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Furth NR, Imel AE, Zawodzinski TA. Comparison of Machine Learning Approaches for Prediction of the Equivalent Alkane Carbon Number for Microemulsions Based on Molecular Properties. J Phys Chem A 2024; 128:6763-6773. [PMID: 39106405 DOI: 10.1021/acs.jpca.4c00936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2024]
Abstract
The chemical properties of oils are vital in the design of microemulsion systems. The hydrophilic-lipophilic difference equation used to predict microemulsions' phase behavior expresses the oils' physiochemical properties as the equivalent alkane carbon number (EACN). The experimental determination of EACN requires knowledge of the temperature dependence of the microemulsion system and the effects of different surfactant concentrations. Thus, the experimental determination is time-intensive and tedious, requiring days to months for proper separations. Furthermore, the experiments require high purity of chemicals because microemulsions are sensitive to impurities. Our work focuses on the quick and reliable predictions of the EACN with machine learning (ML) models. Due to the immaturity of ML chemical predictions, we compare three graph neural networks (GNNs) and a gradient-boosted tree algorithm, known as XGBoost. The GNNs use the molecular structures represented as simplified molecular-input line-entry system (SMILES) codes for the initial input, which allows us to assess whether geometry optimization is necessary for reliable results. The XGBoost model also begins with the SMILES representations of the molecules but uses molecular descriptors instead of geometry optimizations. The best model tested (crystal graph convolutional neural network with Merck molecular force field-94) has an error of 1.15 EACN units of the true EACN for unknown data with the errors skewed toward zero and an R2 score of 0.9.
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Affiliation(s)
- Nicholas R Furth
- Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee Knoxville 310 Ferris Hall, 1508 Middle Drive, Knoxville, Tennessee 37996, United States
- University of Tennessee-Oak Ridge Innovation Institute, Oak-Ridge, Tennessee 37831, United States
| | - Adam E Imel
- University of Tennessee-Oak Ridge Innovation Institute, Oak-Ridge, Tennessee 37831, United States
- Department of Chemical and Biomolecular Engineering, University of Tennessee 419 Dougherty Engineer Building, 1512 Middle Drive, Knoxville, Tennessee 37996, United States
| | - Thomas A Zawodzinski
- Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee Knoxville 310 Ferris Hall, 1508 Middle Drive, Knoxville, Tennessee 37996, United States
- University of Tennessee-Oak Ridge Innovation Institute, Oak-Ridge, Tennessee 37831, United States
- Department of Chemical and Biomolecular Engineering, University of Tennessee 419 Dougherty Engineer Building, 1512 Middle Drive, Knoxville, Tennessee 37996, United States
- Energy Storage and Membrane Materials Group, Oak Ridge National Laboratory, Oak-Ridge, Tennessee 37831, United States
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Li L, Qu J, Liu W, Peng B, Cong S, Yu H, Zhang B, Li Y. Advancements in Characterization Techniques for Microemulsions: From Molecular Insights to Macroscopic Phenomena. Molecules 2024; 29:2901. [PMID: 38930964 PMCID: PMC11206267 DOI: 10.3390/molecules29122901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/09/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Microemulsions are thermodynamically stable, optically isotropic, transparent, or semi-transparent mixed solutions composed of two immiscible solvents stabilized by amphiphilic solutes. This comprehensive review explores state-of-the-art techniques for characterizing microemulsions, which are versatile solutions essential across various industries, such as pharmaceuticals, food, and petroleum. This article delves into spectroscopic methods, nuclear magnetic resonance, small-angle scattering, dynamic light scattering, conductometry, zeta potential analysis, cryo-electron microscopy, refractive index measurement, and differential scanning calorimetry, examining each technique's strengths, limitations, and potential applications. Emphasizing the necessity of a multi-technique approach for a thorough understanding, it underscores the importance of integrating diverse analytical methods to unravel microemulsion structures from molecular to macroscopic scales. This synthesis provides a roadmap for researchers and practitioners, fostering advancements in microemulsion science and its wide-ranging industrial applications.
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Affiliation(s)
- Longfei Li
- Research Institute of Petroleum Exploration and Development, Beijing 100083, China; (L.L.); (J.Q.); (B.P.); (S.C.); (B.Z.); (Y.L.)
- College of New Energy and Materials, China University of Petroleum-Beijing, Beijing 102249, China;
- National Elite Institute of Engineering, China National Petroleum Corporation (CNPC), Beijing 102200, China
| | - Jiepeng Qu
- Research Institute of Petroleum Exploration and Development, Beijing 100083, China; (L.L.); (J.Q.); (B.P.); (S.C.); (B.Z.); (Y.L.)
- National Elite Institute of Engineering, China National Petroleum Corporation (CNPC), Beijing 102200, China
- School of Rare Earth, University of Science and Technology of China, Hefei 230026, China
| | - Weidong Liu
- Research Institute of Petroleum Exploration and Development, Beijing 100083, China; (L.L.); (J.Q.); (B.P.); (S.C.); (B.Z.); (Y.L.)
| | - Baoliang Peng
- Research Institute of Petroleum Exploration and Development, Beijing 100083, China; (L.L.); (J.Q.); (B.P.); (S.C.); (B.Z.); (Y.L.)
| | - Sunan Cong
- Research Institute of Petroleum Exploration and Development, Beijing 100083, China; (L.L.); (J.Q.); (B.P.); (S.C.); (B.Z.); (Y.L.)
| | - Haobo Yu
- College of New Energy and Materials, China University of Petroleum-Beijing, Beijing 102249, China;
| | - Biao Zhang
- Research Institute of Petroleum Exploration and Development, Beijing 100083, China; (L.L.); (J.Q.); (B.P.); (S.C.); (B.Z.); (Y.L.)
| | - Yingying Li
- Research Institute of Petroleum Exploration and Development, Beijing 100083, China; (L.L.); (J.Q.); (B.P.); (S.C.); (B.Z.); (Y.L.)
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Mo Y, Dong J, Zhao H. Field demonstration of in-situ microemulsion flushing for enhanced remediation of multiple chlorinated solvents contaminated aquifer. JOURNAL OF HAZARDOUS MATERIALS 2024; 463:132772. [PMID: 37844517 DOI: 10.1016/j.jhazmat.2023.132772] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/27/2023] [Accepted: 10/10/2023] [Indexed: 10/18/2023]
Abstract
The remediation of in-situ microemulsion flushing for multiple chlorinated solvents contaminated groundwater is challenging, because different chlorinated solvent has major influence on microemulsion formation and solubilization behaviors. This work was conducted to evaluate the remediation effectiveness for various chlorinated solvents contaminated site and monitor the disturbance of groundwater during in-situ microemulsion flushing process. Groundwater at this site was contaminated with chlorobenzene (MCB), chloroaniline and nitrochlorobenzene. The medium layer was mainly composed of fine and silty sand, with average hydraulic conductivity of 4.97 m/d. Results of this field-scale test indicated in-situ microemulsion flushing successfully enhanced the apparent solubility of various chlorinated solvents. Post-flushing concentration of various chlorinated solvents were 1.33-71.6-fold the concentration of pre-flushing values at 10 sampling locations within the test zone. This field was flushed with 16.8 m3 microemulsion, removing approximately 18.49 kg chlorinated solvents. Besides, a trend in the desorption order of various chlorinated solvents was observed. The least hydrophobic pollutant was flushed first, followed by contaminants of increasing hydrophobicity. In addition, during remediation process, the indexes of groundwater fluctuated insignificantly, indicating the reagent had little disturbance to aquifer. This field work demonstrated the feasibility of in-situ microemulsion enhanced remediation via increasing apparent solubility of multiple chlorinated solvents.
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Affiliation(s)
- Yanyang Mo
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Chang Chun 130021, China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, Jilin University, Changchun 130021, China
| | - Jun Dong
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Chang Chun 130021, China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, Jilin University, Changchun 130021, China.
| | - Haifeng Zhao
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Chang Chun 130021, China; National and Local Joint Engineering Laboratory for Petrochemical Contaminated Site Control and Remediation Technology, Jilin University, Changchun 130021, China
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4
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Surfactant effect on mass transfer characteristics in the generation and flow stages of gas–liquid Taylor flow in a microchannel. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Shang Z, Xu P, Ke Z, Yao M, Li X. Diesel removal and recovery from heavily diesel-contaminated soil based on three-liquid-phase equilibria of diesel + 2-butyloxyethanol + water. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130061. [PMID: 36182881 DOI: 10.1016/j.jhazmat.2022.130061] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 09/01/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Diesel contamination poses a serious threat to ecosystem and human health. This study proposes a novel method for simultaneous diesel removal and recovery from heavily diesel-contaminated soil by washing based on three-liquid-phase equilibria of diesel+2-butoxyethanol+water. This work covers both theoretical-cum-experimental explorations. For this brand-new ternary three-liquid-phase system (TPS), Ternary-Gibbs and Fish-Shaped phase diagrams were constructed through the phase behavior investigation to provide theoretical support for diesel removal/recovery. As the experiment demonstrated, the removal efficiency was up to 87.5 % for the contaminated soil with diesel content of 226,723 mg/kg, and the recovery rate reached 73.8 %. In addition, the TPS could also be used continuously during the washing process while avoiding solution purification, and the detached diesel would automatically float into the top phase without complicated separation. The mechanism of diesel removal was determined as the surface "stripping" effect based on ultralow interfacial tension, and the enhanced process involved "stripping+dissolution". The treated soil contained almost negligible organic solvent residue and was therefore appropriate for plant cultivation. The recovered diesel exhibited less variation from commercial diesel in composition and properties, possessing a higher potential for reuse. Moreover, this study also provided key insights into the residual mechanisms of recalcitrant hydrocarbons in the soil.
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Affiliation(s)
- Zhijie Shang
- Department of Chemistry and Chemical Engineering, University of Science and Technology Beijing, Beijing 100083, PR China.
| | - Pan Xu
- Department of Chemistry and Chemical Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Zhenyu Ke
- Department of Chemistry and Chemical Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Meiling Yao
- Department of Chemistry and Chemical Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Xinxue Li
- Department of Chemistry and Chemical Engineering, University of Science and Technology Beijing, Beijing 100083, PR China.
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Li J, Ma N, Hao B, Qin F, Zhang X. Coupling biostimulation and phytoremediation for the restoration of petroleum hydrocarbon-contaminated soil. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:706-716. [PMID: 35900160 DOI: 10.1080/15226514.2022.2103511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Total petroleum hydrocarbons (TPH) continue to be among the most common pollutants in soil worldwide. Bioremediation and phytoremediation have become sustainable ways of dealing with TPH contamination and biostimulation-assisted phytoremediation is considered as a potential approach for the treatment of pollutants. In this study, the response surface was used to optimize the single-factor biological stimulation experiment of moisture content, leavening agent content and compound fertilizer content and got the best experimental plan of biological stimulation. It was found that TPH degradation rate was 28.6% by biostimulation after 70 days. Further, from 20 kinds of plant seeds, 5 kinds of suitable or growth and high germination rate were selected for petroleum hydrocarbon degradation experiment. In the phytoremediation, peanut was selected as the best plant species by measuring the TPH degradation rate, bacteria count, growth of test plants, germination rate and amount of catalase in the soil and it could achieved 31.1% degradation rate of petroleum hydrocarbons after 70 days. Finally, the artificial biostimulation and phytoremediation combined degradation experiment of petroleum hydrocarbons-contaminated soil was designed and it achieved 38.9% TPH degradation rate after 70 days.
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Affiliation(s)
- Jing Li
- State Key Laboratory of Pollutants Control and Pretreatment in Petroleum and Petrochemical Industry, Beijing, China
- Department of Environment and Safety Engineering, China University of Petroleum (East China), Qingdao, China
| | - Nian Ma
- State Key Laboratory of Pollutants Control and Pretreatment in Petroleum and Petrochemical Industry, Beijing, China
| | - Boyu Hao
- State Key Laboratory of Pollutants Control and Pretreatment in Petroleum and Petrochemical Industry, Beijing, China
| | - Feifei Qin
- State Key Laboratory of Pollutants Control and Pretreatment in Petroleum and Petrochemical Industry, Beijing, China
| | - Xiuxia Zhang
- State Key Laboratory of Pollutants Control and Pretreatment in Petroleum and Petrochemical Industry, Beijing, China
- Department of Environment and Safety Engineering, China University of Petroleum (East China), Qingdao, China
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Mirzamani M, Reeder RC, Jarus C, Aswal V, Hammouda B, Jones RL, Smith ED, Kumari H. Effects of a Multicomponent Perfume Accord and Dilution on the Formation of ST2S/CAPB Mixed-Surfactant Microemulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:1334-1347. [PMID: 35051338 DOI: 10.1021/acs.langmuir.1c02323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Perfume mixtures contain perfume raw materials (PRMs) with varying structures and hydrophobicities, which influence PRM localization within a surfactant-based formulation and thereby affect the phase behavior. In rinse-off products, the addition of water can further affect the phase behavior. In this study, a mixture of 12 PRMs was used as the oil phase in an aqueous system consisting of sodium trideceth-2 sulfate as a primary surfactant, cocamidopropyl betaine as a cosurfactant, and dipropylene glycol as a cosolvent. A series of phase diagrams were constructed with increasing water content, simulating the use conditions for rinse-off products, to determine how the phase boundaries shift with dilution. Using these phase diagrams, the compositions of interest in the micelle without perfume, micelle with perfume, microemulsion, and micelle-microemulsion transition regions were identified at each dilution level. The structural changes were probed through combined small-angle neutron scattering (SANS) and cryo-transmission electron microscopy analyses. The SANS results showed that ellipsoidal micelles were maintained as the perfume content and the dilution level increased. With ≥50 wt % water, increasing the perfume content increased the micelle volume. Interestingly, a higher rate of volume increase was observed at ≥70 wt % water. Notably, the volumes of the micelles with and without perfume increased steadily with dilution, whereas the volumes of the assemblies in the transition region and the microemulsion region increased more rapidly once diluted to 70 and 80 wt % water, respectively.
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Affiliation(s)
- Marzieh Mirzamani
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, Ohio 45219-0004, United States
| | - Robert C Reeder
- Procter & Gamble Co., 11520 Reed Hartman Hwy, Blue Ash, Ohio 45241, United States
| | - Cassandra Jarus
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, Ohio 45219-0004, United States
| | - Vinod Aswal
- Bhabha Atomic Research Center, Mumbai 400094, Maharashtra, India
| | - Boualem Hammouda
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-6102, United States
| | - Ronald L Jones
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-6102, United States
| | - Edward D Smith
- Procter & Gamble Co., 11520 Reed Hartman Hwy, Blue Ash, Ohio 45241, United States
| | - Harshita Kumari
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, Ohio 45219-0004, United States
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Calcium Carbonate@silica Composite with Superhydrophobic Properties. Molecules 2021; 26:molecules26237180. [PMID: 34885758 PMCID: PMC8658991 DOI: 10.3390/molecules26237180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/18/2021] [Accepted: 11/24/2021] [Indexed: 11/29/2022] Open
Abstract
In this paper, spherical calcium carbonate particles were prepared by using CaCl2 aqueous solution + NH3·H2O + polyoxyethylene octyl phenol ether-10 (OP-10) + n-butyl alcohol + cyclohexane inverse micro emulsion system. Then, nanoscale spherical silica was deposited on the surface of micron calcium carbonate by Stöber method to form the composite material. Scanning electron microscope (SEM), X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS) were used to characterize the morphology and structure of the composite material. It is found that the surface of the composite material has a micro-nano complex structure similar to the surface of a “lotus leaf”, making the composite material show hydrophobicity. The contact angle of the cubic calcium carbonate, spherical calcium carbonate and CaCO3@SiO2 composite material were measured. They were 51.6°, 73.5°, and 76.8°, respectively. After modification with stearic acid, the contact angle of cubic and spherical CaCO3 were 127.1° and 136.1°, respectively, while the contact angle of CaCO3@SiO2 composite was 151.3°. These results showed that CaCO3@SiO2 composite had good superhydrophobicity, and the influence of material roughness on its hydrophobicity was investigated using the Cassie model theory.
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Zhang S, Zhang S, Luo S, Wu D. Therapeutic agent-based infinite coordination polymer nanomedicines for tumor therapy. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214059] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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10
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Kittithammavong V, Charoensaeng A, Khaodhiar S. Effect of Ethylene Oxide Group in the
Anionic–Nonionic
Mixed Surfactant System on Microemulsion Phase Behavior. J SURFACTANTS DETERG 2020. [DOI: 10.1002/jsde.12475] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Sutha Khaodhiar
- Department of Environmental Engineering Chulalongkorn University Thailand
- Center of Excellence on Hazardous Substance Management Chulalongkorn University Thailand
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