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Li J, Wang X, Feng Z, Huang G, Yan L, Ma J. Optimization of aflatoxin B 1 removal efficiency of DNA by resonance light scattering spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2023; 292:122398. [PMID: 36739664 DOI: 10.1016/j.saa.2023.122398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/09/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
In this paper, firstly, the resonance light scattering spectra of aflatoxin B1 (AFB1) and DNA were measured by resonance light scattering spectroscopy (RLS), and the DNA binding saturation value (DBSV) of AFB1 was calculated from their spectral results. Then the interaction intensity between DNA and AFB1 and the effects of some external factors on the interaction between DNA and AFB1 were evaluated by corresponding DBSVs, so as to establish and optimize a way for removing AFB1 by DNA. DBSV of AFB1 was 2.04 at 30℃ and pH 7.40. However, after adding sodium ion, calcium ion, vitamin E, vitamin C and D-glucose, DBSV of AFB1 was changed to 2.72, 3.17, 2.67, 1.68 and 1.33 respectively. Correspondingly, the removal efficiency of AFB1 by DNA was changed from 90.05% to 93.25%, 95.48%, 93.08%, 82.36% and 78.90% respectively. These results indicated that the external factors had a significant impact on the interaction between DNA and AFB1. Among them, some factors enhanced the interaction between DNA and AFB1, while some factors weakened the interaction between DNA and AFB1. The change of these external factors led to the corresponding changes in DBSV and the removal efficiency of AFB1. DBSV of AFB1 could really be used as an index to evaluate the intensity of the interaction between DNA and AFB1, and to optimize the removal efficiency of AFB1 by DNA. The experimental data also showed that the adsorption of AFB1 to DNA was consistent with the pseudo-second-order kinetic model and the Freundlich isothermal model, was an exothermic and spontaneous process. All these results will give good references for establishing and optimizing a way of AFB1 removal via DNA intercalation.
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Affiliation(s)
- Junsheng Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China.
| | - Xiaoxue Wang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
| | - Zhen Feng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
| | - Guoxia Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
| | - Liujuan Yan
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
| | - Ji Ma
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Wenchang Road 2, Liuzhou 545006, Guangxi, PR China
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Abstract
This article reviews recent studies applying machine learning (ML) approaches to biochar applications. We first briefly introduce the general biochar production process. Various aspects are contained, including the biochar application in the elimination of heavy metals and/or organic compounds and the biochar application in environmental and economic scopes, for instance, food security, energy, and carbon emission. The utilization of ML methods, including ANN, RF, and NN, plays a vital role in evaluating and predicting the efficiency of biochar absorption. It has been proved that ML methods can validly predict the adsorption effectiveness of biochar for water heavy metals with higher accuracy. Moreover, the literature proposed a comprehensive data-driven model to forecast biochar yield and compositions under various biomass input feedstock and different pyrolysis criteria. They said a 12.7% improvement in prediction accuracy compared to the existing literature. However, it might need further optimization in this direction. In summary, this review concludes increasing studies that a well-trained ML method can sufficiently reduce the number of experiment trials and working times associated with higher prediction accuracy. Moreover, further studies on ML applications are needed to optimize the trade-off between biochar yield and its composition.
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Affiliation(s)
- Meng-Wei Chen
- Institute of Economics and Finance, Nanjing Audit University, Nanjing, China
| | | | - Yuehua Mao
- School of International Economics, University of International Business and Economics, Beijing, China
| | - Shuyin Hu
- School of Economics, Jiangxi University of Finance and Economics, Nanchang, China
| | - Chih-Chun Kung
- School of Economics, Jiangxi University of Finance and Economics, Nanchang, China
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Ganea IV, Nan A, Roba C, Neamțiu I, Gurzău E, Turcu R, Filip X, Baciu C. Development of a New Eco-Friendly Copolymer Based on Chitosan for Enhanced Removal of Pb and Cd from Water. Polymers (Basel) 2022; 14:polym14183735. [PMID: 36145880 PMCID: PMC9504173 DOI: 10.3390/polym14183735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/31/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
Worldwide, concerns about heavy metal contamination from manmade and natural sources have increased in recent decades. Metals released into the environment threaten human health, mostly due to their integration into the food chain and persistence. Nature offers a large range of materials with different functionalities, providing also a source of inspiration for scientists working in the field of material synthesis. In the current study, a new type of copolymer is introduced, which was synthesized for the first time by combining chitosan and poly(benzofurane-co-arylacetic acid), for use in the adsorption of toxic heavy metals. Such naturally derived materials can be easily and inexpensively synthesized and separated by simple filtration, thus becoming an attractive alternative solution for wastewater treatment. The new copolymer was investigated by solid-state nuclear magnetic resonance, thermogravimetric analysis, scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray photon electron microscopy. Flame atomic absorption spectrometry was utilized to measure heavy metal concentrations in the investigated samples. Equilibrium isotherms, kinetic 3D models, and artificial neural networks were applied to the experimental data to characterize the adsorption process. Additional adsorption experiments were performed using metal-contaminated water samples collected in two seasons (summer and winter) from two former mining areas in Romania (Roșia Montană and Novăț-Borșa). The results demonstrated high (51–97%) adsorption efficiency for Pb and excellent (95–100%) for Cd, afttr testing on stock solutions and contaminated water samples. The recyclability study of the copolymer indicated that the removal efficiency decreased to 89% for Pb and 58% for Cd after seven adsorption–desorption cycles.
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Affiliation(s)
- Iolanda-Veronica Ganea
- Faculty of Environmental Science and Engineering, Babes-Bolyai University, 30 Fantanele, 400294 Cluj-Napoca, Romania
- Development of Isotopic and Molecular Technologies, National Institute for Research, 67-103 Donath, 400293 Cluj-Napoca, Romania
| | - Alexandrina Nan
- Development of Isotopic and Molecular Technologies, National Institute for Research, 67-103 Donath, 400293 Cluj-Napoca, Romania
- Correspondence: (A.N.); (C.B.)
| | - Carmen Roba
- Faculty of Environmental Science and Engineering, Babes-Bolyai University, 30 Fantanele, 400294 Cluj-Napoca, Romania
| | - Iulia Neamțiu
- Faculty of Environmental Science and Engineering, Babes-Bolyai University, 30 Fantanele, 400294 Cluj-Napoca, Romania
- Environmental Health Center, 58 Busuiocului, 400240 Cluj-Napoca, Romania
| | - Eugen Gurzău
- Faculty of Environmental Science and Engineering, Babes-Bolyai University, 30 Fantanele, 400294 Cluj-Napoca, Romania
- Environmental Health Center, 58 Busuiocului, 400240 Cluj-Napoca, Romania
- Cluj School of Public Health, College of Political, Administrative and Communication Sciences, Babeș-Bolyai University, 7 Pandurilor, 400095 Cluj-Napoca, Romania
| | - Rodica Turcu
- Development of Isotopic and Molecular Technologies, National Institute for Research, 67-103 Donath, 400293 Cluj-Napoca, Romania
| | - Xenia Filip
- Development of Isotopic and Molecular Technologies, National Institute for Research, 67-103 Donath, 400293 Cluj-Napoca, Romania
| | - Călin Baciu
- Faculty of Environmental Science and Engineering, Babes-Bolyai University, 30 Fantanele, 400294 Cluj-Napoca, Romania
- Correspondence: (A.N.); (C.B.)
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Carvalho de Almeida C, Ganiyu SO, Martínez‐Huitle CA, dos Santos EV, Barrios Eguiluz KI, Salazar‐Banda GR. Unprecedented formation of reactive BrO– ions and their role as mediators for organic compounds degradation: The fate of bromide ions released during the anodic oxidation of Bromophenol blue dye. Electrochemical Science Adv 2022. [DOI: 10.1002/elsa.202100225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
| | - Soliu O. Ganiyu
- Department of Civil and Environmental Engineering 7–352 Donadeo Innovation Centre for Engineering University of Alberta Edmonton Canada
| | | | | | - Katlin Ivon Barrios Eguiluz
- Programa de Pós‐Graduação em Engenharia de Processos Universidade Tiradentes Aracaju Brazil
- Laboratório de Eletroquímica e Nanotecnologia Instituto de Tecnologia e Pesquisa Aracaju Brazil
| | - Giancarlo Richard Salazar‐Banda
- Programa de Pós‐Graduação em Engenharia de Processos Universidade Tiradentes Aracaju Brazil
- Laboratório de Eletroquímica e Nanotecnologia Instituto de Tecnologia e Pesquisa Aracaju Brazil
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Ahmad MS, Khalid M, Khan MS, Shahid M, Ahmad M. Exploiting one dimensional polymer for environmental monitoring: Co based coordination polymer for efficient removal of cationic dyes. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123307] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Ud Din Mir N, Shahwaz Ahmad M, Khan S, Yasir Khan Conceprualization M, Vakil F, Saraswat S, Shahid M. Simpler is better: A heterometallic (Mn-Na) metal organic framework (MOF) with a rare myc topology synthesized from bench chemicals for selective adsorption and separation of organic dyes. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Alibakhshi S, Shahvelayati AS, Sheshmani S, Ranjbar M, Souzangarzadeh S. Design, synthesis, and characterization of a novel Zn(II)-2-phenyl benzimidazole framework for the removal of organic dyes. Sci Rep 2022; 12:12431. [PMID: 35858985 DOI: 10.1038/s41598-022-16753-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 07/14/2022] [Indexed: 11/09/2022] Open
Abstract
A novel Zn (II) organic framework comprising 2-phenyl benzimidazole (ZPBIF-1) was synthesized by using a solvothermal method. The characterization of the synthesized MOF was performed utilizing XRD, SEM, FT-IR, 1H-NMR, 13C-NMR, MS, XPS, TG/DTA, and N2 sorption analysis. ZPBIF-1 was successfully utilized to remove Acid red 88, Basic Violet 14, Basic Blue 54, and Congo red dyes in aqueous solutions. In this study, some parameters, including adsorbent dosage, initial dye concentration, contact time, temperature, and pH, were examined. To evaluate the experimental data, Freundlich, Langmuir, Temkin, and Dubinin-Radushkevich isotherm models were used. In this case, Langmuir is the most suitable model. Several kinetic models, including First-order, pseudo-first-order, second-order, and Pseudo-second-order kinetic models, Elovich's, and Weber's intraparticle diffusion models, were utilized to comprehend the detailed adsorption process. According to the pseudo-second-order kinetic model, dye sorption kinetics is best described. In addition, thermodynamic parameters like enthalpy (ΔH°), Gibbs free energy (ΔG°), and entropy (ΔS°) were also achieved and analyzed. The experimental studies thus suggest that Zn (II) metal-organic framework based on 2-phenyl benzimidazole could be a promising candidate for eliminating dyes from aqueous solution. Hence, the experimental studies suggest that a Zn (II) metal-organic framework based on 2-phenylbenzimidazole could be a promising candidate for eliminating dyes from aqueous solution. The maximum adsorption capacity of ZPBIF-1 was 1666.66, 1250, 1000, and 1250 mg/g for Acid red 88, Basic violet 14, Basic blue 54, and Congo red dyes, respectively. Furthermore, this method was used to remove contaminant dyes from textile wastewater, and an acceptable result was obtained.
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Karami A, Shomal R, Sabouni R, Al-sayah MH, Aidan A. Parametric Study of Methyl Orange Removal Using Metal–Organic Frameworks Based on Factorial Experimental Design Analysis. Energies 2022; 15:4642. [DOI: 10.3390/en15134642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Wastewater treatment plants (WWTPs) are one of the most energy-intensive industries. Every stage of wastewater treatment consumes energy, which is the primary contributor to WWTP costs. Adsorbents and process optimization are critical for energy savings. The removal of dyes from industrial wastewater by adsorption using commercially available adsorbents is inefficient. Metal–organic frameworks (MOFs) have outstanding properties that can improve separation performance over current commercial adsorbents, and thus, these materials represent a milestone in improving dye removal in water treatment methods. In this work, three types of metal–organic frameworks (Fe-BTC, Cu-BTC, and ZIF-8) have been investigated as prospective adsorbents for methyl orange removal from water in batch setups. The results showed that at 15 mg/L MO initial concentration and 100 mg dosage, Fe-BTC had the highest removal efficiency of 91%, followed by ZIF-8 (63%), and finally Cu-BTC (35%), which exhibited structural damage due to its instability in water. Fe-BTC maintained consistent adsorption capacity over a wide range of pH values. Furthermore, a 23 full factorial design analysis was implemented to evaluate the conditions for maximum MO-removal efficiency. The main effects, interaction effects, analysis of variance (ANOVA), and the Pareto chart were reported. The statistical analysis demonstrated that the MOF type was the most significant factor, followed by dosage and initial concentration. The analysis indicated that the type of MOF and dosage had a positive effect on the removal efficiency, while the initial concentration had a negative effect. The two-way and three-way interactions were also found to be significant.
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Zein R, Purnomo JS, Ramadhani P, Alif MF, Safni S. Lemongrass ( Cymbopogon nardus) leaves biowaste as an effective and low-cost adsorbent for methylene blue dyes removal: isotherms, kinetics, and thermodynamics studies. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2058549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Rahmiana Zein
- Department of Chemistry, Laboratory of Environmental Analytical Chemistry, Andalas University, Padang, Indonesia
| | - Jofi Satrio Purnomo
- Department of Chemistry, Laboratory of Environmental Analytical Chemistry, Andalas University, Padang, Indonesia
| | - Putri Ramadhani
- Department of Chemistry, Laboratory of Environmental Analytical Chemistry, Andalas University, Padang, Indonesia
| | - Matlal Fajri Alif
- Department of Chemistry, Laboratory of Environmental Analytical Chemistry, Andalas University, Padang, Indonesia
| | - Safni Safni
- Department of Chemistry, Laboratory of Applied Analytical Chemistry, Andalas University, Padang, Indonesia
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Nazal MK, Ditta M, Gijjapu D, Abuzaid N. Treatment of water contaminated with petroleum hydrocarbons using a biochar derived from seagrass biomass as low-cost adsorbent: isotherm, kinetics and reusability studies. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2058550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Mazen Khaled Nazal
- Applied Research Center for Environment & Marine Studies, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Muhammad Ditta
- Applied Research Center for Environment & Marine Studies, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Durga Gijjapu
- Applied Research Center for Environment & Marine Studies, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Nabeel Abuzaid
- Applied Research Center for Environment & Marine Studies, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
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Taoufik N, Boumya W, Achak M, Chennouk H, Dewil R, Barka N. The state of art on the prediction of efficiency and modeling of the processes of pollutants removal based on machine learning. Sci Total Environ 2022; 807:150554. [PMID: 34597573 DOI: 10.1016/j.scitotenv.2021.150554] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/02/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
During the last few years, important advances have been made in big data exploration, complex pattern recognition and prediction of complex variables. Machine learning (ML) algorithms can efficiently analyze voluminous data, identify complex patterns and extract conclusions. In chemical engineering, the application of machine learning approaches has become highly attractive due to the growing complexity of this field. Machine learning allows computers to solve problems by learning from large data sets and provides researchers with an excellent opportunity to enhance the quality of predictions for the output variables of a chemical process. Its performance has been increasingly exploited to overcome a wide range of challenges in chemistry and chemical engineering, including improving computational chemistry, planning materials synthesis and modeling pollutant removal processes. In this review, we introduce this discipline in terms of its accessible to chemistry and highlight studies that illustrate in-depth the exploitation of machine learning. The main aim of the review paper is to answer these questions by analyzing physicochemical processes that exploit machine learning in organic and inorganic pollutants removal. In general, the purpose of this review is both to provide a summary of research related to the removal of various contaminants performed by ML models and to present future research needs in ML for contaminant removal.
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Affiliation(s)
- Nawal Taoufik
- Sultan Moulay Slimane University of Beni Mellal, Research Group in Environmental Sciences and Applied Materials (SEMA), FP Khouribga, Morocco.
| | - Wafaa Boumya
- Sultan Moulay Slimane University of Beni Mellal, Research Group in Environmental Sciences and Applied Materials (SEMA), FP Khouribga, Morocco
| | - Mounia Achak
- Science Engineer Laboratory for Energy, National School of Applied Sciences, Chouaïb Doukkali University, El Jadida, Morocco; Chemical & Biochemical Sciences, Green Process Engineering, CBS, Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Hamid Chennouk
- RITM Laboratory, Computer Science and Networks Team ENSEM - ESTC - UH2C, Casablanca, Morocco
| | - Raf Dewil
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Noureddine Barka
- Sultan Moulay Slimane University of Beni Mellal, Research Group in Environmental Sciences and Applied Materials (SEMA), FP Khouribga, Morocco.
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Zhu X, He M, Sun Y, Xu Z, Wan Z, Hou D, Alessi DS, Tsang DCW. Insights into the adsorption of pharmaceuticals and personal care products (PPCPs) on biochar and activated carbon with the aid of machine learning. J Hazard Mater 2022; 423:127060. [PMID: 34530273 DOI: 10.1016/j.jhazmat.2021.127060] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 08/09/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
The science-informed design of 'green' carbonaceous materials (e.g., biochar and activated carbon) with high removal capacity of recalcitrant organic contaminants (e.g., pharmaceuticals and personal care products (PPCPs)) is indispensable for promoting sustainable wastewater treatment. In this study, machine learning (ML) incorporating PPCPs and biochar properties as well as adsorption conditions were applied to build adsorption prediction models and explore the contributions of various biochar's inherent properties to their PPCPs adsorption capacity. The results demonstrated that the models developed by detailed biochar properties (e.g., surface functionality and hierarchical porous structure) from advanced microscopic and spectroscopic techniques were more accurate (i.e., the root-mean-square error decreased by 18-24%) than those by general information such as bulk elemental composition and total pore volume. The relative importance of surface carbon functionalities ranked in the order of C-O bond > CO bond > non-polar carbon for predicting the adsorption capacity. According to the partial dependence analysis, the average pore diameters of adsorbents that were larger than the maximum diameter of PPCPs molecules by 1.5-fold to 2.5-fold favored the PPCPs adsorption. This study reveals new insights into the adsorption of PPCPs and provides a comprehensive reference for the sustainable engineering of biochar adsorbents for PPCPs wastewater treatment.
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Affiliation(s)
- Xinzhe Zhu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Mingjing He
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Yuqing Sun
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Zibo Xu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Zhonghao Wan
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Daniel S Alessi
- Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2E3, Canada
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
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Bougdah N, Bousba S, Belhocine Y, Messikh N. Application of multilayer perceptron network and random forest models for modelling the adsorption of chlorobenzene on a modified bentonite by intercalation with hexadecyltrimethyl ammonium (HDTMA). Reac Kinet Mech Cat 2022; 135:247-270. [DOI: 10.1007/s11144-021-02121-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Mehmandost N, Goudarzi N, Arab Chamjangali M, Bagherian G. Application of random forest for modeling batch and continuous fixed-bed removal of crystal violet from aqueous solutions using Gypsophila aretioides stem-based biosorbent. Spectrochim Acta A Mol Biomol Spectrosc 2022; 265:120292. [PMID: 34530199 DOI: 10.1016/j.saa.2021.120292] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 07/31/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
In this work, the Gypsophila aretioides (GYP-A) stem is used as a biosorbent to remove crystal violet (CV) by the static and dynamic systems from aqueous solutions; the biosorbent is interesting in green chemistry and, on the other hand, cheaper than activated carbon and does not have the limitation of industrialization. The effects of different operating parameters such as pH(3-9), biosorbent dosage(0.4-1.8 mg/L), and initial concentration of CV(100-250 mg/L) and time for the batch method and the bed height, inlet CV concentration(75-250 mg/L), and flow rate(3-8) on the breakthrough curves for the continuous method is investigated. The result of CV adsorption onto GYP-A using the batch method indicates that the model fits Freundlich > Temkin > Langmuir > R-D, and R2 equal 0.9953, 0.9847, 0.9161, 0.7909 were obtained for isotherm model, respectively. A pseudo-second-order model (R2 = 0.9995-0.9997) is recommended to describe the adsorption kinetics. The Thomas and Yoon-Nelson models were analyzed to study the adsorption kinetics. The random forest model shows an excellent ability to predict the parameters involved in the CV adsorption process with appropriate accuracy and useable for large data, robust against noise; it can be very effective in selecting important variables.
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Affiliation(s)
- Nasrin Mehmandost
- College of Chemistry, Shahrood University of Technology, PO Box 36155-316, Shahrood, Iran
| | - Nasser Goudarzi
- College of Chemistry, Shahrood University of Technology, PO Box 36155-316, Shahrood, Iran.
| | | | - Ghadamali Bagherian
- College of Chemistry, Shahrood University of Technology, PO Box 36155-316, Shahrood, Iran
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Bhattacharya A, Sahu S, Telu V, Duttagupta S, Sarkar S, Bhattacharya J, Mukherjee A, Ghosal PS. Neural Network and Random Forest-Based Analyses of the Performance of Community Drinking Water Arsenic Treatment Plants. Water 2021; 13:3507. [DOI: 10.3390/w13243507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A plethora of technologies has been developed over decades of extensive research on arsenic remediation, although the technical and financial perspective of arsenic removal plants in the field requires critical evaluation. In the present study, focusing on some of the pronounced arsenic-affected areas in West Bengal, India, we assessed the implementation and operation of different arsenic removal technologies using a dataset of 4000 spatio-temporal data collected from an in-depth field survey of 136 arsenic removal plants engaged in the public water supply. Our statistical analysis of this dataset indicates a 120% rise in the average cumulative capacity of the plants during 2014–2021. The majorities of the plants are based on the activated alumina with FeCl3 technology and serve about 49% of the population in the study area. The average cost of water production for the activated alumina with FeCl3 technology was found to be ₹7.56/m3 (USD $1 ≈ INR ₹70), while the lowest was ₹0.39/m3 for granular ferric hydroxide technology. A machine learning-based framework was employed to analyze the impact of water quality and treatment plant parameters on the removal efficiency, capital, and operational cost of the plants. The artificial neural network model exhibited adequate statistical significance, with a high F-value and R2 of 5830.94 and 0.72 for the capital cost model, 136,954, and 0.98 for the operational cost model, respectively. The relative importance of the process variables was identified through random forest models. The models indicated that flow rate, media, and chemicals are the predominant costs, while contaminant loading in influent water and a coagulating agent was important for removal efficiency. The established framework may be instrumental as a decision-making tool for water providers to assess the expected performance and financial involvement for proposed or ongoing arsenic removal plants concerning various design and quality parameters.
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Samadi-Maybodi A, Nikou M. Modeling of removal of an organophosphorus pesticide from aqueous solution by amagnetic metal–organic framework composite. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.09.072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rahmanian S, Pourghasemi HR, Pouyan S, Karami S. Habitat potential modelling and mapping of Teucrium polium using machine learning techniques. Environ Monit Assess 2021; 193:759. [PMID: 34718878 DOI: 10.1007/s10661-021-09551-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
Determining suitable habitats is important for the successful management and conservation of plant and wildlife species. Teucrium polium L. is a wild plant species found in Iran. It is widely used to treat numerous health problems. The range of this plant is shrinking due to habitat destruction and overexploitation. Therefore, habitat suitability (HS) modeling is critical for conservation. HS modeling can also identify the key characteristics of habitats that support this species. This study models the habitats of T. polium using five data mining models: random forest (RF), flexible discriminant analysis (FDA), multivariate adaptive regression splines (MARS), support vector machine (SVM), and generalized linear model (GLM). A total of 119 T. poliumlocations were identified and mapped. According to the RF model, the most important factors describing T. polium habitat were elevation, soil texture, and mean annual rainfall. HS maps (HSMs) were prepared, and habitat suitability was classified as low, medium, high, or very high. The percentages of the study area assigned high or very high suitability ratings by each of the models were 44.62% for FDA, 43.75% for GLM, 43.12% for SVM, 38.91% for RF, 28.72% for MARS, and 39.16% for their ensemble. Although the six models were reasonably accurate, the ensemble model had the highest AUC value, demonstrating a strong predictive performance. The rank order of the other models in this regard is RF, MARS, SVM, FDA, and GLM. HSMs can provide useful output to support the sustainable management of rangelands, reclamation, and land protection.
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Affiliation(s)
- Soroor Rahmanian
- Quantitative Plant Ecology and Biodiversity Research Lab, Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran
| | - Hamid Reza Pourghasemi
- Department of Natural Resources and Environmental Engineering, College of Agriculture, Shiraz University, 71441, 65186, Shiraz, Iran.
| | - Soheila Pouyan
- Department of Natural Resources and Environmental Engineering, College of Agriculture, Shiraz University, 71441, 65186, Shiraz, Iran
| | - Sahar Karami
- Quantitative Plant Ecology and Biodiversity Research Lab, Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran
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Moosavi S, Manta O, El-Badry YA, Hussein EE, El-Bahy ZM, Mohd Fawzi NFB, Urbonavičius J, Moosavi SMH. A Study on Machine Learning Methods' Application for Dye Adsorption Prediction onto Agricultural Waste Activated Carbon. Nanomaterials (Basel) 2021; 11:nano11102734. [PMID: 34685171 PMCID: PMC8540925 DOI: 10.3390/nano11102734] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/01/2021] [Accepted: 10/11/2021] [Indexed: 11/25/2022]
Abstract
The adsorption of dyes using 39 adsorbents (16 kinds of agro-wastes) were modeled using random forest (RF), decision tree (DT), and gradient boosting (GB) models based on 350 sets of adsorption experimental data. In addition, the correlation between variables and their importance was applied. After comprehensive feature selection analysis, five important variables were selected from nine variables. The RF with the highest accuracy (R2 = 0.9) was selected as the best model for prediction of adsorption capacity of agro-waste using the five selected variables. The results suggested that agro-waste characteristics (pore volume, surface area, agro-waste pH, and particle size) accounted for 50.7% contribution for adsorption efficiency. The pore volume and surface area are the most important influencing variables among the agro-waste characteristics, while the role of particle size was inconspicuous. The accurate ability of the developed models’ prediction could significantly reduce experimental screening efforts, such as predicting the dye removal efficiency of agro-waste activated carbon according to agro-waste characteristics. The relative importance of variables could provide a right direction for better treatments of dyes in the real wastewater.
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Affiliation(s)
- Seyedehmaryam Moosavi
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania;
- Correspondence:
| | - Otilia Manta
- Romanian Academy, Center for Financial and Monetary Research “Victor Slavescu”, 050711 Bucharest, Romania;
- Research Department, Romanian-American University, 012101 Bucharest, Romania
| | - Yaser A. El-Badry
- Chemistry Department, Faculty of Science, Taif University, Khurma, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Enas E. Hussein
- National Water Research Centre, P.O. Box 74, Shubra EI-Kheima 13411, Egypt;
| | - Zeinhom M. El-Bahy
- Chemistry Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt;
| | - Noor fariza Binti Mohd Fawzi
- Nanotechnology & Catalysis Research Centre (NANOCAT), Institute for Advanced Studies (IAS), University for Malaya (UM), Kuala Lumpur 50603, Malaysia;
| | - Jaunius Urbonavičius
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania;
| | - Seyed Mohammad Hossein Moosavi
- Faculty of Engineering, Centre for Transportation Research (CTR), University of Malaya (UM), Kuala Lumpur 50603, Malaysia;
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19
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Chabalala MB, Al-Abri MZ, Mamba BB, Nxumalo EN. Mechanistic aspects for the enhanced adsorption of bromophenol blue and atrazine over cyclodextrin modified polyacrylonitrile nanofiber membranes. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.02.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Vafaei A, Ghaedi AM, Avazzadeh Z, Kiarostami V, Agarwal S, Gupta VK. Removal of hydrochlorothiazide from molecular liquids using carbon nanotubes: Radial basis function neural network modeling and culture algorithm optimization. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114766] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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21
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Chowdhury A, Kumari S, Khan AA, Chandra MR, Hussain S. Activated carbon loaded with Ni-Co-S nanoparticle for superior adsorption capacity of antibiotics and dye from wastewater: Kinetics and isotherms. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125868] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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22
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Khan MS, Khalid M, Shahid M. Engineered Fe 3 triangle for the rapid and selective removal of aromatic cationic pollutants: complexity is not a necessity. RSC Adv 2021; 11:2630-2642. [PMID: 35424254 PMCID: PMC8693882 DOI: 10.1039/d0ra09586a] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 11/26/2020] [Indexed: 11/21/2022] Open
Abstract
In this study, a low-cost oxo-bridged {Fe3} triangular cluster was constructed based on a benzoate ligand via slow evaporation. The cluster was thoroughly characterized by FTIR and UV-visible spectroscopy, TGA, and PXRD, and the exact structure was elucidated by single-crystal XRD. The formation of C-H⋯π and π-π interactions is responsible for the extra stability of {Fe3} clusters, which further enhances the dye adsorption property. The dye adsorption experiments performed on cationic [methylene blue (MB) and rhodamine-B (Rh-B)] as well as anionic [methyl orange (MO) and congo red (CR)] dyes revealed the ultimate selectivity of the present cluster towards the cationic ones. The {Fe3} cluster exclusively adsorbs the cationic dyes, i.e., MB and Rh-B even in the presence of anionic dyes, i.e., CR and MO. The extra stability, reusability and high efficiency of the {Fe3} molecular ensemble make it an attractive and fascinating material of importance. The kinetics analysis was evaluated employing different kinetics models. Furthermore, the plausible adsorption mechanism was also proposed, which suggests the interplay of cation-π and π-π interactions consolidating the efficient adsorption. Thus, the present work opens new doors for coordination chemists to further tune the structural features to modulate the adsorption/separation capacities of simple low-cost clusters for environmental protection for future efforts.
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Affiliation(s)
- M Shahnawaz Khan
- Functional Inorganic Materials Lab (FIML), Department of Chemistry, Aligarh Muslim University Aligarh 202002 India
| | - Mohd Khalid
- Functional Inorganic Materials Lab (FIML), Department of Chemistry, Aligarh Muslim University Aligarh 202002 India
| | - M Shahid
- Functional Inorganic Materials Lab (FIML), Department of Chemistry, Aligarh Muslim University Aligarh 202002 India
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Affiliation(s)
- Paria Mirzapour
- Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | | | - Sajad Tamjidi
- Department of Chemical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Hossein Esmaeili
- Department of Chemical Engineering, Bushehr Branch, Islamic Azad University, Bushehr, Iran
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Alorabi AQ, Shamshi Hassan M, Azizi M. Fe3O4-CuO-activated carbon composite as an efficient adsorbent for bromophenol blue dye removal from aqueous solutions. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Akpomie KG, Conradie J. Biogenic and chemically synthesized Solanum tuberosum peel-silver nanoparticle hybrid for the ultrasonic aided adsorption of bromophenol blue dye. Sci Rep 2020; 10:17094. [PMID: 33051565 PMCID: PMC7555862 DOI: 10.1038/s41598-020-74254-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/29/2020] [Indexed: 11/20/2022] Open
Abstract
This work was aimed at the synthesis of a hybrid (STpe-AgNP), obtained by impregnation of silver nanoparticles (AgNP) onto Solanum tuberosum peel (STpe), for the ultrasonic assisted adsorption of bromophenol blue (BB) dye. SEM, FTIR, XRD, EDX, TGA and BET techniques were used to characterize the adsorbents. The XRD, SEM and EDX confirmed successful impregnation of AgNPs onto STpe to form the hybrid. The AgNPs impregnated onto the hybrid were found to be water stable at various pH values of 2.0-9.0. Chi-square (χ2 < 0.024) and linear regression (R2 > 0.996) showed that the Freundlich model was best fitted among the isotherm models, corroborated by the oriented site model. Kinetic analysis conformed to the intraparticle diffusion and pseudo-first-order rate equations, while thermodynamics displayed a physical, spontaneous and endothermic adsorption process. The presence of competing Pb(II), Ni(II), Cd(II) and Zn(II) metal ions in solution interfered with the adsorption of BB onto the biosorbents. In terms of reusability, STpe and STpe-AgNP showed BB desorption of 91.3% and 88.5% respectively, using NaOH as eluent. Ultra-sonication significantly enhanced the adsorption of BB by both adsorbents, but the impregnation of AgNPs only slightly improved adsorption of the dye from the simulated wastewater. This study also illustrated that pristine STpe biomass waste is a cheap viable option for the decontamination of BB from water.
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Affiliation(s)
- Kovo G Akpomie
- Physical Chemistry Research Laboratory, Department of Chemistry, University of the Free State, Bloemfontein, South Africa.
- Industrial/Physical Chemistry Unit, Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria.
| | - Jeanet Conradie
- Physical Chemistry Research Laboratory, Department of Chemistry, University of the Free State, Bloemfontein, South Africa
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26
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Beigzadeh B, Bahrami M, Amiri MJ, Mahmoudi MR. A new approach in adsorption modeling using random forest regression, Bayesian multiple linear regression, and multiple linear regression: 2,4-D adsorption by a green adsorbent. Water Sci Technol 2020; 82:1586-1602. [PMID: 33107853 DOI: 10.2166/wst.2020.440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The mathematical model's usage in water quality prediction has received more interest recently. In this research, the potential of random forest regression (RFR), Bayesian multiple linear regression (BMLR), and multiple linear regression (MLR) were examined to predict the amount of 2,4-dichlorophenoxy acetic acid (2,4-D) elimination by rice husk biochar from synthetic wastewater, using five input operating parameters including initial 2,4-D concentration, adsorbent dosage, pH, reaction time, and temperature. The equilibrium and kinetic adsorption data were fitted best to the Freundlich and pseudo-first-order models. The thermodynamic parameters also indicated the exothermic and spontaneous nature of adsorption. The modeling results indicated an R2 of 0.994, 0.992, and 0.945 and RMSE of 1.92, 6.17, and 2.10 for the relationship between the model-estimated and measured values of 2,4-D removal for RFR, BMLR, and MLR, respectively. Overall performances indicated more proficiency of RFR than the BMLR and MLR models due to its capability in capturing the non-linear relationships between input data and their associated removal capacities. The sensitivity analysis demonstrated that the 2,4-D adsorption process is more sensitive to initial 2,4-D concentration and adsorbent dosage. Thus, it is possible to permanently monitor waters more cost-effectively with the suggested model application.
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Affiliation(s)
- Bahareh Beigzadeh
- Department of Water Engineering, Faculty of Agriculture, Fasa University, Fasa, 74616-86131, Iran E-mail:
| | - Mehdi Bahrami
- Department of Water Engineering, Faculty of Agriculture, Fasa University, Fasa, 74616-86131, Iran E-mail:
| | - Mohammad Javad Amiri
- Department of Water Engineering, Faculty of Agriculture, Fasa University, Fasa, 74616-86131, Iran E-mail:
| | - Mohammad Reza Mahmoudi
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam and Department of Statistics, Faculty of Science, Fasa University, Fasa, 74616-86131, Iran
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27
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Akpomie KG, Conradie J. Efficient synthesis of magnetic nanoparticle-Musa acuminata peel composite for the adsorption of anionic dye. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.07.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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28
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Dada AO, Adekola FA, Odebunmi EO, Dada FE, Bello OM, Akinyemi BA, Bello OS, Umukoro OG. Sustainable and low-cost Ocimum gratissimum for biosorption of indigo carmine dye: kinetics, isotherm, and thermodynamic studies. Int J Phytoremediation 2020; 22:1524-1537. [PMID: 32657133 DOI: 10.1080/15226514.2020.1785389] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In the quest for a sustainable environment and clean water resources, the efficacy of Ocimum gratissimum leave (OGL) for indigo carmine (IC) dye biosorption was studied in a batch technique. The physicochemical properties of OGL supported its suitability for biosorption studies. Of 92.6% removal efficiency was achieved at optimum conditions of pH 2, contact time 120 min, initial IC concentration 500 ppm, temperature 298 K, and 100 mg OGL dose. Kinetic data were best fitted to pseudo second-order (PSO) and the mechanism was pore diffusion governed as validated by sum of square error (SSE) and non-linear chi-square (χ 2). Freundlich isotherm model gave the best description at 298 K as supported by Halsey, Redlich-Peterson, and Fowler-Guggenheim confirming the heterogeneous nature of OGL and multilayer biosorption process. Langmuir Q max (77.52 mg g-1) surpassed those previously reported. SEM and EDX confirmed the reality of the biosorption process. Thermodynamic parameters (ΔH°, ΔS°, ΔG°, and Ea) affirm a feasible, spontaneous, exothermic, and randomness of the process. Results revealed that OGL is a potential and efficient environmentally benign, low cost, and sustainable biosorbents. It is therefore recommended as a bi-functional biosorbent for wastewater treatment.
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Affiliation(s)
- Adewumi O Dada
- Department of Physical Sciences, Industrial Chemistry Programme, Landmark University, Omu-Aran, Nigeria
| | - Folahan A Adekola
- Department of Industrial Chemistry, University of Ilorin, Ilorin, Nigeria
| | | | | | - Oluwasesan M Bello
- Department of Applied Chemistry, Federal University, Dutsin-Ma, Nigeria
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, Oxford, MS, USA
| | - Banjo A Akinyemi
- Department of Agricultural and Biosystems Engineering, Landmark University, Omu-Aran, Nigeria
| | - Olugbenga S Bello
- Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
| | - Oghenerukevwe G Umukoro
- Department of Physical Sciences, Industrial Chemistry Programme, Landmark University, Omu-Aran, Nigeria
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29
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Samadi-maybodi A, Nikou M. Removal of sarafloxacin from aqueous solution by a magnetized metal-organic framework; Artificial neural network modeling. Polyhedron 2020; 179:114342. [DOI: 10.1016/j.poly.2019.114342] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Rajendran N, Samuel J, Amin MO, Al-Hetlani E, Makhseed S. Carbazole-tagged pyridinic microporous network polymer for CO 2 storage and organic dye removal from aqueous solution. Environ Res 2020; 182:109001. [PMID: 31841867 DOI: 10.1016/j.envres.2019.109001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 12/01/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
A microporous organic polymer (Cz-pyr-P) was prepared from a monomer of pyridine-imides, flanked by four carbazoles, and its application as an adsorbent for both CO2 and methylene blue dye in wastewater was investigated. The polymer was synthesised by oxidative polymerisation facilitated by FeCl3 and comprehensively characterised using routine spectroscopic, thermal, textural, and morphological analyses. With a high surface area of 1065 m2/g and a median pore width of 8.06 Å, the nitrogen-enriched Cz-pyr-P reversibly adsorbed 19.41 wt% (273 K) and 12.78 wt% (295 K) CO2 at 1 bar, with a good isosteric heat value of CO2 adsorption (28.5 kJ/mol). For the removal of methylene blue dye from wastewater, Cz-pyr-P exhibited excellent partition coefficient of 380.10 mg/g μM with an equilibrium time of 6 min which is shorter than previously reported values for other materials. The results indicate that Cz-pyr-P with desirable functionality could be utilised for reaching CO2 emission reduction targets as well as for wastewater treatment.
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Affiliation(s)
- Narendran Rajendran
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait
| | - Jacob Samuel
- Petroleum Research Center, Kuwait Institute for Scientific Research, Ahmadi, Kuwait
| | - Mohamed O Amin
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait
| | - Entesar Al-Hetlani
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait.
| | - Saad Makhseed
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, 13060, Safat, Kuwait.
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Zhao M, Cui C. High adsorption of fulvic acid by amino modified styrene-type macroporous resin and evaluation of its mechanism. Water Sci Technol 2020; 81:1000-1010. [PMID: 32541117 DOI: 10.2166/wst.2020.187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Amino-modified HPD 100 styrene-type macroporous resin (M-HPD 100) was successfully synthesized by the atom transfer radical polymerization process. The modified resin showed excellent performance in the degradation of fulvic acid (FA). FA removal was pH, temperature and flow velocity dependent. The adsorption data could be well interpreted by the Freundlich model. The maximum adsorption efficiency for M-HPD 100 obtained from the Freundlich model was 92.5% at 298 K, which was 37% higher than that of unmodified styrene-type macroporous resin (HPD 100). The adsorption process could be described by the pseudo-second-order kinetic model. The intra-particle diffusion and film diffusion were believed to be the rate-limiting process for both adsorbents. Thermodynamic parameters suggested it was a multi-layer physicochemical process. More importantly, although limited improvements were seen, the results of this study suggested that the surface of resin can be modified with functional groups to enhance the adsorption of FA from aqueous solution and may give other advantages; for example, despite the interference of the pore diffusion coefficient and other substances, M-HPD 100 has excellent regeneration capacity, and the adsorption and desorption efficiency was 74% and 64.28% respectively after six regenerations, which proved it has engineering application value.
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Affiliation(s)
- Munan Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China E-mail:
| | - Chongwei Cui
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China E-mail:
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Zhang L, Wei F, Zhao Q, Chen X, Yao Y. Electrochemical degradation of bromophenol blue on porous PbO2–ZrO2 composite electrodes. Res Chem Intermed 2019. [DOI: 10.1007/s11164-019-04040-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Zhu X, Wang X, Ok YS. The application of machine learning methods for prediction of metal sorption onto biochars. J Hazard Mater 2019; 378:120727. [PMID: 31202073 DOI: 10.1016/j.jhazmat.2019.06.004] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/30/2019] [Accepted: 06/02/2019] [Indexed: 06/09/2023]
Abstract
The adsorption of six heavy metals (lead, cadmium, nickel, arsenic, copper, and zinc) on 44 biochars were modeled using artificial neural network (ANN) and random forest (RF) based on 353 dataset of adsorption experiments from literatures. The regression models were trained and optimized to predict the adsorption capacity according to biochar characteristics, metal sources, environmental conditions (e.g. temperature and pH), and the initial concentration ratio of metals to biochars. The RF model showed better accuracy and predictive performance for adsorption efficiency (R2 = 0.973) than ANN model (R2 = 0.948). The biochar characteristics were most significant for adsorption efficiency, in which the contribution of cation exchange capacity (CEC) and pHH2O of biochars accounted for 66% in the biochar characteristics. However, surface area of the biochars provided only 2% of adsorption efficiency. Meanwhile, the models developed by RF had better generalization ability than ANN model. The accurate predicted ability of developed models could significantly reduce experiment workload such as predicting the removal efficiency of biochars for target metal according to biochar characteristics, so as to select more efficient biochar without increasing experimental times. The relative importance of variables could provide a right direction for better treatments of heavy metals in the real water and wastewater.
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Affiliation(s)
- Xinzhe Zhu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Xiaonan Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore.
| | - Yong Sik Ok
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
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Liu, Yang, Wei, Zhang, Zhang, Zhang, Gu. Assessing Habitat Suitability of Parasitic Plant Cistanche deserticola in Northwest China under Future Climate Scenarios. Forests 2019; 10:823. [DOI: 10.3390/f10090823] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
: Cistanche deserticola Ma, a perennial parasitic herb of family Orobanchaceae, is mainly parasitic on the roots of the Haloxylon ammodendron Bunge. In view of this special parasitic relationship, we applied random forest (RF) model to forecast potential geographic distribution, and developed a comprehensive habitat suitability model by integrating bioclimatic and soil factors to assess the suitable distribution of C. deserticola and H. ammodendron across China in 2050s and 2070s under RCP2.6, RCP4.5, and RCP8.5, respectively. We modeled the core potential geographic distribution of C. deserticola by overlaying the distribution of these two species, and analyzed the spatial distribution pattern and migration trend of C. deserticola by using the standard deviational ellipse. In addition, we evaluated the accuracy of RF model through three evaluation indexes, and analyzed the dominant climate factors. The results showed that the core potential distribution areas of C. deserticola are distributed in the Xinjiang Uygur Autonomous Region, the junction of Shaanxi–Gansu–Ningxia provinces, and the Inner Mongolia Autonomous Region. The spatial dispersion would intensify with the increasing of emission scenarios, and the geographical habitat is moving towards higher latitude. Among the three evaluation indexes, the area under the ROC curve (AUC) and True Skill Statistic (TSS) have better assessment results. The main bioclimatic factors affecting the distribution are min temperature of coldest month (Bio6), annual precipitation (Bio12), precipitation of wettest month (Bio13), precipitation of wettest quarter (Bio16), and precipitation of warmest quarter (Bio18), among which the importance of precipitation factors is greater than temperature factors. More importantly, the results of this study could provide some guidance for the improvement of desert forest system, the protection of endangered species and the further improvement of the ecological environment.
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Lawal IA, Klink M, Ndungu P, Moodley B. Brief bibliometric analysis of "ionic liquid" applications and its review as a substitute for common adsorbent modifier for the adsorption of organic pollutants. Environ Res 2019; 175:34-51. [PMID: 31102948 DOI: 10.1016/j.envres.2019.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/12/2019] [Accepted: 05/06/2019] [Indexed: 05/21/2023]
Abstract
The importance of improving adsorbent's adsorption efficiency in organic pollutants has been reported by many researchers. Surfactant-based modified adsorbents were a tasteful choice. As a result, the use of surfactants as a modifier for removing organic pollutants has shown to play a very big role in enhancing the adsorption efficiency of different materials. Ionic liquids are receiving extensive interest as green multipurpose compounds, primarily as a replacement for traditional chemicals that are used in many chemical processes. This work gives a brief bibliometric analysis of application of ionic liquid from 1930 to 2017, documents were collected from Scopus database and keywords from the abstracts and titles were analyzed using VOSviewer software. Furthermore, the work presents a review of conventionally known surfactants and the recent likelihood of ionic liquids for modifying adsorbents for adsorption of organic pollutants. Over the period of years between 1930 and 2017, 13,144 documents were published on the application of ionic liquids. VOSviewer software further confirms that adsorption is one of the leading areas in applications of ionic liquids. Review also showed that ionic liquid is a good modifier of adsorbents.
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Affiliation(s)
- Isiaka A Lawal
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Applied Chemistry, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa; Chemistry Department Faculty of Applied and Computer Science, Vaal University of Technology, Vanderbijlpark Campus, Boulevard, 1900, Vanderbijlpark, South Africa.
| | - Michael Klink
- Chemistry Department Faculty of Applied and Computer Science, Vaal University of Technology, Vanderbijlpark Campus, Boulevard, 1900, Vanderbijlpark, South Africa
| | - Patrick Ndungu
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Applied Chemistry, University of Johannesburg, Doornfontein 2028, Johannesburg, South Africa.
| | - Brenda Moodley
- School of Chemistry and Physics, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, P/Bag X45001, Westville Campus, Durban, 4000, South Africa
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Xiang Y, Gao M, Shen T, Cao G, Zhao B, Guo S. Comparative study of three novel organo-clays modified with imidazolium-based gemini surfactant on adsorption for bromophenol blue. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110928] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Zhang Y, Yang L, Wang YH, Liu AH. MoxPy nanoparticles supported on mesh structural carbon from biomass for rapid selective dyes adsorption. Talanta 2019; 196:9-17. [DOI: 10.1016/j.talanta.2018.11.109] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/27/2018] [Accepted: 11/29/2018] [Indexed: 10/27/2022]
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Mahmoodi NM, Taghizadeh M, Taghizadeh A. Ultrasound-assisted green synthesis and application of recyclable nanoporous chromium-based metal-organic framework. KOREAN J CHEM ENG 2018. [DOI: 10.1007/s11814-018-0162-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ghaedi AM, Panahimehr M, Nejad ARS, Hosseini SJ, Vafaei A, Baneshi MM. Factorial experimental design for the optimization of highly selective adsorption removal of lead and copper ions using metal organic framework MOF-2 (Cd). J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.051] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Abstract
AbstractZinc oxide nano falcates of sickle shape have been synthesized fromPrunus cerasiferapomological extract as a reducing cum stabilizing agent via novel, biomimetic and non-toxic route. Zinc oxide nano falcates were analyzed via ultraviolet spectroscopy, Fourier transform infrared analysis, X-ray powder diffraction, scanning electron microscopy and atomic force microscopy. Highly stable zinc oxide nano falcates synthesized at 200°C and 400°C calcination temperatures expressed intense UV-vis peak at 398 nm. Phenolic and amino groups were revealed by FTIR in pomological extract. Wurtzite crystalline structure of zinc oxide nano falcates was confirmed by XRD with average crystal size of 4.93 nm. SEM sizes ranged between 72.11-120 nm and 56.57-107.70 nm, respectively and shown higher polydispersity levels for two calcination temperatures. Augmented photocatalytic degradation of methyl red and bromophenol blue under direct solar irradiance shown pseudo first order kinetics (R2= 0.99 and 0.96). Furthermore, biomedical and agriculturally important pathogenic strains i.e.,Xanthomanas axonopodispv.citriandPseudomonas syringae,Aspergillus niger,Aspergillus flavus,Aspergillus fumigatus,Aspergillus terreus,Penicillium chrysogenum,Fusarium solaniandLasiodiplodia theobromaewere remarkably inhibited. Enhanced photocatalytic and antimicrobial activity reveals zinc oxide nano falcates promising prospects in nano bioremediation of polluted water and conversion into green nano pesticides.
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Affiliation(s)
- Shaan Bibi Jaffri
- Department of Environmental Sciences, Fatima Jinnah Women University, The Mall, 46000, Rawalpindi, Pakistan
| | - Khuram Shahzad Ahmad
- Department of Environmental Sciences, Fatima Jinnah Women University, The Mall, 46000, Rawalpindi, Pakistan
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Javadian H, Ghasemi M, Ruiz M, Sastre AM, Asl SMH, Masomi M. Fuzzy logic modeling of Pb (II) sorption onto mesoporous NiO/ZnCl 2-Rosa Canina-L seeds activated carbon nanocomposite prepared by ultrasound-assisted co-precipitation technique. Ultrason Sonochem 2018; 40:748-762. [PMID: 28946482 DOI: 10.1016/j.ultsonch.2017.08.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 08/22/2017] [Accepted: 08/22/2017] [Indexed: 06/07/2023]
Abstract
In this study, NiO/Rosa Canina-L seeds activated carbon nanocomposite (NiO/ACNC) was prepared by adding dropwise NaOH solution (2mol/L) to raise the suspension pH to around 9 at room temperature under ultrasonic irradiation (200W) as an efficient method and characterized by FE-SEM, FTIR and N2 adsorption-desorption isotherm. The effect of different parameters such as contact time (0-120min), initial metal ion concentration (25-200mg/L), temperature (298, 318 and 333K), amount of adsorbent (0.002-0.007g) and the solution's initial pH (1-7) on the adsorption of Pb (II) was investigated in batch-scale experiments. The equilibrium data were well fitted by Langmuir model type 1 (R2>0.99). The maximum monolayer adsorption capacity (qm) of NiO/ACNC was 1428.57mg/L. Thermodynamic parameters (ΔG°, ΔH° and ΔS°) were also calculated. The results showed that the adsorption of Pb (II) onto NiO/ACNC was feasible, spontaneous and exothermic under studied conditions. In addition, a fuzzy-logic-based model including multiple inputs and one output was developed to predict the removal efficiency of Pb (II) from aqueous solution. Four input variables including pH, contact time (min), dosage (g) and initial concentration of Pb (II) were fuzzified using an artificial intelligence-based approach. The fuzzy subsets consisted of triangular membership functions with eight levels and a total of 26 rules in the IF-THEN approach which was implemented on a Mamdani-type of fuzzy inference system. Fuzzy data exhibited small deviation with satisfactory coefficient of determination (R2>0.98) that clearly proved very good performance of fuzzy-logic-based model in prediction of removal efficiency of Pb (II). It was confirmed that NiO/ACNC had a great potential as a novel adsorbent to remove Pb (II) from aqueous solution.
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Affiliation(s)
- Hamedreza Javadian
- Universitat Politècnica de Catalunya, Department of Chemical Engineering, ETSEIB, Diagonal 647, 08028 Barcelona, Spain; Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran.
| | - Maryam Ghasemi
- Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran
| | - Montserrat Ruiz
- Universitat Politècnica de Catalunya, Department of Chemical Engineering, EPSEVG, Av. Víctor Balaguer, s/n, 08800 Vilanova i la Geltrú, Spain
| | - Ana Maria Sastre
- Universitat Politècnica de Catalunya, Department of Chemical Engineering, ETSEIB, Diagonal 647, 08028 Barcelona, Spain
| | | | - Mojtaba Masomi
- Ayatollah Amoli Branch, Department of Chemical Engineering, Islamic Azad University, Amol, Iran
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Ahmadi Azqhandi M, Ghaedi M, Yousefi F, Jamshidi M. Application of random forest, radial basis function neural networks and central composite design for modeling and/or optimization of the ultrasonic assisted adsorption of brilliant green on ZnS-NP-AC. J Colloid Interface Sci 2017; 505:278-292. [DOI: 10.1016/j.jcis.2017.05.098] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 05/19/2017] [Accepted: 05/25/2017] [Indexed: 12/28/2022]
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Abdi J, Vossoughi M, Mahmoodi NM, Alemzadeh I. Synthesis of amine-modified zeolitic imidazolate framework-8, ultrasound-assisted dye removal and modeling. Ultrason Sonochem 2017; 39:550-564. [PMID: 28732980 DOI: 10.1016/j.ultsonch.2017.04.030] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 05/22/2023]
Abstract
The present research is focused on the ultrasound assisted adsorption of Acid blue 92 (AB92) and Direct red 80 (DR80) as anionic dyes in single and binary systems onto zeolitic imidazolate framework (ZIF-8) functionalized with 3-Aminopropyltrimethoxysilane (APTES). Different techniques such as Fourier transform infrared (FTIR), scanning electron microscope (SEM), field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) and thermogravimetric analyses (TGA) were used to characterize the prepared adsorbent. The individual effects and possible interactions between the various parameters including adsorbent dosage, sonication time, initial dye concentrations and pH on dyes removal efficiency were investigated by response surface methodology (RSM). The optimized experimental conditions were fixed at adsorbent dosage 0.005g for AB92 and 0.01g for DR80, pH 2.1, sonication time 15min, and initial dyes concentration 15mgL-1 to get maximum removal percentage (>95.0%). A reliable and intelligent model based on least-squares support vector machine (LS-SVM) was developed to predict dye removal efficiency. The root mean square error (RMSE) of 0.604, 0.734 and 1.549 with high determination coefficient (R2) of 0.999, 0.996 and 0.997 for AB92, DR80 and binary system, respectively, were able to predict and model the adsorption process. The presented model illustrates better performance in predicting dye removal efficiency compared to the kinetic models. The results showed that the adsorption process had better conformation with pseudo-second order model. The adsorption equilibrium data was investigated by Langmuir, Freundlich, Tempkin and Dubinin-Radushkevich isotherm models and the data were well fitted by Langmuir model with maximum adsorption capacity of 633.4 and 500.2mgg-1 for AB92 and DR80 dyes, respectively. APTES@ZIF-8 was regenerated and found to be reusable after four successive cycles without considerable loss in adsorption capacity.
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Affiliation(s)
- Jafar Abdi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran; Department of Environmental Research, Institute for Color Science and Technology, Tehran, Iran
| | - Manouchehr Vossoughi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran.
| | - Niyaz Mohammad Mahmoodi
- Department of Environmental Research, Institute for Color Science and Technology, Tehran, Iran
| | - Iran Alemzadeh
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
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Ghaedi AM, Vafaei A. Applications of artificial neural networks for adsorption removal of dyes from aqueous solution: A review. Adv Colloid Interface Sci 2017; 245:20-39. [PMID: 28473053 DOI: 10.1016/j.cis.2017.04.015] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 04/24/2017] [Accepted: 04/24/2017] [Indexed: 11/20/2022]
Abstract
Artificial neural networks (ANNs) have been widely applied for the prediction of dye adsorption during the last decade. In this paper, the applications of ANN methods, namely multilayer feedforward neural networks (MLFNN), support vector machine (SVM), and adaptive neuro fuzzy inference system (ANFIS) for adsorption of dyes are reviewed. The reported researches on adsorption of dyes are classified into four major categories, such as (i) MLFNN, (ii) ANFIS, (iii) SVM and (iv) hybrid with genetic algorithm (GA) and particle swarm optimization (PSO). Most of these papers are discussed. The further research needs in this field are suggested. These ANNs models are obtaining popularity as approaches, which can be successfully employed for the adsorption of dyes with acceptable accuracy.
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Ashrafi M, Arab Chamjangali M, Bagherian G, Goudarzi N. Application of linear and non-linear methods for modeling removal efficiency of textile dyes from aqueous solutions using magnetic Fe 3O 4 impregnated onto walnut shell. Spectrochim Acta A Mol Biomol Spectrosc 2017; 171:268-279. [PMID: 27541799 DOI: 10.1016/j.saa.2016.07.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 07/09/2016] [Accepted: 07/31/2016] [Indexed: 05/24/2023]
Abstract
The performance of the Nano-magnetite Fe3O4 impregnated onto walnut shell (Fe3O4-WNS), which possessed the adsorption features of walnut shell and the magnetic property of Fe3O4, was investigated for the elimination of the methyl violet and Rhodamine 6G from contaminated aqueous solutions. The effects of different experimental variables on the removal efficiency of the cited dyes were examined. Then these variables were used as the inputs to generate linear and non-linear models such as the multiple linear regression, random forest, and artificial neural network to predict the removal efficiency of these dye species at different experimental conditions. The validation studies of these models were performed using the test set, which was not present in the modeling procedure. It was found that ANN had a higher ability to predict the adsorption process under different experimental conditions, and could be applied for the development of an automated dye wastewater removal plant. Also the maximum adsorption capacity (qmax) indicated that the qmax value for Fe3O4-WNS for removal of cationic dyes was comparable or better than that for some reported adsorbents. Also it should be cited that exhausted Fe3O4-WNS was regenerated using dishwashing liquid, and reused for removal of the cited dye species from aqueous solutions.
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Affiliation(s)
- Motahare Ashrafi
- College of Chemistry, Shahrood University of Technology, Shahrood, P.O. Box 36155-316, Iran
| | | | - Ghadamali Bagherian
- College of Chemistry, Shahrood University of Technology, Shahrood, P.O. Box 36155-316, Iran.
| | - Nasser Goudarzi
- College of Chemistry, Shahrood University of Technology, Shahrood, P.O. Box 36155-316, Iran
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Dil EA, Ghaedi M, Asfaram A, Hajati S, Mehrabi F, Goudarzi A. Preparation of nanomaterials for the ultrasound-enhanced removal of Pb 2+ ions and malachite green dye: Chemometric optimization and modeling. Ultrason Sonochem 2017; 34:677-691. [PMID: 27773295 DOI: 10.1016/j.ultsonch.2016.07.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 07/02/2016] [Accepted: 07/03/2016] [Indexed: 05/20/2023]
Abstract
Copper oxide nanoparticle-loaded activated carbon (CuO-NP-AC) was synthesized and characterized using different techniques such as FE-SEM, XRD and FT-IR. It was successfully applied for the ultrasound-assisted simultaneous removal of Pb2+ ions and malachite green (MG) dye in binary system from aqueous solution. The effect of important parameters was modeled and optimized by artificial neural network (ANN) and response surface methodology (RSM). Maximum simultaneous removal percentages (>99.0%) were found at 25mgL-1, 20mgL-1, 0.02g, 5min and 6.0 corresponding to initial Pb2+ concentration, initial MG concentration, CuO-NP-AC amount, ultrasonication time and pH, respectively. The precision of the equation obtained by RSM was confirmed by the analysis of variance and calculation of correlation coefficient relating the predicted and the experimental values of ultrasound-assisted simultaneous removal of the analytes. A good agreement between experimental and predicted values was observed. A feed-forward neural network with a topology optimized by response surface methodology was successfully applied for the prediction of ultrasound-assisted simultaneous removal of Pb2+ ions and MG dye in binary system by CuO-NPs-AC. The number of hidden neurons, MSE, R2, number of epochs and error histogram were chosen for ANN modeling. Then, Langmuir, Freundlich, Temkin and D-R isothermal models were applied for fitting the experimental data. It was found that the Langmuir model well describes the isotherm data with a maximum adsorption capacity of 98.328 and 87.719mgg-1 for Pb2+ and MG, respectively. Kinetic studies at optimum condition showed that maximum Pb2+ and MG adsorption is achieved within 5min of the start of most experiments. The combination of pseudo-second-order rate equation and intraparticle diffusion model was applicable to explain the experimental data of ultrasound-assisted simultaneous removal of Pb2+ and MG at optimum condition obtained from RSM.
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Affiliation(s)
| | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
| | - Arash Asfaram
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
| | - Shaaker Hajati
- Department of Physics, Yasouj University, Yasouj 75918-74831, Iran; Department of Semiconductors, Materials and Energy Research Center, Karaj 3177983634, Iran.
| | - Fatemeh Mehrabi
- Chemistry Department, Gachsaran Branch, Islamic Azad University, Gachsaran 75818-63876, Iran
| | - Alireza Goudarzi
- Department of Polymer Engineering, Golestan University, Gorgan 49188-88369, Iran
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Gupta VK, Agarwal S, Tyagi I, Sohrabi M, Fakhri A, Rashidi S, Sadeghi N. Microwave-assisted hydrothermal synthesis and adsorption properties of carbon nanofibers for methamphetamine removal from aqueous solution using a response surface methodology. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.07.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mazaheri H, Ghaedi M, Asfaram A, Hajati S. Performance of CuS nanoparticle loaded on activated carbon in the adsorption of methylene blue and bromophenol blue dyes in binary aqueous solutions: Using ultrasound power and optimization by central composite design. J Mol Liq 2016; 219:667-76. [DOI: 10.1016/j.molliq.2016.03.050] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Agarwal S, Tyagi I, Gupta VK, Ghaedi M, Masoomzade M, Ghaedi A, Mirtamizdoust B. RETRACTED: Kinetics and thermodynamics of methyl orange adsorption from aqueous solutions—artificial neural network-particle swarm optimization modeling. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.048] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ghaedi A, Ghaedi M, Pouranfard A, Ansari A, Avazzadeh Z, Vafaei A, Tyagi I, Agarwal S, Gupta VK. Adsorption of Triamterene on multi-walled and single-walled carbon nanotubes: Artificial neural network modeling and genetic algorithm optimization. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.01.068] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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