JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2014
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IF 2.063
Jianrong Li,Jinsheng Chen,Yanke Yu,Chi He
The Fe–Mn–Ce/CP catalyst prepared by the incipient-wetness impregnation method was investigated for elemental mercury (Hg 0 ) removal in simulated coal-fired flue gas . The incorporation of Fe could remarkably enhance the SO 2 -resistance of Fe–Mn–Ce/CP catalyst at low temperature, and the existence of water vapor had negative impact on Hg 0 removal efficiency. More than 95% of Hg 0 could be removed at 100 °C under the conditions of 60 ppm HCl, 3% O 2 ( v/v ), 5% H 2 O ( v/v ) and 400 ppm SO 2 . Hg-TPD results indicated that Hg 0 adsorption amount decreased after the addition of H 2 O or SO 2 . The XPS results revealed that the incorporation of Fe could enhance the contents of high valence Mn x + (i.e., Mn 3+ /Mn 4+ ) and Ce 3+ species in the composite catalysts, which are favorable for the oxidation process of elemental mercury. The surface characteristics were not the primary factor determining the catalytic activity . Overall, the catalytic performance of the Fe–Mn–Ce/CP catalyst was closely related to the Fe 3+ state, high ratios of (Mn 4+ + Mn 3+ )/Mn 2+ and high content of not fully coordinated cerium species.
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高影响因子
ACS Central Science
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2021
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IF 14.553
Yuan Ren,Wenhe Xie,Yanyan Li,Junhao Ma,Jichun Li,Yan Liu,Yidong Zou,Yonghui Deng
Mesoporous materials have been extensively studied for various applications due to their high specific surface areas and well-interconnected uniform nanopores. Great attention has been paid to synthesizing stable functional mesoporous metal oxides for catalysis, energy storage and conversion, chemical sensing, and so forth. Heteroatom doping and surface modification of metal oxides are typical routes to improve their performance. However, it still remains challenging to directly and conveniently synthesize mesoporous metal oxides with both a specific functionalized surface and heteroatom-doped framework. Here, we report a one-step multicomponent coassembly to synthesize Pt nanoparticle-decorated Si-doped WO3 nanowires interwoven into 3D mesoporous superstructures (Pt/Si-WO3 NWIMSs) by using amphiphilic poly(ethylene oxide)-block-polystyrene (PEO-b-PS), Keggin polyoxometalates (H4SiW12O40) and hydrophobic (1,5-cyclooctadiene)dimethylplatinum(II) as the as structure-directing agent, tungsten precursor and platinum source, respectively. The Pt/Si-WO3 NWIMSs exhibit a unique mesoporous structure consisting of 3D interwoven Si-doped WO3 nanowires with surfaces homogeneously decorated by Pt nanoparticles. Because of the highly porous structure, excellent transport of carriers in nanowires, and rich WO3/Pt active interfaces, the semiconductor gas sensors based on Pt/Si-WO3 NWIMSs show excellent sensing properties toward ethanol at low temperature (100 °C) with high sensitivity (S = 93 vs 50 ppm), low detection limit (0.5 ppm), fast response–recovery speed (17–7 s), excellent selectivity, and long-term stability.
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高影响因子
Greenhouse Gases-Science and Technology
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2021
·Vol. 12
·期 1
·189-199
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IF 2.013
Jian Liu,Chengdong Kong,Zhongxiao Zhang,Liu Yang
CO 2 removal is imperative in the sweetening of natural gas. In this work, a hybrid method combining membrane separation and chemical absorption is proposed and applied to test its performances in CH 4 refinement and CO 2 separation from natural gas. Specifically, the permeate stream from the membrane separation part was fed into the chemical absorption column. The retentate stream and the chemically scrubbed permeate stream were mixed to produce the final sweetened CH 4 . Parametric analysis indicates that the enriched CH 4 volume fraction increases with the growth of feed pressure, but it decreases as the gas flow rate increases. The CO 2 removal efficiency gets enhanced with the increment of feed pressure, gas temperature and monoethanolamine (MEA) concentration. Under an optimized condition with a feed pressure of 0.9 MPa, a gas flow rate of 40 L/min, a gas temperature of 45°C, a MEA concentration of 15%, and a MEA flow rate of 20 L/h, the high CH 4 volume fraction of 96.8%, 100% CH 4 recovery efficiency, and 80.4% CO 2 removal efficiency can be simultaneously achieved using the hybrid method. Compared with the membrane separation method, the hybrid method has higher CH 4 recovery efficiency and higher CH 4 volume fraction, which can meet the requirements of carbon capture utilization and storage (CCUS). Compared with the chemical absorption, the hybrid method consumes less MEA since a part of CO 2 can be separated by membrane separation. Therefore, the hybrid method is a promising technique for flexible CH 4 refinement and CO 2 separation in natural gas. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2021
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IF 7.46
Xiqi Chen,Jinyong Hu,Pei Chen,Mengqi Yin,Fanpu Meng,Yong Zhang
Transition metal dichalcogenides (TMDs) have blazed a novel trail in the field of NO 2 gas detection owing to the unique photoelectric properties and prospective gas sensing performance especially working at low operating temperature. However, the incomplete recoverability and susceptibility to humidity at room temperature restrict the practical applications of TMDs-based gas sensors. Herein, we demonstrate a fully recoverable WS 2 based gas sensor with enhanced anti-humidity ability by combining the decoration of zero-dimensional PbS nanoparticles and the assistance of UV light. Through the control over the molar ratio of WS 2 /PbS, the optimized WS 2 /PbS (the molar is 10:1) gas sensor exhibits a remarkable elevated recovery rate from 33.4% to 99.8% with almost no baseline drift as compared to that in the pure WS 2 gas sensor. More importantly, attributing to the irradiation of UV can accelerate the desorption of water molecules, WS 2 /PbS heterostructure based gas sensor manifests more stabilized anti-humidity performance with stable initial resistance and negligible response value drift (8.8%) in the range of 10%–90% relative humidity. Furthermore, UV-assisted WS 2 /PbS gas sensor also possesses prominent sensing performances including high sensitivity, low detection limit (∼20 ppb), favorable selectivity and outstanding long-term stability. This research will pave the way on designing high-performance TMDs-based gas sensors operating at room temperature.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Junfeng Sun,Yanyan Jiang,Xin Li,Jiaxian Li,Chao Liu,Na Li,Guoying Wang,Gaofeng Shi
High-performance gas sensors can be used to detect low-concentration volatile organic compounds (VOCs), toxic and explosive gases in the atmospheric environment, which is of great significance to environmental protection and human health. In this paper, In 2 O 3 @HCNFs gas sensing material with core-shell structure was successfully synthesized by coaxial electrospinning method , and a new room temperature O 3 sensor was developed with potassium ferrite superionic conductor (K 2 Fe 4 O 7 ) as solid electrolyte. The response test shows that the K 2 Fe 4 O 7 -In 2 O 3 @HCNFs sensor has the highest response value and the shortest response/recovery time for 180–420 ppb O 3 . The logarithmic fitting of the response value and the O 3 concentration shows that the sensor has a stronger sensitivity to O 3 . In addition, the K 2 Fe 4 O 7 -In 2 O 3 @HCNFs sensor has good repeatability and stability for O 3 . In the high humidity environment (90 %RH), the sensor still has a certain response value to O 3 , which proves the feasibility of the sensor under high humidity conditions. Additionally, the sensor has good selectivity for O 3 in the presence of other interfering substances. The excellent performance of K 2 Fe 4 O 7 -In 2 O 3 @HCNFs sensor was verified by analyzing the structural composition of gas sensing materials and the detection mechanism of the sensor. Therefore, compared with the traditional uniaxial electrospinning, the In 2 O 3 @HCNFs composite synthesized by coaxial electrospinning has excellent gas sensing properties, and the solid electrolyte gas sensor prepared by it has a good application prospect in the detection of ppb-level O 3 .
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高影响因子
EUROPEAN JOURNAL OF PHARMACOLOGY
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2026
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IF 5.7
Xinwen Dong,Zheng Luo,Cuiying Li,Jie Gao,Yue Ma,Xiaoran Ma,Jiahang Yang,Sanqiao Yao,Weidong Wu,Yichun Bai,Qunwei Zhang,Wenjie Ren
Gas explosion (GE) exposure led to significant neuropathology in rats. • GE induced JNK/p38 MAPK pathway activation, ferroptosis, and inflammation. • Sodium butyrate mitigated these effects by inhibiting JNK/p38 MAPK activation. This study investigated the neuroprotective effects of sodium butyrate (NaB) against gas explosion (GE)-induced traumatic brain injury (TBI), with particular emphasis on its modulation of ferroptosis. GE exposure was simulated using a shock tube in vivo and a shockwave therapy instrument in vitro . A comprehensive assessment was performed, including behavioral tests, histopathological examination, molecular analyses (c-Jun N-terminal kinase (JNK)/p38 mitogen-activated protein kinase (p38 MAPK), solute carrier family 7 member 11 (SLC7A11)/glutathione peroxidase 4 (GPX4), and interleukin-6 (IL-6)/interleukin-10 (IL-10)/tumor necrosis factor-α (TNF-α)), and in vitro validation using a CTX TNA2 rat astrocyte/H19-7 rat hippocampal neuron/GMI-R1 rat microglia (CTX/H19-7/GMI-R) tri-culture system. Pharmacological inhibition with SP600125 (a JNK inhibitor), SB203580 (a p38 MAPK inhibitor), and ferrostatin-1 (Fer-1, a ferroptosis inhibitor) was employed to confirm pathway involvement. GE exposure induced profound neuropathological changes, characterized by mitochondrial cristae disruption, inflammatory cell infiltration, and locomotor deficits. At the molecular level, GE exposure activated the JNK/p38 MAPK pathway (as evidenced by increased JNK and p38 phosphorylation), triggered ferroptosis (elevated Fe 2+ and malondialdehyde levels, with reduced GPX4 and SLC7A11 expression), and elicited a pro-inflammatory response (increased IL-6 and TNF-α, decreased IL-10). NaB administration effectively counteracted these deleterious effects by restoring redox homeostasis, suppressing JNK/p38 activation, and rebalancing inflammatory cytokine profiles. Notably, co-administration of pathway inhibitors potentiated the protective effects of NaB, further corroborating the involvement of JNK/p38 MAPK-mediated ferroptosis in GE-induced TBI. Collectively, these findings indicate that NaB attenuates GE-induced TBI and ferroptosis, likely through inhibition of the JNK/p38 MAPK signaling pathway. Download: Download high-res image (288KB) Download: Download full-size image
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高影响因子
Journal of Water Process Engineering
·
2026
·
IF 6.6
Kudakwashe Meki,Shiyu Meng,Zihao Liu,Zhuowen Wang,Baojian Jing,Huiqun Zhang,Peng Liu,Shan Qiu
DMS gradient improves micropore access and O₂ transport, reducing flooding. • CB-DV06 yields 750 mg L −1 H₂O₂ at >60% Electro-Fenton efficiency. • DMS-modified GDEs remove 85% RBB and reduce TOC 60% in 120 min. • Surface area reaches 222.9 m 2 /g; electroactive sites increase sixfold. • Dual-phase oxygen diffusion boosts ORR kinetics and degradation rate. Hydrogen peroxide (H₂O₂) electrosynthesis via the two-electron oxygen reduction reaction (2e − ORR) is critically dependent on the formation of stable and well-regulated triple-phase interfaces (TPIs), where gas, liquid, and catalyst converge. However, micropore flooding and uneven wettability in carbon-black gas diffusion electrodes (GDEs) often hinder oxygen transport and deactivate active sites. In this work, we address these challenges by introducing a dimethyl silicone oil (DMS) volume-gradient strategy to engineer confined TPIs within the carbon catalyst layer. Carbon-black GDEs were prepared using DMS volume-controlled of 0.4, 0.6, and 1.2 mL, with CB-DV06 identified as the optimum configuration. This design balances hydrophobicity and pore accessibility, promoting sustained oxygen diffusion and suppressing water blockage without impeding electron or ion transport. The optimized GDE (CB-DV06) achieved ~750 mg L −1 H₂O₂ after 180 min with current efficiencies exceeding 60% and enhanced electrochemically active surface area. To demonstrate the practical applicability of the in situ generated H₂O₂, Reactive Black B (RBB) degradation was employed as a model pollutant-removal reaction. The integrated system achieved approximately 85% RBB decolourisation, demonstrating the applicability of this interface-engineering strategy for pollutant-removal applications. Overall, this study highlights a low-impact approach for optimizing oxygen reduction environments in porous electrodes, advancing sustainable oxidant generation and environmental remediation. Download: Download high-res image (127KB) Download: Download full-size image
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高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
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2026
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IF 12.2
Fenghua Shen,Yu Zou,LeLe Liu,ZiXi Zhang,Xingyuan Yu,Chaolong Liu,Kaisong Xiang,Hui Liu
As a highly toxic heavy metal, the atmospheric thallium (Tl) emission from non-ferrous smelting has gained increasing attention, yet it still lacks a sufficient understanding of gaseous thallium purification through adsorption. Herein, we demonstrate for the first time that metal sulfides, including MoS2, CuS, and ZnS, are active in TlCl adsorption, wherein MoS2 exhibits the best activity. A crystal plane engineering strategy was proposed to fabricate the edge plane of MoS2, uncovering a critical law that the TlCl adsorption ability of MoS2 highly depends on the formation of edge sites. Edge-enriched MoS2 realizes a record TlCl adsorption capacity of 159.3 mg g–1 at 250 °C under a pure N2 atmosphere, which is two times higher than the current sorbents. Both Mo6+ and S22– are active centers for getting electrons from Tl+ and achieving the chemisorption of TlCl. Electron density difference analyses verify the stronger activity of edge Mo sites in withdrawing electrons from Tl+ than the basal S sites. MoS2 displays strong resistance to SO2 and H2O and can utilize O2 to generate Mo6+ species, which ensures its stability for TlCl adsorption under smelting gas. This work establishes metal sulfides as promising sorbents for gaseous Tl removal and introduces new insights into the design of high-performance sorbents for heavy metal control.
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PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·Vol. 14
·期 28
·12928-12941
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IF 7.6
Mehrizi Mohammad,Zhou Li,Lv Yuze,Zhang Yi,Gao Xiu,Zhang Zhenzhou,Liu Wenqi,Tu Weifeng,Han Yi-Fan
The reverse water-gas shift (RWGS) reaction is widely regarded as a platform reaction for the conversion of CO 2 into value-added products. In this study, Fe-based catalysts modified with Cu and K were systematically investigated to elucidate the roles of metal promoters in regulating RWGS performance. The results demonstrate that a K-promoted Fe–Cu(2/3)/Al 2 O 3 catalyst exhibits enhanced CO 2 conversion together with nearly 100% selectivity toward CO. A combination of ex situ and in situ characterization techniques reveals that the introduction of Cu can enhance CO 2 conversion by modifying the surface structure and redox properties of Fe species. Subsequent K promotion also alters the surface reaction pathway by favoring the carboxylate-related route while suppressing the accumulation of formate species, which further suppresses methane formation and improves CO selectivity. These findings highlight the critical role of Cu–K synergy in tuning catalyst structure and reaction pathways for efficient RWGS reactions.
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高影响因子
Journal of Water Process Engineering
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2026
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IF 6.6
Peng Yu,Lichao Deng,Zhiguo Wang,Chun Zhang,Qiongchao Wang,Wei Huang
The substantial accumulation of cadmium (Cd)-laden adsorbent waste poses significant ecological risks. Transforming this waste into value-added materials presents a promising strategy to mitigate environmental challenges. Herein, a facile method converts spent Cd-bearing alkali lignin biochar (Cd-enriched ALB) into cadmium oxide (CdO-W) via one-step calcination in air for the highly efficient removal of tetracycline hydrochloride (TCH). This approach addresses the challenge of safe disposal and resource recovery of spent Cd-laden biochar. By utilizing the biochar matrix as a dispersive template to inhibit nanoparticle agglomeration and the CO 2 released during its pyrolysis as a synergistic gaseous foaming and etching agent, a hierarchical porous structure with a high specific surface area is constructed. The resulting CdO-W exhibits a remarkable adsorption capacity of 1260 mg/g for TCH at pH 7, which is 55.9% higher than that of chemically synthesized CdO-S (808 mg/g). This superior performance is attributed to the unique synthesis route where the biochar matrix acts as a dispersive template to prevent CdCO 3 nanoparticle agglomeration, while the CO 2 released during its pyrolysis synergistically acts as a gaseous foaming agent and etchant. This process creates a hierarchical porous structure with a high specific surface area, exposing abundant active sites. Mechanistic investigations reveal that adsorption proceeds primarily through coordination complexation, hydrogen bonding, and electrostatic interactions. This work provides a feasible path for the resource utilization of Cd-rich hazardous waste and offers insights for designing cost-effective, high-performance functional materials from other spent heavy-metal adsorbents.
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高影响因子
ACS Applied Nano Materials
·
2026
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IF 5.8
Kongfu Ou,Jinju Zheng,Jialong Zhao,Kai Wang,Xuanming Qin,Weiyou Yang,Zhentao Du,Hui Fu
Nontoxic CuGaS2 (CGS) quantum dots (QDs) are promising for next-generation displays due to their unique optical properties. However, their wide photoluminescence (PL) full width at half-maximum (FWHM), arising from intraband defect-state-mediated radiative recombination, hinders compliance with the narrow bandwidth requirements for ultrahigh-definition displays. Herein, we introduce a Ga2S3 (GaS) interlayer strategy via a hot-injection method to mitigate lattice mismatch and interface strains between the CGS core and the ZnS shell. Precisely controlling the GaS shell thickness further promotes structural ordering and suppresses sulfur vacancies (VS), thereby reducing nonradiative recombination and enhancing near-band-edge emission. Under optimized conditions, the as-prepared CGS/GaS/ZnS QDs exhibit narrow-band blue emission with a PL quantum yield (QY) of 44% and an FWHM of 24 nm, which is the narrowest value reported to date for Cu-based QDs. As integrated into solid-state light-emitting diode (LED) devices, the QDs yield narrow emission under various operating currents and demonstrate excellent operational stability. These findings highlight the critical role of multishell structures in controlling the defect states and lattice strain in CGS-based QDs, offering a design strategy for next-generation display materials demanding high color purity.
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高影响因子
ANALYTICAL CHEMISTRY
·
2026
·
IF 7.3
Peiran Song,Huaiwen Cang,Zhihao Zhang,Linlin Jiang,Tianmin Guan,Yong Luan,Weiguo Wang,Wei Huang,Lei Hua,Haiyang Li
Photoionization ion mobility spectrometry (PIMS) hyphenated with gas chromatography (GC) exhibits outstanding selectivity and high sensitivity in the detection of trace volatile organic compounds (VOCs). Its analytical performance is considerably affected by the interface between the GC and the ionization chamber of the PIMS. The sensitivity of the PIMS is reliant on the overlap of photoionization optical fields with the effluent from the GC, which is also affected by the gas flow in the ion mobility spectrometer. In this work, a computational model based on multiphysics dynamic convolution has been developed to evaluate the spatial concentration distribution of sample gas on the photoionization yield of PIMS. The simulation results indicate that lateral injection of GC capillary column into the gas flow of the ion mobility spectrometer could enhance the sensitivity by increasing the overlap of effluent and the VUV light in the ionization region of PIMS. The optimal capillary insert depth was increased when decreasing the carrier gas flow rate, which was confirmed by numerical simulations and experimental measurements. The optimal insert depth was 7.5 mm (the central axis of the ionization source) under conditions of a carrier gas flow rate of 15 mL·min–1, the limit of detection for aromatic compounds was reached 2.5 ppbv, achieving a 4-fold improvement of sensitivity over zero insertion. The GC-PIMS was tested to assess the VOCs emissions from spray-coated surfaces, and trace levels of toluene (45 μg·m–3) and xylene (60 μg·m–3) were still detectable even 14 days later, which highlights the potential of the GC-PIMS apparatus for monitoring trace environmental pollutants.
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