Construction of a hetero-junction recyclable composite photocatalyst from aluminum-based waste/magnetite for efficient carbamate insecticide oxidation

Thabet, Rahma H.; Fouad, Mai K.; Sherbiny, Shakinaz A. El; Tony, Maha A.

doi:10.1039/d2ew00339b

Cited by 4 publications

(9 citation statements)

References 86 publications

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“…Additionally, the band at 695 cm −1 is related to the Al-O-Si bond [35]. There is also a band at 800 cm −1 , which is assigned to the weak deformation bond of Al-Mg-OH [33]. The presence of Si-O-Fe is indicated by the intensities in the range of 554-557 cm −1 .…”

Section: Ftirmentioning

confidence: 97%

“…In Figure 5, the observed bands at approximately 1427, 1631 and 3427 cm −1 can be attributed to the stretching vibrations of C-O, C=C and O-H, respectively. Notably, the intense band at 1088 cm −1 corresponds to the asymmetric stretching of Si-O-Si bonds in SiO2, indicating the motion of oxygen in the Si-O-Si anisometric stretch [33]. Additionally, the band at 695 cm −1 is related to the Al-O-Si bond [35].…”

Section: Ftirmentioning

confidence: 98%

“…The excess water was decanted and the air-dried sludge cake was used as the main component to produce the AlS-M composite. Thereafter, the magnetite was simply prepared by using the co-precipitation technique; the procedure is illustrated elsewhere [32,33]. The nanoparticles of the magnetite were prepared by mixing Fe 2 (SO 4 ) 3 and Fe(SO 4 ) in stoichiometric ratios using distilled water, with NaOH used in a drop-wise manner to elevate the pH while heating was applied.…”

Section: Vfcw Systemmentioning

confidence: 99%

“…Thus, a shorter adsorption time is attained with a temperature increase. Furthermore, the temperature increase improves the available active sites of the alum sludge surface, allowing for extra insecticide molecules to be adsorbed on the composite surface [33].…”

Section: Effect Of Temperaturementioning

confidence: 99%

“…The following two isotherm models in Equations ( 3) and ( 4) were used to describe DuPont 1179 on the adsorption column. The linearized forms of the Langmuir (Equation ( 3)) and Freundlich (Equation ( 4)) models [33] were applied to analyze the isotherm results, where K L and K F are the Langmuir and Freundlich constants, respectively. Meanwhile, q e is the equilibrium adsorption capacity, a L is the constant related to the Langmuir model, and 1/n signifies the heterogeneity constant of the Freundlich model.…”

Section: Kinetic Investigationmentioning

confidence: 99%

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A Glance at a Sustainable Solution Using Vertical Constructed Wetland Based on Dewatered Drinking-Water Waste Augmented Nanoparticle Composite Substrate for Wastewater Treatment

Nabwey,

Tony

2023

Processes

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The current investigation introduces and demonstrates a credible, economically sound system to remove agrochemical runoff using a vertical flow constructed wetland (VFCW). DuPont 1179 carbamate insecticide was applied as a simulating greenhouse crop production controller, which resulted in runoff loaded with DuPont 1179. A novel composite of constructed wetland from an alum sludge conjugate magnetite nanoparticle substrate was applied and supported with gravel as a filtration/adsorption bed in a vertical flow constructed wetland (VFCW) system. X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM) augmented with energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR) were employed to characterize the suggested composite substrate. The experimental data showed VFCW to be significant in eliminating DuPont 1179. The isotherm time was explored at 300 min, which corresponded to complete insecticide removal (100%). The operational parameters were located at the natural pH (6.9) of the solution and room temperature (25 °C). The VFCW column was also investigated at various substrate concentrations ranging from 100% to 40% of the composite material supported by a gravel medium, and the existence of composite at a 75% concentration showed the highest yield. The experimental data verified that the adsorption followed the pseudo second-order adsorption kinetic model. Furthermore, according to the isotherm model results, the scheme followed the Langmuir isotherm model. Thus, the presented study is a promising indicator of the possibility of using alum sludge conjugate nanoparticles for the elimination of agrochemicals from wastewater.

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Section: Ftirmentioning

confidence: 97%

Section: Ftirmentioning

confidence: 98%

Section: Vfcw Systemmentioning

confidence: 99%

Section: Effect Of Temperaturementioning

confidence: 99%

Section: Kinetic Investigationmentioning

confidence: 99%

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A Glance at a Sustainable Solution Using Vertical Constructed Wetland Based on Dewatered Drinking-Water Waste Augmented Nanoparticle Composite Substrate for Wastewater Treatment

Nabwey,

Tony

2023

Processes

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Using waste silver metal in synthesis of Z-scheme Ag@WO3-CeO2 heterojunction to increase photodegradation and electrochemical performances

Ghamarpoor

Fallah

Jamshidi

et al. 2023

Journal of Industrial and Engineering Chemistry

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Efficient augmentation of superparamagnetic ferrite with alum sludge as a sustainable nanoadsorbent matrix for promoting dye removal: preparation, characterization and application

Mangood,

Salama,

El-Sayed

et al. 2024

Preprint

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Alum sludge is produced in massive amounts through the process of water-works due to the use of aluminum sulphate as a coagulant. The possibility of twining cadmium sliver ferrites named CdAgF and cadmium cupper ferrites named CdCuF fabricated by a simple co-precipitation route with alum sludge (AS) based waste is accompanied. The prepared ferrite materials are mixed in a 50 % proportions with a modified AS (AS400) and labeled as AS400F-CdCu and AS400F-CdAgand introduced as adsorbent material. The surface functionalities, structure and morphology of the prepared adsorbents are evaluated via scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and Brunauer–Emmett–Teller (BET) surface area analysis. The prepared composites are applied in the removal of two types of dyes from wastewater stream as a simulated textile effluent named Synozol dyes Red K‑HL and Synozol dyes Blue K‑HL. Initially, the isotherm time is located at 1 h of contact time. Then, the adsorption parameters are investigated and the optimal operational parameters are recorded at natural pH of the aqueous effluent (7.0) and the economic adsorbent dose used is 1 g/L. the dye concentration is evaluated and the studied range (20-100 mg/L) reported that increasing the dye concentration increasing the adsorption capacity. Thermal effect has a negative behavior on the adsorption capacity. Langmuir and Freundlich isotherm models are evaluated to check the experimental data and the results are best fitted with Langmuir model for the both dyes. The greatest monolayer adsorption capacity is associated to CdAgF and its composite form AS400-CdAgF that is recorded as 149.031 and 102.564 mg/g, respectively for KHL Red dye and 79.744 and 32.414, respectively for KHL Blue dye. Also, the kinetic model is investigated and the data is following pseudo-second-order kinetic model. Finally, the recyclability of the catalyst showed its effectiveness for sustainable use.

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Construction of a hetero-junction recyclable composite photocatalyst from aluminum-based waste/magnetite for efficient carbamate insecticide oxidation

Abstract: Twinned aluminum-based waste namely alum sludge (AS) residuals augmented with environmentally prepared magnetite, Fe3O4, nanoparticles (M) has been confirmed to exhibit higher performance than pristine single-phase alum sludge photocatalyst or...

Cited by 4 publications

References 86 publications

A Glance at a Sustainable Solution Using Vertical Constructed Wetland Based on Dewatered Drinking-Water Waste Augmented Nanoparticle Composite Substrate for Wastewater Treatment

A Glance at a Sustainable Solution Using Vertical Constructed Wetland Based on Dewatered Drinking-Water Waste Augmented Nanoparticle Composite Substrate for Wastewater Treatment

Using waste silver metal in synthesis of Z-scheme Ag@WO3-CeO2 heterojunction to increase photodegradation and electrochemical performances

Efficient augmentation of superparamagnetic ferrite with alum sludge as a sustainable nanoadsorbent matrix for promoting dye removal: preparation, characterization and application

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