Journal of Water Process Engineering
·
2024
·
IF 6.3
Zhaohui Zhang,Wenshuo Hu,Cong Ma,Tong Zhang,Liang Wang
Understanding the irreversible fouling mitigation performance of conductive membranes is crucial for engineering applications. In this study, the effectiveness of conductive membranes in mitigating the irreversible fouling caused by typical membrane pollutants and actual surface water was investigated. The results indicated that the conductive membranes had the greatest mitigating effect on irreversible fouling caused by humic substances and the weakest mitigating effect on that caused by proteins. The growth rates of irreversible membrane fouling over five-cycle filtration with conductive membranes were reduced by 58.6 % (humic acid), 42.3 % (sodium alginate), and 30 % (bovine serum albumin) compared to those without power. Moreover, conductive membranes exhibited a commendable irreversible fouling mitigation effect when treating real surface water. The irreversible fouling growth rate and resistance decreased by 41.6 % and 49.9 %, respectively, compared to those without power. Although the increase in the ionic strength of the feed water weakened the effectiveness of the conductive membranes in irreversible fouling mitigation, it was still significantly better than that without power.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2021
·
IF 4.952
Bing Cui,Wenxin Chen,Hongshan Liang,Jing Li,Di Wu,Shuxin Ye,Bin Li
The thermal stability of the κ-carrageenan/konjac gum (KC/KGM) mixed gel during heating treatment (at 85 °C for 30 min) does not satisfy the demand of the practical application. To solve this problem, gellan gum (GG) or/and Ca 2+ were introduced in the κ-carrageenan/konjac gum (KC/KGM) mixed system to enhance mechanical and thermal properties. The effect of GG and Ca 2+ on the gel matrix properties was studied by two deformation test (TDT), rheological measurement, scanning electron microscopy (SEM), combined with visual observation. The results showed that neither GG nor Ca 2+ alone could reduce the deterioration of the mechanical properties of the KC/KGM gel after heat treatment (at 85 °C for 30 min). Only the participation of GG and Ca 2+ could ensure the consistent mechanical properties of the mixed gel before and after heating. The rheological and micro-rheological analysis confirmed that the KC/KGM gel with GG and Ca 2+ could always remain solid-state without gel-sol transition under heat treatment. In addition, the thermo-irreversible gels with different texture properties were prepared by adjusting the mass ratio of KC and KGM. Hence, this study may enrich the design of novel gel-based food ingredients.
研究领域:
食品科学
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生物材料
✓ 已验证
DOI
高影响因子
CHEMOSPHERE
·
2024
·
IF 8.1
Qiong Yang,Jianjian Wei,Yili Chen,Zhourui Xu,Dehua Ma,Min Zheng,Jiansheng Li
The application of nano-catalysts in improving the ozonation removal efficiency for refractory organic compounds has been extensively investigated. However, cost-effective nano-catalysts separation remains a challenge. In this study, membrane separation processes were employed to separate nano-MgO catalysts from an ozonation system. A continuous nano-catalytic ozonation membrane separation (nCOMS) coupling system was successfully constructed for treating quinoline. The results showed that long hydraulic retention time (HRT) and high nano-MgO dosage could improve the quinolone removal efficiency but shorten operation cycles. At the optimal operation conditions of HRT = 4 h and nano-MgO dosage = 0.2 g/L, the nCOMS system achieved a stable quinoline removal efficiency of 85.2% for 240 min running with a transmembrane pressure lower than 10 kPa. The quinoline removal efficiency contribution for ozonation, catalysis and membrane separation was 57.1%, 24.9% and 18.0%, respectively. Compared to ozonation membrane separation system, the fouling rate index of the nCOMS system increased by 60% under optimal conditions, but the irreversible fouling was reduced to 28%. In addition, the nCOMS system exhibited reduced adverse effects of coexisting natural organic matter (NOM) on quinoline removal and membrane fouling . In conclusion, the nCOMS system demonstrated higher quinoline removal efficiency, lower irreversible fouling, and reduced adverse effect of coexisting NOM, thereby signifying its potential for practical applications in advanced treatment of industrial wastewater.
研究领域:
环境工程
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2023
·
IF 13.6
Haoliang Xiao,Zhuqi Chen,Jiaqi Ding,Ning Zhang,Zhimin Ye,Zhonghua Xiao,Songlin Wang,Pengchao Xie,Yongsheng Chen
In chemical membrane cleaning, the challenge is to efficiently remove irreversible fouling while minimizing the impact on membrane materials. Particularly, traditional hypochlorite cleaning will further lead to the generation of toxic halogenated by-products. To address these issues, a combined system composed of peroxymonosulfate and chloride (PMS/Cl − ) was applied to clean irreversible-humic-acid-fouled polyethersulfone (PES) membranes. After fouled membranes were soaked for 1 h in a PMS/Cl − solution (10 mM/15 mM) at 25 °C under neutral conditions, 94% flux recovery and 96% resistance removal were realized. Surface properties of virgin and cleaned membranes were very similar, confirming the effectiveness of the PMS/Cl − solution in removing irreversible foulants. The stability of membrane separation performance during multiple fouling and cleaning cycles further confirmed the minimal impact on membrane materials. Rapid diminution of the peaks centered in the region of fulvic-like and humic-like components, monitored under 3D-fluorescence for the cleaning solution, was attributed to PMS-catalyzed chlorination, thereby revealing the primary foulant detachment mechanism. Crucially, the approach exhibited lower toxicity than hypochlorite, as evidenced by reduced halogenated by-products and lower acute toxicity to Photobacterium phosphoreum T3. Overall, this novel cleaning system is promising for the efficient and environmentally friendly removal of irreversible organic foulants in practical water-treatment.
研究领域:
环境科学
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化学工程
·
水处理技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2023
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IF 9.5
Kai Sun,Xueyan Li,Zhuojun Zhang,Xu Xiao,Lili Gong,Peng Tan
Safety hazards arising from lithium (Li) plating during the operation of lithium-ion batteries (LIBs) are a constant concern. Herein, this work explores the coaction of low temperatures and current rates (C rates) on Li plating in LIBs by electrochemical tests, material characterization, and numerical analysis. With a decrease in temperature and an increase in C rate, the battery charging process shifts from normal intercalation to Li plating and even ultimately fails at −20 °C and 0.5C. The morphology observations reveal the detailed growth process of individual plated Li through sand-like Li, whisker Li, dendritic Li, mossy Li, and finally bulk Li, as well as aggregated Li from sparse to dense. Through quantitative analysis, the dynamic pattern under long-term cycles is revealed. The low temperature and high C rate will lead to an increase in Li plating capacity and irreversibility, which are further deteriorated with the cycles. In addition, a critical condition of high Li plating and high reversibility at −10 °C and 0.2C is found, and further studies are needed to reveal the competition between kinetics and thermodynamics in the Li plating process. This work provides detailed information on the range and growth process of Li plating and quantifies Li plating, which can be used for practical Li plating prediction and regulation.
研究领域:
电化学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Asia-Pacific Journal of Chemical Engineering
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2016
·Vol. 11
·期 5
·673-682
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IF 0.728
Rui Li,Zhaoliang Wu,Yanji Wang,Linlin Ding,Wei Liu
Prevention of irreversible aggregation of whey soy proteins (WSP) in their foam fractionation from soy whey wastewater is important for achieving their large-scale recovery. For effectively preventing the irreversible aggregation of WSP, this work studied its dependencies on the WSP enrichment ratio and the height of the collected foam which freely collapsed. The results show that most insoluble aggregates formed in the desorption of WSP from the gas–liquid interface, and their formation was closely related to their high local enrichment in the foam. Based on the above results, a chemical defoaming agent with 25% Tween 20 was developed to reduce the relative content of insoluble aggregates in the foamate and the decrease reached about 80%, compared to the case without Tween 20. The prevented irreversible aggregation effectively improved food-related properties of the WSP product. Copyright © 2016 Curtin University of Technology and John Wiley & Sons, Ltd.
研究领域:
食品科学
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蛋白质工程
✓ 已验证
DOI
高影响因子
ChemSusChem
·
2023
·Vol. 16
·期 15
·e202300244
·
IF 8.4
Shuai Tong,Hui Pan,Hang Liu,Xiaoyu Zhang,Xiangyu Liu,Min Jia,Yahao Kang,Yong Yuan,Xinyi Du,Xiaohong Yan
Graphical The improvement of the energy density of Na 3 V 2 (PO 4 ) 2 F 3 (NVPF) is now related to the utilization of the third Na + , which was reported to be electrochemically inaccessible. Our research revealed that Ti-doped Na 3 V 2 (PO 4 ) 2 F 3 (NVTPF) could be overcharged at approximately 4.9 V without forming the irreversible metastable phase, which means the electrochemical inactive Na + could be effectively attracted without affecting the subsequent electrochemical behavior. Polyanionic material, specifically the NASICON-type material, is considered a promising cathode material for Na-ion batteries (SIBs) because of its stable structure and high operating voltage. Further, it improves the energy density correlated with the well utilization of all Na in the compound. For Na 3 V 2 (PO 4 ) 2 F 3 (NVPF), the extraction of the third Na, reported as the electrochemical inactivated, can be realized at a high voltage region while forming an irreversible tetragonal phase. In this study, we introduce Ti doping to the Na 2 VTi(PO 4 ) 2 F 3 (NVTPF) material; we reveal that the Ti-doped NVTPF could effectively suppress the irreversible phase transformation, thus successfully harnessing Na in a wide voltage range. Experimental study discloses that the Ti-substituted Na 2 VTi(PO 4 ) 2 F 3 could take up the Na + from Amam phase to Cmc21 phase between 1.0 V and 4.8 V reversibly accounting for the 2 Na + transportation that shows favorable Na + kinetics and structural stability. Our research provides the strategy to stabilize the polyanion structure upon charging at a high voltage range and inspires the utilization of full sodium in the polyanionic materials, which could be considered as a material design for future conventional applications.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2025
·
IF 9
Yuan Li,Danchen Zhu,Linmeng Hong,Jixiang Dai,Lijun Wu
This study systematically investigated the effect of interfering with autoinducer-2 (AI-2) signaling system on controlling initial fouling attachment and irreversible components. Exposure of bacteria to the inhibitor significantly reduced the expression of the luxS gene, which resulted in a 37.3% reduction of AI-2 signaling molecule synthesis. Expression of flagellin and kinesin, which determine bacteria adhesion properties, and virulence genes was significantly down-regulated. AI-2 quorum quenching (QQ) significantly suppressed the initial biofilm growth and inhibition efficiency was positively correlated with bacteria concentration. Extracellular polymeric substances accumulation decreased by 40.8% in QQ experiment relative to the control, thus mitigating the flux decline. Polysaccharides, which constitute irreversible components, were significantly reduced by 69.3% with presence of inhibitor. AI-2 QQ altered protein and peptide structure of fouling layer, which converted irreversible fouling into reversible fouling. These findings contributed to the understanding of QQ susceptibility to initial fouling, providing a theoretical basis for engineering applications.
研究领域:
微生物学
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环境工程
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分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2024
·
IF 13
Jieqiu Wang,Tian Yin,Jianping Ge
Thermochromic photonic crystal (PC) is a promising material for anti-counterfeiting applications, but there are still challenges to further improve the anti-counterfeiting performance and the practicability in usage. Here, a disposable thermally triggered PC anti-counterfeiting tag with irreversible response and multi-step color changes is developed based on the thermochromic Silica/(Polyethylene glycol-Ethoxylated trimethylolpropane triacrylate) (SiO 2 /(PEG-ETPTA)) double-layer film. The fast and irreversible thermal response come from the quick melting and infiltration of PEG-ETPTA into the PCs upon heating. The multi-step color change at different temperatures originated from the regioselective control of the UV curing degree of the PEG-ETPTA layer and the resulting thermochromic temperature of the double-layer film. Therefore, the invisible PC pattern on the tag can be revealed part by part upon heating and became invisible again after overheating, which offered diversified visual effects and enhanced anti-counterfeiting performances.
研究领域:
材料科学
·
光学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Ning Li,Yu Tian,Jianhui Zhao,Lingchao Kong,Jun Zhang,Wei Zuo,Hao Cui,Qingyuan Lin
In this work, the atomic layer deposition-zinc oxide (ALD-ZnO) modified membrane was fabricated and the effects of ionic strength, co-existing Ca 2+ and Mg 2+ on its fouling potential were systematically investigated. Results showed excellent anti-irreversible fouling performance of PVDF-ZnO modified membrane with co-existing cations. Attractively, the values of declined membrane flux dropped by 25.7%, 25.9% and 22.3% after ZnO modification in the presence of 50 mM NaCl, 1.0 mM Ca 2+ and 1.0 mM Mg 2+ , respectively. Besides, Ca 2+ was prone to cause membrane fouling than Mg 2+ . Furthermore, fitting of multistage filtration models revealed that membrane fouling was ascribed to dynamic adsorption initially, followed by surface and pores deposition when filtrating BSA with or without Mg 2+ . However, the modified membrane experienced reverse process with higher ionic strength or Ca 2+ addition due to BSA molecular cluster. Moreover, the reduced repulsive energy induced by charge screening and calcium bridging resulted in slight aggravation of membrane fouling. Interestingly, the flux of PVDF-ZnO fouled membrane was easily recovered after physical cleaning. These findings provided deep insight into practical application of ALD modified membrane in wastewater remediation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Materials Chemistry Frontiers
·
2025
·
IF 6.4
Lei Xu,Wenjing Lou,Fan Xu,Yujiao Xie,Yue Hu,Liting Xie,Chengyue Zhang,Aochi Liu,Xinyu Miao,Zhiwei Hou,Wenyuan Ma,Qiyu Zhao,Jie Lin,Aiguo Wu,Tianan Jiang
Irreversible electroporation (IRE) has emerged as a promising therapeutic modality for pancreatic cancer. However, traditional IRE techniques rely on high-voltage electric fields and require precise alignment of multiple electrodes, which complicates the procedure and increases associated risks. To address these challenges, we developed a novel “bipolar” IRE electrode that combines both the cathode and anode into a single device, simplifying the procedure and potentially reducing operational risks. Additionally, we incorporated a conductive metal–organic framework (MOF) to enhance the electric field distribution of the electric field, thereby improving the efficacy of tumor ablation. Mechanistic studies revealed that this combined approach induces tumor cell apoptosis and improves the consistency of ablation outcomes. Both in vitro and in vivo experiments demonstrated that the bipolar electrode, in combination with the conductive MOF, achieved a significant apoptosis rate of 59.95% ± 2.41 in vitro and resulted in an 85.77% ± 0.21 reduction in tumor volume in in vivo models, without any adverse effects. This approach provides a more optimized and potentially more effective solution for treating pancreatic cancer.
研究领域:
肿瘤学
·
生物医学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2017
·
IF 6.216
Haitao Wang,Wei Wang,Liang Wang,Bin Zhao,Zhaohui Zhang,Xiaoming Xia,Huifang Yang,Yu Xue,Na Chang
A novel graphene oxide (GO) immobilized quaternized polysulfone (PSF) hybrid membrane (Q-PSF/GO) was prepared via phase inversion method using GO as an additive, and triethanolamine (TEOA) as an aminated agent. TEOA, which reacted with both PSF and GO, could improve the dispersibility and compatibility of GO in membrane casting solution. The membrane exhibited highest permeability and rejection rate to bovine serum albumin (BSA) compared to bare PSF membrane and PSF/GO membrane. Expressly, when the same amount of GO was incorporated into the PSF/GO membrane and the Q-PSF/GO membrane, the Q-PSF/GO membrane showed a more satisfactory performance. The water contact angle measurement confirmed the increased hydrophilicity of the Q-PSF/GO hybrid membrane. FE-SEM images proved that the Q-PSF/GO 0.5 membrane possessed larger and more vertical finger-like pore structure in comparison with bare PSF membrane and PSF/GO membrane. Furthermore, it was proved by CLSM images that a thick and incompact layer of BSA was absorbed onto the surface of the Q-PSF/GO 0.5 membrane. However, the absorbed layer of BSA on Q-PSF/GO 0.5 membrane surface could be easily washed away compared to the bare PSF membrane.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）