ACS ES&T engineering最新文献

{"title":"Activation of High-Valent Metal Oxidants on Carbon Catalysts: Mechanisms, Applications and Challenges","authors":"Yonghui Fan,&nbsp;Qiming Zhang,&nbsp;Yu Peng,&nbsp;Jinwen Zeng,&nbsp;Wei Ren*,&nbsp;Xiao Xiao and Xubiao Luo*,&nbsp;","doi":"10.1021/acsestengg.5c0016410.1021/acsestengg.5c00164","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00164https://doi.org/10.1021/acsestengg.5c00164","url":null,"abstract":"<p >High-valent metal oxidants (HVMOs) have attracted considerable attention in advanced oxidation processes (AOPs) due to their high selectivity for oxidizing organic pollutants. However, the pursuit of green and efficient activators, together with the clarification of external factors affecting HVMO performance, remains a major challenge in practical applications. In this review, we present a comprehensive overview of the chemical properties of HVMOs, with a particular emphasis on their oxidation characteristics, focusing on permanganate (MnO₄^–), ferrate (FeO₄^–), dichromate (Cr₂O₇^2–). We further analyze energy changes and redox potential variations during the oxidation process. Recent advances in the activation of HVMOs by metal-free carbon materials are summarized, and the potential effects of common coexisting substances in environmental matrices, such as H⁺, OH^–, inorganic anions, metal ions, and natural organic matter (NOM), are critically examined. Moreover, potential risks associated with residual HVMOs after organic pollutant oxidation are discussed, along with relevant separation and purification strategies. This review aims to deepen the understanding of HVMOs in environmental catalysis, explore their potential for resource recovery, and provide perspectives on future research directions and practical applications.</p>","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 6","pages":"1338–1356 1338–1356"},"PeriodicalIF":7.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269587","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}

{"title":"Unveiling Stainless-Steel Corrosion in the Drinking Water Distribution System: Interdisciplinary Insights on Water Quality and Anticorrosion Design","authors":"Xinyu Pan,&nbsp;Yumeng Zhao*,&nbsp;Xuhui Dang,&nbsp;Meng Sun,&nbsp;Gang Liu*,&nbsp;Gang Wen,&nbsp;Xinlei Li,&nbsp;Ao Chen,&nbsp;Chotiwat Jantarakasem,&nbsp;Federick Pinongcos,&nbsp;Linda Li and Jun Ma,&nbsp;","doi":"10.1021/acsestengg.5c0026010.1021/acsestengg.5c00260","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00260https://doi.org/10.1021/acsestengg.5c00260","url":null,"abstract":"<p >Drinking water distribution system (DWDS) necessitates sustainable, durable, and nonpolluting materials for enhanced water quality of the end-users. Stainless steel (SS) is gaining momentum in DWDS, particularly in end-point distribution facilities such as secondary water storage tanks, pumps, and household water pipes due to its high chemical stability and robust mechanical strength. However, SS’s susceptibility to corrosion in given defect areas is of great concern, and there is a lack of fundamental insight on SS corrosion from an interdisciplinary perspective of materials science and environmental science. Herein, the SS corrosion in the DWDS environment is critically assessed, encompassing the basic science of SS corrosion occurrence, its cascading influence on water quality, and anticorrosion strategies. Electrochemical corrosion mechanisms of SS corrosion are specifically differentiated, particularly those initiated at given SS defects, including welding points, grain boundaries, and areas with tensile stress. It is shown that SS corrosion influences water quality by destroying the Cr-rich passive film and releasing Cr, Fe, and other heavy metals from the corrosion scale. The critical factors influencing SS corrosion are subsequently identified, namely, SS elemental composition, SS manufacturing process (e.g., heat-affected zone, stress concentration), and water condition in DWDS (e.g., chlorine, oxygen, sulfate, hydraulic shock, pH). Corresponding strategies are elucidated to facilitate the anticorrosion resistance of SS and improve the water quality, including SS alloying enhancement, SS dispersion strengthening, SS surface treatment/modification, and tuning water condition in DWDS. Overall, this review highlights the importance of controlling SS corrosion, which could provide guidance on the rational design and utilization of SS in DWDS to enhance the ultimate water quality of the end-users and the overall resilience of the DWDS.</p>","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 6","pages":"1357–1372 1357–1372"},"PeriodicalIF":7.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269613","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}

{"title":"Carbonic Anhydrase-Integrated Silk Hydrogels for Efficient Microalgae Growth and Carbon Fixation","authors":"Taoqing He,&nbsp;Yawen Yin,&nbsp;XingXing Li,&nbsp;Lei Zhu,&nbsp;Zhaozhu Zheng,&nbsp;Gang Li,&nbsp;Xiaoqin Wang* and David L. Kaplan,&nbsp;","doi":"10.1021/acsestengg.4c0083110.1021/acsestengg.4c00831","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00831https://doi.org/10.1021/acsestengg.4c00831","url":null,"abstract":"<p >Microalgae can capture CO₂ from the air and convert it into biomass and valuable byproducts, positioning these organisms as the key in terms of sustainable carbon fixation technologies. However, cultivating microalgae efficiently and cost-effectively remains a significant challenge. In this study, we enhanced the cultivation of microalgal cells within a silk/alginate hydrogel, shielded by CO₂ adsorption/desorption functional fabrics, to generate an innovative sandwich-structured composite system. Additionally, carbonic anhydrase-encapsulated silk fibroin nanoparticles were synthesized and co-embedded with the microalgae in the hydrogel. This silk-based microencapsulation sustained enzymatic activity, improving the conversion of CO₂ to bicarbonate and providing vital inorganic carbon for microalgal growth. The integration of microchannels within the gel facilitated continuous flow of culture medium via a microinjection pump, addressing nutrient deficiencies during prolonged exposure to air. Our findings indicate that microalgae cultivated in this system exhibit a significantly higher growth rate and carbon fixation rate compared to control setups, highlighting their potential as a carbon fixation system.</p>","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 6","pages":"1373–1384 1373–1384"},"PeriodicalIF":7.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269528","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}

{"title":"Recent Advances in Engineering Functional Catalysts toward Multicomponent VOC Purification under Reality","authors":"Jicheng Liu,&nbsp;Yani Wu,&nbsp;Chunli Zheng*,&nbsp;Mingjiao Tian,&nbsp;Zeyu Jiang*,&nbsp;Reem Albilali and Chi He*,&nbsp;","doi":"10.1021/acsestengg.5c0015910.1021/acsestengg.5c00159","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00159https://doi.org/10.1021/acsestengg.5c00159","url":null,"abstract":"<p >Volatile organic compounds (VOCs) have caused serious harm to human health and the ecological environment. As a promising strategy, the catalytic oxidation of VOCs into harmless products such as H₂O and CO₂ has been widely employed. Although many catalysts have been developed for VOC decomposition, the design and synthesis of functional catalysts toward multicomponent VOC purification in industrial exhaust gas under reality remains a great challenge. In the actual vent, the composition of multicomponent VOCs is complex and impurities such as NO_<i>x</i>, SO₂, and H₂O are also present. Traditional catalysts often suffer from poor stability, deactivation by impurities, and inefficient oxidation of complex VOC mixtures in industrial settings. Addressing these challenges requires a deeper understanding of the fundamental mechanisms and advanced catalyst design strategies. Therefore, elucidating the mechanism of multicomponent VOC oxidation and revealing the influential behavior of impurities are urgently required to guide researchers on how to synthesize effective and stable catalysts proactively for multicomponent VOC purification under reality. Accordingly, this review systematically summarizes the recent advances in the engineering of highly active and durable catalysts for the oxidation of multicomponent VOCs. The experimental and theoretical studies revealing the mixing effects occurring in the catalytic oxidation process of multicomponent VOCs are also highlighted. Further development of and research on catalysts to be adopted in multipollutant controlling are proposed. This review can help researchers to better understand the catalytic elimination of multicomponent VOCs and provide a great foundation for future design and practical industrial application of VOC oxidation catalysts.</p>","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 6","pages":"1316–1337 1316–1337"},"PeriodicalIF":7.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269912","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}

{"title":"Development of a Double-Metal-Cross-Linked Hydrogel Filler as a Stable Heterogeneous Fenton Catalyst for Organic Wastewater Degradation","authors":"Qinglong Li,&nbsp;Daoyuan Wang,&nbsp;Xiaojun Wang,&nbsp;Deqiu Wang,&nbsp;Zishuai Xu,&nbsp;Meilin Wu,&nbsp;Kaijian Zou,&nbsp;Baoyan Wang* and Xiaoliang Tang*,&nbsp;","doi":"10.1021/acsestengg.4c0094710.1021/acsestengg.4c00947","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00947https://doi.org/10.1021/acsestengg.4c00947","url":null,"abstract":"<p >Heterogeneous Fenton catalysts for wastewater treatment have garnered substantial attention due to their reusability and separability in engineering applications. Herein, we designed a millimeter-scale spherical hydrogel bead-based Fenton catalyst (PVA/Alg–Fe–Ce) with poly(vinyl alcohol)/Ce-alginate cross-linked hydrogel as the backbone and the iron site as the H₂O₂ activation center using a sol–gel method. The catalyst PVA/Alg–Fe–Ce with a stable double-network structure not only possessed good mechanical properties (0.8 MPa compressive stress at 50% compressive strain) and chemical stability (iron leakage of 0.14 mg/L) during the Fenton reaction but also exhibited fast catalytic degradation capacity for organic pollutants (rhodamine B, RhB) within 20 min. The results of the toxicity assessment showed that ecotoxicity could be reduced. More importantly, a continuous-flow Fenton reactor packed with PVA/Alg–Fe–Ce beads could efficiently treat 30 bed volumes of organic wastewater with over 90% removal of RhB, which may provide a strategy for developing durable, efficient, and environment-friendly heterogeneous Fenton catalysts based on a high-strength hydrogel system convenient for treating organic sewage.</p>","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 6","pages":"1462–1476 1462–1476"},"PeriodicalIF":7.4,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269545","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}

{"title":"Co-Upcycling of Waste Electronic Plastics and Algae Biomass into High-Quality Pyrolysis Oil through Self-Catalytic Debromination and Oil Upgrading","authors":"Yuan Kong,&nbsp;Si-Xian Wang,&nbsp;Jia-Wei Huang,&nbsp;Yun Ge,&nbsp;Zhi-Yan Guo,&nbsp;Wen-Wei Li* and Wu-Jun Liu*,&nbsp;","doi":"10.1021/acsestengg.4c0060010.1021/acsestengg.4c00600","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00600https://doi.org/10.1021/acsestengg.4c00600","url":null,"abstract":"<p >Upcycling waste plastics into fuel oil and gases offers an important route for waste-to-wealth conversion. However, the valorization of waste electronic plastics (WEP) remains challenging because the brominated flame retardant (BFR) components are easily converted to hazardous brominated organics, which lowers the product quality. Here, we report the copyrolysis of WEP with iron-rich algae biomass waste for high-quality oil production without the need for the external addition of a catalyst for bromine (Br) fixation. Iron-based flocculants are commonly used for collecting algae biomass from an algal-bloomed lake, resulting in iron-rich algae biomass. During its pyrolysis, the iron component was converted into Fe₂O₃, which served as an efficient endogenous catalyst to facilitate Br fixation and WEP depolymerization. The oil product of the copyrolysis system (WEP/AB = 1:1, 600 °C) exhibited 80% less Br content, a 30% higher fraction of total aromatic compounds, and a 15% higher oil yield than those of the WEP-alone group. Overall, our work offers a facile self-catalytic debromination strategy for WEP upcycling by simply mixing it with iron-rich algae biomass waste for copyrolysis. Such a “two-birds-one-stone” strategy may also be extended to the upcycling of other halogen-containing organic wastes.</p>","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 5","pages":"1088–1098 1088–1098"},"PeriodicalIF":7.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921341","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}

{"title":"Environmental Biotechnologies Enabling a Carbon-Neutral Circular Economy","authors":"Hee-Deung Park*,&nbsp;George F. Wells,&nbsp;Hyung-Sool Lee and Nancy G. Love,&nbsp;","doi":"10.1021/acsestengg.5c0029110.1021/acsestengg.5c00291","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00291https://doi.org/10.1021/acsestengg.5c00291","url":null,"abstract":"","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 5","pages":"1085–1087 1085–1087"},"PeriodicalIF":7.4,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921271","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}

{"title":"ACS ES&T Engineering’s 2024 Excellence in Review Awards","authors":"Wonyong Choi*,&nbsp;Jingyun Fang,&nbsp;Manish Kumar,&nbsp;Jaehong Kim,&nbsp;Robert Nerenberg,&nbsp;Brian Chaplin and Fan Dong,&nbsp;","doi":"10.1021/acsestengg.5c0022510.1021/acsestengg.5c00225","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00225https://doi.org/10.1021/acsestengg.5c00225","url":null,"abstract":"","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 4","pages":"829 829"},"PeriodicalIF":7.4,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814590","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}

{"title":"Unveiling the Role of Intermittent Electrostimulation: Enhancing Microbial Metabolism and Electron Transfer in Electroactive Biofilms to Optimize V(V) Reduction and Immobilization","authors":"Boyu Jia,&nbsp;Siyu Zhang,&nbsp;Lijuan Zhang*,&nbsp;Weijia Li,&nbsp;Qunying Wang,&nbsp;Juanjuan Wan,&nbsp;Wanqing Zeng,&nbsp;Simona Rossetti,&nbsp;Bo Yan* and Xintai Su,&nbsp;","doi":"10.1021/acsestengg.5c0000510.1021/acsestengg.5c00005","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00005https://doi.org/10.1021/acsestengg.5c00005","url":null,"abstract":"<p >Intermittent electrostimulation plays a crucial role in the microbial processing of toxic vanadate [V(V)], influencing microbial metabolism, extracellular polymeric substances (EPS) secretion, and population dynamics. However, its influence on these aspects, particularly regarding microbial metabolism pathways and electron transfer mechanisms mediated by microbial metabolic activities, remains inadequately elucidated. Herein, electric-stimulated reactors incorporating different electrostimulation modes (continuous, intermittent, and none) were constructed and operated for over 150 days, with or without electroactive bacteria (EAB), to evaluate the V(V) reduction and immobilization. The bioreactor employing intermittent electrostimulation with an EAB-enriched inoculum (IP/AS-EB) showed rapid and efficient startup, achieving stable performance with significantly higher V(V) reduction efficiency (RE: 95.8%) and immobilization efficiency (IE: 93.1%) compared to those with continuous electrostimulation (CP/AS-EB: RE, 89.4%; IE, 68.9%) and control groups (AS-EB Ctrl: RE, 65.1%; IE, 52.5%). The reduction product included amorphous VO(OH)₂ and CaV₂(PO₄)₂(OH)₄·3H₂O, both occurring either intracellularly or extracellularly. Increased activity in the IP/AS-EB reactor results from enhanced targeted microbial and EPS, significantly enriching species like <i>Geobacter</i>, <i>Petrimonas</i>, <i>Rhodococcus</i>, <i>Sedimentibacter</i>, and <i>Christensenellaceae</i>_R-7_group. Total EPS, particularly humic-like substances and proteins, was significantly higher in IP/AS and IP/AS-EB reactors than in CP/AS, CP/AS-EB, and control groups. Besides, proteomic analysis further indicated that intermittent electrostimulation enriched bacteria capable of producing significant amounts of humic substances, redox-active proteins, and electron transfer proteins. These components, along with endogenous electron mediators identified via metabolomic analyses, effectively facilitated electron transfer within respiratory chains and interspecies. This study elucidates how intermittent electrostimulation boosts specific microbial communities and their metabolic pathways, offering insights into optimizing V(V) reduction processes and broadening their potential applications in heavy metal bioremediation.</p>","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 6","pages":"1538–1550 1538–1550"},"PeriodicalIF":7.4,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269541","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}

{"title":"Electrostatic Precipitator with a Superhydrophobic Coating for Efficient Filtration of Submicron Particles","authors":"Chenhua Wang,&nbsp;Chenzheng Yan,&nbsp;Junjie Liu*,&nbsp;Zhiyang Zhang and Xu Han*,&nbsp;","doi":"10.1021/acsestengg.4c0086210.1021/acsestengg.4c00862","DOIUrl":"https://doi.org/10.1021/acsestengg.4c00862https://doi.org/10.1021/acsestengg.4c00862","url":null,"abstract":"<p >Electrostatic precipitators (ESPs) have been extensively exploited owing to their cost-effectiveness and low-maintenance options in buildings. However, existing ESPs have low filtration efficiency for submicron particles and inefficient cleaning after dust loading. Here, an ESP with a superhydrophobic coating was proposed, and the effects of the electrode gap, charging voltage, air velocity and electric field strength of the ESP on submicron particles were considered. The results revealed that the contact angle and sliding angle of the water on the coating surface were 158.0° ± 1.1° and 2.1° ± 0.5°, respectively, due to the combination of low-surface-energy groups and highly rough structures. The filtration efficiency of the submicron particles increased with increasing charging voltage and electric field strength but decreased with increasing air velocity and electrode gap. When the air velocity was 2.5 m/s, the filtration efficiency of the ESP for 0.3–0.5 μm particles reached 96.5%. The filtration efficiency remained relatively high for 28 days, with an average of 95.6%. The filtration efficiency of the ESP for 0.3–0.5 μm particles can be restored to 99.8% of the initial efficiency, while the restoration of existing ESP is 67.5%. The ESP can maintain the filtration efficiency of 0.3–0.5 μm particles at approximately 95.0% after six cycles. The proposed ESP has great air filtering potential in ventilation systems for clean and sustainable building environments.</p>","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 5","pages":"1215–1225 1215–1225"},"PeriodicalIF":7.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921517","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}