Journal of Environmental Chemical Engineering最新文献

{"title":"Ultrasonic methods for effective soil remediation","authors":"Duofei Hu ,&nbsp;Zhen Wu ,&nbsp;Yanmei Tian ,&nbsp;Shiqi Liu ,&nbsp;Pengfei Hou ,&nbsp;Jinsong Liang ,&nbsp;Guangming Zhang","doi":"10.1016/j.jece.2025.118160","DOIUrl":"10.1016/j.jece.2025.118160","url":null,"abstract":"<div><div>Soil contamination presents significant remediation challenges due to the obstruction and adsorption effects of soil particles, which often constrain the efficiency of conventional remediation technologies. Therefore, developing innovative techniques to enhance soil remediation efficiency is of paramount importance. This review explores the application of ultrasound in soil remediation, highlighting its potential to address these challenges. Ultrasonic processes generate sonochemical effects, including cavitation, acoustic streaming, and thermal effects, which can directly facilitate soil remediation. Additionally, ultrasound enhances remediation efficiency by accelerating mass transfer and activating oxidants, thereby reducing remediation time. This paper reviews three key ultrasonic soil remediation technologies: Ultrasound-Soil Washing (US-SW), Ultrasound-Advanced Oxidation Processes (US-AOPs), and Ultrasound-Electrokinetic Remediation (US-EKR). It summarizes the mechanisms of ultrasonic soil remediation. Influential factors affecting these technologies are analyzed, and novel design concepts for ultrasonic reactors are proposed to advance the development of ultrasonic soil remediation techniques and overcome critical mass transfer limitations. Finally, it discusses the shortcomings of related studies and provides an outlook for future research. These advancements aim to improve the efficacy and practicality of ultrasound-based approaches for addressing soil contamination.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118160"},"PeriodicalIF":7.4,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in biomass chemical looping combustion technology: Process control and comprehensive evaluation","authors":"Guanyi Chen ,&nbsp;Kaidi Yang ,&nbsp;Xiyue Sun ,&nbsp;Xiaochao Zhu ,&nbsp;Weijun Chen ,&nbsp;Donghao Hou ,&nbsp;Zhanjun Cheng ,&nbsp;Beibei Yan","doi":"10.1016/j.jece.2025.118142","DOIUrl":"10.1016/j.jece.2025.118142","url":null,"abstract":"<div><div>Biomass chemical looping combustion (bio-CLC) technology represents a highly cost-effective method for carbon capture, offering significant prospects for practical applications. This paper reviews the critical process control factors of bio-CLC, including the type of biomass feedstock, operating conditions such as temperature and pressure, circulation rate, and the oxygen carrier-to-fuel ratio. Among oxygen carriers, mineral-based options like Fe-, Cu-, and Mn-based carriers, are identified as optimal for biomass processing. Ilmenite is particularly effective among these options. Biomass ash plays a pivotal role in the reaction process by interacting with the oxygen carrier. Sodium (Na) typically inhibits the reactivity of iron-based carriers, while potassium (K) is not significant. The alkaline ash content emitted by the fuel reactor (FR) is over seven times greater than that from the air reactor (AR), however ilmenite can absorb more than 95 % of this alkali. Techno-economic analyses reveal that biomass CLC for power generation can achieve CO₂ capture efficiencies exceeding 90 %, with net electrical efficiencies over 40 %. Despite an approximate 10 % increase in costs, biomass CLC remains one of the most economically viable carbon capture technologies. Life Cycle Assessment (LCA) further confirms that bio-CLC offers substantial environmental benefits, bio-CLC can reduce GWP by over 90 % in some cases, which significantly influenced by OC processing. Current research remains insufficient in integrating pretreatment processes. Ilmenite, manganese ores, and industrial metallic wastes are the most practical oxygen carriers for industrial use. To move forward, pilot-scale experiments and systematic scaling tests are urgently needed.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118142"},"PeriodicalIF":7.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144657220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Progress in graphene quantum dots, graphene oxide and reduced graphene oxide based materials for chemoresistive gas sensors","authors":"Khursheed Ahmad ,&nbsp;Waseem Raza ,&nbsp;Tae Hwan Oh","doi":"10.1016/j.jece.2025.118157","DOIUrl":"10.1016/j.jece.2025.118157","url":null,"abstract":"<div><div>The presences of the toxic/poisonous gases and hazardous chemicals in the environment have been considered dangerous for human health, environment and aquatic life. The monitoring of such hazardous gases and chemicals are of great importance for medical diagnosis and pollution control. In the past few years, carbon based materials such as graphene oxide (GO), reduced graphene oxide (rGO), and graphene quantum dots (GQDs) and their hybrid composites are widely used for gas sensing applications. The graphene and its derivatives (GQDs, GO and rGO) have appeared as highly attractive solutions for the development of efficient sensors. These materials offer unique structural properties, exceptional sensing performance, and the ability to operate at room temperature, which significantly reduces power consumption. Their versatility and promising properties make them promising alternatives to traditional materials in gas sensing applications. Therefore, this review discusses the research progress explored in previous years on GQDs, GO and rGO for sensing of various gases and vapors such as ammonia, hydrogen sulfide, hydrogen, nitric oxide, acetone, acetaldehyde and ethanol etc. It also highlights the mechanisms underlying their sensing performance, advancements and potential applications of these materials in gas detection.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118157"},"PeriodicalIF":7.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon dots as an emerging antibacterial agent: Antibacterial mechanism and synthetic optimization","authors":"Beibei Wang ,&nbsp;Gang Zhou ,&nbsp;Qingshan Shi ,&nbsp;Weihua Fan ,&nbsp;Xiaobao Xie","doi":"10.1016/j.jece.2025.118127","DOIUrl":"10.1016/j.jece.2025.118127","url":null,"abstract":"<div><div>The risking prevalence in antibiotic resistance forces researchers to develop alternative antimicrobial agents. Carbon dots (CDs) have emerged as a type of promising candidates in antibacterial field due to their unique optical properties, excellent biological activity and low toxicity. Herein, we focus primarily on the recent advances in CDs-based antibacterial research. Firstly, the potential antibacterial mechanisms are discussed systematically, including bacterial cell structure damage, photodynamic therapy, photothermal therapy, and metabolic interference. Then, particular attention is given to the synthetic optimization of antibacterial CDs to enhance their antibacterial efficiency, such as the proposed method and precursors chosen, size control, heteroatom doping, surface functionalization of antibacterial CDs. In addition, diverse applications of these antibacterial CDs are discussed briefly. Finally, the current challenges and proposed future directions of antibacterial CDs are outlined, involving deep exploration of antibacterial mechanisms, identification of the antibacterial CDs’ structure, precise sterilization, and minimization of the gap between scientific research and clinical use. We hope this review will provide an opportunity for in-depth understanding of the antibacterial CDs, and help to attract more interested researchers to participate and jointly promote the future development of antimicrobial CDs.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118127"},"PeriodicalIF":7.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High entropic engineering for sustainable energy and environmental applications","authors":"Monika Singh ,&nbsp;Iram Malik ,&nbsp;Fawwaz Hazzazi ,&nbsp;Anuj Kumar","doi":"10.1016/j.jece.2025.118132","DOIUrl":"10.1016/j.jece.2025.118132","url":null,"abstract":"<div><div>High-entropy alloys (HEAs) came into existence as a revolutionary class of advanced materials distinguished by their exceptional catalytic performance, which results from unique thermodynamic stability, a wide range of elemental compositions, and highly tunable structural and electronic properties. The inherent high-entropy state of HEAs can be explained by four main effects: (i) high configurational entropy, which helps to stabilize a single-phase solid solution; (ii) sluggish atomic diffusion, which increases long-term structural stability; (iii) significant lattice distortion, which modifies the electronic environment and influences charge distribution; and (iv) the cocktail effect, which synergistically modifies the d-band center about the Fermi level, so optimizing catalytic activity. These distinct characteristics provide HEAs with many active sites and complex surface electronic structures, resulting in remarkably high efficiency, stability, and low cost. Although much research has already been done on the synthesis and practical application of HEA-based electrocatalysts, there is still a lack of thorough knowledge and a systematic approach to the rational design of these catalysts for energy and environmental technologies. This review commences by providing an in-depth understanding of the fundamental principles guiding the development of HEAs, in addition to the present state-of-the-art engineering approaches used for performance optimization and innovative synthetic approaches for their scale production. Then, an in-depth investigation of advanced characterization techniques offers significant critical insights into the structural and functional characteristics of these materials. Moreover, the study of the properties is driven by their multi-elemental composition and advanced applications of well-defined HEA nanostructures in the framework of environmental, energy, and storage technologies. Finally, this review concludes the prevailing challenges within the field and delineates prospective research directions to facilitate the transition of HEAs from fundamental studies to practical applications of energy and environmental technologies, thereby serving as a valuable resource for emerging and established researchers in this discipline.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118132"},"PeriodicalIF":7.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modulating surface properties of catalysts to promote the oxidation of multi-component VOCs","authors":"Min Zhang,&nbsp;Liangyu Liu,&nbsp;Ling Ding,&nbsp;Ningjie Fang,&nbsp;Yinghao Chu","doi":"10.1016/j.jece.2025.118118","DOIUrl":"10.1016/j.jece.2025.118118","url":null,"abstract":"<div><div>Volatile organic compounds (VOCs) are diverse and highly toxic, which poses a serious threat to the environment and human health. Catalytic oxidation is the most effective method for removing VOCs. Under actual industrial conditions, VOCs are usually emitted as a mixture of multiple components. Therefore, constructing catalysts with high catalytic activity and stability is the key to transitioning VOCs treatment from laboratory to industrial applications. Here, we systematically review the research progress on multi-component VOCs catalytic oxidation over the past 30 years and summarize the current difficulties faced. This paper primarily discusses the surface characteristics of catalysts, including the electronic properties of active centers, surface acidity and active oxygen species, which affect the reaction behaviors of multi-component VOCs. It is found that the removal of multi-component VOCs is closely related to the surface properties of the catalyst and VOCs components. Subsequently, strategies are proposed from the perspective of catalysts to promote efficient catalytic oxidation of multi-component VOCs, such as constructing multiple active sites and functional sites isolation, and designing hierarchical pore structures, to alleviate the competitive effects of multi-component VOCs, enhance anti-poisoning ability, and optimize mass transfer pathways. Finally, challenges and countermeasures were proposed from the exploration of the \"reaction sites-pathway\" mechanism, precise regulation of surface properties, and the introduction of machine learning to enhance catalyst development. This work provides important insights for understanding and developing multi-component VOCs catalytic oxidation catalysts.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118118"},"PeriodicalIF":7.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research progress on the extraction of strategic critical metals (rare earth elements, gallium, and germanium) and the high-value utilization of major element silicon from bulk mineral-metallurgical solid waste","authors":"Zhe Sun ,&nbsp;Junchi Wu ,&nbsp;Hong Cheng ,&nbsp;Gengmin Zhang ,&nbsp;Faxing Zhou ,&nbsp;Enlang Feng ,&nbsp;Zhennan Chen ,&nbsp;Yan Cao","doi":"10.1016/j.jece.2025.118119","DOIUrl":"10.1016/j.jece.2025.118119","url":null,"abstract":"<div><div>Strategic critical elements, including rare earth elements (REEs), gallium (Ga), and germanium (Ge), are essential raw materials in high-tech industries. The growing technological demand starkly contrasts the depletion of traditional mineral reserves and declining ore grades, exacerbating supply challenges. Mineral-metallurgical solid wastes like coal fly ash (CFA) and red mud, containing substantial amounts of these elements, present dual opportunities for resource recovery and environmental remediation. This paper reviews recent studies on the extraction and characterization techniques of REEs, Ga, and Ge from CFA and red mud, summarizing the progress of different extraction processes. Given the economic constraints of conventional approaches, this study investigates the co-recovery of REEs, Ga, Ge, and silicon from solid wastes. By developing synergistic extraction protocols for bulk metallurgical residues, this research seeks to advance high-value valorization while reconciling economic viability, strategic resource security, and environmental sustainability.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118119"},"PeriodicalIF":7.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144657221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent progress in nitrogen-doped activated carbon: Microstructural regulation and enhanced gas adsorption","authors":"Jinju Wang ,&nbsp;Fangli Lou ,&nbsp;Mingxian Zhang ,&nbsp;Jie Yuan","doi":"10.1016/j.jece.2025.118107","DOIUrl":"10.1016/j.jece.2025.118107","url":null,"abstract":"<div><div>N-doped activated carbon (NAC) adsorption research—especially for CO₂, SO₂, and some volatile organic gases (VOCs)—is a major focus in adsorption studies. This review covers recent NAC preparation methods, including novel approaches like microwave activation and Joule flash technique. The review also examines how activating and nitrogen doping agents affect activated carbon's pore development, surface chemistry, and underlying mechanisms. Crucially, it discusses how resultant structural and chemical alterations impact gas adsorption performance. Key factors—activating agents, temperature, and nitrogen dopants—govern pore development and surface modification: activating agents develop porous structures. Nitrogen doping agents facilitate surface chemical structure development. Temperature enhances the interaction between activating agents and the carbon precursor. Notably, precise control over the micropore volume proportion in the modified carbon significantly enhances its gas adsorption capacity under conditions of 1 bar pressure and low temperatures (e.g., 0 °C and 25 °C). In terms of surface chemistry, nitrogen-containing functional groups, specifically pyridinic nitrogen (N-6) and pyrrolic nitrogen (N-5), enhance the affinity of the modified carbon towards acidic gas molecules like CO₂、 SO₂ and some volatile organic gases. This enhanced affinity improves the material's selectivity for adsorbing these acidic gases.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118107"},"PeriodicalIF":7.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecofriendly recycling of critical metal from secondary resources via molten salt electrolysis","authors":"Zunyan Yang ,&nbsp;Zepeng Lv ,&nbsp;Shaolong Li ,&nbsp;Jilin He ,&nbsp;Jianxun Song","doi":"10.1016/j.jece.2025.118089","DOIUrl":"10.1016/j.jece.2025.118089","url":null,"abstract":"<div><div>With rapid industrial advancements, the demand for efficient metal recycling has surged alongside increasing metal waste production. To meet environmental regulations and the high-purity requirements of advanced technologies, a green, cost-effective recycling strategy is essential. Molten salt electrolysis (MSE) offers a sustainable alternative to conventional methods, using electrons as reductants in a clean, high-efficiency process. The tunability of molten salts enables high diffusion and reaction rates, making them ideal for chemical reactions. Advancing MSE is crucial for recovering high-purity metals from secondary resources. This review summarizes MSE applications in recycling alloy scraps, spent batteries, metallurgical solid waste, spent nuclear fuel, and irradiated targets. It explores different electrolysis approaches, analyzes current limitations, and discusses optimization strategies for future development, aiming to enhance its industrial viability.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118089"},"PeriodicalIF":7.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Technology advances and techno-economic analysis of the carbon materials derived from biowaste utilization","authors":"Mengmeng Zhang ,&nbsp;Yi Ding ,&nbsp;Xigang Wang ,&nbsp;Xingang Bai ,&nbsp;Xiao Guo ,&nbsp;Dapeng Wu","doi":"10.1016/j.jece.2025.118082","DOIUrl":"10.1016/j.jece.2025.118082","url":null,"abstract":"<div><div>Due to the low cost, abundant resources and multiple functions, the biowaste derived carbon materials have aroused great research attention in the fields of waste management, energy utilization, and environmental remediation. The carbon materials derived from biowaste utilization (C-BW) could serve as highly efficient absorbents to clean the toxic heavy metal ions and persistent organic compounds from different environmental media. Previous research confirmed that the biowaste feedstock and the pyrolysis method were the determining factors that influenced the C-BW performances. In addition, considering the pyrolysis process was an energy consuming and labor intensive process, the economic feasibility of the C-BW producing strategies could determine the final commercialization of a particular C-BW production project. Therefore, the current review focused on summarizing the recent advances on the C-BW production in terms of the types of biowaste feedstock, pyrolysis technique advances, as well as the techno-economic analysis on these utilization strategies. Moreover, a general framework for the techno-economic analysis of C-BW was proposed, which provides a plausible model for the future economic feasibility studies. The future perspective of C-BW is also discussed, which could shed light on the technological development of the C-BW production industry.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 118082"},"PeriodicalIF":7.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}