan Li ◽  
Weikang Zhou ◽  
Zhiguo Wang ◽  
Xianmou Fan ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Nanofibrous Membrane ◽  
Water Emulsion ◽  
Shrimp Shell ◽  
Emulsion Separation ◽  
Oil Water

Fabrication of P(AN-MA)/rGO-g-PAO Superhydrophilic Nanofiber Membrane for Removal of Heavy Metal Ions

2020 ◽  
Vol 20 (3) ◽  
pp. 1685-1696 ◽  
Author(s):  
Weijing Wang ◽  
Na Han ◽  
Chao Yang ◽  
Wenxin Zhang ◽  
Jinlei Miao ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Water Solution ◽  
Membrane Surface ◽  
Rejection Rate ◽  
Nanofiber Membrane ◽  
Water Emulsion ◽  
Smooth Structures ◽  
Oil Water

The process in which the nanofiber membrane is used to remove heavy metal ions and separation of oil-water solution is analyzed. Herein, smooth structures are induced by rGO-g-PAO sheets, which could be attributed to the strong interaction between P(AN-MA) and rGO-g-PAO. It is rewarding to note that the P(AN-MA)/rGO-g-PAO nanofiber membrane would exhibit superhydrophilic traits in the air and ultra-low oil-adhesive traits underwater when the concentration of P(AN-MA) and PAO is 13 wt.% and 0.3 wt.%, respectively. The amidoxime (–C(NH2) NOH) groups on the membrane surface can efficiently adsorb copper (Cu(II)) (1.65 mmol/g) and chromium (Cr(VI)) (4.70 mmol/g) ions in the waste water. Meanwhile, the P(AN-MA)/rGO-g-PAO nanofiber membrane exhibits ultrahigh flux (~6150 LMH), satisfying rejection rate (~97%) and outstanding flux recovery ratio (~99%) in separating oil water emulsion.

Metal in situ surface functionalization of polymer-grafted-carbon nanotube composite membranes for fast efficient nanofiltration

2017 ◽  
Vol 5 (2) ◽  
pp. 583-592 ◽  
Author(s):  
Faizal Soyekwo ◽  
Qiugen Zhang ◽  
Runsheng Gao ◽  
Yan Qu ◽  
Ruixue Lv ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Carbon Nanotube ◽  
Metal Ions ◽  
Surface Functionalization ◽  
Heavy Metal Ions ◽  
Composite Membranes ◽  
Carbon Nanotube Composite

Metal in situ surface functionalized PEI-g-MWCNT membranes are facilely prepared for nanofiltration of heavy metal ions in solution with high fluxes.

Photo-Fenton self-cleaning membranes with robust flux recovery for an efficient oil/water emulsion separation

2019 ◽  
Vol 7 (14) ◽  
pp. 8491-8502 ◽  
Author(s):  
Atian Xie ◽  
Jiuyun Cui ◽  
Jin Yang ◽  
Yangyang Chen ◽  
Jiangdong Dai ◽  
...  
Keyword(s):  
Complex Assembly ◽  
Water Emulsion ◽  
Emulsion Separation ◽  
Oil Water ◽  
Self Cleaning

Photo-Fenton self-cleaning membranes have been developed by TA-Fe(iii) complex assembly, followed by the in situ mineralization of β-FeOOH for efficient oil/water emulsions separation.

Designing a reductive hybrid membrane to selectively capture noble metallic ions during oil/water emulsion separation with further function enhancement

2018 ◽  
Vol 6 (22) ◽  
pp. 10217-10225 ◽  
Author(s):  
Lei Zhang ◽  
Xianhu Zha ◽  
Gui Zhang ◽  
Jincui Gu ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Metal Ions ◽  
Noble Metal ◽  
Hybrid Membrane ◽  
Metallic Ions ◽  
Water Emulsion ◽  
Emulsion Separation ◽  
Oil Water

A reductive hybrid membrane successfully achieved preferential recovery of noble metal ions during oil/water emulsion separation with recyclability.

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