Removal of Methyl Blue from Waste Water by Layered Double Oxide/Graphene Oxide/Carboxymethyl Cellulose Composite

2017 ◽  
Vol 6 (2) ◽  
pp. 114-118
Author(s):  
Daoda Zhu ◽  
Hongyu Liu ◽  
Cuiyun Liu ◽  
Shuge Peng ◽  
Bingli Pan ◽  
...  
Keyword(s):  
Waste Water ◽  
Graphene Oxide ◽  
Carboxymethyl Cellulose ◽  
Methyl Blue ◽  
Double Oxide ◽  
Cellulose Composite

scholarly journals Chitosan/Silver Nanoparticle/Graphene Oxide Nanocomposites with Multi-Drug Release, Antimicrobial, and Photothermal Conversion Functions

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2351
Author(s):  
Zheng Su ◽  
Daye Sun ◽  
Li Zhang ◽  
Miaomiao He ◽  
Yulin Jiang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Drug Release ◽  
Release Rate ◽  
Composite System ◽  
Methyl Blue ◽  
Burst Release ◽  
Fluorescein Sodium ◽  
Photothermal Conversion ◽  
Dual Drug

In this work, we designed and fabricated a multifunctional nanocomposite system that consists of chitosan, raspberry-like silver nanoparticles, and graphene oxide. The room temperature atmospheric pressure microplasma (RT-APM) process provides a rapid, facile, and environmentally-friendly method for introducing silver nanoparticles into the composite system. Our composite can achieve a pH controlled single and/or dual drug release. Under pH 7.4 for methyl blue loaded on chitosan, the drug release profile features a burst release during the first 10 h, followed by a more stabilized release of 70–80% after 40–50 h. For fluorescein sodium loaded on graphene oxide, the drug release only reached 45% towards the end of 240 h. When the composite acted as a dual drug release system, the interaction of fluorescein sodium and methyl blue slowed down the methyl blue release rate. Under pH 4, both single and dual drug systems showed a much higher release rate. In addition, our composite system demonstrated strong antibacterial abilities against E. coli and S. aureus, as well as an excellent photothermal conversion effect under irradiation of near infrared lasers. The photothermal conversion efficiency can be controlled by the laser power. These unique functionalities of our nanocomposite point to its potential application in multiple areas, such as multimodal therapeutics in healthcare, water treatment, and anti-microbials, among others.

Advances in Graphene for Adsorption of Heavy Metals in Wastewater

2012 ◽  
Vol 550-553 ◽  
pp. 2121-2124 ◽  
Author(s):  
Ling Ling Luo ◽  
Xing Xing Gu ◽  
Jun Wu ◽  
Shu Xian Zhong ◽  
Jian Rong Chen
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Aqueous Solution ◽  
Graphene Oxide ◽  
Physical Structure ◽  
High Specific Surface Area ◽  
Functionalized Graphene ◽  
Storage Material ◽  
Energy Storage Material ◽  
Material Composite

Graphene for its unique physical structure, excellent mechanical, electrical and physical properties has been widely applied in nanoelectronics, microelectronics, energy storage material, composite materials and so on. In recent years, many researchers found graphene have outstanding adsorption capacity of contaminants in aqueous solution due to its high specific surface area. This paper summarized the graphene, graphene oxide and functionalized graphene removing various heavy metals in waste water.

Conductive methyl blue-functionalized reduced graphene oxide with excellent stability and solubility in water

2011 ◽  
Vol 46 (12) ◽  
pp. 2353-2358 ◽  
Author(s):  
Xiang Cai ◽  
Shaozao Tan ◽  
Agui Xie ◽  
Minsong Lin ◽  
Yingliang Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Methyl Blue ◽  
Solubility In Water ◽  
Reduced Graphene ◽  
Excellent Stability
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