Poly (amido amine) dendrimer based membranes for wastewater treatment – A critical review

Yasir, Ahmed T.; Benamor, Abdelbaki; Hawari, Alaa H.; Mahmoudi, Ebrahim

doi:10.1016/j.ces.2023.118665

Cited by 20 publications

(5 citation statements)

References 89 publications

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“…Dendrimers that radiate in a nearly perfect hyperbranched topology structure from a central core are highly monodisperse polymers and architecturally grown generation by generation, resulting in outermost functional groups linked by interior branches [18]. Poly(amidoamine) (PAMAM) dendrimers, the first dendrimer commercialized and explored most extensively, have found applications in drug delivery [19], gene therapy [20], and environmental pollution treatment [21]. PAMAM dendrimers stand out as a potential candidate for the treatment of radioactive wastewater due to the diverse possibilities of modification based on the NH 3 or COOCH 3 terminal characteristics and their excellent hydrophilic molecular building blocks [22,23].…”

Section: Introductionmentioning

confidence: 99%

A Phosphorylated Dendrimer-Supported Biomass-Derived Magnetic Nanoparticle Adsorbent for Efficient Uranium Removal

Ma,

Luo,

Han

et al. 2024

Nanomaterials

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A novel biomass-based magnetic nanoparticle (Fe3O4-P-CMC/PAMAM) was synthesized by crosslinking carboxymethyl chitosan (CMC) and poly(amidoamine) (PAMAM), followed by phosphorylation with the incorporation of magnetic ferric oxide nanoparticles. The characterization results verified the successful functionalization and structural integrity of the adsorbents with a surface area of ca. 43 m2/g. Batch adsorption experiments revealed that the adsorbent exhibited a maximum adsorption capacity of 1513.47 mg·g−1 for U(VI) at pH 5.5 and 298.15 K, with Fe3O4-P-CMC/G1.5-2 showing the highest affinity among the series. The adsorption kinetics adhered to a pseudo-second-order model (R2 = 0.99, qe,exp = 463.81 mg·g−1, k2 = 2.15×10−2 g·mg−1·min−1), indicating a chemically driven process. Thermodynamic analysis suggested that the adsorption was endothermic and spontaneous (ΔH° = 14.71 kJ·mol−1, ΔG° = −50.63 kJ·mol−1, 298. 15 K), with increasing adsorption capacity at higher temperatures. The adsorbent demonstrated significant selectivity for U(VI) in the presence of competing cations, with Fe3O4-P-CMC/G1.5-2 showing a high selectivity coefficient. The performed desorption and reusability tests indicated that the adsorbent could be effectively regenerated using 1M HCl, maintaining its adsorption capacity after five cycles. XPS analysis highlighted the role of phosphonate and amino groups in the complexation with uranyl ions, and validated the existence of bimodal U4f peaks at 380.1 eV and 390.1 eV belonging to U 4f7/2 and U 4f5/2. The results of this study underscore the promise of the developed adsorbent as an effective and selective material for the treatment of uranium-contaminated wastewater.

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Section: Introductionmentioning

confidence: 99%

A Phosphorylated Dendrimer-Supported Biomass-Derived Magnetic Nanoparticle Adsorbent for Efficient Uranium Removal

Ma,

Luo,

Han

et al. 2024

Nanomaterials

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“…So far, the application of GO-PAMAM nanocomposite has been limited to the formation of the polyamide active layer of RO membrane [29]. Thus, in this work, we aim to functionalize GO with PAMAM to form GO-PAMAM nanocomposite and incorporate it in a polysulfone membrane matrix.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Polysulfone Ultrafiltration Membrane with Third Generation Poly(Amido Amine)-Graphene Oxide Nanocomposite

Benamor

Yasir

Hawari

2023

Preprint

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“…Poly (amidoamine) (PAMAM) dendrimers are a kind of widely used macromolecular material with unique structural characteristics, including a regular three-dimensional structure, controllable molecule chains, extensive internal cavity and abundant functional terminal groups. Due to their special structure and properties, PAMAM dendrimers have been applied in various fields [ 23 , 24 , 25 ]. It is worth mentioning that the whole generation of PAMAM dendrimers are good candidates for post-functionalization of LMOFs [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Polyamidoamine Dendrimers Functionalized Water-Stable Metal–Organic Frameworks for Sensitive Fluorescent Detection of Heavy Metal Ions in Aqueous Solution

Guo,

Muhammad,

et al. 2023

Polymers

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In this work, polyamidoamine (PAMAM)-functionalized water-stable Al-based metal–organic frameworks (MIL-53(Al)-NH2) were proposed with enhanced fluorescence intensity, and used for the sensitive detection of heavy metal ions in aqueous solution. The size and morphology of MIL-53(Al)-NH2 were effectively optimized by regulating the component of the reaction solvents. PAMAM dendrimers were subsequently grafted onto the surface with glutaraldehyde as a cross-linking agent. It was found that the size and morphology of MIL-53(Al)-NH2 have great influence on their fluorescence properties, and PAMAM grafting could distinctly further improve their fluorescence intensity. With higher fluorescence intensity, the PAMAM-grafted MIL-53(Al)-NH2 showed good linearity (R2 = 0.9925–0.9990) and satisfactory sensitivity (LOD = 1.1–8.6 μmol) in heavy metal ions determination. Fluorescence enhancement and heavy metal ions detection mechanisms were discussed following the experimental results. Furthermore, analogous water-stable Materials of Institute Lavoisier (MIL) metal–organic frameworks such as MIL-53(Fe)-NH2 were also proved to have similar fluorescence enhancement performance after PAMAM modification, which demonstrates the universality of the method and the great application prospects in the design of PAMAM-functionalized high-sensitivity fluorescence sensors.

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Poly (amido amine) dendrimer based membranes for wastewater treatment – A critical review

Cited by 20 publications

References 89 publications

A Phosphorylated Dendrimer-Supported Biomass-Derived Magnetic Nanoparticle Adsorbent for Efficient Uranium Removal

A Phosphorylated Dendrimer-Supported Biomass-Derived Magnetic Nanoparticle Adsorbent for Efficient Uranium Removal

Enhancement of Polysulfone Ultrafiltration Membrane with Third Generation Poly(Amido Amine)-Graphene Oxide Nanocomposite

Polyamidoamine Dendrimers Functionalized Water-Stable Metal–Organic Frameworks for Sensitive Fluorescent Detection of Heavy Metal Ions in Aqueous Solution

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