Journal of hazardous materials最新文献_第8页

Multi-targets detection via combination of multi-stimulus-response engineered bacteria and hydrogel-based separation platform. 结合多刺激响应工程细菌和水凝胶分离平台进行多目标检测。

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-18 DOI: 10.1016/j.jhazmat.2024.135578

Huachao Che, Xike Tian, Yulun Nie, Yong Li, Liqiang Lu, Yuguang Hu

{"title":"Multi-targets detection via combination of multi-stimulus-response engineered bacteria and hydrogel-based separation platform.","authors":"Huachao Che, Xike Tian, Yulun Nie, Yong Li, Liqiang Lu, Yuguang Hu","doi":"10.1016/j.jhazmat.2024.135578","DOIUrl":"10.1016/j.jhazmat.2024.135578","url":null,"abstract":"Establishing a method similar to ICP-MS that can quantitatively analyze multiple heavy metals simultaneously, conveniently, and in situ is highly anticipated. In this study, we integrated the sensing elements of multiple targets and different fluorescence reporting elements to construct an engineered Escherichia coli. When these targets are present, the engineered bacteria can emit a fluorescent signal at the corresponding wavelength. To avoid the inability to accurately distinguish and quantify the content of each target due to the overlap of fluorescence signals when multiple targets coexist, a hydrogel-based separation platform similar to a separation column was constructed. The hydrogel platform can change the detection limit (LOD) and sensitivity by adjusting the adsorption strength towards different targets, so as to realize the differentiation and recognition of their respective detection signals. The LODs of this new detection method for Cd(II), Hg(II), As(III), and Pb(II) are 1.249, 0.380, 3.917, and 0.755 μg/L, respectively. In addition, this biosensor system was applied to detect coexisting Cd(II), Hg(II), As(III), and Pb(II) in actual samples with a recovery rate of 85.61-110.30 %, which is consistent with the classical ICP-MS detection results, confirming the accuracy and reliability of the method for detecting multiple heavy metal coexisting samples.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135578"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142038106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deciphering the spatial organization of fibrotic microenvironment in silica particles-induced pulmonary fibrosis. 解密二氧化硅颗粒诱导的肺纤维化中纤维化微环境的空间组织。

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-22 DOI: 10.1016/j.jhazmat.2024.135540

Liliang Yang, Xinyan Wei, Piaopiao Sun, Jing Wang, Xinbei Zhou, Xinxin Zhang, Wei Luo, Yun Zhou, Wei Zhang, Shencun Fang, Jie Chao

{"title":"Deciphering the spatial organization of fibrotic microenvironment in silica particles-induced pulmonary fibrosis.","authors":"Liliang Yang, Xinyan Wei, Piaopiao Sun, Jing Wang, Xinbei Zhou, Xinxin Zhang, Wei Luo, Yun Zhou, Wei Zhang, Shencun Fang, Jie Chao","doi":"10.1016/j.jhazmat.2024.135540","DOIUrl":"10.1016/j.jhazmat.2024.135540","url":null,"abstract":"Silicosis represents a form of interstitial lung disease induced by the inhalation of silica particles in production environments. A key pathological characteristic of silica-induced pulmonary fibrosis is its localized tissue heterogeneity, which presents significant challenges in analyzing transcriptomic data due to the loss of important spatial context. To address this, we integrate spatial gene expression data with single-cell analyses and achieve a detailed mapping of cell types within and surrounding fibrotic regions, revealing significant shifts in cell populations in normal and diseased states. Additionally, we explore cell interactions within fibrotic zones using ligand-receptor mapping, deepening our understanding of cellular dynamics in these areas. We identify a subset of fibroblasts, termed Inmt fibroblasts, that play a suppressive role in the fibrotic microenvironment. Validating our findings through a comprehensive suite of bioinformatics, histological, and cell culture studies highlights the role of monocyte-derived macrophages in shifting Inmt fibroblast populations into profibrotic Grem1 fibroblast, potentially disrupting lung homeostasis in response to external challenges. Hence, the spatially detailed deconvolution offered by our research markedly advances the comprehension of cell dynamics and environmental interactions pivotal in the development of pulmonary fibrosis.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135540"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142047713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of active silicon amendment on Pb(II)/Cd(II) adsorption: Performance evaluation and mechanism. 活性硅修正对铅（II）/镉（II）吸附的影响：性能评估与机理。

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-23 DOI: 10.1016/j.jhazmat.2024.135614

Xueqin Jiang, Zhenyuan Liu, Bo Yan, Lingzhi Zhao, Tao Chen, Xiaofan Yang

{"title":"Effects of active silicon amendment on Pb(II)/Cd(II) adsorption: Performance evaluation and mechanism.","authors":"Xueqin Jiang, Zhenyuan Liu, Bo Yan, Lingzhi Zhao, Tao Chen, Xiaofan Yang","doi":"10.1016/j.jhazmat.2024.135614","DOIUrl":"10.1016/j.jhazmat.2024.135614","url":null,"abstract":"In this study, a high-Si (Si) adsorbent (APR@Sam) was prepared by acid leaching slag (APR) from lead-zinc (Pb-Zn) tailings based on high-temperature alkali melting technology. The synthesized Si-based materials were applied to aqueous solutions contaminated with Pb and cadmium (Cd) to investigate the crucial role of active Si in sequestering heavy metals. The adsorption capacities of APR@Sam and the Si-depleted material (APR@Sam-NSi) were studied under different pH and temperature conditions. The results showed that as the pH increased from 3 to 7, the adsorption capacity increased, the active Si content in the solution increased by 63 %, and the maximum pH of the solution after adsorption was 7.12. After the removal of active Si, the Pb (II) and Cd (II) adsorption capacities of APR@Sam decreased by 45 % and 11.96 %, respectively. OH- promoted the release of Si into the solution, enhancing the material's adsorption efficiency. The reaction mechanism is mainly attributed to surface complexation guided by Si-O and Si-O-Si bonds, metal cation exchange, and bidentate coordination. The results indicated that the Si component is critical for the removal of Pb (II) and Cd (II) by APR@Sam and provide valuable insights into resource recovery strategies from leaching residues.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135614"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comprehensive design and performance validation of a wind tunnel for advanced respirable dust deposition investigations. 用于高级可吸入粉尘沉积研究的风洞的综合设计和性能验证。

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-13 DOI: 10.1016/j.jhazmat.2024.135516

Ahmed Aboelezz, Maria Beltran, Michael J Hargather, Mostafa Hassanalian, Pedram Roghanchi

{"title":"Comprehensive design and performance validation of a wind tunnel for advanced respirable dust deposition investigations.","authors":"Ahmed Aboelezz, Maria Beltran, Michael J Hargather, Mostafa Hassanalian, Pedram Roghanchi","doi":"10.1016/j.jhazmat.2024.135516","DOIUrl":"10.1016/j.jhazmat.2024.135516","url":null,"abstract":"This study presents the comprehensive design and performance validation of a wind tunnel specifically developed for advanced investigations into respirable dust deposition pertinent to coal mining environments. The design integrates a constant particle delivery system engineered to maintain uniform particle dispersion, which is critical for replicating real-world conditions in coal mines. Our methodology involved using ANSYS Fluent for the design and optimization of a blowing-type wind tunnel, with a focus on controlling turbulence levels and minimizing pressure drops, which are crucial for accurate dust behaviour simulation. The core of our research emphasizes the deployment of the Aerosol Lung Deposition Apparatus (ALDA) alongside a custom dust injection system to measure particle distributions within the test section. This setup enabled us to simulate the inhalation of coal dust particles, providing a realistic scenario for assessing potential hazards to miners. Validation of the tunnel's performance was achieved through extensive testing with dust sensors and a hot-wire anemometer, which verified the airflow velocity and turbulence against the initial design specifications. The findings affirm the wind tunnel's capability to effectively model dust deposition and its impacts, thereby offering opportunities for enhancing miner safety and health standards.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135516"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142057685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The new region demarcation framework for implementing the joint prevention and control of groundwater pollution: A case study in western of Bohai Bay, China. 实施地下水污染联防联控的新区域划分框架：中国渤海湾西部案例研究。

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-18 DOI: 10.1016/j.jhazmat.2024.135565

Bin Hu, Panwen Li, Ruihui Chen, Yinan Zheng, Jiao Li, Yi Li

{"title":"The new region demarcation framework for implementing the joint prevention and control of groundwater pollution: A case study in western of Bohai Bay, China.","authors":"Bin Hu, Panwen Li, Ruihui Chen, Yinan Zheng, Jiao Li, Yi Li","doi":"10.1016/j.jhazmat.2024.135565","DOIUrl":"10.1016/j.jhazmat.2024.135565","url":null,"abstract":"The joint groundwater pollution prevention and control (GPPC) strategy has been extensively implemented to address the coastal region groundwater pollution challenges in China. However, regional groundwater pollution control and treatment efficiency cannot achieve the expected results due to the lack of regional priority control orders and accurate restoration levels. Thus, this study developed a new region demarcation framework method for delineating GPPC zones, in tandem with a comprehensive pollution index method, the DRASTIC model, source apportionment. To validate the new methodological framework, a case study of groundwater pollution in Qinhuangdao, the western of Bohai Bay, China, was implemented to calculate pollution prevention and control zoning. In total, 340 groundwater samples from shallow aquifers with 9 target pollutants (NO3-, NO2-, NH4+, As, Cd, Cr, Cu, Pb, and Ni) were selected as the dataset for GPPC regionalization. The results showed that GPPC zoning further clarified the direction of groundwater pollution protection and management in Qinhuangdao. Compared to the traditional method, the new GPPC zoning better reflects groundwater mobility characteristics and pollution transport and enrichment patterns in terms of groundwater functional integrity and delineation. This new regional demarcation framework method contributes to providing support for the fine division of groundwater pollution zoning and precise pollution control for groundwater resource management in China.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135565"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142038065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contributions from typical sources to microplastics in surface water of a semiarid urban river. 半干旱城市河流地表水中微塑料的典型来源。

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-17 DOI: 10.1016/j.jhazmat.2024.135570

Zheng Liu, Ying Bai, Xiaojiong Zhao, Xianyu Liu, Huijuan Wei, Mingxia Wei, Yang Ma

{"title":"Contributions from typical sources to microplastics in surface water of a semiarid urban river.","authors":"Zheng Liu, Ying Bai, Xiaojiong Zhao, Xianyu Liu, Huijuan Wei, Mingxia Wei, Yang Ma","doi":"10.1016/j.jhazmat.2024.135570","DOIUrl":"10.1016/j.jhazmat.2024.135570","url":null,"abstract":"Urban regions are suggested to be the main source of microplastic pollution in rivers. Thus, we investigated the spatiotemporal distribution of microplastics in the surface water of the Lanzhou section of the Yellow River in a semiarid region and the contributions of typical sources. The average concentration of microplastics in the surface water of the river was 0.98 particles (p) L-1. The daily quantity flux and mass flux were 3.63 × 109 p d-1 and 95.38 kg d-1, respectively. Most of the microplastics in the river were fibers and fragments, composed of polyethylene terephthalate, polyamide, polypropylene and polyethylene. A large quantity and mass of microplastics were found in the high-flow period of the river. The hotspots of microplastic pollution were residential and tourist reaches. The spatial distribution of microplastics was influenced by anthropogenic factors. However, the main factor influencing the temporal distribution of microplastics was precipitation seasonality. Most of the microplastics in the surface water originated from drainage ditches. The direct contribution of microplastics from atmospheric deposition was also considerable. Our results suggest that the contribution of microplastics from atmospheric deposition to urban rivers is worthy of attention.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135570"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142038101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrogen bonding-mediated interaction underlies the enhanced membrane toxicity of chemically transformed polystyrene microplastics by cadmium. 氢键介导的相互作用是镉增强化学转化聚苯乙烯微塑料膜毒性的基础。

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-22 DOI: 10.1016/j.jhazmat.2024.135562

Wanqing Zhao, Tong Ye, Jianwen Zhou, Xuan Zhang, Ke Wang, Hong Zhang, Jiansheng Cui, Shuping Zhang, Lixin Wang

{"title":"Hydrogen bonding-mediated interaction underlies the enhanced membrane toxicity of chemically transformed polystyrene microplastics by cadmium.","authors":"Wanqing Zhao, Tong Ye, Jianwen Zhou, Xuan Zhang, Ke Wang, Hong Zhang, Jiansheng Cui, Shuping Zhang, Lixin Wang","doi":"10.1016/j.jhazmat.2024.135562","DOIUrl":"10.1016/j.jhazmat.2024.135562","url":null,"abstract":"The global attention on microplastic pollution and its implications for human health has grown in recent years. Additionally, the co-existence of heavy metals may significantly alter microplastics' physicochemical characteristics, potentially amplifying their overall toxicity-a facet that remains less understood. In this study, we focused the membrane toxicity of modified polystyrene microplastics (PS-MPs) following cadmium (Cd) pretreatment. Our findings revealed that Cd-pretreated PS-MPs exacerbated their toxic effects, including diminished membrane integrity and altered phase fluidity in simulated lipid membrane giant unilamellar vesicles (GUVs), as well as heightened membrane permeability, protein damage, and lipid peroxidation in red blood cells and macrophages. Mechanistically, these augmented membrane toxicities can be partially ascribed to modifications in the surface roughness and hydrophilicity of Cd-pretreated PS-MPs, as well as to interactions between PS-MPs and lipid bilayers. Notably, hydrogen bonds emerged as a crucial mechanism underlying the enhanced interaction of PS-MPs with lipid bilayers.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135562"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142047716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergism of endophytic microbiota and plants promotes the removal of polycyclic aromatic hydrocarbons from the Alfalfa rhizosphere. 内生微生物群与植物的协同作用促进了紫花苜蓿根瘤菌群对多环芳烃的清除。

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-20 DOI: 10.1016/j.jhazmat.2024.135513

Xianghui Cheng, Longfei Jiang, Xuan Zhao, Shuang Wang, Jibing Li, Chunling Luo, Gan Zhang

{"title":"Synergism of endophytic microbiota and plants promotes the removal of polycyclic aromatic hydrocarbons from the Alfalfa rhizosphere.","authors":"Xianghui Cheng, Longfei Jiang, Xuan Zhao, Shuang Wang, Jibing Li, Chunling Luo, Gan Zhang","doi":"10.1016/j.jhazmat.2024.135513","DOIUrl":"10.1016/j.jhazmat.2024.135513","url":null,"abstract":"Endophytic bacteria can promote plant growth and accelerate pollutant degradation. However, it is unclear whether endophytic consortia (Consortium_E) can stabilize colonisation and degradation. We inoculated Consortium_E into the rhizosphere to enhance endophytic bacteria survival and promote pollutant degradation. Rhizosphere-inoculated Consortium_E enhanced polycyclic aromatic hydrocarbon (PAH) degradation rates by 11.5-13.1 % compared with sole bioaugmentation and plant treatments. Stable-isotope-probing (SIP) showed that the rhizosphere-inoculated Consortium_E had the largest number of degraders (8 amplicon sequence variants). Furthermore, only microbes from Consortium_E were identified among the degraders in bioaugmentation treatments, indicating that directly participated in phenanthrene metabolism. Interestingly, Consortium_E reshaped the community structure of degraders without significantly altering the rhizosphere community structure, and strengthened the core position of degraders in the network, facilitating close interactions between degraders and non-degraders in the rhizosphere, which were crucial for ensuring stable functionality. The synergistic effect between plants and Consortium_E significantly enhanced the upregulation of aromatic hydrocarbon degradation and auxiliary degradation pathways in the rhizosphere. These pathways showed a non-significant increasing trend in the uninoculated rhizosphere compared with the control, indicating that Consortium_E primarily promotes rhizosphere effects. Our results explore the Consortium_E bioaugmentation mechanism, providing a theoretical basis for the ecological restoration of contaminated soils.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135513"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142047725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

For aqueous/soil cadmium immobilization under acid attack, does the hydroxyapatite converted from Pseudochrobactrum sp. DL-1 induced vaterite necessarily show higher stability? 对于在酸性侵蚀下固定水体/土壤中的镉，由假包囊杆菌 DL-1 诱导的水苏石转化而成的羟基磷灰石是否一定具有更高的稳定性？

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-22 DOI: 10.1016/j.jhazmat.2024.135631

Mingping Sheng, Yikai Liu, Guoquan Zeng, Qingquan Zhang, He Peng, Ling Lei, Huakang Liu, Nan He, Heng Xu, Hongyan Guo

{"title":"For aqueous/soil cadmium immobilization under acid attack, does the hydroxyapatite converted from Pseudochrobactrum sp. DL-1 induced vaterite necessarily show higher stability?","authors":"Mingping Sheng, Yikai Liu, Guoquan Zeng, Qingquan Zhang, He Peng, Ling Lei, Huakang Liu, Nan He, Heng Xu, Hongyan Guo","doi":"10.1016/j.jhazmat.2024.135631","DOIUrl":"10.1016/j.jhazmat.2024.135631","url":null,"abstract":"Microbial induced carbonate precipitation (MICP) technology was widely applied to immobilize heavy metals, but its long-term stability is tough to maintain, particularly under acid attack. This study successfully converted Pseudochrobactrum sp. DL-1 induced vaterite (a rare crystalline phase of CaCO3) to hydroxyapatite (HAP) at 30 ℃. The predominant conversion mechanism was the dissolution of CdCO3-containing vaterite and the simultaneous recrystallization of Ca4.03Cd0.97(PO4)3(OH)-containing HAP. For aqueous Cd immobilization, stability test at pH 2.0-10.0 showed that the Cd2+ desorption rate of Cd-adsorbed vaterite (3.96-4.35 ‱) were 7.13-20.84 times greater than that of Cd-adsorbed HAP (0.19-0.61 ‱). For soil Cd immobilization under 60 days of acid-rain erosion, the highest immobilization rate (51.00 %) of exchangeable-Cd and the lowest dissolution rate (-0.18 %) of carbonate-Cd were achieved with 2 % vaterite, while the corresponding rates were 16.78 % and 1.31 % with 2 % HAP, respectively. Furthermore, vaterite outperformed HAP in terms of soil ecological thorough evaluation. In conclusion, for Cd immobilization by MICP under acid attack, DL-1 induced vaterite displayed direct application value due to its exceptional stability in soil and water, while the mineral conversion strategy we presented is useful for further enhancing the stability in water.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135631"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142057621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrothermal synthesized kaolin group lamellar/spongy aluminosilicates for enhanced lead vapor capture. 用于增强铅蒸气捕获的水热法合成高岭土类片状/海绵状铝硅酸盐。

Journal of hazardous materials Pub Date : 2024-10-05 Epub Date: 2024-08-13 DOI: 10.1016/j.jhazmat.2024.135509

Tengfei He, Zifeng Luo, Baosheng Jin

{"title":"Hydrothermal synthesized kaolin group lamellar/spongy aluminosilicates for enhanced lead vapor capture.","authors":"Tengfei He, Zifeng Luo, Baosheng Jin","doi":"10.1016/j.jhazmat.2024.135509","DOIUrl":"10.1016/j.jhazmat.2024.135509","url":null,"abstract":"Developing high-temperature-resistant adsorbents with superior porous properties is crucial for safely disposing of heavy metal-containing solid waste via pyrolysis. We synthesized aluminosilicates hydrothermally and observed that acidic conditions, especially HCl (pH=2.6), favored sponge-like mineral (NC2.6) formation with a specific surface area of 500.31 m²/g and pore volume of 0.986 cm³ /g, while alkaline conditions (pH=12.0) promoted spherical particle growth. NC2.6 exhibited higher adsorption capacity compared to kaolinite and halloysite in the PbCl2 vapor adsorption, reaching a maximum of 137.68 mg/g at 700 ℃ (75.91 % stable). We examined the effect of CO2 and H2O on adsorption efficiency and explored the mechanisms using DFT and GCMC simulations. From GCMC results, CO2 negatively impacted PbCl2 adsorption due to competitive adsorption, while H2O increased adsorption content (144.24 mg/g at 700 ℃) by converting PbCl2 into oxides. DFT revealed the presence of CO2 enhanced the adsorption stability of PbCl2 via the formation of covalent bonds between O in CO2 and Pb, and active O on the aluminosilicate surface. H2O increased PbCl2 adsorption energy, as O in H2O occupied an active Al that originally formed a covalent bond with Cl, while the H formed a weak hydrogen bond with this Cl.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"478 ","pages":"135509"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142019923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0