Process Safety and Environmental Protection最新文献

{"title":"Evaluation of electrochemical regeneration of antibiotic-loaded clay in a single-reactor process","authors":"Raissa Antonelli ,&nbsp;Antonia Regina dos S. Gois ,&nbsp;Geoffroy Roger Pointer Malpass ,&nbsp;Sueli Ivone Borrely ,&nbsp;Antonio Carlos Silva Costa Teixeira","doi":"10.1016/j.psep.2026.108573","DOIUrl":"10.1016/j.psep.2026.108573","url":null,"abstract":"<div><div>This study investigated the in situ electrochemical regeneration of a clay adsorbent loaded with sulfamethoxazole (SMX) using two systems (NaCl/DSA and Na₂SO₄/BDD), aiming to understand the regeneration process and evaluate the quality of the generated electrolyte solution. The NaCl/DSA system exhibited higher regeneration efficiency (<em>RE</em>: 135–97 %) compared to Na₂SO₄/BDD (<em>RE</em>: 101–51 %), highlighting the role of active chlorine species in SMX degradation. During regeneration, SMX was not detected in the solution, being degraded into transformation products, or mineralized. The presence of traces of hydrocarbons and the increase in the total organic carbon content in the electrolytic solution suggest partial oxidation of the surfactant present in the clay formulation, possibly generating new active sites and enhancing adsorption capacity (<em>RE</em> &gt; 100 %). However, extended regeneration times appear to promote significant loss of adsorbent integrity. The compounds detected in the solution resulting from the Na₂SO₄/BDD system indicate more pronounced degradation of the clay matrix, which may have influenced its lower regenerative efficiency. Although the NaCl/DSA system demonstrated greater efficiency, its corresponding electrolyte solution exhibited increased toxicity toward <em>Lactuca sativa</em> seedlings. In contrast, acute toxicity tests using <em>Aliivibrio fischeri</em> indicated that the produced electrolytic solutions did not have any inhibitory effects. Furthermore, photolysis treatment lowered phytoxicity and improved environmental compatibility. Finally, characterization analyses demonstrated preservation of the structural integrity of the clay against the applied processes.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108573"},"PeriodicalIF":7.8,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135197","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":"From waste to catalyst: A “waste−treats−waste” strategy using vivianite for simultaneous phosphorus recovery and sulfadiazine degradation","authors":"Fengping Zhou ,&nbsp;Nan Zhao ,&nbsp;Ruigang Wang ,&nbsp;Meina Guo ,&nbsp;Jialin Liang ,&nbsp;Lei Zhang ,&nbsp;Gang Qin ,&nbsp;Dachun Feng ,&nbsp;Hui Liu","doi":"10.1016/j.psep.2026.108566","DOIUrl":"10.1016/j.psep.2026.108566","url":null,"abstract":"<div><div>Livestock wastewater represents a dual environmental challenge, being a source of both nutrient pollution from phosphorus and emerging contaminants like the antibiotic sulfadiazine (SDZ). This study presents a circular \"waste-treats-waste\" strategy to address both issues simultaneously by recovering phosphorus from pig manure leachate as vivianite and valorizing it as a catalyst to degrade SDZ. P was recovered from pig manure leachate as vivianite, achieving a recovery rate of 98.5 % under optimized conditions (pH 7, Fe/P molar ratio 2.6). Recovered vivianite was then used to activate sodium percarbonate (SPC) for the degradation of SDZ. This dual−function system generated multiple reactive oxygen species (ROS), including hydroxyl radicals (•OH), carbonate radicals (CO₃^•−), superoxide (O₂^•−), and singlet oxygen (¹O₂), with •OH being the dominant species, contributing to a maximum SDZ removal of 84.1 % at pH 3.00 with 300 mg L⁻¹ vivianite and 0.50 mM SPC after 30 min. Site−specific attacks on the SDZ molecule were revealed by density functional theory (DFT) calculations of Fukui function indices. This theoretical prediction was experimentally validated by LC−MS analyses, which identified ten major transformation products. These products, formed via hydroxylation, desulfonation, and ring-opening reactions, demonstrate the diverse degradation pathways operative in the system. Quantitative structure-activity relationship (QSAR) modeling indicated that while some intermediates showed increased bioaccumulation potential, progressive degradation generally leads to less toxic products. This work establishes a viable circular economy model that integrates nutrient recovery with micropollutant control, highlighting the potential of valorized vivianite for sustainable agricultural wastewater management.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108566"},"PeriodicalIF":7.8,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135199","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":"Struvite as soil conditioner for the effective remediation of heavy metals in acidic soil: Performance and mechanism","authors":"Yuankun Yu ,&nbsp;Guowei Liu ,&nbsp;Wei Wang ,&nbsp;Xiaoning Liu","doi":"10.1016/j.psep.2026.108562","DOIUrl":"10.1016/j.psep.2026.108562","url":null,"abstract":"<div><div>Soil acidification and heavy metal pollution pose significant challenges to sustainable agricultural production. This study evaluated the efficacy of struvite, recovered from phosphogypsum leachate, in remediating copper (Cu) and cadmium (Cd) contamination from two acidic soils (pH 5.40 and 6.32) through a 45-day soil incubation experiment. The application of struvite significantly increased soil pH by 1.82–2.45 and 0.79–1.63 units, respectively. With increasing struvite dosage, the exchangeable and residual fractions of Cu and Cd decreased, while the carbonate-bound, iron/manganese oxide-bound, and organic-bound fractions increased. Struvite dissolution also enhanced soil fertility, although nutrient levels showed no significant difference between 20 and 45 days, indicating that dissolution occurred primarily within the first 20 days. Soil enzyme activities responded variably; alkaline phosphatase activity increased by 20.0–93.3 % and 5.50–45.0 % in the two soils, respectively, promoting organic matter degradation and nutrient availability, thereby further immobilizing heavy metals. Multivariate analysis revealed that soil pH was the dominant factor influencing heavy metal speciation and nutrient dynamics, showing a significant positive correlation only with catalase and alkaline phosphatase activities. Remediation efficiency depended on soil properties and struvite dosage, with more acidic soil exhibiting greater improvement. The immobilization mechanism involved pH-induced reduction in heavy metal bioavailability, complemented by surface adsorption, complexation, and precipitation. These findings demonstrate that struvite is an effective and sustainable soil conditioner for immobilizing heavy metals in acidic soils, thereby improving conditions for crop production.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108562"},"PeriodicalIF":7.8,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135203","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":"A review of enhanced and emerging contaminant removal by modified membranes: Advanced materials, mechanisms, and performance optimization","authors":"Durga Chandrashekhar ,&nbsp;Muhammad Tawalbeh ,&nbsp;Amani Al-Othman ,&nbsp;Fares Almomani","doi":"10.1016/j.psep.2026.108553","DOIUrl":"10.1016/j.psep.2026.108553","url":null,"abstract":"<div><div>With increasing industrial activity, multiple emerging contaminants, ranging from organic compounds like pharmaceuticals to inorganic compounds like heavy metals, are present in different water sources. However, many of the current water/wastewater treatment facilities struggle to completely remove these contaminants, leading to their leaching into the environment. This review examines literature surrounding novel membrane technology as a potential solution to mitigate these contaminants, including a study of the advanced materials and their associated mechanisms. While size exclusion membranes are some of the most commonly found, especially in pilot/full-scale studies and across literature, novel materials like MOFs and hybrid structures have become increasingly prevalent, relying on other mechanisms like adsorption. In addition to the discussion of such advanced membranes, this review proposes methods for optimizing membrane performance, focusing on the selectivity-permeability paradox and membrane fouling among other factors. These factors play a key role in upscaling these membranes, and this review concludes with a discussion of future research directions to truly commercialize membrane technology for enhanced water treatment. This review concludes that, from a social perspective, membrane technologies appear to be the most effective and affordable. They are part of the next step towards the 6th UN Sustainable Development Goal (SDG-6), especially when coupled with advanced functional materials.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108553"},"PeriodicalIF":7.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135201","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":"Study on ball milling driven solvent extraction – Ozone oxidation decolorization of waste printed polyester fabrics","authors":"Xiao Li ,&nbsp;Chengyong Gao ,&nbsp;Wansi Li ,&nbsp;Sheng Shi ,&nbsp;Enbin Zhu ,&nbsp;Meiling Zhang ,&nbsp;Shuhua Wang","doi":"10.1016/j.psep.2026.108545","DOIUrl":"10.1016/j.psep.2026.108545","url":null,"abstract":"<div><div>To address the problem that dyes are difficult to be efficiently removed during the recycling process of used printed polyester fabrics, this study proposes a decolorization technology driven by ball milling and solvent extraction combined with ozone oxidation. N,N-dimethylacetamide was selected as the decolorizing agent. Combining the ball milling effect, it promotes the swelling of the amorphous region of polyester fibers, triggering structural slack, thereby enhancing the migration and extraction effect of the decolorizer on the dye. Under optimized process conditions (600 rpm, solid-to-liquid ratio of 1:14, and 5 h), a decolorization rate of 89.63 % and a whiteness value of 61.4 were achieved. Subsequently, ozone treatment under conditions of pH 7, 70°C, and 100 % concentration for 3 h was implemented to deeply remove the residual dye, ultimately improving the decolorization rate to 96.22 % and achieving a whiteness value of 69.7. Characterization results indicated that this process did not damage the crystalline structure of the polyester fibers, while also enabling the cyclic reuse of DMAc and dye, with the recovered dyed fabric attaining a color fastness level of 4. This method enables efficient and clean recycling of waste polyester fabrics through its mild conditions, green process, and potential for product upcycling.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108545"},"PeriodicalIF":7.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135209","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":"Defect engineering synergised with S-scheme heterojunction for the efficient reduction of carbon dioxide","authors":"Jie Gu ,&nbsp;Mingxia Tian ,&nbsp;Yuan Zhang ,&nbsp;Lili Huang ,&nbsp;Beibei Sun ,&nbsp;Yong Qin ,&nbsp;Jianhui Jiang","doi":"10.1016/j.psep.2026.108570","DOIUrl":"10.1016/j.psep.2026.108570","url":null,"abstract":"<div><div>Photocatalytic CO₂ reduction is essential for achieving carbon neutrality; however, its low efficiency remains a significant challenge. CO₂ photocatalytic performance can be enhanced through defect engineering and heterojunction construction. In this study, S-scheme Bi₄O₅Cl₂/g-C₃N₅ catalysts were successfully synthesised using a hydrothermal method. Following optimisation, the CO production rate under visible light illumination increased significantly to 57.2 μmol·g⁻¹·h⁻¹, representing improvements of 3.76 and 4.15 times compared with pristine Bi₄O₅Cl₂ and g-C₃N₅, respectively. Characterisation indicated that this superior performance can be attributed to the combined effects of defect engineering and the S-scheme heterojunction, with C–Cl bonds serving as electron transfer channels. This synergy significantly enhanced CO₂ adsorption and charge-carrier separation efficiency. Cycling tests demonstrated that the optimised catalysts exhibited excellent stability, maintaining catalytic activity after six consecutive cycles. In situ infrared spectroscopy revealed the formation pathway of the *COOH intermediate, confirming the reaction mechanism: CO₂ → *COOH → *CO → CO. This study provides a novel strategy to synergistically enhance CO₂ conversion efficiency through defect engineering and S-scheme heterojunction design.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108570"},"PeriodicalIF":7.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135196","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":"Fluid flow and CBM productivity-CO2 injectivity evaluations induced by injection pressure and reservoir condition: Implications for CO2-ECBM injection process and drainage degree","authors":"Zhonghui Wang ,&nbsp;Shoujian Peng ,&nbsp;Jiang Xu ,&nbsp;Li Jia ,&nbsp;Liang Cheng ,&nbsp;Jiaxuan Chen","doi":"10.1016/j.psep.2026.108564","DOIUrl":"10.1016/j.psep.2026.108564","url":null,"abstract":"<div><div>In order to study the key technology of CO₂ sequestration and enhanced coalbed methane recovery (CO₂-ECBM), a series of large-scale physical simulation experiments were conducted with varying CO₂ injection pressures <em>P</em>_in and original CH₄ pressures <em>P</em>_res. The fluid flow evolution of reservoir pressure, CH₄ recovery efficiency (<em>RE</em>), and CO₂ injectivity (<em>J</em>) were monitored and analyzed in real time. The fluid flow evolution indicates centrifugal flow near the injection well and centripetal flow toward the production well, and a larger <em>P</em>_in produces a stronger pressure gradient and more pronounced flow-state transformation. Increasing <em>P</em>_in accelerates CO₂ breakthrough and enhances CH₄ recovery increasing from 78.08 % to 90.30 % with the original CH₄ pressure 1.5 MPa. With <em>P</em>_in increasing from 1.5 to 2.5 MPa, CO₂ breakthrough was accelerated and <em>RE</em> increased from 78.08 % to 90.30 % at <em>P</em>_res of 1.5 MPa. Under <em>P</em>_in of 2.5 MPa, <em>RE</em> increased from 90.30 % to 96.70 % as <em>P</em>_res decreased from 1.5 to 0.5 MPa, indicating that a higher <em>P</em>in-<em>P</em>_res differential favors more complete CH₄ depletion. The paper evaluated CO₂ injectivity (<em>J</em>) quantitatively by the injection flow rate and reservoir pressure. The <em>J</em> exhibits a rise-decline-stabilization trend, indicating the evolving injection dynamics and pressure-driven behavior in the reservoir. While a lower <em>P</em>_res further boosts the early-stage injectivity. CO₂-ECBM is governed by a dynamic shift from replacement-dominated to displacement-dominated behavior, the time for replacement ratio to equal displacement ratio shortens from 50 to 36 min as <em>P</em>_in increases from 1.5 to 2.5 MPa. These results suggest that improving CO₂-ECBM performance requires both an appropriately elevated injection pressure and sufficient pre-drainage, and optimizing injection timing to extend the high-efficiency replacement stage is crucial for achieving synergistic CH₄ recovery and CO₂ injectivity.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108564"},"PeriodicalIF":7.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135208","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":"Multiscale modeling of venting behavior during thermal runaway propagation from battery module to energy storage container","authors":"Rongqi Peng ,&nbsp;Yihe Dong ,&nbsp;Ping Ping ,&nbsp;Depeng Kong ,&nbsp;Gongquan Wang ,&nbsp;Xu He ,&nbsp;Chaoshi Liu","doi":"10.1016/j.psep.2026.108563","DOIUrl":"10.1016/j.psep.2026.108563","url":null,"abstract":"<div><div>Thermal runaway (TR) of lithium-ion batteries is a safety concern in battery energy storage systems (BESS). High-temperature and flammable multiphase gases are released from TR cells. In many cases, these gases are not immediately ignited but can influence thermal runaway propagation (TRP) within a battery pack and pose fire or explosion risks after accumulating at the container level. Existing modeling studies address either the TRP within battery packs or flammable gas dispersion at the container level. However, a comprehensive model capable of evaluating both processes is still lacking. This gap limits risk analysis during TRP, given that vented gases generated during a TR inevitably propagate from the pack to the container. A multiscale modeling framework was developed by integrating a lumped TRP model of the battery pack with a three-dimensional CFD model for the BESS container. In the lumped model, an empirical correlation for venting-induced heat flux was incorporated, and the thermal response of the air layer above the module was modeled to capture preheating effects on adjacent cells. The venting conditions through the pressure-balancing valve of the battery pack were resolved in real time and provided to the CFD model to simulate flammable gas dispersion inside the container. Simulation results indicated that the effect of TR venting on triggering cell failures increased progressively with TRP evolution. The TR initiation location strongly affected system-level explosion risks, with a TR originating near the module center leading to faster propagation and more intensive venting. The vertical placement of the faulty pack was also identified as an influencing factor due to the accumulation of combustible gases near the container ceiling. This framework captured the full chain of TR venting events from the cell level to the system level and serves as a practical tool for assessing TRP dynamics and explosion hazards in BESS applications.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108563"},"PeriodicalIF":7.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135204","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":"Optimization and mechanistic analysis of guar gum fracturing fluid composition based on coalbed gas bioengineering","authors":"Yongxin Guan ,&nbsp;Hongyu Guo ,&nbsp;Hong Zhang ,&nbsp;Shuaishuai Xu ,&nbsp;Qinming Fan ,&nbsp;Haichao Wang ,&nbsp;Kuo Jian ,&nbsp;Zhaoying Chen ,&nbsp;Shufeng Zhao","doi":"10.1016/j.psep.2026.108565","DOIUrl":"10.1016/j.psep.2026.108565","url":null,"abstract":"<div><div>To achieve the synergistic application of coal seam permeability enhancement and coalbed gas bioengineering, this study employed an orthogonal design to optimize a guar gum-based fracturing fluid. The effects of the optimized fluid on methane production and coal matrix modification during anaerobic digestion were systematically evaluated. Results showed that methane yield by 19.11 % and the lag phase shortened to 2.40 days. Furthermore, it exhibited improved microbial degradability, meeting viscosity standards for effective gel breaking, while reducing coal wettability and minimizing core damage. Microbial action further degraded the coal structure. Dissolved organic matter during anaerobic digestion was primarily composed of aromatic protein-like substances, fulvic acid, and soluble microbial metabolites. The optimized composition enhanced the production rate of protein-like substances and substrate degradation capacity. The microbial community was dominated by hydrolytic and acidogenic bacteria such as <em>Proteiniphilum</em> and <em>Lascolabacillus</em>, with acetoclastic methanogen <em>Methanothrix</em>, while hydrogenotrophic <em>Methanoculleus</em> markedly increased. This metabolic shift was functionally supported by the upregulation of key genes involved in glycolysis, the Wood-Ljungdahl pathway, and CO₂-reducing methanogenesis pathways. This study offers experimental evidence for the application of guar gum fracturing fluids in biologically driven coalbed methane development.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108565"},"PeriodicalIF":7.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135202","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":"MOF-derived Pd@In2O3/NiO nanoflowers for high-selectivity hydrogen detection at room temperature","authors":"Peiyu Duan ,&nbsp;Haowen Wang ,&nbsp;Ying Liu ,&nbsp;Hongmin Zhou ,&nbsp;Jiamin Tian ,&nbsp;Kaiqiang Jin ,&nbsp;Qiangling Duan ,&nbsp;Qingsong Wang ,&nbsp;Jinhua Sun","doi":"10.1016/j.psep.2026.108560","DOIUrl":"10.1016/j.psep.2026.108560","url":null,"abstract":"<div><div>Due to the properties of large specific surface area and tunable pore structures, MOF-derived materials have been regarded as promising candidates in the field of gas sensing. In this work, MOF-derived Pd@In₂O₃/NiO materials were proposed for room-temperature hydrogen detection. The bimetallic In/Ni-MOF template with mesopores was successfully synthesized through one-step hydrothermal method. To further improve the sensing performance and selectivity toward hydrogen, Pd was selected as catalyst and loaded on the template under ultraviolet light. Especially, the large specific surface area of MOF-derived materials was maintained well after heat treatment, owing to the in-situ cation exchange of Ni^2 + and In³⁺ ions. MOF-derived Pd@In₂O₃/NiO possessed a large specific surface area of 473.63 m²/g with an average pore size of 8.72 nm, which facilitated the gas adsorption and diffusion process. Accordingly, the modified materials showed a significant improvement in hydrogen sensing performance. The mesoporous Pd@In₂O₃/NiO sensor exhibited a response of 3.53 toward 200 ppm H₂ at 25 ℃. The good stability, low detection limit (3.36 ppm) and favorable moisture resistance ability (S = 2.6, 200 ppm, 75 RH%) were also studied. Furthermore, the Pd@In₂O₃/NiO sensor exhibited high selectivity to H₂ against typical interfering flammable gases. The enhanced hydrogen sensing performance can be mainly attributed to the unique porous structures and the formation of the Schottky barrier at the material interfaces. This work provides a feasible solution to the room-temperature detection of hydrogen.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"209 ","pages":"Article 108560"},"PeriodicalIF":7.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135206","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}