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Chuai S, Zhu X, Ye L, Liu Y, Wang Z, Li F. Study on the mechanism of ultrasonic cavitation effect on the surface properties enhancement of TC17 titanium alloy. ULTRASONICS SONOCHEMISTRY 2024; 108:106957. [PMID: 38901304 PMCID: PMC11239707 DOI: 10.1016/j.ultsonch.2024.106957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/04/2024] [Accepted: 06/14/2024] [Indexed: 06/22/2024]
Abstract
In industrial production and scientific research, ultrasonic cavitation technology, with its outstanding physical and chemical processing capabilities, has been widely applied in fields such as material surface modification, chemical synthesis, and biotechnology, becoming a focal point of research and application. This article delves into the effects of different ultrasonic frequencies on cavitation outcomes through the combined use of numerical simulation, fluorescence analysis, and high-speed photography, specifically analyzing the quantitative improvement in the mechanical properties of TC17 titanium alloy under ultrasonic cavitation at frequencies of 20 kHz, 30 kHz, and 40 kHz. The study found that at an ultrasonic frequency of 20 kHz, the maximum expansion radius of cavitation bubbles can reach 51.4 μm, 8.6 times their initial radius. Correspondingly, fluorescence intensity and peak area also increased to 402.8 and 28104, significantly above the baseline level. Moreover, after modification by ultrasonic cavitation, the original machining marks on the surface of TC17 titanium alloy became fainter, with the emergence of new, uniformly distributed microfeatures. The microhardness of the material increased from 373.7 Hv to 383.84 Hv, 396.62 Hv, and 414.06 Hv, with a maximum improvement of 10.8 %. At the same time, surface height difference and roughness significantly decreased (to 3.168 μm and 0.61 μm respectively), with reductions reaching 45.1 % and 42.4 %, indicating a significant improvement in material surface quality. Notably, there is a negative correlation between the improvement of mechanical properties and ultrasonic frequency, suggesting that the improvement effects decrease as ultrasonic frequency increases. This research not only reveals the quantitative relationship between ultrasonic cavitation frequency and material surface modification effects but also provides a solid scientific basis and practical guidance for the application of ultrasonic cavitation technology in surface engineering, signifying the technology's potential for broad application in the future.
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Affiliation(s)
- Shida Chuai
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Xijing Zhu
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China.
| | - Linzheng Ye
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Yao Liu
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Zexiao Wang
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Fei Li
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
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2
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Niu B, E S, Song Q, Xu Z, Han B, Qin Y. Physicochemical reactions in e-waste recycling. Nat Rev Chem 2024:10.1038/s41570-024-00616-z. [PMID: 38862738 DOI: 10.1038/s41570-024-00616-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2024] [Indexed: 06/13/2024]
Abstract
Electronic waste (e-waste) recycling is becoming a global concern owing to its immense quantity, hazardous character and the potential loss of valuable metals. The many processes involved in e-waste recycling stem from a mixture of physicochemical reactions, and understanding the principles of these reactions can lead to more efficient recycling methods. In this Review, we discuss the principles behind photochemistry, thermochemistry, mechanochemistry, electrochemistry and sonochemistry for metal recovery, polymer decomposition and pollutant elimination from e-waste. We also discuss how these processes induce or improve reaction rates, selectivity and controllability of e-waste recycling based on thermodynamics and kinetics, free radicals, chemical bond energy, electrical potential regulation and more. Lastly, key factors, limitations and suggestions for improvements of these physicochemical reactions for e-waste recycling are highlighted, wherein we also indicate possible research directions for the future.
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Affiliation(s)
- Bo Niu
- Key Laboratory of Farmland Ecological Environment of Hebei Province, College of Resources and Environmental Science, Hebei Agricultural University, Baoding, China.
| | - Shanshan E
- College of Mechanical and Electrical Engineering, Hebei Agricultural University, Baoding, China
| | - Qingming Song
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Zhenming Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Bing Han
- School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, The University of Melbourne, Parkville, Victoria, Australia
- School of Engineering, Deakin University, Geelong, Victoria, Australia
| | - Yufei Qin
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
- Jiangxi Green Recycling Co., Ltd, Fengcheng, China
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Alshammari KF. Recent advances of piezo-catalysis and photocatalysis for efficient environmental remediation. LUMINESCENCE 2024; 39:e4808. [PMID: 38890122 DOI: 10.1002/bio.4808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/02/2024] [Accepted: 06/07/2024] [Indexed: 06/20/2024]
Abstract
The efficient degradation of organic pollutants in diverse environmental matrices can be achieved through the synergistic application of piezo-catalysis and photocatalysis. The focus of this study is on understanding the fundamental principles and mechanisms that govern the collaborative action of piezoelectric and photocatalytic materials. Piezoelectric nanomaterials, under mechanical stress, generate piezo-potential, which, when coupled with photocatalysts, enhances the generation and separation of charge carriers. The resulting cascade of redox reactions promotes the degradation of a wide spectrum of organic pollutants. The comprehensive investigation involves a variety of experimental techniques, including advanced spectroscopy and microscopy, to elucidate the intricate interplay between mechanical and photoinduced processes. The influence of key parameters, such as material composition, morphology, and external stimuli on the catalytic performance, is systematically explored. This study contributes to the increasing knowledge of environmental remediation and lays the foundation for the development of advanced technologies using piezo and photocatalysis for sustainable pollutant removal.
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Affiliation(s)
- Khaled F Alshammari
- Department of Criminal Justice and Forensics, King Fahad Security College, Riyadh, Saudi Arabia
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Liu S, Long Z, Liu H, Wang Y, Zhang J, Zhang G, Liang J. Recent advances in ultrasound-Fenton/Fenton-like technology for degradation of aqueous organic pollutants. CHEMOSPHERE 2024; 352:141286. [PMID: 38311041 DOI: 10.1016/j.chemosphere.2024.141286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/20/2024] [Accepted: 01/21/2024] [Indexed: 02/06/2024]
Abstract
Organic pollutants in water are a serious problem because of their widespread presence, harming the ecosystem and human health. Of the commonly used advanced oxidation processes, a hybrid of ultrasound and the Fenton/Fenton-like technology has received increasing attention in treatment of aqueous organic pollutants. This hybrid is effective in degradation of organic pollutants, but its application has not been summarised. Herein, first, the application and influencing factors of this hybrid technology for organic pollutants degradation are introduced. Second, the mechanism of its action is discussed. Third, the current challenges and future perspectives associated with this technology are proposed. This review provides valuable information regarding this technology, deepens the understanding of its mechanisms of organic pollutants degradation and provides a reference for its use in treatment of aquatic environments.
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Affiliation(s)
- Shiqi Liu
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Zeqing Long
- Department of Public Health and Preventive Medicine, Changzhi Medical College, Changzhi, 046000, China
| | - Huize Liu
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Ying Wang
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Jie Zhang
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
| | - Guangming Zhang
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China.
| | - Jinsong Liang
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, 300401, China
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Li C, Ma Y, Shen X, Chen W, Zhou Y, Zhi X. Ultrasonic-assisted supercritical fluid separation removing plasticizers from ganoderma lucidum spores' oil. ULTRASONICS SONOCHEMISTRY 2023; 100:106622. [PMID: 37757601 PMCID: PMC10550761 DOI: 10.1016/j.ultsonch.2023.106622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/04/2023] [Accepted: 09/22/2023] [Indexed: 09/29/2023]
Abstract
Ultrasonic-assisted supercritical fluid separation (USFS) was firstly applied to regulate solubility and remove plasticizers from ganoderma lucidum spores' oil to improve product safety. Separation efficiency was related with four variables, including temperature, pressure and ultrasonic power. The QD-T6A ultrasonic generator probe, which provided for the study with adjustable ultrasonic power 0 W to 800 W and the ultrasonic frequency was 40 kHz, was fixed at the entrance of the primary separation kettle. The optimal separation conditions were determined to be temperature as 15.0 °C, pressure as 18.0 MPa, and ultrasonic power as 360 W of ultrasonic power on the basis of response surface methodology (RSM). Experimental Di-n-butylphthalate (DBP) and Diethyl phthalate (DEP) content were 0.09 mg and 0.04 mg, respectively, which were below the limits for plasticizers. Meanwhile, the total triterpene and ganoderic acid A contents were 6.89 g and 1.10 g, respectively, comparable to conventional supercritical fluid extraction. The experiments with USFS at different power intensities revealed that ultrasonic at a power intensity of 36 W/L and the power density of 0.20 W/cm2 could resolve the separation contradiction between ganoderma lucidum spores' oil and plasticizers. This study revealed that USFS could be an innovation in the field of ultrasonic separation, with numerous potentials uses in pharmaceutical manufacturing.
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Affiliation(s)
- Cunyu Li
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing 210023, China.
| | - Yun Ma
- The Fourth People's Hospital of Taizhou City, Taizhou 225300, China
| | - Xin Shen
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wei Chen
- Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215109, China
| | - Yuqing Zhou
- Jiangsu Hongshou Biological Engineering Co., Ltd, Haian 226623, China
| | - Xinglei Zhi
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Tao Y, Sun X, Wu X, Wu P, He R, Kiani H. Special issue on "Ultrasonic and hydrodynamic intensifications of food and environmental processes: Fundamentals and applications". ULTRASONICS SONOCHEMISTRY 2023; 100:106599. [PMID: 37734968 PMCID: PMC10653953 DOI: 10.1016/j.ultsonch.2023.106599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Affiliation(s)
- Yang Tao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Xun Sun
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Xiaoge Wu
- Environment Science and Engineering College, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Pengfei Wu
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Ronghai He
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Hossein Kiani
- College of Agriculture and Natural resources, University of Tehran, Karaj, Iran
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7
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Bao J, Guo S, Fan D, Cheng J, Zhang Y, Pang X. Sonoactivated Nanomaterials: A potent armament for wastewater treatment. ULTRASONICS SONOCHEMISTRY 2023; 99:106569. [PMID: 37657369 PMCID: PMC10495678 DOI: 10.1016/j.ultsonch.2023.106569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 09/03/2023]
Abstract
The world is currently facing a critical issue of water pollution, with wastewater being a major contributor. It comes from different types of pollutants, including industrial, medical, agricultural, and domestic. Effective treatment of wastewater requires efficient degradation of pollutants and carcinogens prior to discharge. Commonly used methods for wastewater treatment include filtration, adsorption, biodegradation, advanced oxidation processes, and Fenton oxidation, among others.The sonochemical effect refers to the decomposition, oxidation, reduction, and other reactions of pollutant molecules in wastewater upon ultrasound activation, achieving pollutants removal. Furthermore, the micro-flow effect generated by ultrasonic waves creates tiny bubbles and eddies. This significantly increases the contact area and exchange speed of pollutants and dissolved oxygen, thereby accelerating pollutant degradation. Currently, ultrasonic-assisted technology has emerged as a promising approach due to its strong oxidation ability, simple and cheap equipments, and minimal secondary pollution. However, the use of ultrasound in wastewater treatment has some limitations, such as high energy consumption, lengthy treatment time, limited water treatment capacity, stringent water quality requirements, and unstable treatment effects. To address these issues, the combination of enhanced ultrasound with nanotechnology is proposed and has shown great potential in wastewater treatment. Such a combination can greatly improve the efficiency of ultrasonic oxidation, resulting in an improved performance of wastewater purification. This article presents recent progress in the development of sonoactivated nanomaterials for enhanced wastewater disposal. Such nanomaterials are systematically classified and discussed. Potential challenges and future prospects of this emerging technology are also highlighted.
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Affiliation(s)
- Jianfeng Bao
- Functional Magnetic Resonance and Molecular Imaging Key Laboratory of Henan Province, Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450000, China
| | - Shuangshaung Guo
- School of Basic Medical Sciences, Academy of Medical Sciences, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Dandan Fan
- School of Basic Medical Sciences, Academy of Medical Sciences, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Jingliang Cheng
- Functional Magnetic Resonance and Molecular Imaging Key Laboratory of Henan Province, Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450000, China
| | - Yong Zhang
- Functional Magnetic Resonance and Molecular Imaging Key Laboratory of Henan Province, Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450000, China
| | - Xin Pang
- Functional Magnetic Resonance and Molecular Imaging Key Laboratory of Henan Province, Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450000, China.
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Hariri A, Shervani-Tabar MT, Parvizi R. Laser-Produced Cavitation Bubble Behavior in Newtonian and Non-Newtonian Liquid Inside a Rigid Cylinder: Numerical Study of Liquid Disc Microjet Impact Using OpenFOAM. MICROMACHINES 2023; 14:1416. [PMID: 37512727 PMCID: PMC10385214 DOI: 10.3390/mi14071416] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/20/2023] [Accepted: 06/30/2023] [Indexed: 07/30/2023]
Abstract
This study employs OpenFOAM to analyze the behavior of a single laser-produced cavitation bubble in a Newtonian/non-Newtonian fluid inside a rigid cylinder. This research aimed to numerically calculate the impact of liquid disc microjet resulting from the growth and collapse of the laser-produced bubble to the cylinder wall to take advantage of the cavitation phenomenon in various industrial and medical applications, such as modeling how to remove calcification lesions in coronary arteries. In addition, by introducing the main study cases in which a single bubble with different initial conditions is produced by a laser in the center/off-center of a cylinder with different orientations relative to the horizon, filled with a stationary or moving Newtonian/Non-Newtonian liquid, the general behavior of the bubble in the stages of growth and collapse and the formation of liquid disk microjet and its impact is examined. The study demonstrates that the presence of initial velocity in water affects the amount of microjet impact proportional to the direction of gravity. Moreover, the relationship between the laser energy and the initial conditions of the bubble and the disk microjet impact on the cylinder wall is expressed.
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Affiliation(s)
- Amirhossein Hariri
- Department of Mechanical Engineering, University of Tabriz, Tabriz 5166616471, Iran
| | | | - Rezayat Parvizi
- Department of Cardiac Surgery, Shahid Madani Heart Hospital, Tabriz University of Medical Sciences, Tabriz 5163639889, Iran
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