Mengchao Luo , Runlong Hao , Zhiguo Xu , Ziyi Qin , Zhen Qian , Bo Yuan
{"title":"Advances in perovskite oxide catalysts for gaseous pollutant abatement: Design strategies, practical applications, and reaction mechanisms","authors":"Mengchao Luo , Runlong Hao , Zhiguo Xu , Ziyi Qin , Zhen Qian , Bo Yuan","doi":"10.1016/j.jece.2025.119599","DOIUrl":"10.1016/j.jece.2025.119599","url":null,"abstract":"<div><div>Perovskite oxides are a class of mixed metal oxides with a unique crystal structure and are widely employed for the removal of multiple gaseous pollutants. Owing to their structural versatility, nearly 90 % of the metal elements in the periodic table can be accommodated within the perovskite lattice. In this paper, the design strategy, application scenarios, and reaction mechanism of common perovskite oxides are systematically summarized, which can provide directions for optimizing the catalytic activity and removal performances, as well as for revealing the underlying mechanisms. To be specific, this review is organized into three main sections: (1) common design strategies for perovskite oxides, including morphology and structure construction, urea modulation, A-site nonstoichiometry, A-site substitution, B-site substitution, selective dissolution, interface and interaction; (2) applications of perovskite oxides in the abatement of gaseous pollutants, including CO, NO, VOCs and Hg<sup>0</sup>; (3) an overview of three catalytic oxidation mechanisms frequently observed in perovskite systems, namely the L-H, E-R, and MvK models. Finally, key findings and several research prospects are provided, with the aim of expanding the practical applications of perovskite oxides in flue gas purification.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119599"},"PeriodicalIF":7.2,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221903","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}
Mmapule M. Phasha , Kabelo E. Ramohlola , Reineck Mhlaba , Kwena D. Modibane
{"title":"Metal-organic frameworks for advancing photocatalytic and electrocatalytic hydrogen evolution","authors":"Mmapule M. Phasha , Kabelo E. Ramohlola , Reineck Mhlaba , Kwena D. Modibane","doi":"10.1016/j.jece.2025.119594","DOIUrl":"10.1016/j.jece.2025.119594","url":null,"abstract":"<div><div>This review offers comprehensive overview of the application of metal-organic frameworks (MOFs) in photocatalytic and electrocatalytic hydrogen evolution reactions (HER), essential for clean and sustainable hydrogen production. It explores the distinctive structural characteristics of MOFs, including their high surface area, tunable pore environments, and versatile metal centers, which enable efficient hydrogen generation. It also introduces catenation as a modification strategy, with studies showing that catenated MOF exhibit exceptional porosity, with structures that can reach up to 65 % porosity. The review explores into current developments in MOF-based photocatalysts and electrocatalysts, addressing strategies to enhance their stability, catalytic performance, and electronic properties. Challenges such as scalability, long-term stability, and reaction efficiency are discussed, along with future perspectives for optimizing MOF-based systems for real-world energy applications.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119594"},"PeriodicalIF":7.2,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221907","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}
Peng Chen , Dongbin Wang , Ningtong Yi , Jingkun Jiang , Laura Herraiz , Xian Zhou , Jian Chen , Yongqiang Ren , Shisen Xu , Susana Garcia , Xinghua Li
{"title":"Amine-based carbon capture through an environmental lens: Amine emissions and associated implications","authors":"Peng Chen , Dongbin Wang , Ningtong Yi , Jingkun Jiang , Laura Herraiz , Xian Zhou , Jian Chen , Yongqiang Ren , Shisen Xu , Susana Garcia , Xinghua Li","doi":"10.1016/j.jece.2025.119605","DOIUrl":"10.1016/j.jece.2025.119605","url":null,"abstract":"<div><div>Amine-based chemical absorption stands as one of the most established and widely employed technologies for carbon capture applications from point sources. However, emissions of amine solvents and their degradation products into the environment may pose potential adverse effects on both the environment and human health. In this review, we examine literature findings pertaining to sampling and analysis methods, emission levels, environmental impact, and health hazards associated with amines and their degradation products. Various online and offline methods were used to measure these compounds, acknowledging the potential for varied results and underscoring the necessity of establishing guidelines or standard operating procedures for measurement methods. The amine and their degradation products emission levels measured at the stack fluctuate significantly due to differing emission mitigation measures, flue gas conditions, and operational parameters. Mitigation strategies such as water wash (reducing more than half of amine emissions), acid wash (>90 %, particularly effective for removing ammonia), and Brownian Demister Units (>97 %) have been shown to substantially reduce emissions. Several studies have demonstrated the potential aquatic and inhalation toxicity of amines and their degradation products. Occupational health concerns may arise if exposure concentrations exceed several milligrams per cubic meter. Despite advancements, analytical challenges persist in investigating amine emissions, necessitating future studies aimed at establishing standard analytical methods, and improving emission prediction models to guide environmental agencies in setting emission limit values, encompassing both amines and their degradation products.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119605"},"PeriodicalIF":7.2,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221902","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}
Xiaohong Shang , Jinguo Hu , Yaping Yan , Siyu Li , Jiameng Diao , Haoyu Wang , Bin Hu , Hao Wang
{"title":"Deep insights into LDH reconstruction for enhanced capacitive deionization","authors":"Xiaohong Shang , Jinguo Hu , Yaping Yan , Siyu Li , Jiameng Diao , Haoyu Wang , Bin Hu , Hao Wang","doi":"10.1016/j.jece.2025.119593","DOIUrl":"10.1016/j.jece.2025.119593","url":null,"abstract":"<div><div>To ensure the availability of safe and sustainable freshwater resources, capacitive deionization (CDI) has emerged as a promising technology for the treatment of seawater and wastewater. The choice of electrode materials plays a critical role in CDI, as it directly influences the adsorption performance. However, traditional carbon materials are limited by their low adsorption capacity and poor cycling stability, which hinder their practical application in CDI. To overcome these limitations, layered double hydroxides (LDHs) have garnered significant attention due to their larger interlayer spacing and strong ion storage capability, making them highly promising for real-world CDI applications. Despite their advantages, few reviews have comprehensively addressed the adsorption performance and potential challenges of LDHs produced through various design strategies in the CDI field, thus impeding the cross-referencing and further development of these strategies. This paper presents a thorough review of the adsorption performance and design strategies for LDHs, with an emphasis on interface, surface, and structural engineering to enhance CDI efficiency, and compares the advantages of different design approaches. Additionally, it highlights several key challenges in improving the adsorption performance of LDHs and proposes corresponding solutions. The insights provided in this review aim to guide the development of high-performance LDHs-based electrodes, paving the way for more efficient and durable CDI technologies.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119593"},"PeriodicalIF":7.2,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221886","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}
Yan Ma , Mairemu Maihaiti , Miregul Mamat , Shizhan Feng
{"title":"Oil-water separation via superhydrophilic materials: Fundamentals and perspectives for 2D/3D system design","authors":"Yan Ma , Mairemu Maihaiti , Miregul Mamat , Shizhan Feng","doi":"10.1016/j.jece.2025.119564","DOIUrl":"10.1016/j.jece.2025.119564","url":null,"abstract":"<div><div>For oily wastewater treatment challenges, traditional technologies such as gravity separation and adsorption methods suffer from low efficiency, high energy consumption, or secondary pollution. Superhydrophilic/underwater superoleophobic materials provide a new approach for efficient and environmentally friendly separation by virtue of their high affinity for water and strong repulsion for oil. These materials are mainly divided into two-dimensional (2D) filtration types and three-dimensional (3D) adsorption types: two-dimensional materials achieve oil-water sieving through micro-nano rough structures and hydrophilic modification but are prone to clogging; three-dimensional materials rely on porous structures to selectively absorb oil yet face limitations in adsorption capacity and recyclability. Both encounter challenges in adapting to high-salt, acidic, or surfactant-containing wastewater. This paper systematically reviews research progress on both material types, analyzes their technical bottlenecks, and emphasizes the future need to focus on precise material structure regulation, anti-fouling mechanism optimization, and scaled-up preparation processes. These advancements will promote functional design, enhance environmental adaptability, and enable intelligent development, laying a theoretical foundation for technological innovation in oily wastewater treatment.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119564"},"PeriodicalIF":7.2,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221906","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}
S. Shimly , N. Rasana , S. Rajendrakumar , K. Nithya
{"title":"Toward cleaner waters: Advances in micro and nano plastics mitigation and insights in aquatic MNPs profiling and management","authors":"S. Shimly , N. Rasana , S. Rajendrakumar , K. Nithya","doi":"10.1016/j.jece.2025.119535","DOIUrl":"10.1016/j.jece.2025.119535","url":null,"abstract":"<div><div>Microplastics (MPs, 1 µm–5 mm) and nanoplastics (NPs, <1 µm) are increasingly detected in aquatic environments due to widespread plastic use and poor waste management. They pose a serious environmental threat, especially in aquatic environments, because of its persistence, ubiquity and ability to bioaccumulate. Micro-nanoplastics (MNPs) raise significant environmental and health concerns. Their small size, complex behavior and the interactions with other pollutants make their removal a global challenge. The present study evaluates the effectiveness of different removal and treatment methods spanning physical, chemical and biological methods. The study follows PRISMA methodology by systematically reviewing the existing literature and exploring key topics. Reported removal efficiencies vary widely across methods, with membrane filtration and coagulation–flocculation techniques achieving up to 98–99.99 % efficiency in certain laboratory studies. Advanced oxidation processes (AOPs) have demonstrated removal rates between 50 % and 95 %, depending on operational parameters and MNP characteristics. Biological treatments, such as microbial and enzymatic degradation, show promise at the experimental scale, although their real-world application remains limited. In addition to removal technologies, the review highlights key challenges in MNP identification, quantification, and management. The findings emphasize that a combination of complementary approaches is more effective than single-method strategies. Future research should focus on bridging the gap between laboratory findings and field applicability, promoting sustainable technologies, and developing scalable, eco-friendly solutions to mitigate MNP pollution in aquatic environments.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119535"},"PeriodicalIF":7.2,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221901","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":"MXene-based composites for environmental applications: Recent advances","authors":"Navid Rabiee","doi":"10.1016/j.jece.2025.119521","DOIUrl":"10.1016/j.jece.2025.119521","url":null,"abstract":"<div><div>MXene-based composites have emerged as revolutionary materials for environmental applications, offering unprecedented capabilities in water treatment, air purification, and resource recovery. This review presents a comprehensive assessment of recent advances, spanning sustainable synthesis innovations to advanced composite design strategies. The unique combination of metallic conductivity, hydrophilic surface chemistry, and tunable interlayer spacing positions MXenes as highly versatile platforms for tackling critical environmental challenges. Significant progress has been demonstrated in heavy metal removal, with adsorption capacities exceeding 1000 mg/g, and in organic pollutant degradation via photocatalytic and Fenton-like pathways. Emerging synthesis approaches, including fluoride-free etching and electrochemical methods, have improved both scalability and material performance. MXene-based membranes are highlighted for their superior ion selectivity and dye rejection, while integration with metal–organic frameworks, layered double hydroxides, and polymer matrices has generated multifunctional composites with enhanced stability, selectivity, and durability. Photocatalytic applications further demonstrate outstanding hydrogen evolution and CO<sub>2</sub> reduction efficiencies, while MXene-based sensors achieve detection limits ranging from ppb to ppq levels for high-priority contaminants. The novelty of this review lies in its multi-dimensional performance analysis and integrative perspective, which unify experimental findings, theoretical models, and application prospects into a predictive framework. This approach reveals structure–property–function relationships, cross-cutting design principles, and optimization strategies across diverse environmental technologies, offering actionable insights for tailored composite development. By combining critical evaluation with forward-looking strategies, this review not only highlights the transformative potential of MXenes but also defines clear research pathways toward scalable and sustainable environmental technologies.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119521"},"PeriodicalIF":7.2,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156395","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}
Suqian Gu , Jiantao Li , Yifan Chai , Peijun Liu , Ruijun Yan , Zhiqiang Xu
{"title":"Progress and challenges in recycling coal gasification wastewater using coal water slurry","authors":"Suqian Gu , Jiantao Li , Yifan Chai , Peijun Liu , Ruijun Yan , Zhiqiang Xu","doi":"10.1016/j.jece.2025.119481","DOIUrl":"10.1016/j.jece.2025.119481","url":null,"abstract":"<div><div>This review comprehensively summarizes recent advances in utilizing coal gasification wastewater (CGW) for resource recovery and non-hazardous treatment via coal water slurry (CWS) technology. CGW is characterized by persistent organic pollutants and toxic components, with its environmental risks amplified by the presence of diverse harmful elements and trace heavy metals. On the other hand, CGW is rich in organic substances and possesses high calorific value indicate its significant potential for resource utilization. Given the dual concerns of energy needs and ecological impact, the key aim of CGW treatment is pollutant reduction and wastewater reuse toward achieving zero discharge. Among the various treatment technologies for CGW, the integrated approach combining CWS with gasification is considered the most effective method for achieving both objectives. Initially, this review paper analyzes the sources, composition, and characteristics of CGW. Then the co-slurry mechanism of coal wastewater slurry (CWWS) involving CGW, dispersants, and coal powder, along with the challenges in the formation process, and the application of advanced characterization tools and methods are discussed Subsequently, the gasification principles, carbon conversion efficiency, product characteristics, and pollutant migration and release behaviors of CWWS are systematically reviewed. Finally, the review concludes with a discussion of the current limitations of CWWS gasification for both academic research and industrial application, followed by future perspectives.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119481"},"PeriodicalIF":7.2,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156393","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}
Khubab Shaker , Madeha Jabbar , Habib Awais , Adeel Abbas , Abu Hassan Nordin , R.A. Ilyas , Pui San Khoo , Lisman Suryanegara
{"title":"Synthesis, properties, and environmental applications of magnetic nanocellulose composites","authors":"Khubab Shaker , Madeha Jabbar , Habib Awais , Adeel Abbas , Abu Hassan Nordin , R.A. Ilyas , Pui San Khoo , Lisman Suryanegara","doi":"10.1016/j.jece.2025.119494","DOIUrl":"10.1016/j.jece.2025.119494","url":null,"abstract":"<div><div>Magnetic nanocellulose composites (MNCCs) are a novel class of materials that combine the sustainable and versatile properties of nanocellulose with the dynamic functionality of magnetic nanoparticles. This review provides a comprehensive analysis of the synthesis strategies, structural modifications, functional properties, and diverse applications of MNCCs, particularly in environmental remediation, water treatment, and biomedical fields. Emphasis is placed on various fabrication techniques, including in-situ co-precipitation and green synthesis, along with post-synthesis surface functionalization approaches to enhance dispersion, stability, and selectivity. The recyclability and regeneration of MNCCs—a critical yet underexplored aspect—is addressed, highlighting their reusability through magnetic separation and chemical desorption methods. Furthermore, the challenges facing MNCCs including toxicity concerns, environmental risks, and the lack of standardized testing methods are also reviewed, with special emphasis to their environmental fate, bioaccumulation, and long-term stability of MNCCs, which remain quite underexplored. The integration of MNCCs in real-time monitoring systems, hybrid multifunctional composites, and smart materials capable of stimuli-responsive behavior and self-healing are the perspectives for wider adoption of these materials. Aligning the MNCC material design with industrial feasibility and lifecycle assessment, can help in transition from laboratory-scale innovation to impactful technologies.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119494"},"PeriodicalIF":7.2,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221887","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}
Yingying Wang , Li Dong , Minqin Zhang , Yini Song , Guiyun Yu , Yujing Zheng , Yong Dai , Huaihao Zhang , Yue Lian
{"title":"Structural design and machine learning of non-membrane solar evaporators: A review","authors":"Yingying Wang , Li Dong , Minqin Zhang , Yini Song , Guiyun Yu , Yujing Zheng , Yong Dai , Huaihao Zhang , Yue Lian","doi":"10.1016/j.jece.2025.119474","DOIUrl":"10.1016/j.jece.2025.119474","url":null,"abstract":"<div><div>Desalination using solar evaporators is a viable solution to alleviate freshwater resource shortages. Among these, non-membrane evaporators, which integrate complex nanostructures with macrostructures to achieve multifunctional evaporation benefits, have become a research hotspot. Specifically, non-membrane evaporators can be optimally designed from perspectives such as enhanced light absorption or solute recovery at the macrostructure level to improve their practical evaporation performance. Meanwhile, non-membrane solar evaporators can develop highly efficient internal water transport channels. These channels not only improve water delivery efficiency and minimize heat loss but also help suppress salt crystallization, thereby ensuring strong salt tolerance and high heat transfer efficiency. In comparison, non-membrane evaporators constitute a complex system formed by the coupling of multiple structures, requiring sophisticated material selection and precise optimization of structural parameters. Therefore, leveraging the predictive capabilities of machine learning algorithms can greatly facilitate the development and design of solar evaporators. This work reviews recent advances in and contributions of machine learning to material screening, structural design, and system integration in solar evaporators. The insights gained are expected to support deep integration and wide adoption of machine learning in the design and performance prediction of non-membrane solar evaporators.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119474"},"PeriodicalIF":7.2,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145156389","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}