ACS ES&T engineering最新文献_第9页

Regulation of the Electronic Structure and Charge Behaviors Derived from Single-Atom Iron for Photocatalytic Water Purification 光催化水净化中单原子铁电子结构和电荷行为的调控

IF 6.7

ACS ES&T engineering Pub Date : 2025-05-19 DOI: 10.1021/acsestengg.5c00206

Min Dai, Zhihui Yin, Shuaiqi Zhang, Fengming Situ, Xiaoyue Zhou, Jun Xiong, Ning Jiang, Peng Zhang*, Chun Hu and Fan Li*,

{"title":"Regulation of the Electronic Structure and Charge Behaviors Derived from Single-Atom Iron for Photocatalytic Water Purification","authors":"Min Dai, Zhihui Yin, Shuaiqi Zhang, Fengming Situ, Xiaoyue Zhou, Jun Xiong, Ning Jiang, Peng Zhang*, Chun Hu and Fan Li*, ","doi":"10.1021/acsestengg.5c00206","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00206","url":null,"abstract":"Large-scale and sustainable photocatalytic water treatment requires semiconductors with appropriate band structures and efficient charge transfer properties. Motivated by this point, a facial method is reported for synthesizing an efficient single-atom photocatalyst (FeSA-PCN) consisting of polymeric graphitic carbon nitride (g-C3N4) rationally integrated with Fe single atoms (Fe SAs). Fe SAs not only enhance the oxidation ability of the holes on the valence band but also introduce a doping energy level directly into the band gap, significantly expanding the light absorption range of FeSA-PCN. The density functional theory (DFT) calculations and characterization results such as Kelvin probe force microscopy (KPFM) imply that a significant polarized distribution of surface charges is constructed owing to the electronic interaction between Fe SAs and g-C3N4. This enables the efficient separation and transfer of photogenerated charge carriers for surface reactions. Subsequently, high-oxidation-capability holes directly oxidize adsorbed pollutants, while electrons are captured by oxygen, reduced via a two-electron process to H2O2, and further activated into •OH for pollutant degradation. Consequently, FeSA-PCN demonstrates outstanding efficiency in pollutant degradation, resistance to interference, and stability, which proposes a promising strategy for developing g–C3N4–based photocatalysts for applications in environmental remediation.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 9","pages":"2294–2304"},"PeriodicalIF":6.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036482","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

CeO2 Promoted CuO/MgO-Al2O3 Catalyst with Enhanced Activity and Water-Resistance for CO Oxidation CeO2促进CuO/MgO-Al2O3催化剂增强CO氧化活性和耐水性

IF 6.7

ACS ES&T engineering Pub Date : 2025-05-19 DOI: 10.1021/acsestengg.5c00303

Kailong Ye, Shaohua Xie*, Xing Zhang, Daekun Kim, Jeremia Loukusa, Lu Ma, Steven N. Ehrlich and Fudong Liu*,

{"title":"CeO2 Promoted CuO/MgO-Al2O3 Catalyst with Enhanced Activity and Water-Resistance for CO Oxidation","authors":"Kailong Ye, Shaohua Xie*, Xing Zhang, Daekun Kim, Jeremia Loukusa, Lu Ma, Steven N. Ehrlich and Fudong Liu*, ","doi":"10.1021/acsestengg.5c00303","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00303","url":null,"abstract":"Copper (Cu)-based catalysts have emerged as cost-effective and sustainable alternatives to noble metal systems (e.g., Pt, Pd) for catalytic CO oxidation. However, their practical application is hindered by insufficient low-temperature activity and rapid deactivation under wet conditions containing moisture. To address these challenges, this work introduces CeO2-modified CuO/MgO-Al2O3 (Cu-Ce/MA) catalysts, strategically designed to enhance the catalytic performance and water resistance simultaneously. These catalytic materials were evaluated for CO oxidation under both dry and humid conditions, revealing that CeO2 modification significantly improves the low-temperature activity. Specifically, the optimal catalyst, Cu-30Ce/MA, achieved a 50% CO conversion temperature (T50) of 151 °C, a marked reduction from 218 °C on Cu/MA reference catalyst. Furthermore, the water resistance improves in a CeO2 content-dependent manner, with higher CeO2 loadings imparting greater stability in humid environments. Detailed characterizations demonstrate that CeO2 promotes the dispersion of CuO and stabilizes Cu sites, while also enhancing the low-temperature reducibility and CO adsorption capacity. Crucially, CeO2 modification suppresses the competitive H2O adsorption, mitigating water-induced deactivation. These synergistic effects collectively rationalize the superior activity and durability of Cu-Ce/MA catalysts. By elucidating the dual role of CeO2 in optimizing Cu-based systems, this study advances the rational design of cost-effective catalysts for real-world CO emission control, particularly under water-rich industrial conditions.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 8","pages":"2127–2137"},"PeriodicalIF":6.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsestengg.5c00303","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144809075","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

Carbonic Anhydrase-Integrated Silk Hydrogels for Efficient Microalgae Growth and Carbon Fixation 碳酸酐酶整合丝水凝胶用于微藻生长和固碳

IF 7.4

ACS ES&T engineering Pub Date : 2025-05-19 DOI: 10.1021/acsestengg.4c0083110.1021/acsestengg.4c00831

Taoqing He, Yawen Yin, XingXing Li, Lei Zhu, Zhaozhu Zheng, Gang Li, Xiaoqin Wang* and David L. Kaplan,

{"title":"Carbonic Anhydrase-Integrated Silk Hydrogels for Efficient Microalgae Growth and Carbon Fixation","authors":"Taoqing He, Yawen Yin, XingXing Li, Lei Zhu, Zhaozhu Zheng, Gang Li, Xiaoqin Wang* and David L. Kaplan, ","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":"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.","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}

引用次数: 0

Mechanical Stirring Restructures Mass Transfer and Microbial Metabolism in Pilot-Scale Solid-State Anaerobic Digesters 机械搅拌重组中试固体厌氧消化池的传质和微生物代谢

IF 6.7

ACS ES&T engineering Pub Date : 2025-05-19 DOI: 10.1021/acsestengg.5c00137

Hongyi Lyu, Ruixiao Yan, Mengyi Wang, Tairan Liu, Suqi Li, Caiyun Yang and Yiqing Yao*,

{"title":"Mechanical Stirring Restructures Mass Transfer and Microbial Metabolism in Pilot-Scale Solid-State Anaerobic Digesters","authors":"Hongyi Lyu, Ruixiao Yan, Mengyi Wang, Tairan Liu, Suqi Li, Caiyun Yang and Yiqing Yao*, ","doi":"10.1021/acsestengg.5c00137","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00137","url":null,"abstract":"Mechanical stirring is the most efficient method for enhancing solid-state anaerobic digestion (SS-AD). However, the current understanding of its mass and heat transfer is limited due to experimental constraints. Here, two 100 L SS-AD reactors were established: one with mechanical stirring and the other without. Temperature distributions were conducted to study heat transfer; computational fluid dynamics (CFD) was combined with the effective diffusion coefficient (Deff) to validate mass transfer. Environmental parameters were incorporated to determine the influence of heat and mass transfer on the microenvironment. The results revealed that the cumulative CH4 yield with mechanical stirring was increased by 32.21%. Mass transfer had a greater impact on the microenvironment and microbial communities’ distribution than heat transfer. During the start-up stage of AD, mechanical stirring facilitated the homogeneous dispersion of microorganisms. It promoted substrate hydrolysis, while reducing methanogenic potential on the peak CH4 production phase, indicating a lower intensity of mechanical stirring is required in the following methanogenesis stage. For this case, metagenome analysis confirmed that mechanical stirring enhanced microbial mobility and environmental adaptability. However, it limited microbial DNA synthesis, ribosome, and functions related to microbial reproduction, resulting in a reduction in the CH4 production potential of the reactor.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 9","pages":"2201–2211"},"PeriodicalIF":6.7,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036481","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

Recent Advances in Engineering Functional Catalysts toward Multicomponent VOC Purification under Reality 多组分VOC净化工程功能催化剂研究进展

IF 7.4

ACS ES&T engineering Pub Date : 2025-05-16 DOI: 10.1021/acsestengg.5c0015910.1021/acsestengg.5c00159

Jicheng Liu, Yani Wu, Chunli Zheng*, Mingjiao Tian, Zeyu Jiang*, Reem Albilali and Chi He*,

{"title":"Recent Advances in Engineering Functional Catalysts toward Multicomponent VOC Purification under Reality","authors":"Jicheng Liu, Yani Wu, Chunli Zheng*, Mingjiao Tian, Zeyu Jiang*, Reem Albilali and Chi He*, ","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":"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 NOx, 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.","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}

引用次数: 0

Enhanced and Synergistic Peroxymonosulfate Activation by Piezoelectric-Driven Hydrogel-Encapsulated Z-Scheme Heterojunction for Levofloxacin Degradation 压电驱动水凝胶包封z型异质结增强和协同活化左氧氟沙星降解

IF 6.7

ACS ES&T engineering Pub Date : 2025-05-12 DOI: 10.1021/acsestengg.5c00084

Rongyao Wang, Shuai Wang, Baoli Du, Xiaoyu Bai, Daowei Gao, Xiaohua Ren, Weilin Guo* and Guozhu Chen*,

{"title":"Enhanced and Synergistic Peroxymonosulfate Activation by Piezoelectric-Driven Hydrogel-Encapsulated Z-Scheme Heterojunction for Levofloxacin Degradation","authors":"Rongyao Wang, Shuai Wang, Baoli Du, Xiaoyu Bai, Daowei Gao, Xiaohua Ren, Weilin Guo* and Guozhu Chen*, ","doi":"10.1021/acsestengg.5c00084","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00084","url":null,"abstract":"Actualizing energy-efficient and sustainable activation of peroxymonosulfate (PMS) for advanced wastewater treatment remains a persistent challenge. While piezoelectric materials can harness mechanical energy to activate PMS, they often suffer from inefficient carrier separation, limited active sites, and poor recyclability. Here, we introduce a novel piezoelectric-driven approach for PMS activation using a chitosan hydrogel-encapsulated BaTiO3/MoS2 Z-scheme heterojunction (denoted as BTO/MS@CSH). The interfacial electric field within the BTO/MS heterojunction provides a strong driving force for electron–hole separation, ensuring a consistent supply of piezo-excited carriers for cleaving the O–O bonds in PMS. The hydrogel encapsulation is conducive to rapid PMS capture and electron transfer via its functional groups and 3D polymer chain spatial structure, further reducing catalyst consumption, preventing metal leaching, and allowing for easy recovery. This integrated system achieves a remarkable 96.1% degradation of levofloxacin (LEV) within 60 min, with a rate constant of 0.0446 min–1, demonstrating the synergistic interaction between piezoelectric catalysis and PMS activation while enhancing reactive oxygen species (ROS) generation. Ultimately, the synergistic action of various ROS ensures the mineralization of LEV and safe, nontoxic disposal. This study provides insights into the design of advanced piezoelectric catalysts for sustainable environmental remediation.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 7","pages":"1844–1856"},"PeriodicalIF":6.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144809039","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

Synergistic Catalytic Elimination of NOx and CH3SH in CaO-Containing Flue Gases 含cao烟气中NOx和CH3SH的协同催化去除

IF 6.7

ACS ES&T engineering Pub Date : 2025-05-12 DOI: 10.1021/acsestengg.5c00221

Lupeng Han, Yinglin Song, Hui Zhang, Fuli Wang, Huijun Yu, Jin Zhang, Dengchao Peng, Xiaonan Hu*, Ming Xie and Dengsong Zhang*,

{"title":"Synergistic Catalytic Elimination of NOx and CH3SH in CaO-Containing Flue Gases","authors":"Lupeng Han, Yinglin Song, Hui Zhang, Fuli Wang, Huijun Yu, Jin Zhang, Dengchao Peng, Xiaonan Hu*, Ming Xie and Dengsong Zhang*, ","doi":"10.1021/acsestengg.5c00221","DOIUrl":"https://doi.org/10.1021/acsestengg.5c00221","url":null,"abstract":"Nitrogen oxides (NOx) and methyl mercaptan (CH3SH) are prevalent atmospheric pollutants that frequently coexist in industrial flue gases emitted from the petroleum chemical industry, municipal waste incineration, and biomass combustion. It is challenging to achieve the synergistic catalytic elimination of NOx and CH3SH in CaO-containing flue gases. A comprehensive investigation into the copoisoning mechanisms of CaO and CH3SH is essential yet remains insufficiently explored. In this work, we unravel the antagonistic effects between CaO and sulfate species on a CuO/Al2O3 model catalyst during the synergistic catalytic elimination of NOx and CH3SH. In the absence of CaO, the SO42– species generated from the oxidation of CH3SH can occupy CuO sites, resulting in suboptimal CO2 selectivity. However, in the presence of CaO, the SO42– species can preferentially bind to CaO that is combined with the Al2O3 support. Such a CaO-induced shift in sulfate species bridging behavior not only liberates CuO active sites but also modulates their electronic structures, thereby enhancing the CO2 selectivity. These findings demonstrate that CaO can mitigate the poisoning effects of CH3SH on the catalyst during the synergistic catalytic elimination of NOx and CH3SH. This research offers valuable insights for designing catalysts capable of synergistically eliminating NOx and sulfur-containing VOCs in complex flue gases containing alkaline impurities.","PeriodicalId":7008,"journal":{"name":"ACS ES&T engineering","volume":"5 8","pages":"2108–2117"},"PeriodicalIF":6.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144809038","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

IF 7.4

ACS ES&T engineering Pub Date : 2025-05-09

Lianghui Xia, Yujie Liu, Kang Hui Lim, Qiyuan Liu, Meizan Jing*, Yanfei Jian, Jingjing Wang, He Xu, Mudi Ma*, Shouning Chai, Reem Albilali and Chi He*,

引用次数: 0

IF 7.4

ACS ES&T engineering Pub Date : 2025-05-09

Jinqi Jiang, Qingshan Lin, Xiaohong Guan, Shuai Zhou, Shifa Zhong, Xiang Xiang, Zongping Wang, Guanghao Chen and Gang Guo*,

引用次数: 0

IF 7.4

ACS ES&T engineering Pub Date : 2025-05-09

引用次数: 0