“Pre-seeding”-assisted synthesis of a high performance polyamide-zeolite nanocomposite membrane for water purification

2010 ◽  
Vol 34 (10) ◽  
pp. 2101 ◽  
Author(s):  
Chunlong Kong ◽  
Takuji Shintani ◽  
Toshinori Tsuru
Keyword(s):  
Water Purification ◽  
High Performance ◽  
Nanocomposite Membrane

Scalable and hierarchically designed MOF fabrics by netting MOFs into nanofiber networks for high-performance solar-driven water purification

2021 ◽  
Author(s):  
Jian Xiong ◽  
Ailin Li ◽  
Ye Liu ◽  
Liming Wang ◽  
Xiaohong Qin ◽  
...  
Keyword(s):  
Water Purification ◽  
High Performance ◽  
Metal Organic Frameworks ◽  
Industrial Applications ◽  
Polymeric Matrices ◽  
Metal Organic

Integrating metal-organic frameworks (MOFs) into flexible polymeric matrices can improve their practical processibility and enlarge industrial applications greatly. However, current methods suffer from the serious aggregation of MOFs, low MOF...

scholarly journals Fabrication of High-Performance Thin-Film Composite Nanofiltration Membrane by Dynamic Calcium-Carboxyl Intra-Bridging during Post-Treatment

Membranes ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 137
Author(s):  
Hongyi Han ◽  
Ruobin Dai ◽  
Zhiwei Wang
Keyword(s):  
Thin Film ◽  
Water Purification ◽  
High Performance ◽  
Rejection Rate ◽  
Post Treatment ◽  
Nanofiltration Membrane ◽  
Film Composite ◽  
Thin Film Composite ◽  
Post Modification

Widespread applications of nanofiltration (NF) and reverse osmosis (RO)-based processes for water purification and desalination call for high-performance thin-film composite (TFC) membranes. In this work, a novel and facile modification method was proposed to fabricate high-performance thin-film composite nanofiltration membrane by introducing Ca2+ in the heat post-treatment. The introduction of Ca2+ induced in situ Ca2+-carboxyl intra-bridging, leading to the embedment of Ca2+ in the polyamide (PA) layer. This post modification enhanced the hydrophilicity and surface charge of NF membranes compared to the pristine membrane. More interestingly, the modified membrane had more nodules and exhibited rougher morphology. Such changes brought by the addition of Ca2+ enabled the significant increase of water permeability (increasing from 17.9 L·m−2·h−1·bar−1 to 29.8 L·m−2·h−1·bar−1) while maintaining a high selectivity (Na2SO4 rejection rate of 98.0%). Furthermore, the intra-bridging between calcium and carboxyl imparted the NF membranes with evident antifouling properties, exhibiting milder permeability decline of 4.2% (compared to 16.7% of NF-control) during filtration of sodium alginate solution. The results highlight the potential of using Ca2+-carboxyl intra-bridging post-treatment to fabricate high-performance TFC membranes for water purification and desalination.

scholarly journals Proposal of a High-Performance Water Purification System Based on Organic Removal Characteristic.

1994 ◽  
Vol 20 (3) ◽  
pp. 360-366
Author(s):  
Yasuo Koseki ◽  
Nobuko Hashimoto ◽  
Kazuhiko Takino ◽  
Toshihiko Kaneko ◽  
Syunji Honma
Keyword(s):  
Water Purification ◽  
High Performance ◽  
Organic Removal ◽  
Water Purification System ◽  
Purification System

Sustainable Biochar-Based Solar Absorbers for High-Performance Solar-Driven Steam Generation and Water Purification

2019 ◽  
Vol 7 (23) ◽  
pp. 19311-19320 ◽  
Author(s):  
Lin Yang ◽  
Guoliang Chen ◽  
Nan Zhang ◽  
Yunxiang Xu ◽  
Xiaofeng Xu
Keyword(s):  
Water Purification ◽  
High Performance ◽  
Steam Generation ◽  
Solar Absorbers

Morphology Control Studies of MnTiO3 Nanostructures with Exposed {0001} Facets as a High-Performance Catalyst for Water Purification

2018 ◽  
Vol 10 (37) ◽  
pp. 31631-31640 ◽  
Author(s):  
Da Wang ◽  
Haodan Xu ◽  
Jun Ma ◽  
Xiaohui Lu ◽  
Jingyao Qi ◽  
...  
Keyword(s):  
Water Purification ◽  
High Performance ◽  
Morphology Control

scholarly journals High-performance asymmetric isoporous nanocomposite membranes with chemically-tailored amphiphilic nanochannels

2020 ◽  
Vol 8 (19) ◽  
pp. 9554-9566 ◽  
Author(s):  
Zhenzhen Zhang ◽  
Md. Mushfequr Rahman ◽  
Clarissa Abetz ◽  
Volker Abetz
Keyword(s):  
Small Molecules ◽  
High Performance ◽  
Nanocomposite Membrane ◽  
Nanocomposite Membranes

An isoporous nanocomposite membrane is fabricated and displays the potential to separate small molecules with good antifouling and high permeance.

Ultralong Hydroxyapatite Nanowire-Based Filter Paper for High-Performance Water Purification

2019 ◽  
Vol 11 (4) ◽  
pp. 4288-4301 ◽  
Author(s):  
Qiang-Qiang Zhang ◽  
Ying-Jie Zhu ◽  
Jin Wu ◽  
Yue-Ting Shao ◽  
An-Yong Cai ◽  
...  
Keyword(s):  
Water Purification ◽  
Filter Paper ◽  
High Performance
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