Utilisation of Rubber Wood Shavings for the Removal of Cu(II) and Ni(II) from Aqueous Solution

Nordin, Nordiana; Zakaria, Zainul Akmar; Ahmad, Wan Azlina

doi:10.1007/s11270-011-0972-9

Cited by 6 publications

(1 citation statement)

References 19 publications

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“…The adsorption method, utilizing physical and chemical interactions such as van der Waals forces, electrostatic attraction, hydrogen bonding, chelation, conjugation, and coordination to achieve aggregation of the adsorbates on the surface of the adsorbent [20,21], is an environmentally friendly technique that can be operated at low cost [22,23,24,25,26]. Many studies have been widely conducted to investigate the use of low-cost adsorbents such as wood shavings silica [27], fly ash [28], steel-plant slag [29], peat [30], china clay [31], and bentonite [32] for dyes removal. Unfortunately, these low-cost adsorbents typically have low adsorption capacity, which limits their widespread using.…”

Section: Introductionmentioning

confidence: 99%

Scalable Fabrication of Metallopolymeric Superstructures for Highly Efficient Removal of Methylene Blue

Zhou

Yang

et al. 2019

Nanomaterials

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Metallopolymeric superstructures (MPS) are hybrid functional materials that find wide applications in environmental, energy, catalytic and biomedical-related scenarios, while their fabrication usually suffers from the complicated polymerization between monomeric ligands and metal ions. In this work, we have developed a facile one-step protocol to fabricate metallopolymeric superstructures with different morphology including nanospheres, nanocubes, nanorods, and nanostars for environmental remediation application. Specifically, we have firstly synthesized the amphiphilic block copolymers (BCP) bearing hydrophobic aromatic backbone and hydrophilic pendent carboxylic/sulfonic groups, which have been subsequently transformed into MPS via the metal ions mediated self-assembly in mixed solution of dimethylformamide (DMF) and H2O. Based on SEM, FTIR, XRD and XPS characterization, we have revealed that the fine morphology and condensed structures of MPS can be modulated via the metal ions and BCP concentration, and the obtained MPS can be employed as efficient adsorbents for the removal of methylene blue with maximum adsorption capacity approaching 936.13 mg/g.

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Section: Introductionmentioning

confidence: 99%

Scalable Fabrication of Metallopolymeric Superstructures for Highly Efficient Removal of Methylene Blue

Zhou

Yang

et al. 2019

Nanomaterials

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Determination of point of zero charge of natural organic materials

Bakatula

Richard

Neculita

et al. 2018

Environ Sci Pollut Res

283

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This study evaluates different methods to determine points of zero charge (PZCs) on five organic materials, namely maple sawdust, wood ash, peat moss, compost, and brown algae, used for the passive treatment of contaminated neutral drainage effluents. The PZC provides important information about metal sorption mechanisms. Three methods were used: (1) the salt addition method, measuring the PZC; (2) the zeta potential method, measuring the isoelectric point (IEP); (3) the ion adsorption method, measuring the point of zero net charge (PZNC). Natural kaolinite and synthetic goethite were also tested with both the salt addition and the ion adsorption methods in order to validate experimental protocols. Results obtained from the salt addition method in 0.05 M NaNO were the following: 4.72 ± 0.06 (maple sawdust), 9.50 ± 0.07 (wood ash), 3.42 ± 0.03 (peat moss), 7.68 ± 0.01 (green compost), and 6.06 ± 0.11 (brown algae). Both the ion adsorption and the zeta potential methods failed to give points of zero charge for these substrates. The PZC of kaolinite (3.01 ± 0.03) was similar to the PZNC (2.9-3.4) and fell within the range of values reported in the literature (2.7-4.1). As for the goethite, the PZC (10.9 ± 0.05) was slightly higher than the PZNC (9.0-9.4). The salt addition method has been found appropriate and convenient to determine the PZC of natural organic substrates.

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Analysis of the kinetics of lead biosorption using native and chemically treated olive tree pruning

Ronda

Martín-Lara

Calero

et al. 2013

Ecological Engineering

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Utilisation of Rubber Wood Shavings for the Removal of Cu(II) and Ni(II) from Aqueous Solution

Cited by 6 publications

References 19 publications

Scalable Fabrication of Metallopolymeric Superstructures for Highly Efficient Removal of Methylene Blue

Scalable Fabrication of Metallopolymeric Superstructures for Highly Efficient Removal of Methylene Blue

Determination of point of zero charge of natural organic materials

Analysis of the kinetics of lead biosorption using native and chemically treated olive tree pruning

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