A chitosan–Pt nanoparticles/carbon nanotubes-doped phosphomolybdate nanocomposite as a platform for the sensitive detection of nitrite in tap water

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 937-946 ◽  
Author(s):  
Zhenyuan Bai ◽  
Chunlei Zhou ◽  
Ning Gao ◽  
Haijun Pang ◽  
Huiyuan Ma

A polyoxometalate-based composite film decorated with CNTs and Pt–CHIT NPs was constructed on an electrode using the LBL self-assembly method. It acted as an electrochemical nitrite sensor with greatly enhanced electron transfer ability and sensing performance.

2014 ◽  
Vol 989-994 ◽  
pp. 789-792
Author(s):  
Shu Ping Liu ◽  
Wei Wang ◽  
Lin Lin Cui ◽  
Hua Nan Guan

Electrochromic composite film consisting of TiO2, chitosan (CS) and carbon nanotubes (CNTs) were fabricated on quartz and FTO substrates by the layer-by-layer self-assembly method (LbL). The multilayer film was characterized by UV-vis spectrum, scanning electron microscopy (SEM), cyclic voltammetry (CV) and chronoamperometric (CA) and in situ spectral electrochemicalmeasurements. The composite material shows high electrochromic performance, with the optical contrast of 11.5% and coloration efficiency of 21.7 cm2/C at 800 nm. The results indicate great promise for the TiO2-based film as a potential material in electrochromic devices.


2010 ◽  
Vol 10 (10) ◽  
pp. 6586-6593 ◽  
Author(s):  
Wanqing Yue ◽  
Dongyun Zheng ◽  
Chengguo Hu ◽  
Shengshui Hu

2022 ◽  
Vol 9 ◽  
Author(s):  
Huaxu Zhou ◽  
Yao Ding ◽  
Ruobing Su ◽  
Dongming Lu ◽  
Hongliang Tang ◽  
...  

Convenient and sensitive detection of active analytes in complex matrix is crucial in biological, medical, and environmental analysis. Silica nanochannel array film (SNF) equipped electrochemical sensors have shown excellent anti-fouling performance in direct analysis of complex samples. In this work, we demonstrated an electrochemical sensor with anti-fouling performance for highly sensitive detection of acetaminophen (APAP) based on SNF supported by ß-cyclodextrin-graphene (CDG) nanocomposite modified Au film electrode (AuF). Because of their rich surface hydroxyls and 2D lamellar structure, CDG on AuF can serve as the nanoadhesive for compact binding SNF, which can be grown by electrochemical assisted self-assembly method in a few seconds. Attributable to the electrocatalytic property of graphene and the synergistic enrichment from both CD and SNF nanochannels towards analyte, the SNF/CDG/AuF sensor demonstrates sensitive detection of acetaminophen ranged from 0.2 to 50 μM with an ultralow limit-of-detection of 14 nM. Taking advantage of the anti-fouling ability of SNF, the sensor is able to realize accurate and convenient analysis of APAP in commercially available paracetamol tablets.


RSC Advances ◽  
2018 ◽  
Vol 8 (15) ◽  
pp. 7899-7903 ◽  
Author(s):  
Haibo Wang ◽  
Wei Wang ◽  
Yufen Zhao ◽  
Zhiwei Xu ◽  
Lei Chen ◽  
...  

In this study, we report a large-scale and low cost approach for the synthesis of three-dimensional (3D) polyvinyl alcohol/carbon nanotubes nanoporous architecture using self-assembly method.


2017 ◽  
Vol 922 ◽  
pp. 012023
Author(s):  
Hu Li ◽  
Ishtiaq Hassan Wani ◽  
Anumol Ashok ◽  
Yuanyuan Han ◽  
S. Hassan M. Jafri ◽  
...  

2019 ◽  
Vol 7 (44) ◽  
pp. 13896-13903 ◽  
Author(s):  
Shuaishuai Zhou ◽  
Tongle Xu ◽  
Fang Jiang ◽  
Na Song ◽  
Liyi Shi ◽  
...  

In this study, we report a flexible polyamide-imide (PAI)/boron nitride nanosheet (BNNS) composite film with improved thermal conductivity by doping boron nitride quantum dots (BNQDs) using an evaporation-induced self-assembly method.


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