Solvent-free production of nano-FeS anchored graphene from Ulva fasciata: a scalable synthesis of super-adsorbent for lead, chromium and dyes

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dc.contributor.author Mahto, Ashesh
dc.contributor.author Kumar, Anshu
dc.contributor.author Chaudhary, Jai Prakash
dc.contributor.author Bhatt, Madhuri
dc.contributor.author Sharma, Atul Kumar
dc.contributor.author Paul, Parimal
dc.contributor.author Nataraj, Sanna Kotrappanavar
dc.contributor.author Meena, Ramavatar
dc.date.accessioned 2018-05-07T12:51:13Z
dc.date.available 2018-05-07T12:51:13Z
dc.date.issued 2018-07
dc.identifier.citation Mahto, Ashesh; Kumar, Anshu; Chaudhary, Jai Prakash; Bhatt, Madhuri; Sharma, Atul Kumar; Paul, Parimal; Nataraj, Sanna Kotrappanavar and Meena, Ramavatar, "Solvent-free production of nano-FeS anchored graphene from Ulva fasciata: a scalable synthesis of super-adsorbent for lead, chromium and dyes", Journal of Hazardous Materials, DOI: 10.1016/j.jhazmat.2018.03.054, vol. 353, pp. 190-203, Jul. 2018. en_US
dc.identifier.isbn 1873-3336
dc.identifier.issn 0304-3894
dc.identifier.uri http://dx.doi.org/10.1016/j.jhazmat.2018.03.054
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/3643
dc.description.abstract Here we demonstrate, a simple and solvent-free synthetic route for the production of FeS/Fe(0) functionalized graphene nanocomposite (G-Fe) via a one-step pyrolysis of seaweed biomass (Ulva fasciata). It is proposed that the natural abundance of both inorganic and organic sulfur in the seaweed induces the reduction of exfoliated graphitic sheets at elevated temperatures. FeCl3 was employed both as the iron precursor as well as the templating agent. Iron doping played a dual-faceted role of exfoliating as well as activating agent, producing composite with high adsorption capacity for Pb2+ (645 ± 10 mg/g), CR (970 mg/g), CV(909 mg/g), MO (664 mg/g), MB (402 mg/g) dyes and good recyclability (8 cycles). Pb2+ adsorption was irreversible even at low pH values and the spent composite (G-Fe-Pb) was utilized for efficient Cr(IV) removal (̴100 mg/g). The adsorption data followed the pseudo second order kinetics while the equilibrium data fitted perfectly into the Langmuir adsorption equation. Further, a thin layer of composite was deposited on a filter paper by vacuum filtration which was tested under continuous filtration mode for RB5 dye removal. Preliminary results highlight the potential of this composite to be used in pretreatment steps in hybrid membrane processes for filtration of complex wastewater feeds.
dc.description.statementofresponsibility by Ashesh Mahto, Anshu Kumar, Jai Prakash Chaudhary,Madhuri Bhatt, Atul Kumar Sharma,Parimal Paul, Sanna Kotrappanavar Nataraj and Ramavatar Meena
dc.format.extent vol. 353, pp. 190-203
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Graphene composite en_US
dc.subject Seaweed biomass en_US
dc.subject Dyes en_US
dc.subject Heavy metal en_US
dc.subject Wastewater en_US
dc.title Solvent-free production of nano-FeS anchored graphene from Ulva fasciata: a scalable synthesis of super-adsorbent for lead, chromium and dyes en_US
dc.type Article en_US
dc.relation.journal Journal of Hazardous Materials


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