A review of recent developments in graphene-enabled membranes for water treatment

2016 ◽  
Vol 2 (6) ◽  
pp. 915-922 ◽  
Author(s):  
Yi Jiang ◽  
Pratim Biswas ◽  
John D. Fortner
Keyword(s):  
Graphene Oxide ◽  
Water Treatment ◽  
Next Generation ◽  
Considerable Potential ◽  
Recent Developments ◽  
Membrane Technologies

Graphene based materials, including graphene and derivatives such as graphene oxide, have considerable potential as key components in next-generation membrane technologies.

Graphene Oxide and Its Derivatives: Their Synthesis and Use in Organic Synthesis

2019 ◽  
Vol 23 (2) ◽  
pp. 188-204 ◽  
Author(s):  
Xiangjun Peng ◽  
Xianyun Xu ◽  
Fujiang Huang ◽  
Qian Liu ◽  
Liangxian Liu
Keyword(s):  
Graphene Oxide ◽  
Carbon Materials ◽  
Device Fabrication ◽  
Organic Reactions ◽  
Bond Forming ◽  
Bond Forming Reactions ◽  
Modern Physics ◽  
Recent Developments ◽  
Optical And Mechanical Properties ◽  
Nitrogen Double Bond

Since Geim and co-workers reported their groundbreaking experiments on graphene, research on graphene oxide (GO) and its derivatives has greatly influenced the field of modern physics, chemistry, device fabrication, material science, and nanotechnology. The unique structure and fascinating properties of these carbon materials can be ascribed to their eminent chemical, electronic, electrochemical, optical, and mechanical properties of GO and its derivatives, particularly compared to other carbon allotropes. The present Review aims to provide an overview on the recent developments in the preparation of GO and its derivatives and their applications in organic reactions. We will first outline the synthesis of GO and its derivatives. Then, we will discuss the major sections about their application as stoichiometric and catalytic oxidants in organic reactions, a particular emphasis on the carbon-carbon, carbon-oxygen, and carbon-nitrogen single bond-forming reactions, as well as carbon-oxygen and carbon-nitrogen double bond-forming reactions. Simultaneously, this Review also describes briefly transition metal supported on GO or its derivatives as a catalyst for organic reaction. Lastly, we will present an outlook of potential areas where GO and its derivatives may be expected to find utility or opportunity for further growth and study.

scholarly journals Magnetic iron oxide/clay nanocomposites for adsorption and catalytic oxidation in water treatment applications

2020 ◽  
Vol 18 (1) ◽  
pp. 1148-1166
Author(s):  
Ganjar Fadillah ◽  
Septian Perwira Yudha ◽  
Suresh Sagadevan ◽  
Is Fatimah ◽  
Oki Muraza
Keyword(s):  
Iron Oxide ◽  
Water Treatment ◽  
Photocatalytic Oxidation ◽  
Low Cost ◽  
Synthesis Method ◽  
Chemical Oxidation ◽  
Magnetic Iron Oxide ◽  
Oxidation Processes ◽  
Recent Developments ◽  
Physical And Chemical

AbstractPhysical and chemical methods have been developed for water and wastewater treatments. Adsorption is an attractive method due to its simplicity and low cost, and it has been widely employed in industrial treatment. In advanced schemes, chemical oxidation and photocatalytic oxidation have been recognized as effective methods for wastewater-containing organic compounds. The use of magnetic iron oxide in these methods has received much attention. Magnetic iron oxide nanocomposite adsorbents have been recognized as favorable materials due to their stability, high adsorption capacities, and recoverability, compared to conventional sorbents. Magnetic iron oxide nanocomposites have also been reported to be effective in photocatalytic and chemical oxidation processes. The current review has presented recent developments in techniques using magnetic iron oxide nanocomposites for water treatment applications. The review highlights the synthesis method and compares modifications for adsorbent, photocatalytic oxidation, and chemical oxidation processes. Future prospects for the use of nanocomposites have been presented.

Advances in magnetic films of epsilon-iron oxide toward next-generation high-density recording media

2021 ◽  
Author(s):  
Hiroko Tokoro ◽  
Asuka Namai ◽  
Shin-ichi Ohkoshi
Keyword(s):  
Iron Oxide ◽  
Magnetic Films ◽  
High Density ◽  
Recording Media ◽  
Next Generation ◽  
Magnetic Recording Media ◽  
Film Performance ◽  
High Density Recording ◽  
Recent Developments ◽  
High Density Magnetic Recording

Recent developments in magnetic films composed of epsilon-iron oxide are introduced. The film performance is studied and improved toward the next-generation of high-density magnetic recording media.

scholarly journals Hypercrosslinked porous polymers hybridized with graphene oxide for water treatment: dye adsorption and degradation

RSC Advances ◽  
2018 ◽  
Vol 8 (24) ◽  
pp. 13417-13422 ◽  
Author(s):  
Yipeng Huang ◽  
Guihua Ruan ◽  
Yuji Ruan ◽  
Wenjuan Zhang ◽  
Xianxian Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Water Treatment ◽  
Dye Adsorption ◽  
Porous Polymers ◽  
Internal Phase

We report the synthesis of graphene oxide hybridized polymeric high internal phase emulsions and their applications in adsorption and photocatalysis.

scholarly journals Modification of polypropylene filter with metal oxide and reduced graphene oxide for water treatment

2014 ◽  
Vol 40 (5) ◽  
pp. 6927-6936 ◽  
Author(s):  
S.N. Ariffin ◽  
H.N. Lim ◽  
F.A. Jumeri ◽  
M. Zobir ◽  
A.H. Abdullah ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Water Treatment ◽  
Metal Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene

A multifunctional bi-phasic graphene oxide/chitosan paper for water treatment

2020 ◽  
Vol 235 ◽  
pp. 116181 ◽  
Author(s):  
Diego Cortinez ◽  
Patricia Palma ◽  
René Castro ◽  
Humberto Palza
Keyword(s):  
Graphene Oxide ◽  
Water Treatment

scholarly journals Nanomaterials Based Drinking Water Purification: Comparative Study with a Conventional Water Purification Process

2018 ◽  
Vol 63 (1) ◽  
pp. 96-112 ◽  
Author(s):  
Barış Şimşek ◽  
İnci Sevgili ◽  
Özge Bildi Ceran ◽  
Haluk Korucu ◽  
Osman Nuri Şara
Keyword(s):  
Silver Nanoparticles ◽  
Drinking Water ◽  
Graphene Oxide ◽  
Water Treatment ◽  
Water Purification ◽  
Drinking Water Treatment ◽  
Treatment Method ◽  
Salmonella Typhi ◽  
Liquid Ratio ◽  
Solid Liquid

One of the ways of fully securing the presence of fresh water is water treatment process. Nanomaterials and nanotechnology offers an innovative solution for water treatment. In this study, physical, chemical and microbiological improvement rates of raw water were analyzed after filtration with graphene oxide. Graphene oxide's water treatment performance; silver nanoparticles, silver nanoparticles & graphene oxide composites that are commonly used in water treatment were compared with a traditional treatment method. When compared to the traditional method, there were improvements of 50 %, 40.7 %, 86.8 % and 45.5 % for color, TIC, TOC and hardness properties, respectively in water treatment by GO-based filtration with solid liquid ratio of 0.7 % (v/v). In water treatment with GO-Ag based filtration, 39.8 %, 69.8 %, 10.3 % and 28.6 % of improvements were obtained for TIC, TOC, hardness and LSI value compared to the conventional method. Both GO at 0.7 % (v/v) solid-liquid ratio and GO-Ag nanocomposites were successful in the number of total viable microorganisms and inhibiting microorganisms such as Escherichia coli fecal (gaita-infected), Salmonella typhi, Enterococcus faecalis, Pseudomona aeruginosa and Staphylococcus aureus. Among the studied parameters GO-Ag nanocomposites found to be the most suitable for drinking water treatment.

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