Preparation of capsules containing 1-nonanol for rapidly removing high concentration phenol from aqueous solution

Zhao, Guanghui; Li, Yanfeng; Liu, Xiaoxia; Liu, Xiaoli

doi:10.1016/j.jhazmat.2009.10.068

Cited by 24 publications

(7 citation statements)

References 37 publications

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“…The adsorption kinetics can also be described by pseudo‐second‐order equation [34, 35]: The second‐order rate constants were used to calculate the initial sorption rate ( h ), given by the following Eq. (8): where Q t is the amount of phenol adsorbed (mg g −1 ) on PSF/GNS nanocomposites capsules at various time t , Q e2 is the maximum adsorption capacity (mg g −1 ) for the pseudo‐second‐order adsorption, k 2 is the rate constant of pseudo‐second‐order for the adsorption (g mg −1 min −1 ).…”

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of polysulfone/graphite nanosheets composites capsules for the adsorption of phenol in aqueous solution

Yang

et al. 2013

Polymer Composites

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In this study, the polysulfone (PSF) capsules containing graphite nanosheets (GNS) were successfully prepared by a phase inversion precipitation method. Scanning electron microscopy and thermogravimetry were employed in the characterization of the as‐prepared PSF/GNS composites capsules. Meanwhile, the adsorption properties of the composites capsules for the phenol in aqueous solution were investigated by batch methods. The results showed that the phenol adsorption uptake would be increased with the enhancement of initial concentration and adsorption time, and the adsorption of phenol should be more favorable at pH value less than 9. The composites capsules would be a kind of promising alternative adsorbent with high adsorption capacity for the phenol from aqueous solutions at a low concentration. The adsorption kinetics of the capsules for phenol accorded with pseudo‐second‐order model, and the best fits of adsorption isotherms followed the Freundlich equation. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Preparation and characterization of polysulfone/graphite nanosheets composites capsules for the adsorption of phenol in aqueous solution

Yang

et al. 2013

Polymer Composites

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“…Solution pH, which primarily affects the degree of ionization of phenol as well as the surface charge of the adsorbents, is one of the most important parameters in controlling the adsorption result [3]. Therefore, the effect of solution pH on phenol uptakes by the VE resin was examined and the results were shown in Fig.…”

Section: Effect Of Solution Phmentioning

confidence: 99%

“…As a representative in water environment, phenol is a toxic and carcinogenic substance when absorbed through the respiratory organ, skin, and the alimentary canal [1,2]. Ingesting such contaminated water in the human body causes cell damage, protein degeneration, tissue erosion and paralysis of the central nervous system and also damages the kidney, liver and pancreas [3]. So clean up of the toxic phenolic substances from waste water prior to discharge into the environment is necessary.…”

Section: Introductionmentioning

confidence: 99%

A novel polymeric adsorbent by a self-doped manner: synthesis, characterization, and adsorption performance to phenol from aqueous solution

et al. 2016

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The organic-inorganic self-doped poly (vinyltrimethoxy silane-ethylene glycol dimethacrylate) (VE resin) was synthesized by solution polymerization, hydrolysis and dehydration condensation. In this method, ethylene glycol dimethacrylate (EGDMA) was used as cross-linked reagent to form a three-dimensional network structure. Then, the system was prepared by radical polymerization in the presence of the hydrolysis of -OCH 3 and the dehydration condensation of Si-OH. The maximum adsorption capacity 75.68 mg g -1 was achieved when pH was 6, the contact time 60 min, the adsorbent dose 0.1 g, the initial concentration 3000 mg L -1 and the temperature 293 K. The adsorption kinetics followed the pseudo-second-order kinetic model, and the intra-particle diffusion was but not the only rate-limiting step. Adsorption isotherms of phenol were linearly correlated and found to be well represented by the Freundlich model. Thermodynamic parameters such as changes in the enthalpy (DH), free energy (DG) and entropy (DS) indicated that the adsorption process of phenol on VE resin were physical and exothermic. After four regeneration recycles, the adsorption capacity of VE resin remained at 95.04 % of the initial value, which illustrated that it possessed good regeneration capacity.

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“…Thus because of toxicity of chlororinated phenolic compounds many treatment processes have been applied for the removal of them from waste water. Some of these processes include: adsorption (Zhao et al, 2010), photo-fenten degradation (Parida and Prahan, 2010), photocatalytic degradation (Devipriya and Yesodharan, 2010) and biodegradation (Agarry and Solomon, 2008). Combined methods like biochemical, electrochemical, physicochemical or simultaneous adsorption and biodegradation is nowadays gaining importance.…”

Section: Introductionmentioning

confidence: 99%

Removal of 2,4-dichlorophenol by simultaneous adsorption and biodegradation (SAB) using low cost adsorbents

2014

Global NEST Journal

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<div> This study was aimed to investigate the use of Mustard stalk as a cheap, eco-friendly adsorbent with support matrix for the immobilization of microbial cell and for subsequent removal of 2,4-dichlrophenol(2,4-DCP) from waste water. A comparative batch study between adsorption as well as simultaneous adsorption and biodegradation (SAB) of 2,4-DCP by mustard stalk immobilized Pseudomonas putida MTCC1194 have been studied in conical flask having concentration ranges of 2,4-DCP from 100 to 1000 mg l-1 with adsorbent dose range 1 to 12 g l-1 at pH range 2 to 9 and temperature range 28°C to 35°C, placed in an orbital shaker. The results of the batch studies showed that simultaneous adsorption and biodegradation (SAB) shows the maximum percent (91%) removal of 2,4-DCP as compared to simple adsorption (86 %) at optimum temperature 32 °C of adsorbent dose 10 g l-1, and pH 6 with MSAC having particle size 0.24 mm. The equilibrium data for 2,4-DCP degradation sorbent systems were well fitted with Langmuir isotherm. </div>

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Preparation of capsules containing 1-nonanol for rapidly removing high concentration phenol from aqueous solution

Cited by 24 publications

References 37 publications

Preparation and characterization of polysulfone/graphite nanosheets composites capsules for the adsorption of phenol in aqueous solution

Preparation and characterization of polysulfone/graphite nanosheets composites capsules for the adsorption of phenol in aqueous solution

A novel polymeric adsorbent by a self-doped manner: synthesis, characterization, and adsorption performance to phenol from aqueous solution

Removal of 2,4-dichlorophenol by simultaneous adsorption and biodegradation (SAB) using low cost adsorbents

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