Removal of lead ion and oil droplet from aqueous solution by lignin-grafted carbon nanotubes

Li, Zhili; Chen, Junyi; Ge, Yuanyuan

doi:10.1016/j.cej.2016.09.126

Cited by 154 publications

(50 citation statements)

References 54 publications

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“…developed a nanocomposite based on lignin grafted carbon nanotubes (L-CNTs) as a new type of adsorbent for water remediation. The large surface area and 3D structure enable the L-CNTs shows a high removal efficiency for Pb(II) (235 mg g −1 ) and oil droplet (200 mg L −1 ) from water 28 . In the future work, the efficient and high-quality adsorbents are still increasing required.…”

Section: Introductionmentioning

confidence: 99%

Novel multifunctional cheese-like 3D carbon-BN as a highly efficient adsorbent for water purification

Liu

Fang

Jia

et al. 2018

Sci Rep

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In this paper, a novel three dimensional carbon boron nitride (3D C-BN) was successfully prepared. The obtained material has porous cheese-like structure and pore size ranging from 2 nm to 100 nm. Attractively, the 3D C-BN, which combines the adsorption advantages of BN and carbon together, exhibits excellent adsorption properties for organic dyes, oils and heavy metal ions. The maximum removal capacities of 3D C-BN for methyl blue (MB) and congo red (CR) are 408 mg g−1 and 307 mg g−1, respectively. Furthermore, 3D C-BN can quickly and efficiently remove oils (salad oil, gasoline and pump oil) and heavy metal ions (Cr3+, Cd2+ and Ni2+) from waste water. The macro bulk 3D C-BN, which is more convenient to use than powdered materials, can be reused by burning or heating in air and still maintains high adsorption capacity. Significantly, these superior performances can find practical application in water purification.

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Section: Introductionmentioning

confidence: 99%

Novel multifunctional cheese-like 3D carbon-BN as a highly efficient adsorbent for water purification

Liu

Fang

Jia

et al. 2018

Sci Rep

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“…The most recent trend in adsorbent material science are the so-called "low-cost" or "zero-cost" materials [13][14][15]. According to the literature, plenty of low-cost materials have already been tested in wastewater decontamination by adsorbing several pollutants, such as dyes [16][17][18][19], heavy metal ions [20][21][22][23][24][25], Equations (1) [43] and (2) [44], respectively (where I 002 (counts) was the intensity of the 002 crystalline peak at 22 • and I am (counts) was the height of the minimum between the 002 and 110 crystalline peaks):…”

Section: Introductionmentioning

confidence: 99%

Basic Dye Removal with Sorption onto Low-Cost Natural Textile Fibers

2018

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Over the last several years, the trend of researchers has been to use some very low-cost materials as adsorbents. For this purpose, some already commercially used bast fibers were selected as potential adsorbent materials to remove basic dye from synthetic effluents. The adsorption of basic yellow 37 dye was studied using three different bast fibers under the names of flax, ramie, and kenaf. Their morphological structure was examined using several techniques such as scanning electron microscopy (SEM), crystallinity, X-Ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR), as well as those characterizations being a useful tool to propose a mechanism of the whole adsorption process. The adsorption evaluation was achieved by studying at first the pH (12) and temperature effects (25–55 °C). Two isotherm models (Langmuir and Freundlich) were also applied to the experimental equilibrium data revealing the superiority of ramie fibers (327, 435, and 460 mg·g−1 (25 °C) for kenaf, flax, and ramie, respectively). The crucial adsorbent’s dosage was found to be 0.1 g per litre for all fibers, while the completed desorption study (eluant’s pH and reuse cycles) also confirmed the strong potential of these kinds of fibers as adsorbents. The latter may be attributed to the cellulosic content.

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“…Another application of lignin is linked to the preparation of sorbents used to remove metal or metalloid species, nanoparticles, and dissolved organic/inorganic compounds from various solutions (Tonin et al 2016;Li et al 2017;Ge and Li 2018). Lignin is soluble in some pore-forming solvents that allows the creation of porous composite materials in combination with styrene and divinylbenzene (Podkościelna et al 2015(Podkościelna et al , 2017aSobiesiak et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and structure characterization of polymeric nanoporous microspheres with lignin

et al. 2018

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Nanoporous microspheres with divinylbenzene (DVB), styrene (St), and lignin were synthesized by an emulsion-suspension polymerization method. Several types of lignins were used: (1) kraft lignin before (L-unmod) and after modification with methacryloyl chloride (L-Met) and (2) low-molecularweight kraft lignin unmodified (LWL-unmod) and modified with methacrylic anhydride (LWL-Met). LWL was prepared by ultrafiltration of industrial black liquor using a ceramic membrane with a molecular weight (Mw) cut-off of 5 kDa. The synthesis was optimized by addition of different amounts of lignins. The microsphere texture was characterized using low-temperature nitrogen adsorption and small angle X-ray scattering analyses. The microspheres were nano-and mesoporous with a specific surface area in the range of 0.1-409 m 2 /g. The morphology of the copolymers was studied using field emission scanning electron microscopy and atomic force microscopy. The thermal properties were studied using differential scanning calorimetry and thermogravimetric analysis methods. A significant difference in the microsphere roughness is affected by lignins due to the presence of lignin nanoparticles at the surface of the microspheres. Molecular modeling was used to predict the sorption properties of the copolymers affected by various fields around the particles. The particle size, polydispersity and zeta potential of the St ? DVB, L-Met ? St ? DVB and L-unmod ? St ? DVB samples were measured by dynamic light scattering. Additionally, the point of zero charge of the samples was determined using potentiometric titration. The materials studied have a great potential for sorption processes due to their developed porosity and the presence of a number of active surface functionalities.

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Removal of lead ion and oil droplet from aqueous solution by lignin-grafted carbon nanotubes

Cited by 154 publications

References 54 publications

Novel multifunctional cheese-like 3D carbon-BN as a highly efficient adsorbent for water purification

Novel multifunctional cheese-like 3D carbon-BN as a highly efficient adsorbent for water purification

Basic Dye Removal with Sorption onto Low-Cost Natural Textile Fibers

Synthesis and structure characterization of polymeric nanoporous microspheres with lignin

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