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Wang H, Xu C, Wen A, Du Y, Yuan S, Yu H, Guo Y, Cheng Y, Qian H, Yao W. The adsorption-desorption behavior of chlorothalonil in the cuticles of apple and red jujube. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 935:173195. [PMID: 38750752 DOI: 10.1016/j.scitotenv.2024.173195] [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: 07/11/2023] [Revised: 04/12/2024] [Accepted: 05/11/2024] [Indexed: 05/27/2024]
Abstract
The distribution fate of chlorothalonil (CHT) in the environment (soil and water) and fruits is controlled by the capacity of cuticles to adsorb and desorb CHT, which directly affects the safety of both the environment and fruits. Batch experiments were conducted to reveal the adsorption-desorption behaviors of CHT in the cuticles of apple and red jujube. The adsorption kinetics showed that both physisorption and chemisorption occurred during the adsorption process. Furthermore, the isothermal adsorption of CHT in the fruit cuticles followed the Freundlich model. The thermodynamic parameters (ΔG ≤ -26.16 kJ/mol, ΔH ≥ 31.05 kJ/mol, ΔS ≥ 0.20 kJ/(mol K) showed that the whole CHT adsorption process was spontaneous, and the hydrophobic interaction was predominant. The CHT adsorption capacity of the apple cuticle was higher than that of the red jujube cuticle, potentially due to the significantly higher alkanes content of apples than that of red jujubes. An appropriate ionic strength (0.01 moL/L) could induce a higher adsorption capacity. In addition, the desorption kinetics were shown to conform to a Quasi-first-order model, meaning that not all the adsorbed CHT could be easily desorbed. The desorption ratios in apple and red jujube cuticles were 41.38% and 35.64%, respectively. The results of Fourier-transformed infrared spectroscopy and X-ray photoelectron spectroscopy further confirmed that CHT could be adsorbed and retained in the fruit cuticles. Investigating the adsorption-desorption behavior of CHT in the apple and red jujube cuticles allowed to determine the ratio of its final distribution in the fruits and environment, providing a theoretical basis to evaluate the risk of residue pesticide.
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Affiliation(s)
- Huihui Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Chang Xu
- China Academy of Launch Vehicle Technology, Beijing, China
| | - Aying Wen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yuhang Du
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Shaofeng Yuan
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Hang Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - He Qian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China.
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Lee JC, Kim DY, Lee EH, Lee SW. Empowering powdered activated carbon (PAC) with 3D printing: Achieving highly efficient and reusable cationic dye removal. CHEMOSPHERE 2024; 357:141982. [PMID: 38608778 DOI: 10.1016/j.chemosphere.2024.141982] [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: 01/18/2024] [Revised: 04/09/2024] [Accepted: 04/09/2024] [Indexed: 04/14/2024]
Abstract
Powdered activated carbon (PAC) has been extensively used as an effective adsorbent. Despite its excellent adsorption ability, PAC has drawbacks, including difficulty in filtration and reactivation after use, limitations of mass transfer in deeper areas because of its aggregated powder form, and limited applicability in high-flow systems. To overcome these limitations, we used a three-dimensional (3D) printing system to fabricate PAC into a 3D structure. Spectral and microscopic analyses indicated that PAC was embedded into 3D monolith and exhibited high porosity suitable for facile mass transfer. The designed 3D PAC filter effectively removed 200 ppm-methylene blue (MB) within 8 h and showed an adsorption efficiency of 93.4 ± 0.9%. The adsorption of MB onto the 3D PAC filter was described by the pseudo-first-order kinetic and Freundlich isotherm models. The negatively charged 3D PAC filter might attract the positively charged MB, thus favoring the physical adsorption of MB onto the 3D PAC filter. The adsorption performance of the 3D PAC filter was tested at various pH levels of 4-10 and against MB spiked in seawaters and freshwaters to evaluate its feasibility for use in real environments. Finally, the reproducibility and reusability of the 3D PAC filter were demonstrated through repeated adsorption and desorption processes against MB.
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Affiliation(s)
- Ji-Cheol Lee
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Republic of Korea
| | - Da-Yeon Kim
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Republic of Korea
| | - Eun-Hee Lee
- Department of Microbiology, Pusan National University, 2 Busandaehak-ro 63 Beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea; Institute for Future Earth, Pusan National University, 2 Busandaehak-ro 63 Beon-gil, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Seung-Woo Lee
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Republic of Korea; Center for Functional Biomaterials, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Republic of Korea.
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Mahmoud M, Kraxner J, Mehta A, Elsayed H, Galusek D, Bernardo E. Upcycling waste derived glass into high-performance photocatalytic scaffolds by alkali activation and direct ink writing. Heliyon 2024; 10:e24737. [PMID: 38298710 PMCID: PMC10828805 DOI: 10.1016/j.heliyon.2024.e24737] [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: 08/30/2023] [Revised: 01/05/2024] [Accepted: 01/12/2024] [Indexed: 02/02/2024] Open
Abstract
Novel and eco-friendly solutions are extensively needed for wastewater treatment. This work capitalizes on the combination of waste vitrification and additive manufacturing to produce an efficient photocatalyst for the specific purpose. Fine powders of waste-derived glass, containing Fe3O4 inclusions, by simple suspension (for a solid loading of 65 wt %) in alkaline solution (5 M NaOH), were transformed into pastes for direct ink writing. 3D-printed reticulated scaffolds were stabilized by the progressive hardening of a zeolite-like gel, formed by glass/solution interaction, at nearly room temperature. The printed scaffolds were successfully tested for the removal of methylene blue, realized by combining the high sorption capacity of the gel with the catalytic activity of magnetite inclusions, under UV light. A complete degradation of methylene blue is achieved by 90 min exposure, comparing favorably with other reported photocatalytic materials, requiring from 60 to 360 min. The photocatalytic activity was tested for several cycles, with no significant degradation. In other words, a waste-derived material can be reused for multiple times, to remediate wastewaters, with evident benefits on waste minimization.
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Affiliation(s)
- Mokhtar Mahmoud
- FunGlass, Alexander Dubček University of Trenčín, Trenčín, Slovakia
- Department of Industrial Engineering, University of Padova, Padova, Italy
- Department of Glass Research, National Research Centre, Egypt
| | - Jozef Kraxner
- FunGlass, Alexander Dubček University of Trenčín, Trenčín, Slovakia
| | - Akansha Mehta
- FunGlass, Alexander Dubček University of Trenčín, Trenčín, Slovakia
| | - Hamada Elsayed
- Department of Industrial Engineering, University of Padova, Padova, Italy
| | - Dušan Galusek
- FunGlass, Alexander Dubček University of Trenčín, Trenčín, Slovakia
- Joint Glass Centre of the IIC SAS, TnUAD and FChFT STU, Trenčín, Slovakia
| | - Enrico Bernardo
- Department of Industrial Engineering, University of Padova, Padova, Italy
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Gao Y, Shi H, Zhang X, Ma J, Yu T. Differences in Performance and Conductivity Persistence of New Reduced Graphene Oxide Air Filter Materials before and after Eliminating Static Electricity. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7146. [PMID: 38005077 PMCID: PMC10672433 DOI: 10.3390/ma16227146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/04/2023] [Accepted: 11/11/2023] [Indexed: 11/26/2023]
Abstract
Improving the filtration efficiency of air filter materials is an ongoing research goal. This study conducted in-depth research on a new reduced graphene oxide air filter material, and the differences in its performance and conductivity durability before and after eliminating static electricity were tested and analyzed. The results showed that the filtration efficiency of the reduced graphene oxide air filter material significantly decreased after eliminating static electricity. The maximum decrease in filtration efficiency was observed at a filtration velocity of 0.8 m/s, with PM10 > PM1.0 > PM2.5. In this case, the filtration efficiency decreased by 11.8%, 7.98%, and 7.17%, respectively. The maximum difference in filtration efficiency of 0.29 μm particulates was about 12.7%. Eliminating static electricity slightly increased the resistance (2.5~15.5 Pa). In addition, the new reduced graphene oxide air filter material exhibited good conductivity and stability after continuous testing. This study provides data support for the application of subsequent electrification sterilization, reference values for multi-angle applications, and the development of new composite air filter materials.
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Affiliation(s)
- Yun Gao
- School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; (Y.G.); (J.M.)
| | - Huixin Shi
- CSCEC Northwest Design and Research Institute Co., Ltd., Xi’an 710018, China;
| | - Xin Zhang
- School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; (Y.G.); (J.M.)
| | - Jingyao Ma
- School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; (Y.G.); (J.M.)
| | - Tao Yu
- Wuhan Second Ship Design and Research Institute, Wuhan 430205, China
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Zeng Y, Liu Q, Zhang X, Wang Z, Yu T, Ren F, He P. Comparative Filtration Performance of Composite Air Filter Materials Synthesized Using Different Impregnated Porous Media. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4851. [PMID: 37445165 DOI: 10.3390/ma16134851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/26/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023]
Abstract
Indoor environment quality is currently a hot research topic. In this study, composite air filter materials were synthesized using different impregnated porous medium materials, and their filtration performance and structural parameters were analyzed. The results showed that composite filter materials' structures changed at the fibers' surfaces when synthesized using different porous medium material layers. The filtration efficiency of composite filter materials synthesized using different porous media reached a maximum 0.8 m/s filtration velocity, and PM10, PM2.5, and PM1.0 increased by 1.67~26.07, 1.19~26.96, and 1.10~21.98%, respectively. The filtration efficiencies of reduced graphene oxide composite for PM10, PM2.5, and PM1.0 were 21.26, 20.22, and 18.50% higher, respectively, than those of carbon black composite. In addition, the filtration efficiency of the composite material synthesized by reducing graphene oxide improved for 0 to 1.0 μm particulates and was more effective by comparison. Filtration efficiency and resistance were comprehensively considered during air filter use to provide useful values for the selection and preparation of composite filter materials in the future.
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Affiliation(s)
- Yuxia Zeng
- School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Qing Liu
- School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Xin Zhang
- School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhao Wang
- School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Tao Yu
- Wuhan Second Ship Design and Research Institute, Wuhan 430205, China
| | - Fei Ren
- XAUAT Engineering Technology Co., Ltd., Xi'an 710055, China
| | - Puchun He
- Yan'an Branch of Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Yan'an 716000, China
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Yang M, Yang B, Zhang X, Wu S, Yu T, Song H, Ren F, He P, Zhu Y. Experimental Study of the Factors Influencing the Regeneration Performance of Reduced Graphite Oxide Filter Materials under Water Cleaning. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16114033. [PMID: 37297167 DOI: 10.3390/ma16114033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023]
Abstract
With the normalization of epidemic prevention and control, air filters are being used and replaced more frequently. How to efficiently utilize air filter materials and determining whether they have regenerative properties have become current research hotspots. This paper discusses the regeneration performance of reduced graphite oxide filter materials, which were studied in depth using water cleaning and the relevant parameters, including the cleaning times. The results showed that water cleaning was most effective using a 20 L/(s·m2) water flow velocity with a 17 s cleaning time. The filtration efficiency decreased as the number of cleanings increased. Compared to the blank group, the filter material's PM10 filtration efficiency decreased by 0.8%, 19.4%, 26.5%, and 32.4% after the first to fourth cleanings, respectively. The filter material's PM2.5 filtration efficiency increased by 12.5% after the first cleaning, and decreased by 12.9%, 17.6%, and 30.2% after the second to fourth cleanings, respectively. The filter material's PM1.0 filtration efficiency increased by 22.7% after the first cleaning, and decreased by 8.1%, 13.8%, and 24.5% after the second to fourth cleanings, respectively. Water cleaning mainly affected the filtration efficiency of particulates sized 0.3-2.5 μm. Reduced graphite oxide air filter materials could be water washed twice and maintain cleanliness equal to 90% of the original filter material. Water washing more than twice could not achieve the standard cleanliness equal to 85% of the original filter material. These data provide useful reference values for the evaluation of the filter materials' regeneration performance.
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Affiliation(s)
- Min Yang
- School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Bing Yang
- School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Xin Zhang
- School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Saisai Wu
- School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Tao Yu
- Wuhan Second Ship Design and Research Institute, Wuhan 430205, China
| | - Hong Song
- School of Management, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Fei Ren
- XAUAT Engineering Technology Co., Ltd., Xi'an 710055, China
| | - Puchun He
- Yan'an Branch of Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Yan'an 716000, China
| | - Yanhui Zhu
- Hunan Geological Exploration Institute of China Metallurgical Geology Bureau, Changsha 410001, China
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