Adsorption property and mechanism of polyacrylate-divinylbenzene microspheres for removal of trace organic micropollutants from water

Gong, Yingxu; Chen, Zhonglin; Bi, Lanbo; Kang, Jing; Zhang, Xiaoxiao; Zhao, Shengxin; Wu, Yining; Tong, Yanbin; Shen, Jimin

doi:10.1016/j.scitotenv.2021.146635

Cited by 21 publications

(6 citation statements)

References 31 publications

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“…The infrared spectra of PIL-TEA before and after adsorption are shown in Figure b. The peaks at 1454, 1492, and 1602 cm –1 are accredited due to CC stretching vibration of aromatic hydrocarbons. Meanwhile, the peak at 3030 cm –1 is a C–H stretching vibration unique to the aromatic ring .…”

Section: Resultsmentioning

confidence: 99%

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Selective and Efficient Platinum Group Metal Adsorption from Wastewater by Localized Triethylamine-Based Poly(Ionic Liquid)

Zhang,

Huang

et al. 2023

ACS EST Water

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With environmental problems and resource scarcity, it is urgent to recover Platinum Group Metals (PGMs) from wastewater. In this study, poly(styrene-triethylammonium cation) (PIL-TEA) was synthesized, characterized, and used as adsorbent for Pt(II), Pt(IV), and Ir(IV) in both synthetic and real wastewater. Various isotherm and kinetic models were employed to analyze the adsorption process, revealing that it involves chemisorption, with internal diffusion being the crucial step. The different adsorption performances of PGMs can be attributed to factors such as electrostatic interaction, weak bonding, configuration, and electrostatic potential (ESP) between anions and cations. Notably, ESP complementarity dictates the actual adsorption performance order: Pt(II) > Pt(IV) > Ir(IV). The higher the degree of ESP complementarity, the stronger the adsorption tendency. Furthermore, the study reveals that localized triethylammonium exhibits remarkable adsorption efficiency for trace PGMs in wastewater, with adsorption capacities reaching 1.615, 1.354, and 1.010 mmol/g for Pt(II), Pt(IV), and Ir(IV) respectively. Overall, this research demonstrates the excellent adsorption performance of PIL-TEA for recovering PGMs from wastewater thanks to its exceptional ability to resist miscellaneous ion interference. It also provides valuable insights into the relationship between the adsorption performance and the structure− property interplay in wastewater.

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Section: Resultsmentioning

confidence: 99%

“…The ESP of each ion pair was calculated using a PWPB95 functional under a def2-TZVPP base set by ORCA software. 27 The calculations used Gaussian 09, and the geometries of cation-PtCl 4…”

Section: Column Experimentmentioning

confidence: 99%

Selective and Efficient Platinum Group Metal Adsorption from Wastewater by Localized Triethylamine-Based Poly(Ionic Liquid)

Zhang,

Huang

et al. 2023

ACS EST Water

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“…When these aromatic rings come into close proximity, they can form p-p stacking complexes, creating a strong attractive force during the adsorption process. 46,47 Furthermore, this interaction can facilitate the formation of hydrogen bonds. 48 EDC molecules also have the potential to form hydrogen bonds with MAA present in the adsorber particles.…”

Section: Membrane Characterizationmentioning

confidence: 99%

Enhanced EDC removal from water through electron beam-mediated adsorber particle integration in microfiltration membranes

Niavarani,

Breite,

Ulutaş

et al. 2023

RSC Adv.

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“…Because these contaminants can float on the water surface, they can reduce light penetration into the water, thus hindering photosynthesis by phytoplankton; more importantly, some of these compounds are toxic and even carcinogenic to organisms . Several techniques have been used for organic dye removal, including photocatalytic degradation, membrane filtration, electrolysis, and adsorption . Of these techniques, adsorption is considered as the most promising because of its low cost and operational simplicity .…”

Section: Introductionmentioning

confidence: 99%

“…3 Several techniques have been used for organic dye removal, including photocatalytic degradation, 4 membrane filtration, 5 electrolysis, 6 and adsorption. 7 Of these techniques, adsorption is considered as the most promising because of its low cost and operational simplicity. 8 Adsorbents used for this purpose include activated carbon, polymer gels, natural biomass, inorganic nanomaterials, and metal−organic frameworks (MOFs).…”

Section: ■ Introductionmentioning

confidence: 99%

Novel Porous Rhodium Metal–Organic Aerogel for Efficient Removal of Organic Dyes and Catalysis of Si–H Insertion Reactions

You

2021

ACS Omega

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Metal−organic gels (MOGs) are attracting increasing attention for removal of organic dyes from aqueous solution and for catalysis of Si−H insertion reactions. Herein, we report that a reaction of porphyrin derivative 1 with Rh 2 (OAc) 4 generates stable metal−organic gels and subsequent subcritical carbon dioxide drying affords metal−organic aerogels. Owing to their micro-and mesoporosity, the aerogels adsorbed dyes. Moreover, aerogel I catalyzed Si−H insertion reactions to give organosilicon compounds in high yields.

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Adsorption property and mechanism of polyacrylate-divinylbenzene microspheres for removal of trace organic micropollutants from water

Cited by 21 publications

References 31 publications

Selective and Efficient Platinum Group Metal Adsorption from Wastewater by Localized Triethylamine-Based Poly(Ionic Liquid)

Selective and Efficient Platinum Group Metal Adsorption from Wastewater by Localized Triethylamine-Based Poly(Ionic Liquid)

Enhanced EDC removal from water through electron beam-mediated adsorber particle integration in microfiltration membranes

Novel Porous Rhodium Metal–Organic Aerogel for Efficient Removal of Organic Dyes and Catalysis of Si–H Insertion Reactions

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