Journal ArticleDOI
Highly enhanced adsorption of congo red onto graphene oxide/chitosan fibers by wet-chemical etching off silica nanoparticles
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TLDR
Graphene oxide/chitosan/silica fibers were prepared by a wet spinning technique as discussed by the authors, and the results indicated that the equilibrium data were perfectly represented by the Langmuir isotherm.About:
This article is published in Chemical Engineering Journal.The article was published on 2014-06-01. It has received 264 citations till now. The article focuses on the topics: Freundlich equation & Graphene.read more
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The role of nanomaterials as effective adsorbents and their applications in wastewater treatment
Hamidreza Sadegh,Gomaa A. M. Ali,Gomaa A. M. Ali,Vinod Kumar Gupta,Abdel Salam Hamdy Makhlouf,Ramin Shahryari-ghoshekandi,Mallikarjuna N. Nadagouda,Mika Sillanpää,Mika Sillanpää,Elżbieta Megiel +9 more
TL;DR: In this paper, the role of nanomaterials as effective adsorbents for wastewater purification is discussed and the challenges of cost-effective and environmentally acceptable nanOMaterials for water purification are discussed and reviewed.
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Graphene supported heterogeneous catalysts: An overview
TL;DR: In this article, the advantages and limitations of carbon materials as catalyst support materials, addresses recent progress on synthesis routes with technological advances in the characterization of graphene, and follows the properties dependent of graphene as a superior catalyst support material.
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One-Step Fabrication of Graphene Oxide Enhanced Magnetic Composite Gel for Highly Efficient Dye Adsorption and Catalysis
TL;DR: In this paper, a simple one-step approach to fabricate magnetic GO/polyvinyl alcohol (PVA) composite gels (mGO/PVA CGs) was demonstrated.
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High performance agar/graphene oxide composite aerogel for methylene blue removal
TL;DR: A novel three-dimensional (3D) agar/graphene oxide (AGO) composite aerogel was prepared by a vacuum freeze drying method and kinetic studies revealed that adsorption followed pseudo-second-order model.
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Applications of graphene and its derivatives as an adsorbent for heavy metal and dye removal: a systematic and comprehensive overview
Mohammed Yusuf,Fawzi M. Elfghi,Fawzi M. Elfghi,Shabi Abbas Zaidi,Ezzat Chan Abdullah,Ezzat Chan Abdullah,Moonis Ali Khan +6 more
TL;DR: In this paper, the use of graphene and its derivatives as an adsorbent for dye and heavy metal ion removal from aqueous phase is discussed, and a historical overview, synthesis methodologies, structural characteristics, toxicity issues, and the applications of GAs for removing heavy metal ions from water bodies along with its adsorption mechanisms are comprehensively discussed.
References
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The adsorption of gases on plane surfaces of glass, mica and platinum.
TL;DR: In this article, the absorption index at the wave length of the band maximum was found to be proportional to the total concentration of metal at shorter wave lengths, however, deviations were observed, the absorption increasing more rapidly with concentration than Beers' law would demand.
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Carbon-based Supercapacitors Produced by Activation of Graphene
Yanwu Zhu,Shanthi Murali,Meryl D. Stoller,K. J. Ganesh,Weiwei Cai,Paulo J. Ferreira,Adam Pirkle,Robert M. Wallace,Katie A. Cychosz,Matthias Thommes,Dong Su,Eric A. Stach,Rodney S. Ruoff +12 more
TL;DR: This work synthesized a porous carbon with a Brunauer-Emmett-Teller surface area, a high electrical conductivity, and a low oxygen and hydrogen content that has high values of gravimetric capacitance and energy density with organic and ionic liquid electrolytes.
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Direct observation of a widely tunable bandgap in bilayer graphene
Yuanbo Zhang,Tsung-Ta Tang,Tsung-Ta Tang,Caglar Girit,Zhao Hao,Michael C. Martin,Alex Zettl,Alex Zettl,Michael F. Crommie,Michael F. Crommie,Y. Ron Shen,Y. Ron Shen,Feng Wang,Feng Wang +13 more
TL;DR: This work demonstrates a gate-controlled, continuously tunable bandgap of up to 250 meV and suggests novel nanoelectronic and nanophotonic device applications based on graphene that have eluded previous attempts.
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Chitosan as Antimicrobial Agent: Applications and Mode of Action
TL;DR: The current review of 129 references describes the biological activity of several chitosan derivatives and the modes of action that have been postulated in the literature.