A Novel Adsorbent Albite Modified with Cetylpyridinium Chloride for Efficient Removal of Zearalenone

Zhang, Wei; Zhang, Shihua; Wang, Jingjing; Dong, Jiawen; Cheng, Baohua; Xu, Li; Shan, Anshan

doi:10.3390/toxins11110674

Cited by 15 publications

(7 citation statements)

References 48 publications

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“…The characteristic vibrations of the starting materials and hydrothermal products were well-recorded in the FTIR spectra (Figure ). For Ab, the absorption bands at 1156, 1098, and 997 cm –1 were attributed to the Si–O stretching vibrations, and the band at 1036 cm –1 was assigned to the Si(Al)–O stretching vibration. , In the spectra of the hydrothermal products, three distinct absorption bands at 3696, 3656, and 3624 cm –1 were recorded. The two former bands were assigned to the stretching vibrations of inner surface hydroxyls in kaolinite, while the latter one was attributed to the stretching vibration of inner hydroxyls. ,, Regarding the reference sample Kaol-MM, two visible absorption bands assigned to the stretching vibrations of the inner surface hydroxyls appeared at approximately 3667 and 3656 cm –1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

“…For Ab, the absorption bands at 1156, 1098, and 997 cm −1 were attributed to the Si−O stretching vibrations, and the band at 1036 cm −1 was assigned to the Si(Al)−O stretching vibration. 35,36 In the spectra of the hydrothermal products, three distinct absorption bands at 3696, 3656, and 3624 cm −1 were recorded. The two former bands were assigned to the stretching vibrations of inner surface hydroxyls in kaolinite, while the latter one was attributed to the stretching vibration of inner hydroxyls.…”

Section: Xrd Patternsmentioning

confidence: 99%

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Transformation of Ordered Albite into Kaolinite: Implication for the “Booklet” Morphology

Liang

et al. 2022

ACS Earth Space Chem.

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Kaolinization of feldspars is widespread in various geological environments including weathering and hydrothermal environments. However, the mechanisms of such mineral transformation and kaolinite formation remain obscure. In this study, the experiments of the transformation of ordered albite into kaolinite were carried out under hydrothermal conditions to reveal the transformation mechanism involved and the formation mechanism of kaolinite aggregates with a “booklet” morphology. The obtained results demonstrated that a complete dissolution–recrystallization mechanism is responsible for the transformation process since the configurations and linkages of Al–O4 tetrahedrons in ordered albite are significantly different from those of the Al–O2(OH)4 octahedral sheets in kaolinite. During the dissolution of precursor albite, Si might be released from the structure of albite prior to Al. Subsequently, four-coordinated Al (AlIV) would be progressively converted into six-coordinated Al (AlVI) through hydration, which is beneficial to the formation of kaolinite. For albite with a large particle size, the alteration products were kaolinite aggregates with a “booklet” morphology, which were formed by the attachment of generated intermediate components of Al and Si during the dissolution of albite and subsequent crystallization of kaolinite platelets or layers stacking up to a micron height most likely along the albite cleavages. However, the crystallinity and layer stacking order of the “booklet” kaolinite aggregates were low. These findings provide insights for a better understanding of the transformation of feldspars into kaolinite and the formation of kaolinite aggregates with a “booklet” morphology under both natural and experimental conditions.

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Section: Resultsmentioning

confidence: 99%

Section: Xrd Patternsmentioning

confidence: 99%

Transformation of Ordered Albite into Kaolinite: Implication for the “Booklet” Morphology

Liang

et al. 2022

ACS Earth Space Chem.

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“…Similar observations were noted in the other studies on mycotoxin adsorption kinetics. 13,36,37 The values of the correlation coefficient (R 2 ), first-order rate constant (k a ), and concentration of AFB1 adsorbed at equilibrium (q e ) are given in Table 4. The R 2 , k a , and q e values were in the ranges of 0.9610−0.9863, 0.95−1.74 (h −1 ), and 1.75−3.03 (mg/g), respectively.…”

Section: In Vitro Afb1 Adsorption Capabilitymentioning

confidence: 99%

Effect of the Structure of Highly Porous Silica Extracted from Sugarcane Bagasse Fly Ash on Aflatoxin B1 Adsorption

et al. 2023

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Sugarcane bagasse fly ash is industrial waste produced by incinerating biomass to generate power and steam. The fly ash contains SiO2 and Al2O3, which can be used to prepare aluminosilicate. This latter material exhibits high potential as an adsorbent in various applications, including the livestock industry where issues related to contamination of aflatoxins in animal feeds need to be addressed; addition of adsorbents can help decrease the concentration of aflatoxins during feed digestion. In this study, the effect of the structure of silica prepared from sugarcane bagasse fly ash on physicochemical properties and aflatoxin B1 (AFB1) adsorption capability compared with that of bentonite was investigated. BPS-5, Xerogel-5, MCM-41, and SBA-15 mesoporous silica supports were synthesized using sodium silicate hydrate (Na2SiO3) from sugarcane bagasse fly ash as a silica source. BPS-5, Xerogel-5, MCM-41, and SBA-15 exhibited amorphous structures, while sodium silicate possessed a crystalline structure. BPS-5 possessed larger pore size, pore volume, and pore size distribution with a bimodal mesoporous structure, while Xerogel-5 exhibited lower pore size and pore size distribution with a unimodal mesoporous structure. BPS-5 with a negatively charged surface exhibited the highest AFB1 adsorption capability compared with other porous silica. However, the AFB1 adsorption capability of bentonite was superior to those of all porous silica. Sufficient pore diameter with high total pore volume as well as high intensity of acid sites and negative charge on the surface of the adsorbent is required to increase AFB1 adsorption in the in vitro gastrointestinal tract of animals.

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“…Two strong vibrational peaks at 925 and 881 cm -1 in the DRD spectrum might have resulted from the OH liberation mode associated with octahedral Al-OH groups in beidellite structure (Farmer, 1974;Kloprogge and Frost, 1999). The peak centered at 520 cm -1 might be presenting the coupling between the O-Si-O deformation and the Na-O stretching due to albite in DRD (Dowty, 1987;Zhang et al, 2019). The vibrational peak at 1101 cm -1 might have derived from asymmetric stretching of Si-O-Si of albite or cristobalite while at 459 cm -1 due to Si-O bending of quartz (Mollah et al, 1992;Ojima, 2003).…”

Section: A C C E P T E D Mmentioning

confidence: 99%

Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh

Alam

Mohiuddin

2023

Aerosol Air Qual. Res.

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Industrial dust generation from material processing is an uninterrupted phenomenon, hence analyzing materials of dust origin with dust particles is important to comprehend the entire scenario of occupational health exposure (OHE). In this study, we investigated the morphological, elemental, and mineralogical characteristics of engendered dust and materials of dust origin in the cement industry (CI) in Bangladesh. The dust samples were accumulated from dust collectors and the internal roadways of the CI to understand the nature of atmospheric dust of the CI. All the materials that could potentially be the sources of the dust of the CI were collected, including clinker, gypsum, limestone, fly ash, slag, and two types of cement products. Scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDS), x-ray powder diffraction (XRD), and fourier-transform infrared spectroscopy (FTIR) were performed for the characterization. SEM micrographs showed the presence of fine (particles ≤ PM 2.5) and ultra-fine (particles ≤ PM 0.1) particles with diverse morphology in the studied samples. Ca, Si, Al, Mg, Fe, K, Na, Mo, and Ti were found as existing metallic elements in samples through the EDS technique. Several minerals of silicate, oxide, carbonate, and sulfate were detected with major crystalline phases of Portland cement by SEM-EDS, XRD, and FTIR analyses in samples; among which some are well documented as occupational hazards. The trace presence of organic carbon was observed in all FTIR spectra. The most significant outcome of this study is the detection of carcinogenic substances such as crystalline silica (quartz, cristobalite) and asbestoses (anthophyllite, chrysotile, and crocidolite) in samples. For instance, quartz was found in the dust of dust collectors while road dust of the CI showed the existence of both quartz and cristobalite. However, asbestoses were found only in source materials, but they could be released anytime during material handling, thus creating OHE.

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A Novel Adsorbent Albite Modified with Cetylpyridinium Chloride for Efficient Removal of Zearalenone

Cited by 15 publications

References 48 publications

Transformation of Ordered Albite into Kaolinite: Implication for the “Booklet” Morphology

Transformation of Ordered Albite into Kaolinite: Implication for the “Booklet” Morphology

Effect of the Structure of Highly Porous Silica Extracted from Sugarcane Bagasse Fly Ash on Aflatoxin B1 Adsorption

Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh

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