Sulfonated graphene oxide as an adsorbent for removal of Pb2+ and methylene blue

Wei, Mao-ping; Chai, Hui; Cao, Yali; Jia, Dianzeng

doi:10.1016/j.jcis.2018.03.094

Cited by 154 publications

(55 citation statements)

References 52 publications

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“…The strong attraction between GO and Cu(II) metal cations led to the rapid increase of adsorption efficiency at the initial stage (10-45 min). 51 Aer 90 minutes, the adsorption rate tended to be at and nally reached equilibrium for all initial concentration conditions at approximately 120 minutes. When the concentration was 5-20 mg L À1 , the efficiency was substantially over 90% aer 120 min.…”

Section: Contour and Three-dimensional Diagrams For The Effects Of Admentioning

confidence: 92%

Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network

et al. 2019

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Section: Contour and Three-dimensional Diagrams For The Effects Of Admentioning

confidence: 92%

Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network

et al. 2019

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“…Table 9 summarized the adsorption capacity, kinetics and experimental conditions for the adsorption of several important and toxic metals using GO and GO-based composites. All studies followed the pseudo second order kinetic model except PAA-MGA in the removal of selenium, which followed Intra-Particle Diffusion model [81]. These metals include radioactive materials.…”

Section: Copper Removalmentioning

confidence: 99%

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

2020

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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.

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“…SMP contains abundant phenyl groups and oxygen-containing functional groups, such as –OH and –SO 3 − , which have been demonstrated to be efficient adsorption sites. For example, Wei et al have prepared a sulfonic-functionalized graphene oxide via a temperate and easily handled method, this material showed a high adsorption behavior for heavy metal ions and dyes [12].…”

Section: Introductionmentioning

confidence: 99%

Novel Polymer Material for Efficiently Removing Methylene Blue, Cu(II) and Emulsified Oil Droplets from Water Simultaneously

et al. 2018

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The pollution of water resources has become a worldwide concern. The primary pollutants including insoluble oil, toxic dyes, and heavy metal ions. Herein, we report a polymer adsorbent, named SPCT, to remove the above three contaminants from water simultaneously. The preparation process of SPCT contains two steps. Firstly, a hydrogel composed of sulfonated phenolic resin (SMP) and polyethyleneimine (PEI) was synthesized using glutaraldehyde (GA) as the crosslinking agent, and the product was named SPG. Then SPCT was prepared by the reaction between SPG and citric acid (CA) at 170 ∘ C. SPCT exhibited an excellent performance for the removal of methylene blue (MB) and Cu(II) from aqueous solution. For a solution with a pollutant concentration of 50 mg L−1, a removal efficiency of above 90% could be obtained with a SPCT dosage of 0.2 g L−1 for MB, or a SPCT dosage of 0.5 g L−1 for Cu(II), respectively. SPCT also presented an interesting wettability. In air, it was both superhydrophilic and superoleophilic, and it was superoleophobic underwater. Therefore, SPCT could successfully separate oil-in-water emulsion with high separation efficiency and resistance to oil fouling. Additionally, SPCT was easily regenerated by using dilute HCl solution as an eluent. The outstanding performance of SPCT and the efficient, cost-effective preparation process highlight its potential for practical applications.

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Sulfonated graphene oxide as an adsorbent for removal of Pb2+ and methylene blue

Cited by 154 publications

References 52 publications

Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network

Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network

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

Novel Polymer Material for Efficiently Removing Methylene Blue, Cu(II) and Emulsified Oil Droplets from Water Simultaneously

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