Sustainable utilization metal ions of acid leaching clay wastewater to fabricate adsorbents for high-efficient removing Congo red and Methyl violet

Lu, Yushen; Duan, Fuqing; Zhu, Yongfeng; Wang, Aiqin

doi:10.1016/j.cherd.2023.05.035

Cited by 3 publications

(1 citation statement)

References 65 publications

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“…Many solid adsorbents, including clays, 15,16 porous carbon, 17,18 zeolites, 19,20 graphene oxide 21,22 and superabsorbent polymers, 23,24 have been used in the adsorption and separation of CR, and have found applications in practical wastewater purification. Compared to traditional inorganic porous materials, metal–organic frameworks (MOFs) are a novel family featuring highly porous crystalline and versatile components of metal ions and organic ligands.…”

Section: Introductionmentioning

confidence: 99%

Interface synthesis of Cu-BTC/PVDF hybrid membranes and their selective adsorption activity toward Congo red

Sun

Han

et al. 2023

Dalton Trans.

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Section: Introductionmentioning

confidence: 99%

Interface synthesis of Cu-BTC/PVDF hybrid membranes and their selective adsorption activity toward Congo red

Sun

Han

et al. 2023

Dalton Trans.

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Highly effective elimination of tetracycline and ciprofloxacin antibiotics from synthetic wastewater by novel magnetic P2W18O62/MIL-101 (Fe)/NiFe2O4 nanocomposite

Bagri,

Hassani,

Jarrah

et al. 2024

Separation and Purification Technology

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Colloid Mill-Assisted Ultrasonic-Fractional Centrifugal Purification of Low-Grade Attapulgite and Its Modification for Adsorption of Congo Red

Wang,

Jiang,

et al. 2024

Materials

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Attapulgite (APT) is widely used in wastewater treatment due to its exceptional adsorption and colloidal properties, as well as its cost-effectiveness and eco-friendliness. However, low-grade APT generally limits its performance. Here, a colloid mill-assisted ultrasonic-fractional centrifugal purification method was developed to refine low-grade APT. This process successfully separated and removed impurity minerals such as quartz and dolomite from the raw ore, resulting in a refined APT purity increase from 16.9% to 60% with a specific surface area of 135.5 m2∙g−1. Further modifying of the refined APT was carried out through the hydrothermal method using varying dosages of cetyltrimethylammonium chloride (CTAC), resulting in the production of four different APT adsorbents denoted as QAPT-n (n = CTAC mole number) ranging from 0.5 to 5 mmol. Using Congo red (CR) as the target pollutant, the QAPT-5 sample exhibited the best adsorption capacity with the maximum quantity of 1652.2 mg∙g−1 in a neutral solution at 30 °C due to the highest surface charge (zeta potential = 8.25 mV). Moreover, the QAPT-5 pellets (~2.0 g adsorbent) shaped by the alginate-assisted molding method removed more than 96% of 200 mL aqueous solution containing 200 mg∙L−1 CR and maintained this efficiency in 10 adsorption–elution cycles, which exhibited the promising practical application.

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Sustainable utilization metal ions of acid leaching clay wastewater to fabricate adsorbents for high-efficient removing Congo red and Methyl violet

Cited by 3 publications

References 65 publications

Interface synthesis of Cu-BTC/PVDF hybrid membranes and their selective adsorption activity toward Congo red

Interface synthesis of Cu-BTC/PVDF hybrid membranes and their selective adsorption activity toward Congo red

Highly effective elimination of tetracycline and ciprofloxacin antibiotics from synthetic wastewater by novel magnetic P2W18O62/MIL-101 (Fe)/NiFe2O4 nanocomposite

Colloid Mill-Assisted Ultrasonic-Fractional Centrifugal Purification of Low-Grade Attapulgite and Its Modification for Adsorption of Congo Red

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