DYE REMOVAL CAPACITY OF GRAPHENE OXIDE-IRON NANO PARTICLE COMPOSITE AS AN ADSORBENT

2018 ◽  
Author(s):  
Jyoti N. Thakre Sanjay R. Thakre P.T.Kosankar Kavita Gour Jyoti N. Thakre Sanjay R. Thakre P.T.Kosankar Kavita Gour ◽  
Keyword(s):  
Graphene Oxide ◽  
Dye Removal ◽  
Nano Particle ◽  
Particle Composite ◽  
Removal Capacity

3D Graphene Oxide Hydrogel Derived from Waste Toner as Adsorbent

2021 ◽  
Vol 21 (10) ◽  
pp. 5275-5281
Author(s):  
Zhengshan Tian ◽  
Lijuan Sun ◽  
Hao Tian ◽  
Kesheng Cao ◽  
Suzhen Bai ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Removal Efficiency ◽  
Raw Materials ◽  
Three Dimensions ◽  
One Pot ◽  
Adsorptive Property ◽  
3D Graphene ◽  
Hummers Method ◽  
Removal Capacity ◽  
Living Things

Waste toner powders are considered as hazardous materials to human and living things, and should be properly recycled by many effective ways due to their fine particle sizes and complex components. In this paper, waste toner powders were used as raw materials to successfully synthesize three dimensions (3D) graphene oxide (GO) hydrogel by means of a one-pot chemical transformation based on the improved Hummers’ method. The obtained 3D GO hydrogel has porous structure and abundant oxygen-containing functional groups because of the inherent 3D solid structure of waste toner powder and the strong oxidation process of the improved Hummers’ method. Interestingly, the as-prepared 3D GO hydrogel with excellent adsorptive property could quickly remove Pb(II) ions (100 mg/L, removal efficiency of 96% and removal capacity of 144 mg/g) and methylene blue (50 mg/L, removal efficiency of 97% and removal capacity of 48 mg/g) from water, respectively. The preparation process of 3D GO hydrogel was simple and easy to operate, and the output can be moderately mass produced, thus it would provide a new and effective disposal way for the recycling and reusing of waste toner.

scholarly journals Optimisation of durian peel based activated carbon preparation conditions for dye removal

2013 ◽  
Vol 16 (1) ◽  
pp. 22-31
Author(s):  
Phung Thi Kim Le ◽  
Kien Anh Le
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Surface Area ◽  
Dye Removal ◽  
Activated Carbons ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Impregnation Ratio ◽  
Carbon Production ◽  
Removal Capacity

Agricultural wastes are considered to be a very important feedstock for activated carbon production as they are renewable sources and low cost materials. This study present the optimize conditions for preparation of durian peel activated carbon (DPAC) for removal of methylene blue (MB) from synthetic effluents. The effects of carbonization temperature (from 673K to 923K) and impregnation ratio (from 0.2 to 1.0) with potassium hydroxide KOH on the yield, surface area and the dye adsorbed capacity of the activated carbons were investigated. The dye removal capacity was evaluated with methylene blue. In comparison with the commercial grade carbons, the activated carbons from durian peel showed considerably higher surface area especially in the suitable temperate and impregnation ratio of activated carbon production. Methylene blue removal capacity appeared to be comparable to commercial products; it shows the potential of durian peel as a biomass source to produce adsorbents for waste water treatment and other application. Optimize condition for preparation of DPAC determined by using response surface methodology was at temperature 760 K and IR 1.0 which resulted the yield (51%), surface area (786 m2/g), and MB removal (172 mg/g).

scholarly journals A Sm-MOF/GO nanocomposite membrane for efficient organic dye removal from wastewater

RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8540-8547 ◽  
Author(s):  
Guohai Yang ◽  
Daqing Zhang ◽  
Gen Zhu ◽  
Tingrong Zhou ◽  
Manting Song ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Dye Removal ◽  
Metal Organic Frameworks ◽  
Organic Dye ◽  
Nanocomposite Membrane ◽  
Graphene Oxide Nanosheets ◽  
Metal Organic

A nanocomposite membrane composed of samarium metal-organic frameworks and graphene oxide nanosheets was fabricated for organic dye removal.

scholarly journals Ultralight aerogel based on molecular-modified poly(m-phenylenediamine) crosslinking with polyvinyl alcohol/graphene oxide for flow adsorption

RSC Advances ◽  
2019 ◽  
Vol 9 (40) ◽  
pp. 22950-22956
Author(s):  
Yao Chen ◽  
Liang Yang ◽  
Shihao Xu ◽  
Shuai Han ◽  
Suyun Chu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Polyvinyl Alcohol ◽  
Dye Removal

An aerogel composed of molecular-modified poly(m-phenylenediamine), polyvinyl alcohol and graphene oxide for Ag(i) recovery and dye removal is demonstrated.

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