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Xin Z, Zhang Y, Hou D, Sun H, Ding Z, Wang P, Wang M, Wang X, Xu Q, Guan J, Yang J, Liu Y, Zhang L. Atomic Insights into the Relationship between Molecular Structure and Dispersion Performance of Phenyl Polymer on Graphene Oxide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:413-425. [PMID: 38133590 DOI: 10.1021/acs.langmuir.3c02648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
The adsorption of organic polymers onto the surface of graphene oxide is known to improve its dispersibility in cement-based materials. However, the mechanism of this improvement at the atomic level is not yet fully understood. In this study, we employ a combination of DFT static calculation and umbrella sampling to explore the reactivity of polymers and investigate the effects of varying amounts of phenyl groups on their adsorption capacity on the surface of graphene oxide. Quantitative analysis is utilized to study the structural reconstruction and charge transfer caused by polymers from multiple perspectives. The interfacial reaction between the polymer and graphene oxide surface is further clarified, indicating that the adsorption process is promoted by hydrogen bond interactions and π-π stacking effects. This study sheds light on the adsorption mechanism of polymer-graphene oxide systems and has important implications for the design of more effective graphene oxide dispersants at the atomic level.
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Affiliation(s)
- Zhaorui Xin
- Department of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Yue Zhang
- Department of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Dongshuai Hou
- Department of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Huiwen Sun
- Department of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Zhiheng Ding
- Department of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Pan Wang
- Department of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Muhan Wang
- Department of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Xinpeng Wang
- Department of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Qingqing Xu
- Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jing Guan
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China
| | - Jiayi Yang
- College of Materials Design and Engineering, Beijing Institute of Fashion and Technology, Beijing 100029, China
| | - Yingchun Liu
- College of Materials Design and Engineering, Beijing Institute of Fashion and Technology, Beijing 100029, China
| | - Liran Zhang
- College of Materials Design and Engineering, Beijing Institute of Fashion and Technology, Beijing 100029, China
- Department of Chemical Engineering, China University of Mining & Technology, Beijing 100083, China
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Alizadeh Sahraei A, Azizi D, Mokarizadeh AH, Boffito DC, Larachi F. Emerging Trends of Computational Chemistry and Molecular Modeling in Froth Flotation: A Review. ACS ENGINEERING AU 2023; 3:128-164. [PMID: 37362006 PMCID: PMC10288516 DOI: 10.1021/acsengineeringau.2c00053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 06/28/2023]
Abstract
Froth flotation is the most versatile process in mineral beneficiation, extensively used to concentrate a wide range of minerals. This process comprises mixtures of more or less liberated minerals, water, air, and various chemical reagents, involving a series of intermingled multiphase physical and chemical phenomena in the aqueous environment. Today's main challenge facing the froth flotation process is to gain atomic-level insights into the properties of its inherent phenomena governing the process performance. While it is often challenging to determine these phenomena via trial-and-error experimentations, molecular modeling approaches not only elicit a deeper understanding of froth flotation but can also assist experimental studies in saving time and budget. Thanks to the rapid development of computer science and advances in high-performance computing (HPC) infrastructures, theoretical/computational chemistry has now matured enough to successfully and gainfully apply to tackle the challenges of complex systems. In mineral processing, however, advanced applications of computational chemistry are increasingly gaining ground and demonstrating merit in addressing these challenges. Accordingly, this contribution aims to encourage mineral scientists, especially those interested in rational reagent design, to become familiarized with the necessary concepts of molecular modeling and to apply similar strategies when studying and tailoring properties at the molecular level. This review also strives to deliver the state-of-the-art integration and application of molecular modeling in froth flotation studies to assist either active researchers in this field to disclose new directions for future research or newcomers to the field to initiate innovative works.
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Affiliation(s)
- Abolfazl Alizadeh Sahraei
- Department
of Chemical Engineering, Université
Laval, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
| | - Dariush Azizi
- Department
of Chemical Engineering, École Polytechnique
de Montréal, 2900 Boulevard Édouard-Montpetit, Montréal H3T 1J4, Canada
| | - Abdol Hadi Mokarizadeh
- School
of Polymer Science and Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Daria Camilla Boffito
- Department
of Chemical Engineering, École Polytechnique
de Montréal, 2900 Boulevard Édouard-Montpetit, Montréal H3T 1J4, Canada
| | - Faïçal Larachi
- Department
of Chemical Engineering, Université
Laval, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada
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Jiang N, Chen S, Wang J, He C, Fang K, Yin H, Liu Y, Li Y, Yu D. Smart thermally responsive perovskite materials: Thermo-chromic application and density function theory calculation. Heliyon 2023; 9:e12845. [PMID: 36704277 PMCID: PMC9871234 DOI: 10.1016/j.heliyon.2023.e12845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/23/2022] [Accepted: 01/04/2023] [Indexed: 01/09/2023] Open
Abstract
With the continuous improvement of human's requirements for temperature control suitable for living, the energy consumption of electrical appliances such as air conditioners has become a major challenge in traditional architectural design. Generally, most of the solar energy passes through the glass to enter and exit the building, but the traditional glass can hardly control the light and heat energy, causing the indoor temperature to change dramatically with the environment. Therefore, it is more urgent to develop green and efficient smart windows. Perovskite is a temperature-adaptive material, which has the ability of phase transition and can adjust its band gap for thermochromic applications. In this work, we study the perovskite-based thermochromic smart window. As a new application of perovskite, a number of experiments have been carried out. However, there is still a lack of theoretical analysis on phase transition mechanisms and crystal structure prediction. Density functional theory (DFT) calculation is the most useful tool in optoelectronics, especially for perovskite crystal. Here, we extracted typical cases from published literature for analysis and comparison and summarized the crystal structure, electronic structure stability, interface engineering, and thermal characteristics employing DFT calculation We believe this work will pave the way for DFT application for the study of thermochromic perovskite.
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Affiliation(s)
- Ning Jiang
- College of Physics, Changchun University of Science and Technology, Changchun, Jilin Province, China
| | - Shuming Chen
- College of Physics, Changchun University of Science and Technology, Changchun, Jilin Province, China
| | - Jintao Wang
- College of Physics, Changchun University of Science and Technology, Changchun, Jilin Province, China
| | - Chenyang He
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, Changchun, Jilin Province, China
| | - Kai Fang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, Changchun, Jilin Province, China
| | - Hanlin Yin
- College of Physics, Changchun University of Science and Technology, Changchun, Jilin Province, China
| | - Yitong Liu
- College of Physics, Changchun University of Science and Technology, Changchun, Jilin Province, China
| | - Ye Li
- College of Physics, Changchun University of Science and Technology, Changchun, Jilin Province, China
- Corresponding author.
| | - Duan Yu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, Changchun, Jilin Province, China
- Corresponding author.
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