The effective adsorption of arsenic from polluted water using modified Halloysite nanoclay

Aljohani, Naif S.; Kavil, Yasar N.; Al-Farawati, Radwan; Alelyani, Saeed Saad; Orif, Mohamed I.; Shaban, Yasser A.; Al-Mhyawi, Saedah R.; Aljuhani, Enas; Salam, Mohamed Abdel

doi:10.1016/j.arabjc.2023.104652

Cited by 20 publications

(7 citation statements)

References 69 publications

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“…XRD diffractograms of the DPSM‐Control and HS‐loaded nanocomposites are shown in Figure 4. For HS, a few crystalline peaks at 2θ values of 11.8°, 19.84°, 24.53°, 35.01°, 36.68° and 38.05°, corresponding to the reflection planes (0 0 1), (1 1 0), (0 0 2), (1 2 2), (2 0 0) and (1 3 1), have been reported in the literature 46,47 . All the prepared films, however, demonstrated a major diffraction peak at 2θ of ~24°.…”

Section: Resultsmentioning

confidence: 76%

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Development and characterization of defatted pumpkin seed meal and halloysite nanoclay composite films for food packaging

Kumar,

Santhosh,

Hoque

et al. 2023

Packag Technol Sci

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The valorization of agricultural by-products into sustainable packaging materials is one of the best strategies to utilize industrial waste efficiently. In this study, defatted pumpkin seed meal (DPSM) has been converted into films by impregnating selected concentrations of halloysite (HS) nanoclay (1%, 2% and 3% w/w). Various analytical techniques, including scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and barrier property measurements, were employed to characterize the developed films. The appearance of the roughness on the surface of the films was evident from SEM micrographs upon the addition of HS. No change in the crystallinity of DPSM occurred when HS was incorporated; however, the T g showed a variation with the loading concentration of the clay. Fourier transform infrared spectroscopy (FTIR) spectroscopy indicated that the decrease in hydrogen bonding was associated with increasing the HS concentrations. The addition of HS improved the tensile strength, stress relaxation percentage and Young's modulus, while the elongation at break was reduced at a similar condition. The biodegradability of the film was excellent within 20 days of the burying period. Overall, the developed films could be a potential candidate for sustainable food packaging.

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Section: Resultsmentioning

confidence: 76%

“…28 Interestingly, the DPSM films with 2% HS nanoclays showed the least peak area, that is, 185.17 and (1 3 1), have been reported in the literature. 46,47 All the prepared films, however, demonstrated a major diffraction peak at 2θ of $24 .…”

Section: Ftirmentioning

confidence: 98%

Development and characterization of defatted pumpkin seed meal and halloysite nanoclay composite films for food packaging

Kumar,

Santhosh,

Hoque

et al. 2023

Packag Technol Sci

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“…The diffraction peak at 2θ = 29.9 • was assigned to (011) of the silica oxide (SiO 2 ) phase (JCPDS file 01-081-0069). The XRD peaks of the treated-DD3 (Figure 1b) showed a significant increase in intensity, indicating a rise in the clay minerals' crystallinity [56,57,59]. This may be due to the removal of the amorphous layer by the acid, which allowed the X-ray beam to directly access both the octahedral and tetrahedral sites.…”

Section: Statistical Evaluation Criteriamentioning

confidence: 99%

Enhanced Adsorption Capacity of Methylene Blue Dye onto Kaolin through Acid Treatment: Batch Adsorption and Machine Learning Studies

Hamri,

Imessaoudene,

Hadadi

et al. 2024

Water

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Algerian kaolinite, sourced from Djebel Debbagh nuance 3 (DD3), was used as a low-cost adsorbent to remove methylene blue (MB) dye from water. Its adsorption capacity was enhanced through sulfuric acid treatment (treated-DD3). In response to the urgent demand for clean water, various technologies have been developed to address dye removal from wastewater. This study, specifically delving into the treatment of textile wastewater, examined the efficacy of treated-DD3 through adsorption processes. The acid treatment increased the surface area and pore volume of DD3. X-ray diffraction showed crystalline phases in both, with treated-DD3 having higher crystallinity. Fourier-transform infrared spectroscopy found no significant differences post-acid treatment. Scanning electron microscopy revealed DD3 had large, stacked particles with low surface area, while treated-DD3 had increased porosity and a smoother surface. Various parameters affecting MB adsorption were studied. The Langmuir and Freundlich models were used for isotherm parameters. Treated-DD3 exhibited a higher MB adsorption capacity (64.58 mg/g according to the Langmuir model) than DD3 (44.48 mg/g). Thermodynamic analysis indicated spontaneous and endothermic MB adsorption onto both DD3-BM and treated-DD3-BM systems under different pH conditions. Treated-DD3 effectively reduced chemical oxygen demand (from 304.056 mg/L to 34.44 mg/L) and biological oxygen demand (from 80 mg/L to 20 mg/L) in real textile wastewater. The adsorbent exhibited rapid removal and decolorization, surpassing 93% within the first 7 min of the experiment. The Gaussian process regression and particle swarm optimization (GPR–PSO) predicted MB adsorption capacity effectively (R = 0.9989, R2 = 0.9978, adj-R2 = 0.9978, RMSE = 1.1390, and MAE = 0.3926).

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“…Có nhiều vật liệu hấp phụ khác nhau được sử dụng cho việc loại bỏ, thu hồi REE nói chung và La nói riêng ra khỏi các dung dịch nước như: vật liệu sinh học (mai cua, càng tôm, vảy cá, vỏ trứng, mùn cưa, ngô, vỏ cam) [4], Montmorillonit [5], kaolinit [6,7], polyme [8], COFs (covalent organic frameworks) [9], cacbon nitrua từ tính [10], titan phốtphat dạng khối xốp [11], axit iminodisuccinic [12],... Hiệu quả hấp phụ tăng lên đáng kể khi vật liệu hấp phụ có kích thước nano [1,13,14].…”

Section: Giới Thiệu Chungunclassified

“…Trong những năm gần đây, do có những đặc tính ưu việt như cấu trúc siêu nhỏ dạng ống, không độc, độ bền cơ học cao, … và có giá thành rẻ hơn so với nano cacbon dạng ống nên HAL được các nhà khoa học quan tâm và áp dụng nhiều trong các lĩnh vực ứng dụng khác nhau như trong dược phẩm, y học, thực phẩm, vật liệu cao cấp, nông nghiệp và môi trường [15,16]. Haloysit là một loại vật liệu hấp phụ tiềm năng với giá thành rẻ và có hiệu quả trong việc loại bỏ các ion kim loại nặng và hợp chất hữu cơ gây ô nhiễm [13,14,17,18].…”

Section: Giới Thiệu Chungunclassified

Adsorption properties of nanotube type halloysite clay mineral for La3+ ions

Le Thi Phuong Thao,

Vo Thi Hanh,

Bui Hoang Bac

et al. 2024

Vietnam j. catal. adsorp.

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This paper presents the results of research on the adsorption capacity of La3+ ions from aqueous solution of nanotube-type halloysite. The influence of operational conditions such as contact time, initial concentration of La3+, initial pH of solution, halloysite mass and temperature on the adsorption of La3+ had also been examined. The results show that the optimal efficiency and adsorption capacity of La3+ reached 90.19% and 3.76 mg/g in the suitable conditions: haloysite mass 0.6 g/50 mL solution, initial La3+ ion concentration 50 mg/L, pH 5.8, contact time 60 minutes at room temperature (25oC). The adsorption isotherm was studied based on both Langmuir and Freundlich models. The adsorption kinetics were studied by both pseudo-first-order and pseudo-second-order kinetic models. These results open up prospects for the application of haloysite clay minerals to remove and recover La in polluted water.

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The effective adsorption of arsenic from polluted water using modified Halloysite nanoclay

Cited by 20 publications

References 69 publications

Development and characterization of defatted pumpkin seed meal and halloysite nanoclay composite films for food packaging

Development and characterization of defatted pumpkin seed meal and halloysite nanoclay composite films for food packaging

Enhanced Adsorption Capacity of Methylene Blue Dye onto Kaolin through Acid Treatment: Batch Adsorption and Machine Learning Studies

Adsorption properties of nanotube type halloysite clay mineral for La3+ ions

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