Adsorption performance of modified agricultural waste materials for removal of emerging micro-contaminant bisphenol A: A comprehensive review

Mpatani, Farid Mzee; Han, Runping; Aryee, Aaron Albert; Kani, Alexander Nti; Li, Zhaohui; Qu, Lingbo

doi:10.1016/j.scitotenv.2021.146629

Cited by 142 publications

(39 citation statements)

References 135 publications

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“…13). As illustrated in Table 4, the negative values of ΔG° for PO4 3and NO3at all temperatures proved the spontaneity and irreversibility of the uptake processes (Mpatani et al, 2021 ; As temperature increased, the absolute values of ∆G° decreased, implying that adsorption of contaminants into ACWNS was more beneficial at lower temperatures. Besides, lower values for ΔG°, suggest that physical process might chiefly control the adsorption process (Subbaiah and Kim, 2016;Kumar et al, 2014).…”

Section: Thermodynamic Studiesmentioning

confidence: 88%

“…5 c and d). This predicts that the rate limiting step could be chemisorption or ion exchange (Mpatani et al, 2021). Nonetheless, the R 2 values derived from pseudo-first-order and Elovich kinetic models were quite high (Table 3).…”

Section: Effect Of Equilibrium Concentration and Fitting Of Isotherm Modelsmentioning

confidence: 98%

“…Previous works reveal that WNS was less utilized compared with other agricultural wastes such as peanut husk (Mpatani et al, 2021) rice husk, bagasse (Hamoudi and Belkacemi, 2013;Mpatani et al, 2020). However, WNS could be considered as a critical agricultural waste content as a result of its large production.…”

Section: Introductionmentioning

confidence: 99%

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Amine-grafted Walnut Shell for Efficient Removal Phosphate and Nitrate from Aqueous Solution

Dovi¹,

Aryee²,

Li³

et al. 2021

Preprint

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The presence of emerging pollutants such as PO43− and NO3− in water bodies has attracted worldwide concern about their severe effects on water bodies and the health of humankind in general. Therefore, to preserve the health of humankind and environmental safety, it is of the essence that industrial effluents are treated before they are discharged into water bodies. To accomplish this, the walnut shell was functionalized (ACWNS) with amine for effective removal of PO43− and NO3−. Characterization studies of ACWNS were conducted using FTIR, XRD, XPS and BET techniques. Removal of both ions was enhanced at lower temperature (293 K). The maximum uptake capacity of phosphate and nitrate, at 293 K, was 82.2 and 35.7 mg g− 1, respectively. The primary mechanism by which these ions were uptaken onto ACWNS could be electrostatic interactions and hydrogen bonding.Pseudo-second-order kinetics fitted the PO43̶ and NO3− adsorption, while Freundlich and Langmuir models best fitted the PO43̶ and NO3̶ adsorption, respectively. Furthermore, in the binary system, the uptake capacity of phosphate decreased by 14.4% while nitrate witnessed a reduction in its uptake capacity by 10.4 %. So ACWNS has a higher attraction towards both ions and this could be attributed to the existence of a variety of active areas on ACWNS that exhibit a degree of specificity for the individual anions. Results obtained from real water samples analysis confirmed ACWNS as highly efficient to be utilized for practical remediation processes.

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Section: Thermodynamic Studiesmentioning

confidence: 88%

Section: Effect Of Equilibrium Concentration and Fitting Of Isotherm Modelsmentioning

confidence: 98%

See 1 more Smart Citation

Amine-grafted Walnut Shell for Efficient Removal Phosphate and Nitrate from Aqueous Solution

Dovi¹,

Aryee²,

Li³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

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“…In fact, thousands of adsorbents from available sources have been recommended in the literature to remove contaminants, for instance, clay minerals, biomass, materials from agricultural wastes, and by-products (Akpomie and Conradie 2020). Biomass-based adsorbents have gained considerable attention thanks to their availability in huge quantities in most places worldwide, environmental friendliness, and demanding simple pretreatment and preparation (Mpatani et al 2021). In particular, the use of waste biomass from invasive species as adsorbent materials for the removal of pollutants from aqueous streams could decrease their threat, in harmony with the circular economy (Ahmed et al 2020;Lian et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Invasive plants as biosorbents for environmental remediation: a review

et al. 2022

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Water contamination is an environmental burden for the next generations, calling for advanced methods such as adsorption to remove pollutants. For instance, unwanted biowaste and invasive plants can be converted into biosorbents for environmental remediation. This would partly solve the negative effects of invasive plants, estimated at 120 billion dollars in the USA.Here we review the distribution, impact, and use of invasive plants for water treatment, with emphasis on the preparation of biosorbents and removal of pollutants such as cadmium, lead, copper, zinc, nickel, mercury, chromate, synthetic dyes, and fossil fuels. Those biosorbents can remove 90-99% heavy metals from aqueous solutions. High adsorption capacities of 476.190 mg/g for synthetic dyes and 211 g/g for diesel oils have been observed. We also discuss the regeneration of these biosorbents.

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“…Adsorption is one of the most effective technologies for removing a wide range of pollutants (Mpatani et al 2021). Hydrogel adsorbents, as a new kind of adsorbent materials, have been widely used to eliminate BPA in water, showing super high adsorption capacity (Chen et al 2019), fast adsorption equilibrium (Zhou et al 2019) and wide pH-independence (Du and Piao 2018).…”

Section: Introductionmentioning

confidence: 99%

Self-regeneration hybrid hydrogel for bisphenol a adsorption in water

Piao

Sun

et al. 2022

Environ Sci Pollut Res

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Hybrid hydrogel was synthesized by immobilizing TiO2 in polyethylene glycol diacrylate (TiO2@PEGDA) as an efficient adsorbent with photocatalysis property for bisphenol A (BPA) elimination. TiO2@PEGDA exhibited spherical and rough structure with limited crystallinity and abundant functional groups. The contact angle was 61.96°, indicating that TiO2@PEGDA is hydrophilic. The swelling capacity of TiO2@PEGDA (9.0%) was decreased compared with pristine PEGDA (15.6%).Adsorption results demonstrated that the maximum adsorption capacity of TiO2@PEGDA (101.4 mg/g) for BPA was slightly higher than pristine PEGDA (97.68 mg/g). The adsorption capacity was independent with pH at pH ＜ 8.0, and decreased obviously when the value of pH was higher than 8.0. The adsorption behavior was fitted well with the pseudo-second-order kinetic and the Freundlich isotherm model. Both ΔG0 and ΔH0 were negative, indicating that BPA adsorbed on TiO2@PEGDA was an exothermic and spontaneous process. Regeneration study was performed by photocatalysis, and the adsorption capacity was 85.6% compared with the initial capacity after four cycles of illumination, indicating that TiO2@PEGDA could be recycled without significant loss of adsorption capacity. Consequently, TiO2@PEGDA can serve as an eco-friendly and promising material for efficiently adsorbing BPA with self-clean property.

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Adsorption performance of modified agricultural waste materials for removal of emerging micro-contaminant bisphenol A: A comprehensive review

Cited by 142 publications

References 135 publications

Amine-grafted Walnut Shell for Efficient Removal Phosphate and Nitrate from Aqueous Solution

Amine-grafted Walnut Shell for Efficient Removal Phosphate and Nitrate from Aqueous Solution

Invasive plants as biosorbents for environmental remediation: a review

Self-regeneration hybrid hydrogel for bisphenol a adsorption in water

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