Removal of hazardous dyes, toxic metal ions and organic pollutants from wastewater by using porous hyper-cross-linked polymeric materials: A review of recent advances

Waheed, Abdul; Baig, Nadeem; Ullah, Nisar; Falath, Wail

doi:10.1016/j.jenvman.2021.112360

Cited by 172 publications

(48 citation statements)

References 107 publications

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“…With the widespread use of various dyes, numerous dyes have been released into the environment in the process of the production and use of these dyes. Most dyes are extremely stable, and it is difficult for them to undergo natural degradation [ 1 , 2 , 3 ]. After entering a water environment, the chromaticity of the contaminated water is caused, which can affect the amount of incident light and the normal life activities of the aquatic animals and plants, and thus destruct the ecological balance of water.…”

Section: Introductionmentioning

confidence: 99%

Oxidation-Induced and Hydrothermal-Assisted Template-Free Synthesis of Mesoporous CeO2 for Adsorption of Acid Orange 7

Ding

2022

Materials

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Hydrogen peroxide (H2O2), an accessible and eco-friendly oxidant, was employed for the template-free hydrothermal synthesis of mesoporous CeO2 based on a cerium carbonate precursor (Ce2(CO3)3•xH2O). Its microstructure and physicochemical properties were characterized by XRD, TEM and N2 sorption techniques. The formation of the CeO2 phase with a porous structure was strongly dependent on the presence of H2O2, while the values of the BET surface area, pore diameter and pore volume of CeO2 were generally related to the amount of H2O2 in the template-free hydrothermal synthesis. The BET surface area and pore volume of the mesoporous CeO2 synthesized hydrothermally at 180 °C with 10 mL H2O2 were 112.8 m2/g and 0.1436 cm3/g, respectively. The adsorption process had basically finished within 30 min, and the maximum adsorption efficiency within 30 min was 99.8% for the mesoporous CeO2 synthesized hydrothermally at 140 °C with 10 mL, when the initial AO7 concentration was 120 mg/L without pH preadjustment. The experimental data of AO7 adsorption were analyzed using the Langmuir and Freundlich isotherm modes. Moreover, the mesoporous CeO2 synthesized at 140 °C with 10 mL H2O2 was regenerated in successive adsorption–desorption cycles eight times without significant loss in adsorption capacity, suggesting that the as-synthesized mesoporous CeO2 in this work was suitable as an adsorbent for the efficient adsorption of AO7 dye from an aqueous solution.

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Section: Introductionmentioning

confidence: 99%

Oxidation-Induced and Hydrothermal-Assisted Template-Free Synthesis of Mesoporous CeO2 for Adsorption of Acid Orange 7

Ding

2022

Materials

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“…For example, AgNP-decorated polyaniline-nanocrystalline organic-inorganic hybrid zeolite (PANI-Nano-ZSM-5)-modified GC was constructed to detect lindane through its irreversible reduction via dissociative electron transfer 163 . Additionally, FeS2/AgNPs/screen-printed carbon electrode, para-sulfonatocalix [6]arene-AgNPs/GC, β-1,4 poly D-glucosamine-AgNPs/graphite electrode, AgNPs/Au electrode, biomass carbon/Cr2O3/Ag/MIP/GC, and stearic acid/AgNPs/GC respectively were previously reported for the detection of acifluorfen, methyl parathion, 4-nitrophenol, 4nitrotoluene, nitrofurazone, and paraoxon, respectively, on the basis of the irreversible reduction of -NO2 to hydroxylamine groups 125,128,[164][165][166][167] . Additionally, thiodicarb was detected at an AgNPs/silver solid amalgam electrode depending on the electrochemical reduction of two symmetric carbonyl groups in the molecule involving four protons and four electrons 168 .…”

Section: Agnp Electrochemical Sensor Based On Organic Pollutant Oxidation/reductionmentioning

confidence: 99%

“…Accordingly, water treatment to remove organic pollutants has become a vital process. Basically, the treatment could be done by removing pollutants via coagulation and subsequent precipitation, filtration, or adsorption [3][4][5][6][7] . Additionally, the treatment could be achieved by degrading organic pollutants into nonhazardous or less hazardous substances 5 .…”

Section: Introductionmentioning

confidence: 99%

Recent advances in silver nanoparticle-based electrochemical sensors for determining organic pollutants in water: a review

et al. 2021

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“…mainly resulting from textile industry is harmful for organisms due to the potential toxicity and carcinogenicity, if it is discharged untreated into rivers and causing deterioration of the environment. [1,2] Although approximately 7 × 10 7 tons of organic dyes (more than 10,000 tons coming from the textile industry) wastewater are produced worldwide every year, most of all are difficult to treatment and degrade. [3] Therefore, it is urgent to treatment the organic dye wastewater for protecting water resources.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Removal of Congo Red from Aqueous Solution by Lime‐Preconditioned Phosphogypsum

Deng

Luo

et al. 2022

ChemistrySelect

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Phosphogypsum (PG) modified by milk of lime (namely limepreconditioned phosphogypsum, PPG) is investigated to evaluate the adsorption thereof for removing Congo Red (CR) from aqueous solution. The experimental parameters, such as adsorbent dosage, pH, adsorption temperature, initial CR concentration and contact time, are carefully studied in the batch system. FT-IR, XRD, BET and SEM are used to characterize the structure and morphology of PPG in the various conditions. The adsorption kinetic and isotherm of PPG onto CR from aqueous solution are fitted using quasi-first-order and quasisecond-order kinetic equations, and Langmuir and Freundlich models, respectively. The quasi-second-order kinetic equation is more suitable to describe the adsorption kinetics of CR by PPG than the quasi-first-order kinetic equation. The equilibrium data of CR is found to best fit to the Langmuir model. The adsorption capacity for CR achieved 79.5 mg/g according to Langmuir model. Further, the thermodynamic results show that the adsorption is an endothermic and spontaneous process. Meanwhile, desorption experiments are performed to verify and reveal the adsorption behavior. And the packed microchannel is firstly applied to remove CR from aqueous solution. Finally, the adsorption mechanism is speculated according the structure of CR and PPG. PG can be employed as wasterecycling alternatives for recalcitrant dye removal from aqueous solution.

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Removal of hazardous dyes, toxic metal ions and organic pollutants from wastewater by using porous hyper-cross-linked polymeric materials: A review of recent advances

Cited by 172 publications

References 107 publications

Oxidation-Induced and Hydrothermal-Assisted Template-Free Synthesis of Mesoporous CeO2 for Adsorption of Acid Orange 7

Oxidation-Induced and Hydrothermal-Assisted Template-Free Synthesis of Mesoporous CeO2 for Adsorption of Acid Orange 7

Recent advances in silver nanoparticle-based electrochemical sensors for determining organic pollutants in water: a review

Highly Efficient Removal of Congo Red from Aqueous Solution by Lime‐Preconditioned Phosphogypsum

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