COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Jiaxin Wang,Yingjian Wu,Ying Liu,Jun Liu,Baozhong Zhu,Yunlan Sun
Dichloromethane (DCM), a widely used industrial solvent, represents a primary anthropogenic source of chlorine-containing volatile organic compounds (Cl-VOCs). The adsorption of DCM is usually impeded by the irregular pore structure of commercial activated carbon. To address this limitation, this study developed Fe 3+ modified zeolite-templated carbons (ZTC) for DCM removal at ambient temperature. Comprehensive characterization through BET, XRD, Raman, SEM, TG/DTG, XPS, and NH 3 -TPD confirmed the uniform distribution of Fe 3+ within the ZTC pore channels and revealed its significant impact on surface functional groups and acid sites. The optimized 3 % Fe@ZTC adsorbent demonstrated markedly enhanced performance, achieving a DCM adsorption capacity of 227.9 mg·g −1 at 25 °C. Furthermore, it exhibited excellent regenerability, maintaining 70.2 % of its initial capacity after three regeneration cycles at 500 °C. Density Functional Theory (DFT) calculations provided mechanistic insights, showing that Fe 3+ modification substantially increased the adsorption energy from 0.90 eV on raw ZTC to 3.56 eV on Fe@ZTC. This enhancement was attributed to uniform Fe 3+ doping, which created hard acid sites that strongly interacted with the hard base site (Cl) of DCM molecules, facilitating Fe-Cl bond formation and substantial charge transfer. This work presents a viable strategy for developing efficient adsorbents for DCM removal from industrial waste gases.
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ELECTROCHIMICA ACTA
·
2024
·
IF 5.5
Shulin Li,Qiaoquan Lin,Han Yan,Qiaodong Li,Yu Yang,Xinlin Yan,Zhenyu Wang,Chuang Yu,Long Zhang
Cl-rich Li-argyrodites are one type of sulfide solid electrolytes (SSEs) with a high ionic conductivity and suitable mechanical properties for practical application. However, their tolerance against moisture in air and compatibility with metallic Li need further improvements. Here, we demonstrate that Nb-O dual-doping can be a good strategy for advanced Cl-rich Li-argyrodite SSEs, prepared by high energy ball milling and annealing method. Our results show that the Nb-O co-doping enhances the interface compatibility towards metallic Li and improves the moisture resistance, while maintains a fast ion transport. The Nb-O incorporation improves the Young's modulus and mitigates the side reaction of Li-argyrodite with Li. The doping-optimized sample demonstrates a high critical current density of 2.28 mA cm −2 and a long-term Li plating/stripping stability under a relatively high current density (1 mA cm −2 ) for nearly 3000 cycles. Notably, the corresponding all-solid-state lithium batteries (ASSLBs), using a Li metal electrode, can maintain a superior cycling stability for over 1000 cycles at 1 C.
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JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2021
·
IF 3.995
Chao Chen,Haijian Li,Zhao Qin,Changjian Wang,Yi Xu,Zhihua Sun,Siyu Xu,Jianhua Yi,Fengqi Zhao
Hexanitro complex K 2 Ba[Ni(NO 2 ) 6 ] was prepared via the co-precipitation method, and its composition and morphology were characterized by XRD , SEM , XPS and FT-IR techniques. The catalytic performances of K 2 Ba[Ni(NO 2 ) 6 ] for CL-20, FOX-7 and TKX-50 thermolysis were also discussed and studied by using DSC and TG-DTG-MS. After K 2 Ba[Ni(NO 2 ) 6 ] were mixed with CL-20, the activation energy ( E a ) of thermolysis reaction was increased, while the heat release was greatly improved, and the transformation from NH 3 to NO occurred. It is attributed to that the decomposition products of K 2 Ba[Ni(NO 2 ) 6 ] have strong effects on the oxidation of the radicals and the electrons transfer . Besides, the thermolysis E a of FOX-7 by addition of the K 2 Ba[Ni(NO 2 ) 6 ] was increased by 81.03 kJ mol −1 , and the heat release was greatly increased. In addition to that the two-step separate thermolysis processes of pure FOX-7 was almost replaced by a one-step exothermic reaction for the FOX-7/K 2 Ba[Ni(NO 2 ) 6 ] mixture, which was due to that Ni 2+ cations could effectively increase the activity of amino groups in the FOX-7 thermolysis process. Finally, K 2 Ba[Ni(NO 2 ) 6 ] scarcely has the thermolysis catalytic activity of TKX-50 owing to the influence of metal cations on the decomposition of the hydroxylamine . Furtherly, the characteristics of ignition and flame propagation on the three energetic mixtures were strongly correlated to their thermolysis pathway and mechanism. The comparative study on the effects of K 2 Ba[Ni(NO 2 ) 6 ] to the CL-20, FOX-7 and TKX-50 thermolysis and ignition showed that the hexanitro complex has great significance on promoting the heat release efficiency of solid propellants for future study.
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Inorganic Chemistry Frontiers
·
2022
·Vol. 9
·期 18
·4614-4623
·
IF 7.779
Feixiang Wang,Yun Yang,Congcong Jin,Shilie Pan
A new borate, Li6.58Na7.43Sr4(B9O18)(B12O24)Cl (LNSBOC), was successfully obtained via a spontaneous crystallization method in an open system. LNSBOC crystallizes in a hexagonal crystal system with the centrosymmetric space group of P63/m, with a = 9.3046(2) Å, c = 24.3239(7) Å and Z = 2. According to the statistics, the structure of LNSBOC is extraordinary not only because of the discovery of the novel fan-like fundamental building block B9O18, but also for the unprecedented coexistence of the largest two highly polymerized (number of B atoms more than six) isolated B–O clusters in the structure. A discussion about the cause of the rareness of borates containing two polymerized isolated B–O clusters was carried out by investigating previous research and extant compounds. Even more significantly, a strategy to design compounds/crystal structures containing two polymerized isolated B–O clusters is put forward in this work from the viewpoint of structures and elements. In addition, thermal analysis and infrared and UV–Vis–NIR diffuse reflectance spectroscopy were performed for the title compound.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Jiaxin Yao,Feng Gao,Yi Zhao,Yajie Tian,Xin Yu,Yanting Tang
Fabricating semiconductor photocatalysts with abundant oxygen vacancies and porous structures contributes to charge separation and surface photocatalytic degradation reactions. In this work, porous Cl-Nb 2 O 5-x nanostructures were synthesized via a calcination method using NbCl 5 as the niobium and chlorine sources to achieve efficient tetracycline degradation under visible-light irradiation. Porous Nb 2 O 5-x nanostructures were formed during the calcination process accompanied by the generation of oxygen vacancies. The obtained Cl-Nb 2 O 5-x samples demonstrated significantly enhanced photocatalytic performance compared to commercial Nb 2 O 5 . The synthesized Cl-Nb 2 O 5-x -450 sample exhibited the highest photocatalytic performance, achieving a maximal rate constant of 0.03093 min −1 , which markedly surpassed that of commercial Nb 2 O 5 . The remarkable enhancement in tetracycline degradation of the Cl-Nb 2 O 5-x photocatalysts was mainly attributed to the generation of oxygen vacancies and porous structures with large surface areas. Finally, the photodegradation pathways of tetracycline facilitated by the Cl-Nb 2 O 5-x photocatalysts and a plausible photocatalytic mechanism of the Cl-Nb 2 O 5-x photocatalysts were also investigated in this work.
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PubMed
高影响因子
LUMINESCENCE
·
2025
·Vol. 40
·期 4
·e70175
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IF 3
Jiaoyan Xie,Suqin Han
Folic acid (FA) is a crucial B vitamin for cell formation and maintenance, and its deficiency can lead to severe health disorders, highlighting the importance for accurate FA detection. Chemiluminescence (CL) provides a highly sensitive analytical approach, characterized by simple instrumentation, high accuracy, and low background interference. However, traditional CL techniques are often limited by weak signal intensity and poor robustness. This study presents a novel CL system using well-defined fluorescent Cl, S, N co-doped carbon dots (ClSN-CDs) integrated into the H 2 O 2 -KBrO 3 system. Under acidic conditions, the synergistic effect of H 2 O 2 and KBrO 3 induced ClSN-CDs to emit a strong CL signal, with the emitting species identified as excited-state ClSN-CDs. Trace amounts of FA significantly quenched the CL intensity of the ClSN-CDs-H 2 O 2 -KBrO 3 system, enabling rapid, sensitive, and selective FA detection. The system demonstrated a linear response to FA concentrations ranging from 0.02 to 1.0 μM, with a detection limit of 3.1 nM. Selectivity and recovery studies validated the system's robust analytical performance. Mechanistic investigations revealed that the CL reaction involved reactive oxygen species (ROS), and FA-mediated ROS consumption led to luminescence suppression.
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Environmental Science-Processes & Impacts
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2025
·
IF 3.9
Xiaomin Ren,Jianying Wang,Fenqing Zhao,Pingping Zhang,Huan He,Zhixiang Xu,Bin Huang,Xuejun Pan
Previous studies have indicated that 6:2 chlorinated polyfluoroalkyl ether sulfonate (6:2 Cl-PFAES), a substitute for perfluorooctane sulfonate (PFOS), caused disruptions in glucose metabolism, but its toxicological mechanisms remain unclear. Pancreatic β cells are responsible for regulating glucose metabolism. This study used mouse insulinoma β cells (β-TC-6) to study the toxic effects of 6:2 Cl-PFAES and elucidate its potential mechanisms. Through cell counting kit-8, trypan blue staining, and apoptosis assays, we found that 6:2 Cl-PFAES showed toxicity to β-TC-6 cells, even surpassing that of PFOS. Mechanistic studies demonstrated that 6:2 Cl-PFAES induced oxidative stress by ascendant levels of reactive oxygen species (ROS) and malondialdehyde (MDA), alongside increased superoxide dismutase (SOD) activity. The oxidative stress-inducing capability of 6:2 Cl-PFAES was stronger than PFOS. Co-exposure with N-acetyl-L-cysteine (NAC), as the ROS scavenger, which obviously reduced the degree of cell apoptosis and the production of ROS, highlighting oxidative stress as a crucial mechanism of 6:2 Cl-PFAES-induced cell death. Transcriptomic analysis further revealed that 6:2 Cl-PFAES affected genes association with the oxidative phosphorylation pathway, confirming the oxidative stress effect, and altered diabetes-related genes expression, suggesting a heightened risk of diabetes. This study provides insights into the toxicity of 6:2 Cl-PFAES on β cells and its potential risks on glucose metabolism disruption.
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PubMed
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2019
·
IF 3.375
Hao Zhang,Hanxiao Zheng,Ying Wang,Runhua Yan,Dingyuan Luo,Wei Jiang
Petal bismuth salt semiconductors are promising as visible-light-driven photocatalysts, but their short service times due to strong oxidation limit their application. In this research, the in situ construction of a p–n heterojunction, by growing BiOX on a KBiO3 surface, is used as a strategy to improve the performance and stability. Evaluation of the photocatalytic degradation of crystal violet and phenol shows that the KBiO3/BiOX (X = Cl, Br, I) heterostructures exhibit significant improvement in photocatalytic performance and stability compared to KBiO3. The best one, KBiO3/(5.85%) BiOI, shows 98% degradation of crystal violet within 20 min, and of phenol within 1.5 h. No significant performance decay can be detected after repeated use. The development of KBiO3/BiOX heterostructure improves the applicability of KBiO3 as an efficient visible-light-driven photocatalyst.
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Advanced Membranes
·
2025
·
IF 9.5
Wenlong Ding,Haoyu Liu,Jiayi Liao,Tongtong Wang,Dongze Li,Yu Xu,Shiyu Zhou,Zhiqiang Wu,Wenhui Shi,Jiangnan Shen,Junbin Liao
Construction of homogeneous polymer ion-exchange membranes (IEMs) with suitable ion transport channels and stable structures is crucial to the separation of mono-/multi-valent anions. Amphoteric ion-exchange membrane (AIEM) is a special type of IEM that possesses unique properties due to the presence of both anion exchange groups and cation exchange groups. In this work, we have grafted 1-bromoheptane and 3-bromopropanesulfonate onto the poly(aryl ether sulfone) chain through nucleophilic substitution reactions. Unlike the IEM attaching different ion-change functional groups onto one side-chain, this kind of AIEM bears two kinds of ion-change functional groups on dual side-chains. The results show that the as-prepared AIEMs could maintain low water absorption (< 20%) and swelling ratios (< 11%). The optimal surface area resistance is 6.31 Ω∙cm 2 . The perm-selectivity (Cl − /SO 4 2− ) of the optimized PAES-TA/BS-0.85 AIEMs in a binary mixed solution system at 2.5 mA∙cm 2 could be achieved as high as 67.46, which is much higher than commercial ACS IEMs under the same conditions. Small Angle X-ray scattering reveals a distinct phase separation pattern within the AIEM matrix, which is due to the introduction of sulfonates to increase the hydrophilicity of the side-chains. The combined effects of pore size screening and electrostatic repulsion render the high selectivity of as-prepared AIEMs.
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DESALINATION
·
2025
·
IF 9.8
Hailin Chang,Shilei Fu,Ziao Zhang,Yating Hu,Zijian Cui,Jun Ma,Kexin Hou,Xiaobin Tang,Guibai Li,Heng Liang
Nanofiltration (NF) membranes with efficient selectivity are critical for addressing water source pollution from toxic heavy metals and emerging micropollutants. Herein, we engineered a polyamide (PA) NF membrane with ambidextrous selectivity by leveraging the concentration-driven effect of piperazine (PIP) during interfacial polymerization (IP). This PIP concentration-driven effect was verified by modulating the PIP concentration gradient from low to high, which enhanced IP efficiency via both an intensified alkaline reaction environment and concentration-driven diffusion. The optimized NF membrane features an ultrafine pore size distribution and reduced electronegativity, exhibiting a remarkable shift from sole SO 4 2− /Cl − selectivity to impressive ambidextrous selectivity, encompassing both SO 4 2− /Cl − (α ≈ 48, 98.3 % for Na 2 SO 4 ) and Mg 2+ /Na + (α ≈ 37, 98.2 % for MgCl 2 ). Moreover, it membrane also achieved exceptional removal efficiencies of 94.8–98.9 % for heavy metals and 77.6–99.3 % for antibiotics, while maintaining a water permeability of 19.3 L/m 2 h bar and mitigating the perm-selectivity trade-off. When purifying surface water containing heavy metals and antibiotics, the optimized NF membrane exhibited superior multi-pollutant removal and improved water production quality compared to the NF270 and NF90 membranes, and especially with its water permeance increased by ~27 % to 179 %. Our work uncovers a fundamental correlation between the PIP concentration, IP reaction, PA nanostructures and NF performance, providing valuable insights into customizing high-performance NF membranes to address complex water pollution challenges.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2015
·
IF 2.587
Yujia Xie,Fengyong Zhang,Pingle Liu,Fang Hao,Hean Luo
Direct functionalization of saturated C–H bonds by metalloporphyrin catalysts is among the topical and challenging areas within the chemical industry and synthetic chemistry. In this work, supported CoD(p-Cl)PPCl metalloporphyrin catalysts were prepared and characterized. It has been found that the CoD(p-Cl)PPCl/ZnO catalyst shows better catalytic activity than the supported catalyst (ZrO2, MCM-41, kaolin, Zr(OH)2, and boehmite (BM)) in cyclohexane oxidation with dioxygen. The effects of the reaction pressure, reaction temperature, and reaction time on the catalytic activity were considered by the supported CoD(p-Cl)PPCl/ZnO catalyst. The CoD(p-Cl)PPCl/ZnO catalyst can be facilely recovered and was recycled up to seven times without a significant decrease in catalytic performance. The average cyclohexane conversion and selectivity to KA oil are 10.98% and 84.34%, respectively, and the turnover number is 2.10 × 107.
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Journal of Energy Storage
·
2026
·
IF 10.7
Dong Deng,Yuhan Li,Gang Liu,Xinmei Liu,Qianshi Wang,Hongfei Chen,Dongbo Wang,Mingyang Wu,Minghan Li,Fei Li,Yuewu Huang,Liancheng Zhao
BiOCl and its derivatives show considerable promise for supercapacitor applications because of their high theoretical specific capacity and rich redox activity. However, their practical performance is often limited by poor electrical conductivity and structural instability. To address these issues, we constructed a BiOCl/Bi₂₄O₃₁Cl₁₀ heterojunction to improve both charge transport and structural stability. A flake-like BiOCl precursor was first synthesized and then electrochemically treated at a constant current of 0.02 A over a wide pH range (1−13) to generate a BiOCl/Bi₂₄O₃₁Cl₁₀ heterojunction, denoted as BiOCl-1/24-X. By tuning the pH of the reaction system, pH-dependent formation of a reconstructed Bi₂₄O₃₁Cl₁₀ phase on the BiOCl surface was achieved, thereby strengthening the interfacial interaction between the two phases. This interfacial reconstruction process modulated the extent of heterointerface formation and the concentration of oxygen-vacancy-related defects, thereby promoting ion transport and charge-transfer kinetics. The results indicate that the sample treated at pH = 9 exhibits battery-type energy-storage behavior dominated by diffusion-controlled processes. Accordingly, it delivered a specific capacity of 411C·g −1 at 1·A g −1 , far exceeding that of pristine BiOCl (80C·g −1 ). Moreover, it retained 79.3% of its initial capacity after 10,000 cycles. It also achieved an energy density of 35.67 Wh·kg −1 at a power density of 923.83 W·kg −1 . In a practical demonstration, the BiOCl-1/24//AC device powered a 3.2 V LED for 900 s, highlighting its application potential. This work proposes a facile electrochemical interfacial reconstruction strategy for developing high-performance electrode materials, offering a simpler and more effective alternative to conventional chemical methods.
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