Graphene oxide as a corrosion-inhibitive coating on magnesium alloys

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44149-44159 ◽  
Author(s):  
Zhaozhong Qiu ◽  
Rui Wang ◽  
Jinzhu Wu ◽  
Yushen Zhang ◽  
Yunfei Qu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxide Film ◽  
Magnesium Alloys ◽  
Self Assembly ◽  
Physical Separation ◽  
Assembly Method ◽  
Peo Coatings

A graphene oxide film was formed on the PEO coatings of magnesium alloys via an electrostatic self-assembly method, which functioned as a physical separation with inhibiting effects between the protected metal and reactants.

scholarly journals Self-assembly modification of polyamide membrane by coating titanium dioxide nanoparticles for water treatment applications

2019 ◽  
Vol 14 (3) ◽  
pp. 1
Author(s):  
Rosangela Bergamasco ◽  
Priscila Ferri Coldebella ◽  
Franciele Pereira Camacho ◽  
Driano Rezende ◽  
Natalia Ueda Yamaguchi ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Self Assembly ◽  
Photocatalytic Performance ◽  
Titanium Dioxide Nanoparticles ◽  
Photocatalytic Decomposition ◽  
High Permeability ◽  
Physical Separation ◽  
Assembly Method ◽  
Wastewater Systems ◽  
Polyamide Membrane

This study modified the surface of a commercial polyamide membrane with the deposition of TiO2 nanoparticles by the self-assembly method under pressure with high permeability and photocatalytic activity. Changes in membrane characteristics and its performance for photocatalytic properties were evaluated. The results indicated that both membrane hydrophilicity and photocatalytic performance were significantly improved by the presence of TiO2 nanoparticles applied under a pressure of 1 bar. The deposition of the TiO2 particles under pressure was able to maintain the particles on the surface of the membranes and their photocatalytic capacity for three cycles of use. The prepared TiO2 photocatalytic membrane presented a great potential for wastewater treatment and for reuse wastewater systems due its ability to remove methylene blue (MB) dye solution by photocatalytic decomposition and physical separation.

A wearable and highly sensitive strain sensor based on a polyethylenimine–rGO layered nanocomposite thin film

2017 ◽  
Vol 5 (31) ◽  
pp. 7746-7752 ◽  
Author(s):  
Xueliang Ye ◽  
Zhen Yuan ◽  
Huiling Tai ◽  
Weizhi Li ◽  
Xiaosong Du ◽  
...  
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Strain Sensor ◽  
Layer By Layer ◽  
Nanocomposite Thin Film ◽  
Assembly Method ◽  
Reduced Graphene ◽  
Highly Sensitive

A novel strain sensor based on reduced graphene oxide with ultra-sensitive and ultra-durable performance was fabricated by the chemical layer-by-layer self-assembly method.

scholarly journals Facile synthesis of lignosulfonate-graphene porous hydrogel for effective removal of Cr(VI) from aqueous solution

BioResources ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. 7001-7014
Author(s):  
Zhili Zhang ◽  
Fengfeng Li ◽  
Xingxiang Ji ◽  
Jiachuan Chen ◽  
Guihua Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
Free Standing ◽  
Environmental Friendliness ◽  
Surface Areas ◽  
Assembly Method ◽  
Effective Removal ◽  
The Cost ◽  
Adsorption Desorption ◽  
Porous Hydrogel

A green and facile fabrication strategy for synthesis of lignosulfonate-graphene porous hydrogel (LGPH) was designed via incorporation of lignosulfonate (LS) into graphene oxide (GO). This process was achieved by a simple self-assembly method at low temperature, with LS serving as surface functionalization agent. Benefiting from the abundant functional groups of LS and the large surface areas of graphene oxide, the prepared LGPH hydrogel displayed 3D interconnected pores and exhibited an excellent adsorption capacity for Cr(VI) (601.2 mg/g) ions dissolved in water. Importantly, the free-standing LGPH was easily separated from water after the adsorption process, and the adsorption capacities of Cr(VI) onto LGPH maintained 439.1 mg/g after 5 adsorption-desorption cycles. The cost-effectiveness and environmental friendliness of LGPH make it a promising material for removing heavy metals from wastewater.

scholarly journals Improving the Wear Life of a-C:H Film in High Vacuum by Self-Assembled Reduced Graphene Oxide Layers

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1733 ◽  
Author(s):  
Hui Song ◽  
Gang Chen ◽  
Jie Chen ◽  
Hongxuan Li ◽  
Li Ji ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
High Vacuum ◽  
Carbon Film ◽  
Friction Reduction ◽  
Friction Behavior ◽  
Assembly Method ◽  
Reduced Graphene ◽  
Self Assembled

As an energy-efficient surface modification method, self-assembly has been the subject of extensive research. However, its application on carbon film has been rarely reported. In the present work, a novel self-assembled reduced graphene oxide (RGO) was prepared on a-C:H film by a controllable self-assembly method, and the friction behavior of the RGO/a-C:H film was investigated under vacuum environment. Interestingly, the RGO/a-C:H film exhibited significant improvement of anti-wear ability in vacuum conditions under a high applied load of 5 N. As expected, the synergy lubrication effect of the RGO layer and a-C:H film should account for the excellent friction reduction and anti-wear ability of a RGO/a-C:H multilayer film.

General Self-Assembly Method for Deposition of Graphene Oxide into Uniform Close-Packed Monolayer Films

Langmuir ◽  
2019 ◽  
Vol 35 (13) ◽  
pp. 4460-4470 ◽  
Author(s):  
Alexander Holm ◽  
Larissa Kunz ◽  
Andrew R. Riscoe ◽  
Kun-Che Kao ◽  
Matteo Cargnello ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
Monolayer Films ◽  
Assembly Method

The assembly and photoelectronic property of reduced graphene oxide/porphyrin/phthalocyanine composite films

RSC Advances ◽  
2015 ◽  
Vol 5 (52) ◽  
pp. 42063-42068 ◽  
Author(s):  
Meijuan Zhang ◽  
Bing Yuan ◽  
Shi-zhao Kang ◽  
Lixia Qin ◽  
Guodong Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Composite Films ◽  
Layer By Layer ◽  
Assembly Method ◽  
Reduced Graphene ◽  
Porphyrin Phthalocyanine

By a layer-by-layer self-assembly method, reduced graphene oxide-based composite films with high photoelectronic activity were assembled with 5,10,15,20-tetrakis(p-N,N,N-trimethylanilinium)porphyrin and copper sulfophthalocyanine as the co-sensitizers.

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