Cross-linked FeCl3-activated seaweed carbon/MCM-41/alginate hydrogel composite for effective biosorption of bisphenol A plasticizer and basic dye from aqueous solution

Marrakchi, Fatma; Zafar, Fatemeh Fazeli; Wei, Manman; Wang, Shuang

doi:10.1016/j.biortech.2021.125046

Cited by 52 publications

(13 citation statements)

References 39 publications

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“…S BET was 35 m 2 /g and the adsorption maximum for diclofenac was 29.9 mg/g. Marrakchi et al [ 72 ] acquired cross-linked FeCl 3 -activated seaweed carbon/MCM-41/alginate hydrogel composite. The specific surface area was 222 m 2 /g, the maximum adsorption values were 222.32 and 190.11 mg/g, respectively, for bisphenol A plasticizer and basic blue dye.…”

Section: Discussionmentioning

confidence: 99%

Adsorption of Non-Steroidal Anti-Inflammatory Drugs on Alginate-Carbon Composites—Equilibrium and Kinetics

Wasilewska

Deryło–Marczewska

2022

Materials

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In this work, alginate–carbon composites with different active carbon content were synthesized and studied by various techniques. The obtained materials can be used as adsorbents in the processes of removing organic pollutants from water. In this study, the effect of the immobilization of activated carbon in calcium alginate was investigated. Textural properties were determined by measuring low-temperature nitrogen adsorption/desorption isotherms. The largest specific surface area was recorded for ALG_C8 and amounted to 995 m2/g. The morphology of alginate materials was determined on the basis of scanning electron microscopy. The adsorption properties were estimated based on the measurements of equilibrium and adsorption kinetics. The highest sorption capacities were 0.381 and 0.873 mmol/g for ibuprofen and diclofenac, respectively. The generalized Langmuir isotherm was used to analyze the equilibrium data. A number of equations and kinetic models were used to describe the adsorption rate data, including first (FOE) and second (SOE) order kinetic equations, 1,2-mixed-order kinetic equation (MOE), fractal-like MOE equation (f-MOE), multi-exponential equation (m-exp), in addition to diffusion models: intraparticle diffusion model (IDM) and pore diffusion model (PDM). Thermal stability was determined on the basis of data from thermal analysis in an atmosphere of synthetic air.

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Section: Discussionmentioning

confidence: 99%

Adsorption of Non-Steroidal Anti-Inflammatory Drugs on Alginate-Carbon Composites—Equilibrium and Kinetics

Wasilewska

Deryło–Marczewska

2022

Materials

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“…This was consistent with the findings of a previous study that the fish composition was mainly dominated by small-size fish such as Evynnis cardinalis, Callionymus koreanus, Clupanodon punctatus, Trachurus japonicus, Thamnaconus hypargyreus, and Leiognathus brevirostris, where the fish size structure showed a trend of miniaturization and low weight (Guo et al, 2018). Studies have also shown that the status of fish abundance is related to its reproductive rate, growth habits, seasonal differences in the living environment, and human activities (especially fishing) (Fenberg and Roy 2008;Li 2008;Rochet and Benoit 2012;Guo et al, 2018;Xu et al, 2020;Marrakchi et al, 2021). Considering the time of the investigation, the spring and summer seasons were before and after the South China Sea fishing moratorium, but summer was the most disturbed, while the fish community structure in spring was less disturbed than summer.…”

Section: Discussion Ecological Indication Of Abc Curvementioning

confidence: 99%

Evaluation of Fish Communities in Daya Bay Using Biomass Size Spectrum and ABC Curve

Guo

Liu

et al. 2021

Front. Environ. Sci.

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Based on the data collected by four trawl surveys during 2016–2017, we applied biomass size spectrum (BSS) and abundance–biomass comparison (ABC) curve to assess the status of fish communities’ status in Daya Bay, China. Our findings indicated a unimodal pattern and biomass size ranged from −2 to 10 grain levels and the pattern of the Sheldon-type BSS of fish in Daya Bay. Moreover, fishes in the range of four to eight size class were relatively abundant. The highest peak belonged to the two to four grain level (log2 size bins), mainly consisting of Leiognathus brevirostris, Callionymus meridionalis, Callionymus koreanus, Evynnis cardinalis, Trachurus japonicus, and other small fishes. The curves of the BSS in spring and winter were relatively flat and comprised a large curvature. The summer and autumn curves were comparatively steep, and the seasonal curvature was small. The curvatures of the curve were mainly related to a large number of small Evynnis cardinalis and a small number of large-sized Harpadon nehereus and Leiognathus ruconius. In our study, it was observed that the number and the size of the breeding population, trophic levels, migration habits, and other life history characteristics, as well as anthropogenic disturbances (especially overfishing), significantly affected the peak shape, slope, or curvature of the fish BSS, with overfishing being the main factor. The ABC curve exhibited that Daya Bay was in a critical state of disturbance throughout the year. The spring, summer, and autumn were in severe disturbance, while the winter was in moderate disturbance.

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“…Absorption peaks of O-H, C=O, C=H, and C-H of about 3500, 1700, 1670, and 1390 cm −1 , respectively, were observed in all six samples. Due to the dehydration of ZnCl 2 , the O-H absorption peaks of TNK and TSK were weak, however, they showed obvious C=O absorption peaks [44]. Redox reaction of the carboxyl group can occur in alkaline electrolytes, which can improve the electrochemical performance of carbon materials [4,33].…”

Section: Ftir Analysismentioning

confidence: 99%

Study on Preparation of Nitrogen-Doped Hierarchically Porous and High-Performance Carbon Materials from Seaweed Biomass

Xie¹,

Hu²,

Afonaa-Mensah³

et al. 2022

Journal of Renewable Materials

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Use Enteromorpha clathrate as a carbon and nitrogen precursor could obtain the N-doped porous carbon materials by two-step pyrolysis. In this paper, the exogenous nitrogen (urea, melamine) and activating agents (KOH, ZnCl 2 ) were employed for the production of higher-performance carbon materials from seaweed biomass. SEM, BET, FTIR, XRD, XPS, Raman and ultimate analyses were carried out to investigate the morpho-structural and elemental peculiarities of the carbonaceous materials. Moreover, cyclic voltammetry (CV) , galvanostatic chargedischarge (GCD) and cyclic charge-discharge tests were carried out to examine the electrochemical properties of the samples. The results showed that electrochemical performance of the carbonaceous materials improved by adding the appropriate nitrogen sources. This improvement was observed under either condition, when the nitrogen source and activating agent were melamine and ZnCl 2 or urea and KOH, respectively. Specifically, under the condition with KOH as the activator, the nitrogen content of carbon material without exogenous nitrogen was initially 1.46%. After the addition of urea or melamine, the nitrogen content increased to 4.86% and 6.18%, respectively. Under the condition with ZnCl 2 as the activator, and without exogenous nitrogen, the nitrogen content of carbon materials was initially 3.75%. However, after adding urea or melamine, the nitrogen content increased to 12.11% and 14.76%, respectively. The carbonaceous materials (prepared from urea/KOH and melamine/ZnCl 2 ) showed excellent gravimetric capacitances of 172 and 151.5 F/g at 1A/g. Moreover, at a current density of 5 A/g, their specific capacitance retention rate reached 78.3% and 82.6% respectively after 1000 cycles.

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Cross-linked FeCl3-activated seaweed carbon/MCM-41/alginate hydrogel composite for effective biosorption of bisphenol A plasticizer and basic dye from aqueous solution

Cited by 52 publications

References 39 publications

Adsorption of Non-Steroidal Anti-Inflammatory Drugs on Alginate-Carbon Composites—Equilibrium and Kinetics

Adsorption of Non-Steroidal Anti-Inflammatory Drugs on Alginate-Carbon Composites—Equilibrium and Kinetics

Evaluation of Fish Communities in Daya Bay Using Biomass Size Spectrum and ABC Curve

Study on Preparation of Nitrogen-Doped Hierarchically Porous and High-Performance Carbon Materials from Seaweed Biomass

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