Research on the Water Absorption Diffusion Model and Kinetics of Pretreated Straw DOI Creative Commons

Lei Song,

Yuanna Li,

Tingzhou Lei

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 25, 2024

Abstract To study the water absorption characteristics of corn, rice, and wheat straw after low-temperature pretreatment (120 ~ 200°C). This work introduces an internal particle diffusion model for moisture adsorption mechanism measures contact angle to assess hydrophobicity, establishing a linear relationship between kinetic parameters temperature. The results show that when temperature rises 200°C, hygroscopicity reduction extent corn straw, rice are 58.45%, 28.32% 12.12%, respectively, significant increase in hydrophobicity. three-stage equation can effectively describe process moisture. At 70% humidity, rate constant decreased boundary layer thickness increased. ASABE accurately predict content straw; conforms Peleg equation, which is subsequent large-scale high-quality utilization straw.

Language: Английский

Adsorptive removal of arsenic from drinking water using KOH-modified sewage sludge-derived biochar DOI Creative Commons
Ahsan Shah, Arun Arjunan, Anusha Thumma

et al.

Cleaner Water, Journal Year: 2024, Volume and Issue: 2, P. 100022 - 100022

Published: June 18, 2024

This paper reveals a green chemistry approach to remove arsenic (As+3) from water using potassium hydroxide (KOH) modified sewage sludge-derived biochar (SSDB-KOH). Characterisation of the morphology, particle size and composition SSDB-KOH pre- post-adsorption confirmed porous heterogenous surface favouring adsorption. At ambient temperature (20 °C), dose 20 g/l achieved 98 % arsenite removal at nearly neutral solution pH (8). compared favourably with pristine SSDB, where performance was limited 41.6 removal. The enhanced adsorption informed by several mechanisms, including ionic interactions, pore filling metal-pi interactions. experimental data fits closely Langmuir isotherm pseudo-second-order kinetic models, revealing monolayer chemical interaction between adsorbents adsorbate. spontaneous endothermic nature process negative value ΔG positive ΔH, respectively. evaluated for four-cycle regeneration. Finally, cost analysis performed demonstrate economic feasibility water.

Language: Английский

Citations

16
Sequential novel use of Moringa oleifera Lam., biochar, and sand to remove turbidity, E. coli, and heavy metals from drinking water DOI Creative Commons
Ahsan Shah, Arun Arjunan, Georgina Manning

et al.

Cleaner Water, Journal Year: 2024, Volume and Issue: unknown, P. 100050 - 100050

Published: Oct. 1, 2024

Language: Английский

Citations

11
Synthesis and characterisation of novel beta-cyclodextrin based Fe 3 O 4 nanocomposite: adsorption behaviour and photocatalytic dye degradation studies DOI
Bablu Singh, Poorn Prakash Pande,

Arbind Chaurasiya

et al.

International Journal of Environmental & Analytical Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 26

Published: July 5, 2024

Novel Beta-Cyclodextrin-based Fe3O4 nanocomposite has been synthesised through copolymerisation by incorporating nanoparticles into the polymer matrix. Ultraviolet-Visible (UV-Visible) spectroscopy, Fourier transform infrared (FTIR) Thermogravimetric (TGA) analysis, Point of Zero Charge, X-ray diffraction (XRD), and Scanning electron microscopy (SEM) analysis have used to characterise Nanoparticles β-CDHs@Fe3O4 nanocomposite. The utilised for adsorption methylene blue (MB) dye from aqueous solutions. maximum percentage removal MB at optimum pH 7 was found be 98.51%. capacity (qe) 268.09 mg/g dosages 1.2 g/L, 7, temperature 25°C, concentration 100 mg/L an agitation speed 200 rpm. Adsorption data fitted with three isotherm models namely Langmuir, Freundlich, Temkin, it best fit Langmuir model. Kinetic studies like pseudo-first order, pseudo-second intra-particle diffusion model were also performed study mechanism. Further, thermodynamic demonstrate that reaction exothermic spontaneous. Photocatalytic degradation under visible light studied, 79.01% observed. Also, desorption performed, reusable up 5 times 90% dye-desorption in fifth cycle.

Language: Английский

Citations

10
Transforming waste polyethylene terephthalate (PET) into high-performance activated carbon-supported composites for pollutant degradation: A synergy of experiments and DFT insights DOI
Komal Poonia,

Sonu Sonu,

Pardeep Singh

et al.

Carbon, Journal Year: 2025, Volume and Issue: 234, P. 120001 - 120001

Published: Jan. 9, 2025

Language: Английский

Citations

1
ANN-assisted comprehensive screening of silica gel-alunite composite sorbent system for efficient adsorption of toxic nickel ions: Batch and continuous mode water treatment applications DOI
Sibel Tunali Akar,

Suzan Rüstemoğlu,

Serpil TÜRKYILMAZ

et al.

Chemosphere, Journal Year: 2025, Volume and Issue: 373, P. 144127 - 144127

Published: Jan. 31, 2025

Language: Английский

Citations

1
Synthesis of Copper-Impregnated MCM-41 from Synthetic and Rice Husk-Derived Silica for Efficient Adsorption of Levofloxacin: A Machine Learning Approach DOI

Gayatri Rajput,

Vijayalakshmi Gosu, Verraboina Subbaramaiah

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115634 - 115634

Published: Jan. 1, 2025

Language: Английский

Citations

1
Magnetic Hybrid Chitin-Horse Manure Humic Acid for Optimized Cd(II) and Pb(II) Adsorption from Aquatic Environment DOI Creative Commons
Basuki Rahmat, Yusuf Bramastya Apriliyanto, Elva Stiawan

et al.

Case Studies in Chemical and Environmental Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 101138 - 101138

Published: Feb. 1, 2025

Language: Английский

Citations

1
A crossbred mesoporous composite of Ni0.15-doped Zn0.85S @ alginate-derived graphitic carbon beads for methylene blue removal: DFT and machine learning investigations DOI
Mahmoud Thabet, Eman M. Abd El-Monaem, Mohamed A. Abdel‐Lateef

et al.

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114043 - 114043

Published: Feb. 1, 2025

Language: Английский

Citations

1
Multilayer adsorption of reactive orange 16 dye onto Fe2O3/ZnO hybrid nanoadsorbent: mechanistic insights from kinetics, isotherms and dynamic light scattering studies DOI

Nasira Hussain,

Muhammad Asif,

Shanza Shafaat

et al.

Journal of Chemical Technology & Biotechnology, Journal Year: 2024, Volume and Issue: 100(1), P. 50 - 66

Published: Sept. 12, 2024

Abstract BACKGROUND Fe 2 O 3 /ZnO hybrid nanoadsorbent was synthesized by the coprecipitation method and characterized. The hydrodynamic size stability of were investigated in batch adsorption toxic Reactive orange (RO)16 dye at increasing concentrations. mechanism monolayer multilayer elucidated for first time together through dynamic light scattering (DLS), isotherm, kinetic thermodynamic studies. A tomato seed germination assay performed to confirm material treated water toxicity. RESULTS ferromagnetic exhibited 85% RO16 removal. Nonlinear fitting isotherm models suggest chemisorption (monolayer) physisorption (multilayer) over heterogeneous surface nanoadsorbent, respectively, lower higher concentration dye. In line with these mechanistic insights, DLS studies demonstrate that increased up 100 mg L −1 face‐off binding molecules, whereas 100–500 range; besides increase capacity, did not magnify owing face‐on multiple molecule stacking. Zeta potential data confirmed greater solution pH large size. Thermodynamic suggested endothermic spontaneous process primarily controlled physical toxicity proved are environmentally safe. CONCLUSION DLS, complex a heterogenous nanoadsorbent. It found chemisorptive molecules physisorptive affect size; rather, it remained stable concentration. © 2024 Society Chemical Industry (SCI).

Language: Английский

Citations

4
Coconut shell-derived biocarbon composite for adsorptive field-water purification. DOI
Huda Awang,

Palsan Sannasi Abdullah,

Zul Ariff Abdul Latiff

et al.

Materials Chemistry and Physics, Journal Year: 2025, Volume and Issue: 333, P. 130359 - 130359

Published: Jan. 5, 2025

Language: Английский

Citations

0