Journal of hazardous materials advances最新文献

{"title":"Discovering global research trends and scientific progress in biofiltration of air: a scientometric analysis and outlook","authors":"Divya Baskaran ,&nbsp;Shanmugam Rajeswari ,&nbsp;Hun-Soo Byun","doi":"10.1016/j.hazadv.2025.100653","DOIUrl":"10.1016/j.hazadv.2025.100653","url":null,"abstract":"<div><div>Industries are seriously facing the challenge of air pollution, which can be detrimental to the environment and living beings. Therefore, it is crucial to control this pollution with an eco-friendly approach such as biofiltration. The purpose of the manuscript is to conduct a statistical analysis to analyze the “biofiltration of air” theme and to explore the current state of research development and advancement during 1991–2023. Using relevant keywords, 1475 bibliographic records were identified from the Web of Science database. Based on the findings, research progress was mapped to determine the scientific status, prolific author, and county collaboration, with current scientific and technological developments and knowledge gaps. The USA and China are the world leaders in the use of biofilters for polluted air treatment. The findings of this review identified that the research on biofiltration of air has increased significantly over 33 years. The research trends and potential advancement in biofiltration systems, catalytic oxidation processes, bioaugmentation strategy, and integration technology were addressed. Further, the recent progress of biofiltration modeling using theoretical modeling and ANN was highlighted. Further, the significance of biofilters and their specific progress on biological aspects, biofilter design and operation, pollutant-specific research, and new materials and technologies were emphasized. This is the first study to provide an in-depth discussion and understanding of scientific progress via scientometric review to realize the panorama of global research of polluted air research. The results of this bibliometric review can be constructive inputs to researchers and practitioners of air biofiltration.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100653"},"PeriodicalIF":5.4,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465246","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}

{"title":"Radioactivity and exposure to radiation in lithium mining in Western Australia","authors":"David Gbondo ,&nbsp;Minh Pham ,&nbsp;Yun Zhao ,&nbsp;Nick Tsurikov ,&nbsp;Krassi Rumchev","doi":"10.1016/j.hazadv.2025.100652","DOIUrl":"10.1016/j.hazadv.2025.100652","url":null,"abstract":"<div><h3>Background</h3><div>Lithium is a crucial commodity; however, the mining and processing of lithium is associated with exposure to Naturally Occurring Radioactive Material (NORM) from the uranium-238 and thorium-232 decay chains. The sources and pathways of exposure include the inhalation of dust containing alpha-emitting radioactive elements, radon, thoron and their decay products, the ingestion of drinking water containing alpha and beta emitting radioactive elements, and exposure to gamma.</div></div><div><h3>Methods</h3><div>This study used industry radiation emission and occupational exposure to NORM data from three surface lithium mines in Western Australia (WA) for the period between 2018 and 2024. Samples were collected from the lithium ore, spodumene concentrate, tantalum concentrate, wet tailings and dry tailings to determine radioactivity. Exposure to radiation was compared between the departments including Administration and Support Services, Mining, Crushing &amp; Processing, and Maintenance.</div></div><div><h3>Results</h3><div>The study found a high mean radiation emission in the tantalum concentrate of 2.169 Bq/g. The radiation exposures for all the departments ranged from 0.262 mSv per year to 0.544 mSv year, which were significantly below the occupational dose limit of 20 mSv per year. The study found that the reverse osmosis plants significantly reduced the radiation levels in the bore water after treatment.</div></div><div><h3>Conclusion</h3><div>The study demonstrated low levels of radiation exposure with the treatment of bore water using reverse osmosis plants. Based on the study results, proactive control measures to protect workers from exposure to tantalum concentrate and the treatment of bore water should be considered.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100652"},"PeriodicalIF":5.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452933","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}

{"title":"Preparation of recyclable g-C3N4/TiO2 heterojunction/alginate hydrogel microbeads and investigation of their adsorption-photocatalytic properties","authors":"Yinqi Yang ,&nbsp;Guoshuai Ma ,&nbsp;Zhijian An ,&nbsp;Wei Wang ,&nbsp;Xiaoli Hu ,&nbsp;Yao Wang ,&nbsp;Zhonglin Du ,&nbsp;Xuezhong Gong ,&nbsp;Haoyu Tan ,&nbsp;Fengxiang Guo ,&nbsp;Jianguo Tang","doi":"10.1016/j.hazadv.2025.100650","DOIUrl":"10.1016/j.hazadv.2025.100650","url":null,"abstract":"<div><div>To address the challenges associated with the recovery difficulties and potential secondary pollution of powdered photocatalysts, this study synthesized a Z-scheme heterojunction g-C₃N₄/TiO₂ (denoted as GT) with a core-shell structure via a hydrothermal method. Subsequently, an efficient and recyclable hydrogel bead was fabricated using sodium alginate and GT as raw materials. The results demonstrated that the hydrogel bead exhibited a remarkable adsorption capacity of 48.79 mg/g for Rhodamine B (RhB) when the GT loading was 0.6 g, significantly surpassing the 26.17 mg/g capacity of GT alone, while also displaying exceptional photocatalytic degradation efficiency. Adsorption kinetic analysis revealed that the adsorption process conformed to the pseudo-second-order kinetic model (R² = 0.976), and isotherm fitting to the Langmuir model indicated monolayer adsorption. Furthermore, the adsorption of RhB by the hydrogel bead was identified as an endothermic process. Under visible light irradiation, the GT(0.6)/CA hydrogel bead achieved a photocatalytic degradation rate of 85.4 % within 100 min for a 100 mL RhB solution with an initial concentration of 40 mg/L, with a degradation rate constant of 0.0205 min⁻¹. The hydrogel bead exhibited outstanding catalytic performance under varying GT loadings, pH conditions, light sources, and synergistic effects, and maintained over 80 % degradation efficiency after five consecutive cycles, demonstrating excellent stability and recyclability. Quenching experiments and electron spin resonance (ESR) analysis further elucidated that the primary active species involved in the degradation process were h⁺ and •O₂⁻. This study provides a novel direction for the development of reusable green photocatalysts.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100650"},"PeriodicalIF":5.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452929","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}

{"title":"Supercritical water gasification for hospital wastewater","authors":"Rich Jhon Paul Latiza ,&nbsp;Rugi Vicente Rubi ,&nbsp;Armando Quitain","doi":"10.1016/j.hazadv.2025.100651","DOIUrl":"10.1016/j.hazadv.2025.100651","url":null,"abstract":"<div><div>Hospital wastewater, laden with pharmaceuticals, pathogens, and hazardous substances, poses a significant challenge to conventional treatment methods. Supercritical water gasification (SCWG) emerges as a promising alternative, offering complete sterilization and near-complete degradation of organic pollutants in a single, energy-efficient step, with the added benefit of generating valuable syngas. This compact technology harnesses the unique properties of water above its critical point, enabling rapid oxidation of contaminants and transforming them into syngas and benign products like carbon dioxide and water. Its minimal footprint and streamlined process make SCWG particularly well-suited for on-site integration in hospitals, potentially reducing logistical complexities and environmental impact. This comprehensive review explores the potential of SCWG for hospital wastewater management, examining its feasibility, advantages, limitations, and economic viability. Ultimately, this technology paves the way towards a future where healthcare facilities can achieve both ecological responsibility and unparalleled sanitation, safeguarding both public health and our planet.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100651"},"PeriodicalIF":5.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444149","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}

{"title":"Biofilm formation on the polyethylene terephthalate plastic surface weathered under laboratory and real landfill conditions","authors":"Laura Žorža ,&nbsp;Andreia S. Azevedo ,&nbsp;Dita Gudrā ,&nbsp;Igor Resende ,&nbsp;Edmunds Skinderskis ,&nbsp;Ance Roga ,&nbsp;Dāvids Fridmanis ,&nbsp;Ineta Kalniņa ,&nbsp;Kārlis Vonda ,&nbsp;Nuno Filipe Azevedo ,&nbsp;Olga Muter","doi":"10.1016/j.hazadv.2025.100649","DOIUrl":"10.1016/j.hazadv.2025.100649","url":null,"abstract":"<div><div>Plastic undergoes rapid colonisation in the environment, resulting in the formation of a biofilm necessary for further biodegradation. This study investigates the enrichment opportunities of biofilms formed on polyethylene terephthalate (PET) plastic surfaces incubated in landfill leachate for three months (PL-3), followed by three-month incubation in complex media (PLE1–6 and PLE2–6). The metagenomic analysis of biofilms revealed distinct differences in the microbial community structure. Incubation in leachate (PL-3) resulted in Nitrosomonas prevailing (31.66 %), while biofilms enriched in PLE1–6 and PLE2–6 contained <em>Pseudomonas</em> spp. at 41.89 % and 33.22 %, respectively. Fluorescence in situ hybridisation (FISH) microscopy analysis, using a probe design specific for <em>Pseudomonas</em> spp., was in line with metagenomic data and explored the distribution of this genus in the biofilms. PET bottles weathered under real landfill conditions also contained <em>Pseudomonas</em> spp., but to a lesser extent (10.67 % – 14.52 %) compared to laboratory enrichment. Two weathered PET specimens, sampled at different landfill sites, differed markedly in an abundance of Archaea. The overall enzymatic activity of the biofilm was measured by the fluorescein diacetate hydrolysis assay. By elucidating the impacts of nutrient additives on biofilm formation on PET plastic surfaces, one can gain a deeper comprehension of the mechanisms underlying biofilm development on plastic surfaces. That, in turn, is closely related to plastic biodegradation processes in landfill environments.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100649"},"PeriodicalIF":5.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444641","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}

{"title":"Green extraction of biomass from waste goat bones for applications in catalysis, wastewater treatment, and water disinfection","authors":"Ahmed Hamad Alanazi ,&nbsp;Wael AA Arafa ,&nbsp;Shaima MN Moustafa ,&nbsp;Ibrahim Hotan Alsohaimi ,&nbsp;Tarek Ahmed Seaf Elnasr ,&nbsp;Riyadh F. Halawani ,&nbsp;Amnah Salem Al Zbedy ,&nbsp;Amr Mohammad Nassar","doi":"10.1016/j.hazadv.2025.100645","DOIUrl":"10.1016/j.hazadv.2025.100645","url":null,"abstract":"<div><div>The goal of this work is to recycle waste goat bones in an environmentally acceptable way and then recover them for vital applications as an adsorbent of hazardous pollutants from water, an antimicrobial agent, and a catalyst. Recycled goat bone crystals (RGB) were characterized via thermal gravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscope (SEM), transmittance electron microscope (TEM), and Fourier transform infrared spectroscopy (FTIR). TGA data revealed that the goat bones sample consists of approximately 29.30 % organic residue and 70.70 % hydroxyapatite. The crystalline size was 3.65 nm and the particle size was 5–10 nm as resulted from XRD analysis and TEM images, respectively. The FT-IR spectrum showed the presence of functional groups of hydroxyapatite and organic molecules. RGB is used as a heterogenous catalyst in multicomponent reactions for synthesizing several tetrahydrobenzo [<em>b</em>]pyrans by employing a one-pot, three-component reaction comprising aromatic aldehydes, cyclohexane-1,3‑dione, and malononitrile in water at room temperature with an excellent yield ≈ 90–98 %. Compared to earlier studies on the synthesis of 4<em>H</em>-pyrans, our technique offers a number of benefits, such as increased yields, eco-friendly conditions quicker reactions, and recyclable. The antimicrobial capacity of RGB has been evaluated and compared with that of organic residue and hydroxyapatite extracted from RGB using colony counting technique. The petri dish containing hydroxyapatite showed minimal growth of microbes with inhibitions of 82.1 % and 98.7 % for both bacteria and fungi growth, respectively. Additionally, RGB has been studied as an adsorbent for wastewater purification and showed high removal efficiency of crystal violet dye ≈ 99.15 % after 30 min under the optimum conditions. As a result of this work, the RGB can be used on a large scale as a cheap and a promising commercial catalyst, biosorbent, and antimicrobial agent.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100645"},"PeriodicalIF":5.4,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436629","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}

{"title":"A new coupled non-thermal plasma and sorption method for treatment of liquid radioactive wastes: Design and on-site application to Chornobyl NPP-derived wastes","authors":"Yuriy Zabulonov ,&nbsp;Sergey Shpilka ,&nbsp;Danylo Tutskyi ,&nbsp;Sergey Mikhalovsky ,&nbsp;Matthew Illsley ,&nbsp;Alistair Shokat ,&nbsp;Andrew B. Cundy","doi":"10.1016/j.hazadv.2025.100646","DOIUrl":"10.1016/j.hazadv.2025.100646","url":null,"abstract":"<div><div>Higher activity liquid wastes pose a significant management challenge at nuclear sites, and there is a strong drive to develop cost-effective (and more sustainable) waste treatment solutions that can remove radioactive and other contaminants from these liquid radioactive wastes (LRW) prior to their discharge or final storage/disposal. Here, results are presented from an on-site trial of a coupled non-thermal plasma / sorption-based LRW treatment system at the “Dibrova” Object in the Chornobyl Exclusion Zone. Over 2m³ of Cs-137 and Sr-90 contaminated LRW from settling tanks used for the holding of tailings and drain water from Chornobyl Building № 5 and deactivation solutions (used in the liquidation efforts following the 1986 Chornobyl disaster) were treated. The coupled treatment process removed greater than 90 % of Cs-137 and Sr-90 from the most contaminated liquids (containing 75 Bq/kg (Cs-137) and 195 Bq/kg (Sr-90)), generating a low mass (&lt;100<em>g</em> ) iron-rich solid residue suitable for onward storage/disposal. Treatment efficiencies for other waste components (e.g. nitrites, phosphates and COD) were equivalent to or exceeded those previously reported for treatment of environmental liquid wastes by similar Advanced Oxidation Processes. The power requirements of the system (due to the pulsed nature of the plasma generated) were relatively low, at 10 kWh, for a LRW treatment rate of 15 - 20 L/h. The system can be operated remotely in autonomous mode, and its modular, easily transportable nature means that the process can be readily adapted for various on-site treatment scenarios.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100646"},"PeriodicalIF":5.4,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465245","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}

{"title":"Metagenomic insights into correlation of microbiota and antibiotic resistance genes in the worker-pig-soil interface: A One Health surveillance on Chongming Island, China","authors":"Jing Qian ,&nbsp;Zheyuan Wu ,&nbsp;Lingchao Ma ,&nbsp;Yongzhang Zhu ,&nbsp;Yan Zhang ,&nbsp;Min Li ,&nbsp;Xiaokui Guo ,&nbsp;Chang Liu","doi":"10.1016/j.hazadv.2025.100648","DOIUrl":"10.1016/j.hazadv.2025.100648","url":null,"abstract":"<div><div>Surveillance of antimicrobial resistance (AMR) is necessary and urgent. This study emphasizes the critical role of One Health surveillance in monitoring AMR, integrating metagenomics to assess microbiota and antibiotic resistance genes (ARGs) across human, pig, and soil ecosystems in swine farms. The human and pig gut microbiota are predominantly composed of the phyla <em>Firmicutes, Bacteroidota, Proteobacteria</em>, and <em>Actinobacteria</em>, whereas the soil microbiota exhibits a distinct profile, with <em>Proteobacteria, Acidobacteria, Actinobacteria</em>, and <em>Planctomycetes</em> being the most prevalent. A diverse array of ARGs is identified, including multidrug resistance, with Acidobacteria and Proteobacteria as potential ARG hosts. The study reveals shared ARGs and mobile genetic elements (MGEs) among human, pig, and soil, indicating microbial interdependence and potential for horizontal gene transfer. A positive correlation between biocide and metal resistance genes (BMRGs) and MGEs suggests the role of disinfectants and metals in ARG selection and dissemination. Network analysis of BMRGs, MGEs, and ARGs finds positive associations between copper resistance genes (<em>corR</em>), zinc and lead resistance genes (<em>zraR/hydH, zraS/hydG</em>), and ARGs such as <em>macB, tetA(58), mlaF</em>, and <em>mtrA</em>. This correlation is also evident with insertion sequences like ISAcba1 and ISArsp9. The findings reveal the potential for horizontal gene transfer and the influence of disinfectants and metals on ARG selection and dissemination, advancing the application of metagenomic monitoring within the One Health framework. This research underscores the need for integrated strategies to mitigate antibiotic resistance and informs sustainable agricultural practices.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100648"},"PeriodicalIF":5.4,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436631","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}

{"title":"Unveiling the hidden threat: A multi-faceted assessment of heavy metal contamination in indoor dust along with ecological risk and human health implications","authors":"Md. Rashedul Haque ,&nbsp;Wahida Ahmed ,&nbsp;Ashraful Haque ,&nbsp;Md Rayhanul Islam Rayhan ,&nbsp;Mohammad Moniruzzaman ,&nbsp;Mohammad Ahedul Akbor ,&nbsp;Mashura Shammi ,&nbsp;Md. Mostafizur Rahman","doi":"10.1016/j.hazadv.2025.100644","DOIUrl":"10.1016/j.hazadv.2025.100644","url":null,"abstract":"<div><div>Indoor environment is considered to be a sanctuary from external pollutants. But nowadays, this idea has been changed. Heavy metals (HMs) contamination in indoor dust poses a significant threat to ecological and human health. This study had been conducted in four types of indoor environments: residential, institutional, industrial, and commercial. Dust sample was collected from the AC filter. Inductively Coupled Plasma Mass Spectrometry (ICP-MS) was used to analyze those samples and identified 11 types of HMs (As, Cd, Co, Cu, Cr, Fe, Hg, Mn, Ni, Pb, Se, and Zn) in AC dust. Among the HMs, Fe (717.41 ± 19.04 mg/kg) was the most abundant, and Cd (2.53 ± 0.35 mg/kg) was the least abundant. Principal component analysis was carried out to understand the pattern of metals by area. It was found that As, Se, and Cr was the most abundant group among the study area. Carcenogenic and Non carcinogenic risk was also assessed for this HMs. While ingestion was the main exposure route for non-carcinogenic risk and inhalation was for carcinogenic risk. As, Cr, Cd, and Cu pose carcinogenic threats higher than safe values except Pb. Both non-carcinogenic risk and carcinogenic risk for Cr were in the unacceptable range for adults. Additionally, some indices that this study evaluated indicate a variation in risk due to the presence of HMs. This study first time identified the Hg in every sample of dust and introduced us about that hidden threat. These results also shed the light on the critical interplay between indoor contaminants and public health, urging stronger laws and increased public awareness to protect vulnerable groups.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100644"},"PeriodicalIF":5.4,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509016","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}

{"title":"Research trends in functionalized and doped graphene catalysts for proton-exchange membrane fuel cells: A bibliometric analysis","authors":"Azza Arba Nurul Ummah ,&nbsp;Farah Radhwa Nadhifah ,&nbsp;Sutarsis ,&nbsp;Achmad Arifin ,&nbsp;Anif Jamaluddin","doi":"10.1016/j.hazadv.2025.100630","DOIUrl":"10.1016/j.hazadv.2025.100630","url":null,"abstract":"<div><div>Catalysts are a crucial component of fuel cells, and graphene-based catalysts have been extensively studied as cost-effective alternatives to Pt catalysts. This study aims to investigate the issues of functionalized and doped graphene as a catalyst for proton-exchange membrane fuel cells (PEMFCs) and analyze the trends through bibliometric analysis. Data were retrieved from the Scopus database, including 1175 scientific articles published between 2008 and 2023 and excluding review papers. VOSviewer and Publish or Perish software were used to analyze the data and obtain information regarding publication and citation metrics, author countries, most cited papers, subject areas, co-authorship, and keyword co-occurrence for mapping research trends. The results revealed fluctuations in the annual publication and citation metrics of articles on functionalized and doped graphene-based catalysts during the research period. Wang et al. published the highest number of articles. The authors demonstrated global cooperation on many interrelated research topics. The 2011 study by Liang et al. on catalyzing CO₃O₄ nanocrystals in graphene was the most cited. Finally, keyword co-occurrence analysis identified research trends in PEMFA development, such as 1) developing carbon sources for PEMFC catalysts and 2) optimizing Pt group metal-free PEMFC catalysts. Thus, this study provides an overview of research hotspots on functionalized and doped graphene-based catalysts for PEMFCs and highlights their potential to drive innovation. Future work should address the stability and cost-effectiveness of functionalized and doped graphene compared to commercial Pt/C catalysts in improving PEMFV performance.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100630"},"PeriodicalIF":5.4,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520279","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}