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Graphene from sugar and its application in water purification
Soujit Sen Gupta, , Gupta S.S, , Sreeprasad T.S, Maliyekkal S.M, Das S.K, Pradeep T.
Published in
2012
PMID: 22788773
Volume: 4
   
Issue: 8
Pages: 4156 - 4163
Abstract
This paper describes a green method for the synthesis of graphenic material from cane sugar, a common disaccharide. A suitable methodology was introduced to immobilize this material on sand without the need of any binder, resulting in a composite, referred to as graphene sand composite (GSC). Raman spectroscopy confirmed that the material is indeed graphenic in nature, having G and D bands at 1597 and 1338 cm -1, respectively. It effectively removes contaminants from water. Here, we use rhodamine 6G (R6G) as a model dye and chloropyrifos (CP) as a model pesticide to demonstrate this application. The spectroscopic and microscopic analyses coupled with adsorption experiments revealed that physical adsorption plays a dominant role in the adsorption process. Isotherm data in batch experiments show an adsorption capacity of 55 mg/g for R6G and 48 mg/g for CP, which are superior to that of activated carbon. The adsorbent can be easily regenerated using a suitable eluent. This quick and cost-effective technique for the into a commercial water filter with appropriate engineering. © 2012 American Chemical Society.
About the journal
JournalACS Applied Materials and Interfaces
ISSN19448244
Open AccessNo
Concepts (57)
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    Adsorption capacities
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    ADSORPTION EXPERIMENT
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    Adsorption process
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    BATCH EXPERIMENTS
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    CHLOROPYRIFOS
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    Environmental remediation
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    Grapheme
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    GREEN METHOD
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    ISOTHERM DATA
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    Microscopic analysis
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    PHYSICAL ADSORPTION
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    Rhodamine 6g
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    WATER FILTERS
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    Water purification
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    Activated carbon
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    Composite materials
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    Experiments
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    Graphene
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    Nanotechnology
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    Raman spectroscopy
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    SUGAR INDUSTRY
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    WATER FILTRATION
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    Water supply
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    Water treatment plants
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    Adsorption
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    Carbohydrate
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    Coloring agent
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    Disaccharide
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    Graphite
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    Pesticide
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    Rhodamine
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    Sulfuric acid
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    Water
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    Article
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    Chemical model
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    Chemistry
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    Kinetics
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    Mass spectrometry
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    Methodology
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    Raman spectrometry
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    Scanning electron microscopy
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    Time
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    Ultraviolet spectrophotometry
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    Water management
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    Water pollutant
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    Carbohydrates
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    Coloring agents
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    Disaccharides
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    Microscopy, electron, scanning
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    Models, chemical
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    Pesticides
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    Rhodamines
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    Spectrophotometry, ultraviolet
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    Spectrum analysis, raman
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    SULFURIC ACIDS
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    Time factors
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    Water pollutants, chemical