Cellulose particles capture aldehyde VOC pollutants

Bravo, Isaac; Figueroa, Freddy; Swasy, Maria I.; Attia, Mohamed F.; Ateia, Mohamed; Encalada, Domenica; Vizuete, Karla; Galeas, Salomé; Guerrero, V.H.; Debut, Alexis; Whitehead, Daniel C.; Alexis, Frank

doi:10.1039/d0ra00414f

Cited by 14 publications

(16 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the peaks in the range of 2 θ = 15–18° characterize the samples amorphous region. Bravo et al and Xu et al [ 80,85 ] reported similar results. In the DAC XRD pattern (Figure 4b); both peak intensity and crystallinity index increased compared to those of (MCC).…”

Section: Resultssupporting

confidence: 55%

“…As mentioned in our recent works, [ 12,13,15 ] the FTIR spectrum of (MCC) (a) illustrated in Figure 3a exhibits characteristic peaks: C–O–C glycosidic ether bands at 1105 cm −1 , CH 2 rocking vibrations at 1315 cm −1 , OH stretching frequencies at 3200 cm −1 , and C–C ring breathing at 1053 cm −1. [ [ 15,80 ] ] In addition, the methylene group stretching was observed at 2900 cm −1 and water molecule presence at 1648 cm −1 . [ 13 ] As it is well known, the periodate oxidation reaction led to a specific cleavage of the C2—C3 bond in (MCC), resulting in the generation of active aldehyde groups in the polymeric chain.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

New sonochemical magnetite nanoparticles functionalization approach of dithiooxamide–formaldehyde developed cellulose: From easy synthesis to recyclable 4‐nitrophenol reduction

Mehdaoui

Agren

Dhahri

et al. 2021

Applied Organom Chemis

View full text Add to dashboard Cite

Magnetic [FA‐c‐(C‐DTX)@Fe3O4] nanocomposites have been prepared with a four‐step technique involving three mechanical stirring conventional steps to obtain [(FA‐c‐(DTX‐g‐DAC)] and an ultrasound‐assisted Fe3O4 coating approach to fabricate [FA‐c‐(C‐DTX)@Fe3O4]. Magnetic nanoparticles (NPs) (Fe3O4 NPs) synthesis and integration has been easily and rapidly approached under novel environmentally friendly optimized reaction conditions: an ethanol–water solution, one iron precursor use, short reaction time, low temperature, and an ultrasonic irradiation process. This new condition's unique combination is attributed to our new synthesis procedure. Sonochemically synthetisized [FA‐c‐(C‐DTX)@Fe3O4] were easily separated from the reaction mixture simply via external magnetic field application, and therefore, neither filtration nor centrifigation was required. The synthetisized samples have been investigated by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, X‐ray photoelectron spectroscopy (XPS), X‐ray diffraction (XRD), thermogravimetry analysis (TGA), scanning electron microscopy (SEM), and vibrating‐sample magnetometry (VSM). Obtained outcomes including successful magnetite coating process, good crystallinity, homogenous morphology, enhanced thermal stability, and obvious magnetic properties suggested the potential of sonochemical procedure to fabricate and integrate magnetic NPs. This sonochemically synthesized catalyst was evaluated toward the reduction of the organic pollutant 4‐nitrophenol and showed excellent catalytic activity. This ultrasound‐assisted nanocomposites preparation is simply scalable to meet industrial application.

show abstract

Section: Resultssupporting

confidence: 55%

Section: Resultsmentioning

confidence: 99%

New sonochemical magnetite nanoparticles functionalization approach of dithiooxamide–formaldehyde developed cellulose: From easy synthesis to recyclable 4‐nitrophenol reduction

Mehdaoui

Agren

Dhahri

et al. 2021

Applied Organom Chemis

View full text Add to dashboard Cite

show abstract

“…However, the results show that BC has the lowest crystallinity index of 44.1% compared to both commercial celluloses. This may be due to the different source of cellulose that can affect the crystallinity index or the extraction process [ 27 ]. It is expected that the crystallinity of the excipient could affect the properties of the tablet.…”

Section: Discussionmentioning

confidence: 99%

Microcrystalline Cellulose Extracted from Native Plants as an Excipient for Solid Dosage Formulations in Drug Delivery

et al. 2020

Self Cite

View full text Add to dashboard Cite

Excipients represent the complement of the active principle in any pharmaceutical form. Their function is to provide stability, protection, and to ensure absorption of the drug and acceptability in patients. Cellulose is a conventional excipient in many pharmaceutical solid dosage products. Most of the sources used to extract microcrystalline cellulose come from cotton or wood, which are expensive and in high demand from other industries. As plants are considered the main source of excipient production, we have taken advantage of the biodiversity of Ecuador to evaluate microcrystalline cellulose extracted from borojó (Alibertia patinoi), a native plant, as an excipient for solid dosage formulations. The method of choice for tablet manufacturing was direct compression since it is a conventional fabrication method in the pharmaceutical industry. First, we performed scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) in order to compare the structure and characteristics of the extracted cellulose with two reference commercial cellulose materials. Second, we performed quality tests to evaluate the use of the isolate as an excipient including fluidity, hardness, friability, and disintegration. Compared with commercial and microcrystalline cellulose, the extracted cellulose from the native plant showed comparable characteristics and is consequently a potential excipient that could be used in the pharmaceutical industry. Last, we performed a dissolution test in which we concluded that all tablets have a short release time of active principle.

show abstract

“…Using innovative materials such as cellulose particles [29], graphene-based nanomaterials and zeolite [30] with high VOC adsorbent capacity represents another approach for gas pollutant removal. These types of adsorbents can reduce their capacity when they reach the saturation point or the adsorption equilibrium.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Activity of Cu2S/WO3 and Cu2S/SnO2 Heterostructures for Indoor Air Treatment

Eneşca

Isac

2021

Materials

View full text Add to dashboard Cite

Volatile organic compounds (VOCs) are commonly found in indoor spaces (e.g., homes or offices) and are often related to various illnesses, some of them with carcinogenic potential. The origins of VOC release in the indoor environment are in office products, building materials, electronics, cleaning products, furniture, and maintenance products. VOC removal can be done based on two types of technologies: adsorption in specific materials and decomposition via oxidative processes. The present article reports the development and photocatalytic activity of two heterostructures (Cu2S/WO3 and Cu2S/SnO2) used for indoor air decontamination. The acetaldehyde removal rate is discussed in correlation with the S-scheme mechanisms established between the heterostructure components but also comparatively with the bare catalysts’ activity. Acetaldehyde was considered as a VOC reference because it was found by the International Agency for Research on Cancer to be one of the most frequent air toxins with potential carcinogenic effects. The samples contained monoclinic WO3, tetragonal SnO2, and orthorhombic Cu2S crystalline structures. The Cu2S crystallite size in the heterostructure varied from 75.9 to 82.4 Å, depending on the metal oxide substrate. The highest photocatalytic efficiency (75.7%) corresponded to Cu2S/SnO2, with a constant rate of 0.106 s−1 (which was three times faster than WO3 or SnO2 and seven and a half times faster than Cu2S).

show abstract

Cellulose particles capture aldehyde VOC pollutants

Abstract: Cellulose particles isolated from biodiverse sources are capable of capturing aldehyde VOCs.

Cited by 14 publications

References 51 publications

New sonochemical magnetite nanoparticles functionalization approach of dithiooxamide–formaldehyde developed cellulose: From easy synthesis to recyclable 4‐nitrophenol reduction

New sonochemical magnetite nanoparticles functionalization approach of dithiooxamide–formaldehyde developed cellulose: From easy synthesis to recyclable 4‐nitrophenol reduction

Microcrystalline Cellulose Extracted from Native Plants as an Excipient for Solid Dosage Formulations in Drug Delivery

Photocatalytic Activity of Cu2S/WO3 and Cu2S/SnO2 Heterostructures for Indoor Air Treatment

Contact Info

Product

Resources

About