Improving copper(II) ion detection and adsorption from wastewater by the ligand-functionalized composite adsorbent

Salman, Md. Shad; Hasan, Md. Nazmul; Hasan, Md. Munjur; Kubra, Khadiza Tul; Sheikh, Md. Chanmiya; Rehan, Ariyan Islam; Waliullah, R.M.; Rasee, Adiba Islam; Awual, Mrs Eti; Hossain, Mohammed Sohrab; Alsukaibi, Abdulmohsen Khalaf Dhahi; Alshammari, Hamed M.; Awual, Md. Rabiul

doi:10.1016/j.molstruc.2023.135259

Cited by 203 publications

(43 citation statements)

References 103 publications

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“…When aromatic chromophores are arranged in a parallel or antiparallel fashion on the silica surface, it may be hypothesized that additionally, in a solution, the aglycone moieties of DOX stack. The π–π stacking interactions between adsorbed DOX molecules are to blame for this propensity. − Therefore, the π–π interactions and hydrophobic interactions between molecules of DOX that have been adsorbed and those that have been given from solution are what cause DOX polylayers to develop on the silica surface at pH 6.0. Setting the pH to 6 may help with the adsorption process since increasing the ionic strength promotes the self-association of DOX.…”

Section: Resultsmentioning

confidence: 99%

Effective Adsorption and Removal of Doxorubicin from Aqueous Solutions Using Mesostructured Silica Nanospheres: Box–Behnken Design Optimization and Adsorption Performance Evaluation

et al. 2023

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The aim of this study is to evaluate the efficacy of mesoporous silica nanospheres as an adsorbent to remove doxorubicin (DOX) from aqueous solution. The surface and structural properties of mesoporous silica nanospheres were investigated using BET, SEM, XRD, TEM, ζ potential, and point of zero charge analysis. To optimize DOX removal from aqueous solution, a Box–Behnken surface statistical design (BBD) with four times factors, four levels, and response surface modeling (RSM) was used. A high amount of adsorptivity from DOX (804.84 mg/g) was successfully done under the following conditions: mesoporous silica nanospheres dose = 0.02 g/25 mL; pH = 6; shaking speed = 200 rpm; and adsorption time = 100 min. The study of isotherms demonstrated how well the Langmuir equation and the experimental data matched. According to thermodynamic characteristics, the adsorption of DOX on mesoporous silica nanospheres was endothermic and spontaneous. The increase in solution temperature also aided in the removal of DOX. The kinetic study showed that the model suited the pseudo-second-order. The suggested adsorption method could recycle mesoporous silica nanospheres five times, with a modest reduction in its ability for adsorption. The most important feature of our adsorbent is that it can be recycled five times without losing its efficiency.

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Section: Resultsmentioning

confidence: 99%

Effective Adsorption and Removal of Doxorubicin from Aqueous Solutions Using Mesostructured Silica Nanospheres: Box–Behnken Design Optimization and Adsorption Performance Evaluation

et al. 2023

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“…NaX-C was defined as the standard sample, and the relative crystallinity was calculated from the peak area of the characteristic peak of NaX in the solid-phase materials. 19 The equation is shown as eqn (1), and the crystallinity obtained with the synthesis time is shown in Fig. 5.…”

Section: Resultsmentioning

confidence: 99%

“…Porous adsorption materials are widely used in adsorption, 13 ion exchange, 14 water treatment 15–19 and catalytic processes. 20 Among these materials, NaX zeolite (pore size 9–10 Å) with a moderate silicon aluminum ratio, good thermal stability, and wide range of applications is considered one of the most suitable materials for synthesis using lithium slag as a raw material.…”

Section: Introductionmentioning

confidence: 99%

Insight into the kinetic behavior of microwave-assisted synthesis of NaX zeolite from lithium slag

Huang¹,

Wang²,

Lin³

et al. 2023

New J. Chem.

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“…The regeneration operation was then performed for the exhausted CTA−Zr to ensure further use. 49,50 The hybrid CTA−Zr could be regenerated by acid treatment due to the apparent decrease in Pb(II) adsorption at pH = 1.0 according to the pH experiment described above (Figure 3D). Regeneration was involved using 1.0% HNO 3 as the desorption agent.…”

Section: Multiple Filtration Experimentsmentioning

confidence: 96%

Facile Fabrication of Carbon Hybrid Membranes by Fast Self-Assembled Coating with Metal–Phenolic Networks for the Selective Separation of Lead from Water

Qiu,

Wang,

et al. 2023

ACS EST Water

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Inert surface chemistry of carbon materials hinders their flexibility in modification for environmental remediation. Herein, the green facile surface coating of metal−phenolic networks on activated carbon via rapid self-assembly is reported for selective separation of Pb(II) from water. The resulting hybrid membrane (CTA−Zr) demonstrates excellent mechanical stability and water flux at a mass ratio of 80% activated carbon and 20% TA−Zr. Data indicate that Pb(II) adsorption of CTA−Zr is up to 592.75 mg in TA−Zr content and a superior selectivity with a distribution coefficient (K d ) of 55.11 L•g −1 with regard to Pb(II), exceeding that of the ion exchanger D001 by 226 times. Underlying adsorption mechanism is mainly dominated by proton exchange between Pb(II) and phenolic hydroxyl groups of TA as indicated by X-ray photoelectron spectroscopy analysis. Continuous filtration experiments demonstrate that 2850 L of water per square meter of a membrane can be treated using CTA−Zr with a breakthrough point of 1.0 mg•L −1 , whereas D001 membrane yields 100 L of clean water. Saturated CTA−Zr can be regenerated more than five times without a considerable decline in performance. This study introduces a novel chemical modification approach for the inert interface to enhance heavy metals removal from water.

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Improving copper(II) ion detection and adsorption from wastewater by the ligand-functionalized composite adsorbent

Cited by 203 publications

References 103 publications

Effective Adsorption and Removal of Doxorubicin from Aqueous Solutions Using Mesostructured Silica Nanospheres: Box–Behnken Design Optimization and Adsorption Performance Evaluation

Effective Adsorption and Removal of Doxorubicin from Aqueous Solutions Using Mesostructured Silica Nanospheres: Box–Behnken Design Optimization and Adsorption Performance Evaluation

Insight into the kinetic behavior of microwave-assisted synthesis of NaX zeolite from lithium slag

Facile Fabrication of Carbon Hybrid Membranes by Fast Self-Assembled Coating with Metal–Phenolic Networks for the Selective Separation of Lead from Water

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