ArticleScientific reports2019
Adsorption mechanism of Cr(VI) onto GO/PAMAMs composites.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Amine-Functionalized Porous Copolymeric Microspheres for Efficient Chromium(VI) Removal: Synthesis and Characterization.Materials (Basel, Switzerland) · 2026Article
- Sustainable Congo red (CR) and hexavalent chromium [Cr(vi)] removal using graphene functionalized aminated lignin composite: mechanistic and reusability insights.RSC advances · 2026Article
- Nanoarchitectonics of Metal-Organic Framework and Nanocellulose Composites for Multifunctional Environmental Remediation.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- Urea-driven g-CRSC advances · 2024Article
- Highly efficient adsorption of congo red and methyl orange dyes using mesoporous α-MnScientific reports · 2024Article
- Preparation and characterization of Allium cepa extract coated biochar and adsorption performance for hexavalent chromium.Scientific reports · 2023Article
- Article
- Dynamic Adsorption Characteristics of Cr(VI) in Red-Mud Leachate onto a Red Clay Anti-Seepage Layer.Toxics · 2022Article
- Optimization and mechanisms of rapid adsorptive removal of chromium (VI) from wastewater using industrial waste derived nanoparticles.Scientific reports · 2022Article
- Study of the Preparation and Properties of Chrysin Binary Functional Monomer Molecularly Imprinted Polymers.Polymers · 2022Article
- Removal of Cr(VI) by biochar derived via co-pyrolysis of oily sludge and corn stalks.Scientific reports · 2022Article
- Adsorption and Removal of Mercury(II) by a Crosslinked Hyperbranched Polymer Modified via Sulfhydryl.ACS omega · 2022Article
- A Review: Adsorption and Removal of Heavy Metals Based on Polyamide-amines Composites.Frontiers in chemistry · 2022Review
- Three-dimensional (3D) polymer-metal-carbon framework for efficient removal of chemical and biological contaminants.Scientific reports · 2021Article
- Utilization of Tires Waste-Derived Magnetic-Activated Carbon for the Removal of Hexavalent Chromium from Wastewater.Materials (Basel, Switzerland) · 2020Article
- A systematic study of hexavalent chromium adsorption and removal from aqueous environments using chemically functionalized amorphous and mesoporous silica nanoparticles.Scientific reports · 2020Article
- Optimized synthesis of novel hydrogel for the adsorption of copper and cobalt ions in wastewater.RSC advances · 2019Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Graphene oxide/polyamidoamine dendrimers (GO/PAMAMs) composites were used to remove Cr(VI) from simulated effluents, the adsorption kinetics and thermodynamics of Cr(VI) onto GO/PAMAMs were systematically investigated. The results showed that the optimum pH value was 2.5, the removal percentage reached 90.7% for 30 mg/L of Cr(VI) within 120 min. The adsorption process was well described by pseudo-second-order kinetic model. The maximum adsorption capacities of Cr(VI) onto GO/PAMAMs were found to be 131.58, 183.82 and 211.42 mg/g at 293.15, 303.15 and 313.15 K, respectively, which were calculated from the Langmuir model equation. The adsorption thermodynamic parameters indicate that the adsorption of Cr(VI) onto GO/PAMAMs is a spontaneous endothermic process. The XPS analysis reveals the adsorption and removal mechanism of Cr(VI) on GO/PAMAMs that first the Cr(VI) binds to the protonated amine of GO/PAMAMs, then Cr(VI) be reduced to Cr(III) with the assistance of π-electrons on the carbocyclic six-membered ring of GO in GO/PAMAMs, and then Cr(III) was released into solution under the electrostatic repulsion between the Cr(III) and the protonated amine groups.
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Registered trials
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