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Tailoring Mesoporous Y-Zeolite Molecular Sieve for Effective Removal of Micropollutants from Water
IF 4.8
ACS ES&T water Pub Date : 2025-02-20 DOI: 10.1021/acsestwater.4c0111910.1021/acsestwater.4c01119
Wenxi Cen, Bangguo Wang, Yuwei Huang, Shengying Ye, Jian Ma, Rui Xu, Liwei Cui, Yinghui Han, Yuanxun Zhang, Tao Lyu* and Lijing Wang*, 
{"title":"Tailoring Mesoporous Y-Zeolite Molecular Sieve for Effective Removal of Micropollutants from Water","authors":"Wenxi Cen,&nbsp;Bangguo Wang,&nbsp;Yuwei Huang,&nbsp;Shengying Ye,&nbsp;Jian Ma,&nbsp;Rui Xu,&nbsp;Liwei Cui,&nbsp;Yinghui Han,&nbsp;Yuanxun Zhang,&nbsp;Tao Lyu* and Lijing Wang*,&nbsp;","doi":"10.1021/acsestwater.4c0111910.1021/acsestwater.4c01119","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01119https://doi.org/10.1021/acsestwater.4c01119","url":null,"abstract":"<p >Overuse and misuse of antibiotics have led to persistent antibiotic residues in water, challenging conventional remediation approaches. This study developed a tailored molecular sieve material, i.e., mesoporous Y-zeolite (M-Y zeolite), through hydrothermal synthesis for tetracycline (TC) removal from simulated and real water matrices. The average pore size of M-Y zeolite was 3.16 nm, more than 1.7 times the second-widest dimension of the targeted TC molecule (0.81 nm), allowing for effective adsorption. With a specific surface area of 516 m<sup>2</sup> g<sup>–1</sup>, M-Y zeolite achieved a maximum adsorption capacity of 88 mg g<sup>–1</sup>. The pseudo-second-order and Freundlich models indicated that adsorption occurred on a multilayer heterogeneous surface through chemisorption. The intraparticle diffusion model indicated that the adsorption process was governed by both liquid film diffusion and intraparticle diffusion. Mechanistic studies identified pore filling, complexation, and electrostatic interactions as the main adsorption mechanisms. After four regeneration cycles, the M-Y zeolite retained 66% of its initial adsorption capacity. In real water tests, removal efficiency slightly declined (4–14%) at 10 mg L<sup>–1</sup> TC due to competing ions and organic matter but remained &gt;99% at 0.1 and 1 mg L<sup>–1</sup> TC. These findings offer a promising mesoporous material for antibiotic removal, marking a significant advancement in water treatment.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1373–1383 1373–1383"},"PeriodicalIF":4.8,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficient Mercury Removal from Wastewater via Carbonized Inverse Vulcanized Copolymers
IF 4.8
ACS ES&T water Pub Date : 2025-02-19 DOI: 10.1021/acsestwater.5c0003010.1021/acsestwater.5c00030
Rashid Shamsuddin, Ali Shaan Manzoor Ghumman*, Richard Steven, Abdul Sami, Sharjeel Waqas and Zainab Noor Ahmad, 
{"title":"Efficient Mercury Removal from Wastewater via Carbonized Inverse Vulcanized Copolymers","authors":"Rashid Shamsuddin,&nbsp;Ali Shaan Manzoor Ghumman*,&nbsp;Richard Steven,&nbsp;Abdul Sami,&nbsp;Sharjeel Waqas and Zainab Noor Ahmad,&nbsp;","doi":"10.1021/acsestwater.5c0003010.1021/acsestwater.5c00030","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00030https://doi.org/10.1021/acsestwater.5c00030","url":null,"abstract":"<p >Inverse vulcanized polysulfides represent innovative sulfur-rich copolymers with unique properties that make them highly suitable for a variety of applications, including the effective remediation of Hg<sup>2+</sup> contaminants. However, their inherent hydrophobicity and low surface area limit the Hg<sup>2+</sup> uptake. This study introduces novel hydrophilic porous adsorbents, developed by carbonizing (with or without potassium hydroxide (KOH)) inverse vulcanized copolymers to enhance mercury removal efficiency from wastewater. Two copolymers were synthesized: one from sulfur (S) and methacrylic acid (MA) (Copoly(SMA)), and the other from S and vinyl benzyl chloride (VBC), later functionalized with <i>N</i>-methyl-<span>d</span>-glucamine (NMDG). Methacrylic acid and NMDG functionalization were introduced to enhance copolymer hydrophilicity with −OH groups. Carbonization in the presence of KOH significantly boosted surface area and pore formation, yielding a maximum surface area of 175.5 m<sup>2</sup>/g of the NMDG-functionalized carbonized copolymer (Copoly(SVBC)@NMDG_KOH_C)─68, 3.5, and 1.32 times greater than the uncarbonized, carbonized Copoly(SMA)_C, and KOH-aided carbonized Copoly(SMA)_KOH_C copolymers, respectively. Adsorption tests revealed a maximum mercury adsorption capacity of 572.4 mg/g (Langmuir) for Copoly(SVBC)@NMDG_KOH_C, underscoring its potential as a mercury adsorbent. Isotherm and kinetic analyses reveal that mercury uptake follows the Langmuir model, demonstrating monolayer adsorption, and fits well with pseudo-second-order kinetics, indicating chemisorption as the primary mechanism. Furthermore, economic analysis showed that mercury removal with this adsorbent is cost-effective at just $9.95 per gram of Hg removed from wastewater.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1499–1509 1499–1509"},"PeriodicalIF":4.8,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing Hydraulic Efficiency in Denil Fishway: Impact of Baffle Configurations on Flow Characteristics
IF 4.8
ACS ES&T water Pub Date : 2025-02-18 DOI: 10.1021/acsestwater.4c0106010.1021/acsestwater.4c01060
Rasoul Daneshfaraz*, Amir Ghaderi, Arsalan Azali and Alban Kuriqi, 
{"title":"Enhancing Hydraulic Efficiency in Denil Fishway: Impact of Baffle Configurations on Flow Characteristics","authors":"Rasoul Daneshfaraz*,&nbsp;Amir Ghaderi,&nbsp;Arsalan Azali and Alban Kuriqi,&nbsp;","doi":"10.1021/acsestwater.4c0106010.1021/acsestwater.4c01060","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01060https://doi.org/10.1021/acsestwater.4c01060","url":null,"abstract":"<p >The fragmentation of river networks by man-made barriers such as dams has a significant impact on fish populations as it disrupts migration and habitat connectivity. This study aims to improve the hydraulic efficiency of Denil fishways by investigating the influence of different shapes of baffles (i.e., triangular, semicircular, and rectangular) on hydrodynamic parameters. Using computational fluid dynamics (CFD) simulations, we evaluated the performance of the modified guardrail configurations. The numerical model was validated by comparing computed flow depth (h<sub>u</sub>) and discharge coefficient (C<sub>d</sub>) with those measured experimentally from the literature. The study showed that the modified baffles significantly affected the flow characteristics. The rectangular baffles reduced the flow depth by up to 25.8% and increased the C<sub>d</sub> value by 75.7% compared to the standard triangular baffles. In addition, the rectangular baffle design was characterized by the creation of a low-velocity zone, which is crucial for fish passage, especially for smaller species. These results suggest that modified guardrail shapes can improve the hydraulic efficiency of Denil fishways, providing a potential solution to improve fish migration through fragmented river systems.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1295–1309 1295–1309"},"PeriodicalIF":4.8,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improvement and Practice of Evaluation Method of Vegetation Ecological Resilience under Drought Stress
IF 4.8
ACS ES&T water Pub Date : 2025-02-18 DOI: 10.1021/acsestwater.4c0100510.1021/acsestwater.4c01005
Cuimei Lv, Xuefeng Li, Minhua Ling*, Tianye Wang and Zhaoying Niu, 
{"title":"Improvement and Practice of Evaluation Method of Vegetation Ecological Resilience under Drought Stress","authors":"Cuimei Lv,&nbsp;Xuefeng Li,&nbsp;Minhua Ling*,&nbsp;Tianye Wang and Zhaoying Niu,&nbsp;","doi":"10.1021/acsestwater.4c0100510.1021/acsestwater.4c01005","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01005https://doi.org/10.1021/acsestwater.4c01005","url":null,"abstract":"<p >In the context of increasing global drought, what are the differences in the response and recovery characteristics of different vegetation to drought? The existing research mainly focuses on one aspect of vegetation resistance or recovery, lacking a comprehensive quantitative evaluation method of vegetation ecological resilience. The quantitative methodology for assessing vegetation resistance and recovery from drought, utilizing gross primary productivity (GPP), is refined in this paper. These two indicators of vegetation resistance and recovery are combined to develop an evaluation strategy for assessing vegetation ecological resilience under drought conditions. Taking the Yellow River Basin as an example, the results showed that the vegetation ecological resilience of the Yellow River Basin under drought stress showed a downward trend from 1982 to 2018. Spatially, the distribution of low resilience in arid and semiarid areas in the north and high resilience in river source and downstream areas is presented. The ecological resilience of woodland is the highest, that of grassland is the lowest. It helps to gain a deeper understanding of the drought adaptation mechanism of vegetation in the Yellow River Basin under the background of climate change, and provides support for the sustainable development of the vegetation ecosystem under environmental change.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1229–1239 1229–1239"},"PeriodicalIF":4.8,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Syringe Filters and Autosampler Vials Impact on Analysis of Long-, Short-, and Ultrashort-Chain Per- and Polyfluoroalkyl Substances
IF 4.8
ACS ES&T water Pub Date : 2025-02-18 DOI: 10.1021/acsestwater.4c0109010.1021/acsestwater.4c01090
Karen Noda Morishita, Haesung Lee, Changseok Han and Xi-Zhi Niu*, 
{"title":"Syringe Filters and Autosampler Vials Impact on Analysis of Long-, Short-, and Ultrashort-Chain Per- and Polyfluoroalkyl Substances","authors":"Karen Noda Morishita,&nbsp;Haesung Lee,&nbsp;Changseok Han and Xi-Zhi Niu*,&nbsp;","doi":"10.1021/acsestwater.4c0109010.1021/acsestwater.4c01090","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01090https://doi.org/10.1021/acsestwater.4c01090","url":null,"abstract":"<p >This study investigated the impact of a wide range of autosampler vials and syringe filters on quantitative analysis of long-, short-, and ultrashort-chain per- and polyfluoroalkyl substances (PFAS) in typically used solvents (water, natural organic matter (NOM), methanol, and acetonitrile). Mixed-PFAS solutions (100 μg L<sup>–1</sup>) stored in different polypropylene and glass vials (24 h) exhibited comparably satisfactory recoveries (102 ± 16%), indicating negligible interferences by vials and insignificant dissimilarity among different vials. Use of snap cap vials resulted in solution evaporation, especially for organic solvents. Syringe filters had significant and multifaceted impacts on the PFAS analysis. Notably, with small filtered volumes (1.5 mL), nylon filters markedly adsorbed all tested PFAS regardless of solvents; in water, trifluoroacetic acid was the only ultrashort-chain PFAS considerably retained by cellulose acetate (63% adsorbed for 1.5 mL filtered); overall, in water, long-chain PFAS were more significantly retained by filters than short- and ultrashort-chain homologues; in some cases, using organic solvent enhanced recoveries; PFNA and PFOS were substantially retained by glass fiber filters when in NOM solutions. This study highlighted the inclusion of ultrashort-chain PFAS for which available information was few; our results underscored the importance of experimental validation before selecting analytical consumables for accurate PFAS analysis.</p><p >This is an essential reference/guidance for the selection of autosampler vials and syringe filters for the analysis of long-, short-, and ultrashort-chain PFAS.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1344–1352 1344–1352"},"PeriodicalIF":4.8,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestwater.4c01090","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Stubborn “Chemical Invader”: Challenges and Solutions for Per- and Polyfluoroalkyl Substances (PFAS) in Chinese Sewage Sludge
IF 4.8
ACS ES&T water Pub Date : 2025-02-17 DOI: 10.1021/acsestwater.5c0006510.1021/acsestwater.5c00065
Yiqun Guo, Yu Hua*, Wan Yang, Jianfeng Zhou, Lihua Wang and Xiaohu Dai*, 
{"title":"The Stubborn “Chemical Invader”: Challenges and Solutions for Per- and Polyfluoroalkyl Substances (PFAS) in Chinese Sewage Sludge","authors":"Yiqun Guo,&nbsp;Yu Hua*,&nbsp;Wan Yang,&nbsp;Jianfeng Zhou,&nbsp;Lihua Wang and Xiaohu Dai*,&nbsp;","doi":"10.1021/acsestwater.5c0006510.1021/acsestwater.5c00065","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00065https://doi.org/10.1021/acsestwater.5c00065","url":null,"abstract":"","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1067–1070 1067–1070"},"PeriodicalIF":4.8,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In Situ Lanthanum Growth in Magnetic Chitosan Microgel for Accelerated Phosphate Separation from Water: Metal Efficiency, Specific Hydrogel Swelling, and Mechanistic Insights
IF 4.8
ACS ES&T water Pub Date : 2025-02-17 DOI: 10.1021/acsestwater.4c0115310.1021/acsestwater.4c01153
Bin Wang, Henglin Xiao, Guanghui Tao, Wenbin Guo, Lu Li, Hongyu Wang*, Junfeng Su, Zihan Zheng, Dao Zhou, Ling Chen* and Wangye Lu, 
{"title":"In Situ Lanthanum Growth in Magnetic Chitosan Microgel for Accelerated Phosphate Separation from Water: Metal Efficiency, Specific Hydrogel Swelling, and Mechanistic Insights","authors":"Bin Wang,&nbsp;Henglin Xiao,&nbsp;Guanghui Tao,&nbsp;Wenbin Guo,&nbsp;Lu Li,&nbsp;Hongyu Wang*,&nbsp;Junfeng Su,&nbsp;Zihan Zheng,&nbsp;Dao Zhou,&nbsp;Ling Chen* and Wangye Lu,&nbsp;","doi":"10.1021/acsestwater.4c0115310.1021/acsestwater.4c01153","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01153https://doi.org/10.1021/acsestwater.4c01153","url":null,"abstract":"<p >In this work, lanthanum was in situ incubated in magnetic chitosan microgel (LCS) for phosphate separation from surface water. Compared to commercial La(OH)<sub>3</sub> and its direct encapsulation into CS, in situ La incubation in CS structure could render an La efficiency (Γ<sub>La</sub>) 3.3 times higher than that of commercial La(OH)<sub>3</sub>, harvesting the highest P capacity (95.25 mg P/g) at the lowest La content. LCS microgel can be easily extracted by magnetic separation, regenerated by NaOH, and thus reused for cyclic phosphate removal. Compared to monovalent anions, divalent SO<sub>4</sub><sup>2–</sup> could largely accelerate P capture on LCS microgel within the first several hours. The effect of SO<sub>4</sub><sup>2–</sup> was comparatively analyzed in batch modes and then verified by stirred-flow reactors using practical lake water as the feed. Under continuous operation, the presence of SO<sub>4</sub><sup>2–</sup> could increase the dynamic P capacity and help suppress effluent P to a low concentration level, with the system breakthrough time nearly doubled. Further characterization analysis clarified the specific swelling behavior of LCS hydrogel network in the presence of SO<sub>4</sub><sup>2–</sup>, which could increase the specific surface area and pore size for phosphate diffusion and uptake. Overall, our work highlighted a promising option for the fabrication of inorganic/polymer composites and provided useful insights for water treatment.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1426–1436 1426–1436"},"PeriodicalIF":4.8,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heating Temperature and Oxygen Availability Alter the Role of Pyrogenic Dissolved Organic Matter in Sulfamethoxazole Photodegradation
IF 4.8
ACS ES&T water Pub Date : 2025-02-17 DOI: 10.1021/acsestwater.4c0085810.1021/acsestwater.4c00858
Biwei Yang, Dong Ren, Peng Zhang, Yifan Guo, Gan Zhang, Alex Tat-Shing Chow, Zongwei Cai, Penghui Du* and Junjian Wang*, 
{"title":"Heating Temperature and Oxygen Availability Alter the Role of Pyrogenic Dissolved Organic Matter in Sulfamethoxazole Photodegradation","authors":"Biwei Yang,&nbsp;Dong Ren,&nbsp;Peng Zhang,&nbsp;Yifan Guo,&nbsp;Gan Zhang,&nbsp;Alex Tat-Shing Chow,&nbsp;Zongwei Cai,&nbsp;Penghui Du* and Junjian Wang*,&nbsp;","doi":"10.1021/acsestwater.4c0085810.1021/acsestwater.4c00858","DOIUrl":"https://doi.org/10.1021/acsestwater.4c00858https://doi.org/10.1021/acsestwater.4c00858","url":null,"abstract":"<p >Increasingly frequent wildfires tend to raise the levels of pyrogenic dissolved organic matter (DOM) and affect the photodegradation of organic pollutants in waterbodies within fire-prone watersheds. However, it remains unclear whether heating temperature and oxygen availability modify the DOM impact on the photodegradation of pollutants, such as sulfamethoxazole, a frequently detected antibiotic of significant concern. Here, we investigated the effects of DOM from nonheated soil and hypoxically and aerobically heated soils (250 or 400 °C) on sulfamethoxazole photodegradation and quantified the influence percentages of multiple pathways, including light screening, photosensitization, and reverse-back reduction. All DOMs inhibited sulfamethoxazole photodegradation, with lower inhibition seen for hypoxically heated soil DOMs than others. Additionally, 400 °C-heated soil DOMs exhibited more pronounced photosensitizing and reverse-back reduction pathways than 250 °C-heated soil DOMs. The relative abundances of condensed aromatics and oxygen-rich aromatics, which were higher in DOM from aerobically heated soil than from soil heated hypoxically, were significantly correlated with the influence percentages of photosensitization and the reverse-back reduction pathways. Our findings underscore the importance of wildfire prevention in mitigating the impact of pyrogenic DOM (particularly from aerobic heating) on pollutant retention by inhibiting photodegradation.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1125–1136 1125–1136"},"PeriodicalIF":4.8,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Water in a Heated World
IF 4.8
ACS ES&T water Pub Date : 2025-02-14 DOI: 10.1021/acsestwater.5c0008810.1021/acsestwater.5c00088
Jörg E. Drewes*, Alexander Bassen, Markus Fischer, Anna-Katharina Hornidge, Karen Pittel, Hans-Otto Pörtner, Sabine Schlacke, Claudia Traidl-Hoffmann, Anke Weidenkaff, Mareike Blum, Kerstin Burghaus, Jonas Geschke, Tallulah Gundelach, Matti Gurreck, Rüdiger Haum, Sarah Löpelt, Katharina Michael, Alexander Mitranescu, Katharina Molitor, Jürgen Orasche, Benno Pilardeaux, Jan Siegmeier, Marion Schulte zu Berge, Dominique Schüpfer, Astrid Schulz and Finn Wendland, 
{"title":"Water in a Heated World","authors":"Jörg E. Drewes*,&nbsp;Alexander Bassen,&nbsp;Markus Fischer,&nbsp;Anna-Katharina Hornidge,&nbsp;Karen Pittel,&nbsp;Hans-Otto Pörtner,&nbsp;Sabine Schlacke,&nbsp;Claudia Traidl-Hoffmann,&nbsp;Anke Weidenkaff,&nbsp;Mareike Blum,&nbsp;Kerstin Burghaus,&nbsp;Jonas Geschke,&nbsp;Tallulah Gundelach,&nbsp;Matti Gurreck,&nbsp;Rüdiger Haum,&nbsp;Sarah Löpelt,&nbsp;Katharina Michael,&nbsp;Alexander Mitranescu,&nbsp;Katharina Molitor,&nbsp;Jürgen Orasche,&nbsp;Benno Pilardeaux,&nbsp;Jan Siegmeier,&nbsp;Marion Schulte zu Berge,&nbsp;Dominique Schüpfer,&nbsp;Astrid Schulz and Finn Wendland,&nbsp;","doi":"10.1021/acsestwater.5c0008810.1021/acsestwater.5c00088","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00088https://doi.org/10.1021/acsestwater.5c00088","url":null,"abstract":"","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1071–1074 1071–1074"},"PeriodicalIF":4.8,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestwater.5c00088","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identifying the Nonradical Mechanism in Mn Oxide-Mediated Peracetic Acid Activation Processes: Reactive Metal Species vs Electron Transfer Process
IF 4.8
ACS ES&T water Pub Date : 2025-02-13 DOI: 10.1021/acsestwater.4c0114710.1021/acsestwater.4c01147
Xinyue Zhang, Zhichao Yang*, Hongchao Li* and Bingcai Pan, 
{"title":"Identifying the Nonradical Mechanism in Mn Oxide-Mediated Peracetic Acid Activation Processes: Reactive Metal Species vs Electron Transfer Process","authors":"Xinyue Zhang,&nbsp;Zhichao Yang*,&nbsp;Hongchao Li* and Bingcai Pan,&nbsp;","doi":"10.1021/acsestwater.4c0114710.1021/acsestwater.4c01147","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01147https://doi.org/10.1021/acsestwater.4c01147","url":null,"abstract":"<p >Transition-metal oxide-mediated peroxide activation systems have been demonstrated to initiate selective degradation of pollutants, while the underlying mechanism remains unclear and sometimes controversial. In this study, we systematically explored the reactive species/pathways for pollutant degradation in the Mn oxide octahedron molecular sieve (OMS-2)-triggered peracetic acid (PAA) activation system. By separating PAA activation and pollutant oxidation processes using a sequential activation/oxidation system or galvanic oxidation system, we confirm that the OMS-2/PAA system follows the reactive metal species mechanism, where surface reactive Mn(IV) species, rather than Mn–PAA complexes, are primarily responsible for the nonradical oxidation of bisphenol A. OMS-2 shows varied peroxide-activating activities (i.e., catalase-like and peroxidase-like activities) toward different peroxides (i.e., H<sub>2</sub>O<sub>2</sub>, PAA, and persulfates), depending on the reactivity of surface reactive Mn(IV) species with those peroxides. In addition, the long-lived surface reactive Mn(IV) species exhibit excellent resistance to fluctuations in solution pH and interference from coexisting anions and natural organic matter. This study offers novel insights into the nonradical mechanism involved in Mn oxide-mediated peroxide activation processes.</p>","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 3","pages":"1406–1415 1406–1415"},"PeriodicalIF":4.8,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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