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Liu G, Li C, Li D, Xue W, Hua T, Li F. Application of catalytic technology based on the piezoelectric effect in wastewater purification. J Colloid Interface Sci 2024; 673:113-133. [PMID: 38875783 DOI: 10.1016/j.jcis.2024.06.088] [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: 03/20/2024] [Revised: 05/24/2024] [Accepted: 06/09/2024] [Indexed: 06/16/2024]
Abstract
The demands of human life and industrial activities result in a significant influx of toxic contaminants into aquatic ecosystems. In particular, organic pollutants such as antibiotics and dye molecules, bacteria, and heavy metal ions are represented, posing a severe risk to the health and continued existence of living organisms. The method of removing pollutants from water bodies by utilizing the principle of the piezoelectric effect in combination with chemical catalytic processes is superior to other wastewater purification technologies because it can collect water energy, mechanical energy, etc. to achieve cleanliness and high removal efficiency. Herein, we briefly introduced the piezoelectric mechanisms and then reviewed the latest advances in the design and synthesis of piezoelectric materials, followed by a summary of applications based on the principle of piezoelectric effect to degrade pollutants in water for wastewater purification. Moreover, water purification technologies incorporating the piezoelectric effect, including piezoelectric effect-assisted membrane filtration, activation of persulfate, and battery electrocatalysis are elaborated. Finally, future challenges and research directions for the piezoelectric effect are proposed.
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Affiliation(s)
- Gaolei Liu
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin, 300350, China Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, China Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China
| | - Chengzhi Li
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin, 300350, China Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, China Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China
| | - Donghao Li
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin, 300350, China Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, China Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China
| | - Wendan Xue
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin, 300350, China Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, China Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China
| | - Tao Hua
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin, 300350, China Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, China Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China.
| | - Fengxiang Li
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin, 300350, China Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, China Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China.
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Li N, Long QH, Li XY, Dong C, Zhao TS, Mai X, Zhao YS, Gao ZF, Wei Q, Xia F. Concurrent manipulation of competitive mechanisms to construct glutathione-stabilized gold nanocluster-based dual-channel molecular classifier for metal ions detection and information steganography. Talanta 2024; 278:126526. [PMID: 38996564 DOI: 10.1016/j.talanta.2024.126526] [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: 01/18/2024] [Revised: 05/31/2024] [Accepted: 07/07/2024] [Indexed: 07/14/2024]
Abstract
Understanding charge transport in metal ion-mediated glutathione-stabilized gold nanoclusters (GSH-Au NCs) has proved difficult due to the presence of various competitive mechanisms, such as electron transfer (ET) and aggregation induction effect (AIE). In this paper, we present a dual-channel fluorescence (FL) and second-order Rayleigh scattering (SRS) sensing method for high-throughput classification of metal ions, relying on the competition between ET and AIE using GSH-Au NCs. The SRS signals show significant enhancement when Pb2+, Ag+, Al3+, Cu2+, Fe3+, and Hg2+ are present, as a result of the aggregation of GSH-Au NCs. Notably, the fluorescence signal exhibits the opposite trend. The FL intensities of GSH-Au NCs are enhanced by Pb2+, Ag+, and Al3+ through the AIE mechanism, while they are quenched by Cu2+, Fe3+, and Hg2+, which is dominated by the ET mechanism. By employing principal component analysis and hierarchical cluster analysis, these signals are transformed into unique fingerprints and Euclidean distances, respectively, enabling successful distinction of six metal ions and their mixtures with a low detection limit of 30 nM. This new strategy has successfully addressed interference from impurities in the testing of real water samples, demonstrating its strong ability to detect multiple metal ions. Impressively, we have achieved molecular cryptosteganography, which involves encoding, storing, and concealing information by transforming the selective response of GSH-Au NCs to binary strings. This research is anticipated to advance utilization of nanomaterials in logic sensing and information safety, bridging the gap between molecular sensors and information systems.
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Affiliation(s)
- Na Li
- School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Qing-Hong Long
- School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Xin-Yuan Li
- School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Can Dong
- School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Tian-Sheng Zhao
- School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Xi Mai
- School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Yong-Sen Zhao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Zhong-Feng Gao
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
| | - Qin Wei
- Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, PR China
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Wu D, Jing L, Li Y, Ran T, Peng S, Jing W. Enhancing Fatigue Performance of Coal Gangue Concrete (CGC) through Polypropylene Fiber Modification: Experimental Evaluation. Polymers (Basel) 2024; 16:1096. [PMID: 38675015 PMCID: PMC11054171 DOI: 10.3390/polym16081096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Coal gangue is a byproduct of coal mining and processing, and according to incomplete statistics, China has amassed a substantial coal gangue stockpile exceeding 2600 large mountains, which poses a serious threat to the ecological environment. Utilizing gangue as a coarse aggregate to produce gangue concrete (GC) presents a promising avenue for addressing the disposal of coal gangue; however, gangue concrete presents several challenges that need to be tackled, such as low strength and poor resistance to repeated loads. In this study, polypropylene fibers (PPFs) were incorporated into gangue concrete to enhance its utilization rate. Uniaxial compressive and repeated loading experiments were then conducted to investigate the uniaxial strength and fatigue properties of polypropylene fiber-reinforced gangue concrete (PGC) with varying gangue substitution rates (20%, 40%, and 60%) and different polypropylene fiber admixtures (0, 0.1%, 0.2%, and 0.3%). The findings indicate that incorporating gangue at a substitution rate of 40% could notably enhance the uniaxial compressive strength of PGC, resulting in a maximum increase of 19.4%. In the repeated loading experiments, the ductility of PGC was enhanced with the incorporation of PPFs, resulting in a reduction of 33.76% in the damage factor and 19.42% in residual strain for PGC-40-0.2 compared to PGC-40-0. A PPF content of 0.2% was found to be optimal for enhancing the fatigue performance of PGC. Scanning electron microscope (SEM) testing proved the improvement effect of polypropylene fiber on gangue concrete from a microscopic perspective. This study provides crucial experimental data and a theoretical foundation for the utilization of gangue concrete in complex stress environments.
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Affiliation(s)
- Di Wu
- School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232000, China
- School of Computing, Macquarie University, Sydney 2109, Australia
| | - Laiwang Jing
- School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232000, China
| | - Yan Li
- School of Computing, Macquarie University, Sydney 2109, Australia
| | - Tao Ran
- School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232000, China
- School of Computing, Macquarie University, Sydney 2109, Australia
| | - Shaochi Peng
- School of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610000, China
| | - Wei Jing
- School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232000, China
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Wang YW, Bai DS, Luo XG, Zhang Y. Effects of Setaria viridis on heavy metal enrichment tolerance and bacterial community establishment in high-sulfur coal gangue. CHEMOSPHERE 2024; 351:141265. [PMID: 38246497 DOI: 10.1016/j.chemosphere.2024.141265] [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: 11/23/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/23/2024]
Abstract
Plant enrichment and tolerance to heavy metals are crucial for the phytoremediation of coal gangue mountain. However, understanding of how plants mobilize and tolerate heavy metals in coal gangue is limited. This study conducted potted experiments using Setaria viridis as a pioneer remediation plant to evaluate its tolerance to coal gangue, its mobilization and enrichment of metals, and its impact on the soil environment. Results showed that the addition of 40% gangue enhanced plant metal and oxidative stress resistance, thereby promoting plant growth. However, over 80% of the gangue inhibited the chlorophyll content, photoelectron conduction rate, and biomass of S. viridis, leading to cellular peroxidative stress. An analysis of metal resistance showed that endogenous S in coal gangue promoted the accumulation of glutathione, plant metal chelators, and non-protein thiols, thereby enhancing its resistance to metal stress. Setaria viridis cultivation affected soil properties by decreasing nitrogen, phosphorus, conductivity, and urease and increasing sucrase and acid phosphatase in the rhizosphere soil. In addition, S. viridis planting increased V, Cr, Ni, As, and Zn in the exchangeable and carbonate-bound states within the gangue, effectively enriching Cd, Cr, Fe, S, U, Cu, and V. The increased mobility of Cd and Pb was correlated with a higher abundance of Proteobacteria and Acidobacteria. Heavy metals, such as As, Fe, V, Mn, Ni, and Cu, along with environmental factors, including total nitrogen, total phosphorus, urease, and acid phosphatase, were the primary regulatory factors for Sphingomonas, Gemmatimonas, and Bryobacter. In summary, S. viridis adapted to gangue stress by modulating antioxidant and elemental enrichment systems and regulating the release and uptake of heavy metals through enhanced bacterial abundance and the recruitment of gangue-tolerant bacteria. These findings highlight the potential of S. viridis for plant enrichment in coal gangue areas and will aid the restoration and remediation of these environments.
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Affiliation(s)
- Yi-Wang Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | | | - Xue-Gang Luo
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Yu Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China.
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