Decontamination of bisphenol A and Congo red dye from solution by using CTAB functionalised walnut shell

Dovi, Evans; Kani, Alexander Nti; Aryee, Aaron Albert; Ma, Jie; Li, Jianjun; Li, Zhaohui; Qu, Lingbo; Han, Runping

doi:10.1007/s11356-021-12550-4

Cited by 59 publications

(21 citation statements)

References 63 publications

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“…The Clark constants were determined by plotting C t /C 0 versus t at a given condition was analyzed by nonlinear regression. Values of n were 3.52 for CR and 3.26 for BPA according to previous study in batch mode, respectively (Dovi et al, 2021). Fig.…”

Section: Application Of Clark Modelmentioning

confidence: 84%

“…The surface of the modified adsorbent became cationic and non-polar, that made it more appropriate for the uptake of negatively charged CR dyes and BPA. The surface functional groups that promoted the uptake of CR and BPA were confirmed by FTIR and XPS analysis, respectively (Dovi et al, 2021). During the adsorption, the main interactive forces could be electrostatic attraction which may occur between the negative group of CR and BPAmolecules and cationic adsorbent and hydrophobic reaction between the phenyl group of the pollutants and the alkyl chain on the modified adsorbent (WNS-CTAB) is another interaction for the removal process (Xia et al, 2011).…”

Section: Comparing Breakthrough Curves Of Wns and Wns-ctabmentioning

confidence: 88%

“…The modification process was according to previous work (Dovi et al, 2021). Simply, the clean walnut shell was grinded and sieved to obtain particle with 40-60 mesh.…”

Section: Preparation Of Ctab Modified Walnut Shell (Wns-ctab)mentioning

confidence: 99%

“…Nevertheless, large amount of carbon (IV) oxide could emanate from the burning of walnut wastes which is a potential pollutant and might contribute to global warming. Research revealed that walnut shell possesses outstanding properties such as large surface area, good stability and good chemical stability, thus could be an important precursor for use in the industry (Cao et al, 2014;Li et al, 2020;Dovi et al, 2021). Hence, using walnut shells which is copiously available, cheap, and easiness to work with, in the area of adsorption to remove waste water could be well thought-out to be safe and eco-friendly.…”

Section: Introductionmentioning

confidence: 99%

“…Herein, an apt, environmental-friendly and cheap adsorbent, WNS-CTAB (cetyltrimethylammonium bromide modified walnut shell), has been developed for BPA and CR removal from aqueous solutions by adsorption procedure in batch mode (Dovi et al, 2021). From this study, the modifying agents can improve the uptake capacity of WNS towards CR and BPA adsorption from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

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Fixed-bed Adsorption of Congo red dye and Bisphenol A from solution onto surfactant modified walnut shell

Dovi

Aryee

Kani

et al. 2021

Preprint

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Wastewater stemming from industries may contain pollutants such as synthetic dyes and endocrine-disrupting chemicals which are known to be harmful to living organisms. Therefore, to safeguard the wellbeing of humankind and environmental safety, it is imperative for industrial effluents to be sanitized before their discharged into water bodies. Furthermore, to explore the utilization of agricultural byproduct is valuable to study. To achieve this, a Cetyltrimethylammonium bromide functionalized Walnut shells (WNS-CTAB) were prepared to remove pollutants in column approach. The column work was carried out for diverse working conditions. There is in favor of adsorption at low influent pollutant concentration, low flow rate or high bed depth. As the highest breakthrough time of 113 and 23 min at flow rate 6 mL min −1 was recorded for both CR and BPA, respectively, the Yan’s kinetic model best described the breakthrough curve. The adsorbent showed better regeneration capabilities; accordingly can offer practical use for adsorption of CR and BPA from wastewaters.

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Section: Application Of Clark Modelmentioning

confidence: 84%

Section: Comparing Breakthrough Curves Of Wns and Wns-ctabmentioning

confidence: 88%

“…The modification process was according to previous work (Dovi et al, 2021). Simply, the clean walnut shell was grinded and sieved to obtain particle with 40-60 mesh.…”

Section: Preparation Of Ctab Modified Walnut Shell (Wns-ctab)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fixed-bed Adsorption of Congo red dye and Bisphenol A from solution onto surfactant modified walnut shell

Dovi

Aryee

Kani

et al. 2021

Preprint

Self Cite

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Co‐Aggregation Induced by Amphiphilic Membrane Interface for the Capture of Trace Endocrine Disruptors from Water

Ouyang

Gui

Liu

et al. 2022

Adv Materials Inter

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Endocrine disruptors (EDCs) are widely detected in water resources owing to the abuse of plastic products, posing a serious global concern. Unfortunately, the rapid, effective, and economical removal of trace EDCs from water remains a significant challenge. Herein, a novel adsorptive membrane (PVPM) with excellent recyclability and stability is prepared by the UV‐initiated grafting of poly(N‐vinylpyrrolidone) (PNVP) onto the surface of polypropylene fibrous membrane (PPM). The PVPM exhibits high flux, low‐pressure drop, and excellent adsorption performance. It can efficiently capture trace (10 µg L−1) EDCs with a removal efficiency of 99%. Notably, the adsorption performance of the PVPM remains unchanged even in river water. A mechanism for the adsorption is proposed based on adsorption kinetics and thermodynamics. Specifically, dynamic hydrophobic microdomains are generated between amphiphilic PNVP and EDCs and form co‐aggregates on the PPM substrate. This co‐aggregation is responsible for the large adsorption capacity for EDCs. A large decrease in the free energy (−16.65 kJ mol−1) of the adsorption process provides additional evidence for the strong adsorption affinity of the PVPM to EDCs. This study introduces a new pathway for designing low‐cost and high‐performance membrane adsorbents for prompt and efficient capture of trace EDCs from water.

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Thermochemical Conversion of Biomass into Value-Added Materials for Effluent Treatment Applications

Sundarabal

Parimelazhagan

Josephine

et al. 2022

Clean Energy Production Technologies

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Decontamination of bisphenol A and Congo red dye from solution by using CTAB functionalised walnut shell

Cited by 59 publications

References 63 publications

Fixed-bed Adsorption of Congo red dye and Bisphenol A from solution onto surfactant modified walnut shell

Fixed-bed Adsorption of Congo red dye and Bisphenol A from solution onto surfactant modified walnut shell

Co‐Aggregation Induced by Amphiphilic Membrane Interface for the Capture of Trace Endocrine Disruptors from Water

Thermochemical Conversion of Biomass into Value-Added Materials for Effluent Treatment Applications

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