Journal of Environmental Sciences-china最新文献

{"title":"Health effects of a glyphosate-based herbicide on Elliptio complanata: Multi-biomarker approach","authors":"Yannick Arnold Nombré ,&nbsp;Maxime Gauthier ,&nbsp;Monique Boily ,&nbsp;Lise Parent","doi":"10.1016/j.jes.2024.11.030","DOIUrl":"10.1016/j.jes.2024.11.030","url":null,"abstract":"<div><div>The active ingredient (a.i.) glyphosate is frequently detected in waterways at relatively high concentrations, posing a risk to aquatic organisms including freshwater mussels, North America's most endangered animal group. This research aims to evaluate for the first time the effect of a glyphosate-based herbicide on a freshwater mussel (Unionid) using a battery of biomarkers. The mussel <em>Elliptio complanata</em> was exposed for 21 days to Credit® Xtreme (at 0, 50, 100, and 150 µg/L a.i. of glyphosate). An integrated biomarker response (IBRv2) was used to visualize the overall impact of each glyphosate-based herbicide concentration on mussels’ health conditions. The biomarker results showed that glyphosate (used at 100 µg/L and 150 µg/L) induced lipid peroxidation in the gills and digestive gland and inhibited acetylcholinesterase in the foot and gills, indicating oxidative damage and neurotoxicity. Other biomarkers were influenced at the lowest concentration of glyphosate tested (50 µg/L): lipids (decrease), triglycerides (increase) and, to a lesser extent, vitellogenin (decrease). For the latter biomarkers, the sexes were not affected similarly, and they were only sensitive at 50 µg/L, only females showed a trend toward a decrease for vitellogenin and a decrease for lipids. Using IBRv2, we found a clear discrimination between concentrations, and the index values increased with glyphosate concentration, attesting to the deterioration in biomarker-defined mussel health when exposed to Credit® Xtreme at realistic glyphosate concentrations in agricultural rivers. This study shows that glyphosate-based herbicides can alter neurological function, induce oxidative damage, and selectively modify the <em>E. complanata</em> metabolism at relatively low concentrations.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 263-278"},"PeriodicalIF":5.9,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Microcystin-LR exposure on biochemical responses, transcriptomic profiles, gut microbiota, and growth performance in grass carp (Ctenopharyngodon idella)","authors":"Runbo Li,&nbsp;Yinghu Hao,&nbsp;Yubang Shen,&nbsp;Lang Gui,&nbsp;Biao Du,&nbsp;Lingli Xie,&nbsp;Jiale Li,&nbsp;Xiaoyan Xu","doi":"10.1016/j.jes.2024.11.027","DOIUrl":"10.1016/j.jes.2024.11.027","url":null,"abstract":"<div><div>In recent years, Microcystin-LR (MC-LR) has been frequently detected in aquatic environments, exerting detrimental effects on the health of aquatic organisms. The grass carp (<em>Ctenopharyngodon idella</em>), an economically important fish, inhabits environments prone to MC-LR contamination. To investigate the toxicological mechanisms of MC-LR on grass carp, the fish were exposed to water containing 35.8 µg/L MC-LR. The physiological, biochemical, gut microbiota, and transcriptomic responses of the grass carp were evaluated at various time points (days 0, 1, 3, 7, and 21). The results showed that total superoxide dismutase activity in the liver and intestine was significantly increased after 21 days of exposure. Additionally, pathological damage was observed, including impaired intestinal epithelial barrier and nuclear pyknosis in the liver cell. MC-LR exposure also altered the diversity and composition of the gut microbiota and reshaped the microbiota interaction network, increasing the abundance of <em>Cetobacterium</em> and <em>Vibrio</em> by 32.43 % and 25.7 %, respectively. The intestinal microbiota functions were enriched in carbohydrate metabolism (10.45 %) and amino acid metabolism (9.89 %). RNA sequencing identified 504 shared differentially expressed genes (DEGs). The expression of the immune genes <em>ITGB1</em> and <em>GART</em> was significantly upregulated in the D21 group. The upregulated DEGs were enriched in the complement and coagulation cascade pathways. MC-LR exposure induced metabolic disorders in grass carp, with upregulated genes significantly enriched in amino acid and carbohydrate metabolism pathways, while downregulated genes were enriched in lipid metabolism. This study provides valuable insights into the effects and toxicological mechanisms of MC-LR on aquatic organisms.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 850-865"},"PeriodicalIF":5.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insight into the effect of manganese oxidation state on the synthesis of ethylene urea from CO2 and ethylenediamine","authors":"Fei Wang ,&nbsp;Biao Da ,&nbsp;Yulong Jin ,&nbsp;Piracha Sanwal ,&nbsp;Lei Cui ,&nbsp;Siru Chen ,&nbsp;Jie Xu ,&nbsp;Bing Xue ,&nbsp;Gao Li","doi":"10.1016/j.jes.2024.11.025","DOIUrl":"10.1016/j.jes.2024.11.025","url":null,"abstract":"<div><div>Herein, a series of manganese oxide catalysts with different valences (Mn₃O₄, Mn₂O₃, and MnO₂) were designed and synthesized for the synthesis of ethylene urea (EU) from ethylenediamine (EDA) and carbon dioxide (CO₂). With a maximal EDA conversion of 82 % and EU selectivity of 99 % at 160 °C for 2 h, Mn₂O₃ catalysts had the best catalytic activity among them, which was superior to the reported catalysts. In the following order: Mn₂O₃ &gt; MnO₂ &gt; Mn₃O₄, the catalytic activity for the synthesis of EU from CO₂ and EDA decreased. Further characterization showed the Mn₂O₃ catalyst possessed a greater Mn³⁺/Mn⁴⁺ ratio and more surface oxygen vacancies than the MnO₂ and Mn₃O₄, which improved its capacity to adsorb and activate CO₂ and EDA. After four recycling runs, the EDA conversion slightly declined from 82 % to 56 % on Mn₂O₃ catalyst, while no obvious change in EU selectivity was observed. The loss of surface O_v contents and Mn³⁺ proportion were concluded as main reasons for the decrease in catalytic activity over Mn₂O₃ catalyst. This work demonstrated a metal oxide catalyst that was efficient in producing EU from CO₂ and EDA.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 37-47"},"PeriodicalIF":5.9,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multilevel immobilized CNT/SCN purification beads and the removal efficiency over TCHCl/clay composite pollutant in the underwater environment","authors":"Zhenyu Shi ,&nbsp;Lei Rao ,&nbsp;Peifang Wang","doi":"10.1016/j.jes.2024.11.026","DOIUrl":"10.1016/j.jes.2024.11.026","url":null,"abstract":"<div><div>Natural water bodies often contain a significant amount of suspended colloidal particles, which not only reduce water transparency but also have a high adsorption capacity for soluble pollutants. These composite pollutants can migrate rapidly with water flow, which are usually difficult to degrade and remove by traditional methods. Aiming at suspended contaminated waterbodies, this study introduced a multilevel loading method to prepare carbon nanotube/sulfur doped carbon nitride (CNT/SCN) composite photocatalytic purification beads. The surface of the obtained core-shell structured purification beads is loaded with CNT/SCN photocatalysts which exhibit three-dimensional conductive and porous characteristics. TC<img>HCl was introduced as the target pollutant, and the removal efficiency of the composite purification beads under different water turbidity and hydrodynamic conditions were investigated. The results showed that during 15 h of degradation process, at the depth of 20 cm, with the flow rate of 0.015 m³/h and water turbidity of 10.3 NTU, the purification beads achieved a removal efficiency of 54.9% for tetracycline hydrochloride (TC<img>HCl), which was 2.03 times higher than that of SCN purification beads. The three-dimensional porous structure of the surface exhibited excellent adsorption and trapping capabilities for suspended colloidal particles. The introduction of carbon nanotubes enhanced charge transfer ability of the surface layer and reduces the local charge accumulation effect caused by surface adsorption, which effectively enhances the adsorption of suspended colloid, and also significantly improved the degradation efficiency of TC<img>HCl. This study provides a valuable insight for the engineering application of photocatalytic technology.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 13-24"},"PeriodicalIF":5.9,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rates of anaerobic oxidation of methane and metabolite production from a model landfill gas using an enriched fermentative microbial community","authors":"Cecilia Lizeth Alvarez-Guzmán ,&nbsp;Karla María Muñoz-Páez ,&nbsp;Gloria Moreno-Rodríguez ,&nbsp;Iván Moreno-Andrade ,&nbsp;Idania Valdez-Vazquez","doi":"10.1016/j.jes.2024.11.023","DOIUrl":"10.1016/j.jes.2024.11.023","url":null,"abstract":"<div><div>Anaerobic oxidation of methane (AOM) can contribute to reducing methane emissions in landfills; however, the AOM rates vary depending on the inoculum source. This study addressed the capacity of AOM of a fermentative microbial community derived from a reactor treating municipal solid wastes. First, the inoculum's autotrophic capacity was verified using a gas mixture of 75 % CO₂ and 25 % H₂. Results demonstrated that the fermentative microbial community reached a maximum CO₂ consumption rate of 22.5 ± 1.2 g CO₂/(m³·h), obtaining acetate as the main product. Then, the inoculum was grown on a gas mixture of 50 % CH₄, 35 % CO₂, and 15 % N₂, using iron (Fe³⁺) as the electron acceptor. The AOM rates increased over time and peaked at 3.1 ± 0.9 g CH₄/(m³·h) by 456 h with the simultaneous consumption of CO₂. Acetate was the main product, with a maximum concentration of 180 ± 9 mg/L. By 408 h, a bacterial cluster of indicator species correlated with the AOM rates, including to Rhodobactereceae (<em>r</em> = 0.80), <em>Oceanicola</em> (<em>r</em> = 0.80), <em>Propionicicella</em> (<em>r</em> = 0.77), Christensenellaceae (<em>r</em> = 0.58), Oscillospiraceae (<em>r</em> = 0.53), <em>Mobilitalea</em> (<em>r</em> = 0.66), Hungateiclostridiaceae (<em>r</em> = 0.46), and <em>Izemoplasmatales</em> (<em>r</em> = 0.77). <em>Methanosarcina, Methanobacterium</em>, and <em>Methanoculleus</em> correlated with the AOM and CO₂ consumption rates. A co-occurrence network analysis showed that <em>Methanosarcina</em> positively interacted with syntrophic bacteria like Christensenellaceae and <em>Acinetobacter</em> and diverse heterotrophic bacteria. This study demonstrated the feasibility of obtaining a CH₄-oxidizing microbial community in 16 days, exhibiting AOM rates higher than those reported for soils.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 291-302"},"PeriodicalIF":5.9,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The bioaccessible and labile contents of As(Ⅲ) and As(V) in four typical soils in China assessed by different methods","authors":"Yangxiaoxiao Shi ,&nbsp;Linyu Guo ,&nbsp;Kewei Li ,&nbsp;Jing Yan ,&nbsp;Jun Jiang ,&nbsp;Zhineng Hong ,&nbsp;Renkou Xu","doi":"10.1016/j.jes.2024.11.024","DOIUrl":"10.1016/j.jes.2024.11.024","url":null,"abstract":"<div><div>Soil bioaccessible and labile As were extracted using <em>in vitro</em>, diffusive gradients in thin films (DGT) and chemical extraction methods. The results showed that As(Ⅲ) was readily converted to As(V) in the soils, which was promoted by alkaline conditions and higher content of easily reducible Mn. As(V) was not readily reduced to As(Ⅲ) in these soils. The effect of soil pH on bioaccessible As content by <em>in vitro</em> method and labile As content by DGT method were inconsistent among different soils due to the coincidence of As(Ⅲ) and As(V), with As(Ⅲ) being more readily mobilized in acidic environment while the opposite was true for As(V). The labile As extracted by phosphate was significantly correlated with that extracted by <em>in vitro</em> method, while the labile As extracted by the DGT was correlated with that extracted by the CaCl₂ method. The labile As extracted by the DGT was much lower than that by the <em>in vitro</em> and phosphate methods. The <em>in vitro</em> and phosphate methods extracted As in soils which is tightly bound to Fe oxides through dissolution, complexation and ion exchange. In contrast, the DGT method relied on the adsorption of soil labile As onto ZrO-based binding layer. The higher contents of soil Fe oxides and greater adsorption capacity for As led to the lower content of As measured by the DGT method. In conclusion, the <em>in vitro</em> and phosphate extraction are potential to be used to predict soil bioaccessible As. The DGT method is more suitable for ecological risk prediction.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 354-365"},"PeriodicalIF":5.9,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gut dysbiosis exacerbates inflammatory liver injury induced by environmentally relevant concentrations of nanoplastics via the gut-liver axis","authors":"Sugan Xia ,&nbsp;Chaoyue Yan ,&nbsp;Guodong Cai ,&nbsp;Qingyu Xu ,&nbsp;Hui Zou ,&nbsp;Jianhong Gu ,&nbsp;Yan Yuan ,&nbsp;Zongping Liu ,&nbsp;Jianchun Bian","doi":"10.1016/j.jes.2024.11.022","DOIUrl":"10.1016/j.jes.2024.11.022","url":null,"abstract":"<div><div>As an emerging and potentially threatening pollutant, nanoplastics (NPs) have received considerable global attention. Due to their physical properties and diminutive size, NPs ingestion can more easily cross biological barriers and enter the human and animal body. Despite reports of hepatotoxicity associated with NPs, their impact and potential underlying mechanisms remain elusive. In this study, we investigated the impact of NPs at concentrations found in the environment on the gut flora, intestinal barrier function, liver pyroptosis, and inflammation in mice following 12 weeks of exposure. To further validate the involvement of gut flora in inflammatory liver damage caused by NPs, we utilized antibiotics to remove the intestinal flora and performed fecal microbiota transplantation. We confirmed that NPs exposure altered the gut microbiota composition, with a notable rise in the proportions of <em>Alloprevotella</em> and <em>Ileibacterium</em> while causing a decrease in the relative proportions of <em>Dubosiella</em>. This disruption also affected the gut barrier, increasing lipopolysaccharides in circulation and promoting liver pyroptosis. Importantly, mice receiving fecal transplants from NPs-treated mice showed intestinal barrier damage, liver pyroptosis, and inflammation. However, NPs effects on the intestinal barrier and liver pyroptosis were attenuated by antibiotics depletion of the commensal microbiota. In summary, our current research revealed that extended exposure to environmentally relevant concentrations of NPs resulted in inflammatory damage to the liver. Additionally, we have identified for the first time that imbalances in intestinal flora are crucial in liver pyroptosis induced by NPs.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 250-266"},"PeriodicalIF":5.9,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Migration and morphological transformation of Mn2+ and its effect on microbial community in the A2O process","authors":"Xiaohui Xu ,&nbsp;Jiexiong Zhong ,&nbsp;Xinyao Hao ,&nbsp;Qun Liu ,&nbsp;Min Lu ,&nbsp;Xiaohui Guan ,&nbsp;Lanhe Zhang","doi":"10.1016/j.jes.2024.11.015","DOIUrl":"10.1016/j.jes.2024.11.015","url":null,"abstract":"<div><div>Manganese ion (Mn²⁺) was generated from metallurgical, steel making and chemical industries. It could affect microbial activity and community structure after entering sewage treatment plant. The effect of Mn²⁺ on the pollutant removal, metal distribution patterns and composition of microbial communities were investigated in a an anaerobic/anoxic/oxic (A²O) process. The results showed that when Mn²⁺ concentration was 5 mg/L, the efficiencies for the removal of chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) attained remarkable levels of 96 %, 93 %, and 99 %, respectively. In the sludge, the distribution pattern of Mn²⁺ concentration was tightly bound extracellular polymeric substances (TB-EPS) &gt; supernatant &gt; loosely bound EPS (LB-EPS) &gt; soluble microbial products (SMP). Mn²⁺ was found to enrich and accumulate in the microorganism cells. In addition, Mn²⁺ was mainly found in residual fractions and reducible fractions of pellet that manganese was present. The pellet was discovered to contain a substantial quantity of manganese, which was present in various oxidation states, including Mn⁴⁺, Mn³⁺ and Mn²⁺. The escalating levels of Mn²⁺ led to a reduction in the richness and diversity of microbial communities inhabiting various regions of the A²O reactor. Nonetheless, the uniformity experienced only subtle alterations. Proteobacteria and Bacteroidetes emerged as the leading phyla within the microbial ecosystem, experiencing a steady rise in their respective proportions. The dominant bacterial groups, <em>Azospira</em> and <em>Dechromonas</em>, experienced an incremental increase in their relative prevalence, which played a constructive role in the process of pollutant removal.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 404-416"},"PeriodicalIF":5.9,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Probiotic Lactobacillus rhamnosus alleviates microcystin-LR induced visual system defects and dysfunction in zebrafish by modulating apoptosis, retinal inflammation, and phototransduction","authors":"Ning Luan ,&nbsp;Qing Yang ,&nbsp;Ming Liu ,&nbsp;Ping Deng ,&nbsp;Tien-Chieh Hung ,&nbsp;Qin Wu ,&nbsp;Junli Zuo ,&nbsp;Haoling Liu ,&nbsp;Guangyu Li","doi":"10.1016/j.jes.2024.11.013","DOIUrl":"10.1016/j.jes.2024.11.013","url":null,"abstract":"<div><div>Microcystin-LR (MC-LR) is a highly toxic category of biotoxins that can damage eye development and retinal structure in zebrafish, while probiotics can largely benefit the function of the retina. Although they both act on the visual system, whether probiotics can alleviate the visual damage caused by MC-LR in fish and the underlying mechanisms remains unclear. In this study, we exposed adult zebrafish for 28 days at MC-LR concentrations of 0, 2.20, and 22.00 µg/L with or without the probiotic <em>Lactobacillus rhamnosus</em> in the diet. MC-LR exposure alone resulted in structural damage to the retina and abnormal phototropic behavior, whereas <em>L. rhamnosus</em> could alleviate these damages. Biochemical analyses showed that MC-LR-induced abnormalities in apoptosis of ocular cells, retinal inflammatory responses, neurotransmission, and phototransduction were restored in the <em>L. rhamnosus</em> treatment group, indicating <em>L. rhamnosus</em> alleviated MC-LR-induced defects in the visual system and dysfunctions. This study underlines the defensive role of probiotics in protecting the host from environmental pollutants, which may provide guidance for the application of probiotics in aquaculture.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 314-329"},"PeriodicalIF":5.9,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring flower-like NiCo LDH/MoS2/HPC ternary hierarchical heterostructures electrodes with enhanced energy density for aqueous asymmetric supercapacitor","authors":"Shaohui Wang ,&nbsp;Lei Wang ,&nbsp;Yanfeng Wang ,&nbsp;Lin Li ,&nbsp;Hua Wang ,&nbsp;Tonghua Wang","doi":"10.1016/j.jes.2024.11.019","DOIUrl":"10.1016/j.jes.2024.11.019","url":null,"abstract":"<div><div>The imperative quest for renewable energy sources and advanced energy storage technologies has arisen amidst the escalating perils of climate change and dwindling fossil fuel reserves. In the realm of energy storage technologies, asymmetric supercapacitor (ASC) has garnered significant attention owing to its high energy density and power density. In the quest for advanced electrode materials for ASC, the integration of 2D layered heterostructures on hierarchical porous carbon (HPC) substrates has emerged as a promising approach to enhance the electrochemical performance. Herein, a highly innovative hierarchical NiCo LDH/MoS₂/HPC heterostructure was successfully synthesized using a simple two-step hydrothermal method for the electrode materials of ASC. Benefiting from the unique hierarchical heterostructure of NiCo LDH/MoS₂/HPC composite and the synergistic effect between the components, it reveals an exceptional specific capacitance of 2368 F/g at 0.5 A/g in a three-electrode system, which significantly exceeds that of conventional supercapacitor electrodes. Additionally, the ASC device of NiCo LDH/MoS₂/HPC//HPC achieves remarkable specific capacitance of 236 F/g at 0.5 A/g and an impressive energy density of 84 Wh/kg at a power density of 400 W/kg, as well as superior cyclic stability. This study not only demonstrates the effectiveness of incorporating MoS₂ and NiCo LDH into a carbon-based framework for supercapacitor applications but also opens avenues for designing more efficient energy storage devices.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 511-523"},"PeriodicalIF":5.9,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}