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

Mahto, Ashesh; Kumar, Anshu; Chaudhary, Jai Prakash; Bhatt, Madhuri; Sharma, Atul Kumar; Paul, Parimal; Nataraj, Sanna Kotrappanavar; Meena, Ramavatar

doi:10.1016/j.jhazmat.2018.03.054

Cited by 41 publications

(13 citation statements)

References 85 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the first step, graphene oxide is prepared from graphite through modified Hummer's method like in most cases and diaminopyridine is then added in the presence of H2SO4 which introduces more active sites on the surface of the adsorbents [37]. Ultrasonication was a popular synthesis route with organic graphene composites with competitive results [38,80,141]. Nevertheless, the most common synthesis route is hydrothermal.…”

Section: Chromium Removalmentioning

confidence: 99%

Recent Advances in Applications of Hybrid Graphene Materials for Metals Removal from Wastewater

2020

View full text Add to dashboard Cite

The presence of traces of heavy metals in wastewater causes adverse health effects on humans and the ecosystem. Adsorption is a low cost and eco-friendly method for the removal of low concentrations of heavy metals from wastewater streams. Over the past several years, graphene-based materials have been researched as exceptional adsorbents. In this review, the applications of graphene oxide (GO), reduce graphene oxide (rGO), and graphene-based nanocomposites (GNCs) for the removal of various metals are analyzed. Firstly, the common synthesis routes for GO, rGO, and GNCs are discussed. Secondly, the available literature on the adsorption of heavy metals including arsenic, lead, cadmium, nickel, mercury, chromium and copper using graphene-based materials are reviewed and analyzed. The adsorption isotherms, kinetics, capacity, and removal efficiency for each metal on different graphene materials, as well as the effects of the synthesis method and the adsorption process conditions on the recyclability of the graphene materials, are discussed. Finally, future perspectives and trends in the field are also highlighted.

show abstract

Section: Chromium Removalmentioning

confidence: 99%

Recent Advances in Applications of Hybrid Graphene Materials for Metals Removal from Wastewater

2020

View full text Add to dashboard Cite

show abstract

“…63,64 Under pyrolytic conditions, these metals might form different compounds depending on the availability of counteranion and reaction environment. 65 Presence of amorphous carbon matrix with only a trace amounts of these metallic compounds makes their detection by powder XRD analysis difficult. This is mainly due to the absence of longrange order resulting in diffused XRD peaks.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…There have been numerous reports on metal accumulation in marine macroalgae. , Relevant to the current research work, few studies had been conducted to quantify the presence of trace metals in U. fasciata seaweed collected from Gujarat coastline in India. In two independent studies, Parekh et al and Kumar et al have confirmed the presence of transition metals, viz., Fe, Zn, Cu, and Mn, and alkaline earth metals, viz., Ca and Mg, in U. fasciata seaweed. , Under pyrolytic conditions, these metals might form different compounds depending on the availability of counteranion and reaction environment . Presence of amorphous carbon matrix with only a trace amounts of these metallic compounds makes their detection by powder XRD analysis difficult.…”

Section: Results and Discussionmentioning

confidence: 99%

Self-Doped Interwoven Carbon Network Derived from Ulva fasciata for All-Solid Supercapacitor Devices: Solvent-Free Approach to a Scalable Synthetic Route

Chaudhary

Gupta²,

Mahto

et al. 2018

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

The surging growth of portable and wearable electronics along with increasing demand for electric vehicles has led to an exponential increase in the demand for lightweight, robust power sources with high energy and power density. Here, we demonstrate a single-step conversion process of seaweed Ulva fasciata to interconnected nanoporous carbon. Pyrolysis of marine origin green biomass resulted in inherently heteroatomdoped electrochemically active graphene nanocomposite. The present study outlines a simple and easily scalable electrode material production which resulted in a relatively high and stable specific capacitance through a double-layer charge-storage mechanism. Temperature-dependent morphology and texture variation was observed for the pyrolyzed samples, with best synergy between physical properties and application achieved at 800°C (UF-800). The physical characteristics of electrode material highlights high electrical conductivities of ∼9100mS/m and BET surface area of >376 m 2 / g. An all-solid supercapacitor device using H 3 PO 4 −PVA film as separator-cum-electrolyte and UF-800 as electroactive material exhibited high gravimetric capacitance of >330 F/g with a power density of 10 kW/kg. Furthermore, the symmetrical two electrode supercapacitor demonstrate ideal electrical double layer capacitive behavior stable up to 5000 cycles (97.5% capacitance retention). A high capacitance of ∼200 F/g at 5 A/g with a nominal loss of 2.5% in gravimetric capacitance reflects the cohesiveness of high electrical conductivity of the composite walls and the micro-and nanopores created during pyrolysis.

show abstract

“…Apart from electrostatic interaction, OÁ Á ÁO chalcogen-chalcogen interaction, C HÁ Á ÁO, O HÁ Á ÁO of hydrogen bonding, NH-pi stacking, hydrophobic interaction, conformation, and heterogeneity of the dyes may also play an active role in dye adsorption phenomena (Figure 1(b)). [49][50][51] Among the all selected cationic, anionic, and neutral dyes, the AB have many reactive sites to bind with the prepared multifunctional beads due to these it shows highly removal efficiency (Figure 1(b)) and chose for the further study. Hence, the effect of the different parameters for dye adsorption and the kinetic were also studied using AB dye.…”

Section: Dyes Removal Efficiency Experimentsmentioning

confidence: 99%

Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Kholiya

Singh

Gosai

et al. 2021

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Agaraldehyde and chitosan (CHI) functional beads as dye adsorbent were prepared under aqueous medium under ambient temperature and used for removing seven dyes from aqueous solutions. The resulting porous CHI‐Aald (R‐Aald‐CHI) bio‐beads were characterized by X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscope. The dye removal efficiency was studied using seven dyes (amido black [AB], bromophenol blue, crystal violet, bismarck brown, cotton blue, methyl orange, methylene blue), but detail study was done on AB. AB adsorption was followed the Langmuir‐isotherm and pseudo‐second order kinetics. The effects of adsorption parameters were investigated, and maximum AB 1506 mg/g was adsorbed under the optimum conditions. The linear and nonlinear forms of Langmuir and Freundlich isotherms and two kinetic models pseudo‐first‐order and pseudo‐second‐order were studied. The results show that adsorption follow both isotherm model while for kinetics of adsorption follow pseudo‐second‐order. The results of this work showed that R‐Aald‐CHI was encouraging adsorbent to remove dyes from wastewater, especially AB.

show abstract

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

Cited by 41 publications

References 85 publications

Recent Advances in Applications of Hybrid Graphene Materials for Metals Removal from Wastewater

Recent Advances in Applications of Hybrid Graphene Materials for Metals Removal from Wastewater

Self-Doped Interwoven Carbon Network Derived from Ulva fasciata for All-Solid Supercapacitor Devices: Solvent-Free Approach to a Scalable Synthetic Route

Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Contact Info

Product

Resources

About