scholarly journals Highly effective and reusable sulfonated pentablock copolymer nanocomposites for water purification applications

RSC Advances ◽  
2017 ◽  
Vol 7 (72) ◽  
pp. 45521-45534 ◽  
Author(s):  
S. Filice ◽  
D. D'Angelo ◽  
A. Scarangella ◽  
D. Iannazzo ◽  
G. Compagnini ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Water Purification ◽  
Highly Effective ◽  
Pentablock Copolymer

Sulfonated pentablock copolymer nanocomposites loaded with TiO2 or graphene oxide show their effectiveness in water purification applications.

Printing ultrathin graphene oxide nanofiltration membranes for water purification

2017 ◽  
Vol 5 (39) ◽  
pp. 20860-20866 ◽  
Author(s):  
Mahdi Fathizadeh ◽  
Huynh Ngoc Tien ◽  
Konstantin Khivantsev ◽  
Jung-Tsai Chen ◽  
Miao Yu
Keyword(s):  
Graphene Oxide ◽  
Water Purification ◽  
Inkjet Printing ◽  
Low Cost ◽  
Nanofiltration Membranes ◽  
Highly Effective ◽  
First Time ◽  
Polymeric Supports ◽  
Effective Water

We demonstrated for the first time that inkjet printing can be a low-cost, easy, fast, and scalable method for depositing ultrathin (7.5–60 nm) uniform graphene oxide (GO) nanofiltration membranes on polymeric supports for highly effective water purification.

Green synthesis of oriented xanthan gum–graphene oxide hybrid aerogels for water purification

2017 ◽  
Vol 174 ◽  
pp. 392-399 ◽  
Author(s):  
Shunli Liu ◽  
Fang Yao ◽  
Olayinka Oderinde ◽  
Zhihong Zhang ◽  
Guodong Fu
Keyword(s):  
Graphene Oxide ◽  
Green Synthesis ◽  
Water Purification ◽  
Xanthan Gum ◽  
Hybrid Aerogels

scholarly journals A short review of titania-graphene oxide based composites as a photocatalysts

2021 ◽  
Vol 10 (2) ◽  
pp. 51-60
Author(s):  
Katarina Stepić ◽  
Radomir Ljupković ◽  
Jovana Ickovski ◽  
Aleksandra Zarubica
Keyword(s):  
Graphene Oxide ◽  
Water Purification ◽  
Organic Contaminants ◽  
Environmental Pollutants ◽  
Short Review ◽  
Sorption Process ◽  
Water Disinfection ◽  
Co Catalysts ◽  
Photocatalytic Reactions ◽  
Chemical Wastes

New and effective methods of water purification are necessary to minimize pollution. Many methods have been used in wastewater treatment, but sorption is considered as an easy and economic process. The efficiency of any sorption process mainly depends on the physicochemical properties of the used adsorbent. Since photocatalysts can initiate reactions of decomposition organic contaminants under ultraviolet or sunlight irradiation without using chemicals or producing chemical wastes, photocatalytic reactions are considered a sustainable way to remove a variety of environmental pollutants. Ultraviolet water purification became the most effective method of water disinfection and purification. Heterogeneous semiconductor photocatalysts have recently emerged as an efficient material for purifying water. The crystal structure is crucial for photocatalytic activity and efficiency of semiconductors, thus optimal parameters must be provided during the preparation of photocatalysts. To overcome problems with semiconductors usage, the use of co-catalysts and photocatalyst carriers is one of the solutions. Recently, much emphasis has been placed on using graphene oxide (GO) supported semiconductor photocatalysts. In this paper, a short review of composites of titanium dioxide and graphene oxide-based materials is given.

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.

Fabrication of a phosphorylated graphene oxide–chitosan composite for highly effective and selective capture of U(vi)

2017 ◽  
Vol 4 (9) ◽  
pp. 1876-1886 ◽  
Author(s):  
Yawen Cai ◽  
Chunfang Wu ◽  
Zhiyong Liu ◽  
Linjuan Zhang ◽  
Lanhua Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Sorption Capacity ◽  
High Sorption Capacity ◽  
Highly Effective ◽  
High Sorption ◽  
Chitosan Composite

The synthesized GO–CS–P exhibits ultrafast removal kinetics, high sorption capacity and great selectivity towards U(vi).

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