Thin-film nanocomposite nanofiltration membrane with enhanced desalination and antifouling performance via incorporating L-aspartic acid functionalized graphene quantum dots

Desalination ◽  
2021 ◽  
Vol 498 ◽  
pp. 114811 ◽  
Author(s):  
Chenpu Wu ◽  
Quanling Xie ◽  
Zhuan Hong ◽  
Lufang Shen ◽  
Tong Yu ◽  
...  
Optik ◽  
2019 ◽  
Vol 178 ◽  
pp. 802-812 ◽  
Author(s):  
Nur Syahira Md Ramdzan ◽  
Yap Wing Fen ◽  
Nur Alia Sheh Omar ◽  
Nur Ain Asyiqin Anas ◽  
Wan Mohd Ebtisyam Mustaqim Mohd Daniyal ◽  
...  

2019 ◽  
Vol 120 ◽  
pp. 105724 ◽  
Author(s):  
Nur Ain Asyiqin Anas ◽  
Yap Wing Fen ◽  
Nur Alia Sheh Omar ◽  
Nur Syahira Md Ramdzan ◽  
Wan Mohd Ebtisyam Mustaqim Mohd Daniyal ◽  
...  

Crystals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 875
Author(s):  
Najwa Norimanina Muhammad Rosddi ◽  
Yap Wing Fen ◽  
Nur Ain Asyiqin Anas ◽  
Nur Alia Sheh Omar ◽  
Nur Syahira Md Ramdzan ◽  
...  

In this study, highly functional cationically modified nanocrystalline cellulose (NCC)/carboxyl-functionalized graphene quantum dots (CGQD) has been described. The surface of NCC was first modified with hexadecyltrimethylammonium bromide (CTA) before combining with CGQD. The CGQD, CTA-NCC and CTA-NCC/CGQD nanocomposites thin films were prepared using spin coating technique. The obtained nanocomposite thin films were then characterized by using the Fourier transform infrared spectroscopy (FTIR) which confirmed the existence of hydroxyl groups, carboxyl groups and alkyl groups in CTA-NCC/CGQD. The optical properties of the thin films were characterized using UV–Vis spectroscopy. The absorption of CTA-NCC/CGQD was high with an optical band gap of 4.127 eV. On the other hand, the CTA-NCC/CGQD nanocomposite thin film showed positive responses towards glucose solution of different concentration using an optical method based on surface plasmon resonance phenomenon. This work suggests that the novel nanocomposite thin film has potential for a sensing application in glucose detection.


2021 ◽  
Author(s):  
Xu Dan ◽  
Ruiyi Li ◽  
Qinsheng Wang ◽  
Yongqiang Yang ◽  
Haiyan Zhu ◽  
...  

The paper reports the synthesis of nickel-silver-graphene quantum dot-graphene hybrid. Histidine-functionalized graphene quantum dots (His-GQDs) were bonded to graphene oxide (GO) and then combined with Ni2+ and Ag+ to form...


2021 ◽  
Vol 623 ◽  
pp. 119077
Author(s):  
Rumwald Leo G. Lecaros ◽  
Reincess E. Valbuena ◽  
Lemmuel L. Tayo ◽  
Wei-Song Hung ◽  
Chien-Chieh Hu ◽  
...  

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