CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Kaicheng Yao,Haoqiang Zhang,Rongze Ma,Yanni Lang,Dan Wu,Liang Xu,Aning Ma,Yongjin Li,Dacheng Zhou,Zhiguo Song,Yugeng Wen,Yong Yang,Jin Han,Jianbei Qiu
Upconversion luminescence (UCL) of chiral inorganic nanostructured composite material and their applications have been challenging. This paper reports a successful preparation of Er 3+ /Yb 3+ co-doped chiral inorganic nanostructured BiOCl/Zn composite material (D-BYE-Zn) using a hydrothermal method and subsequent air annealing. The D-BYE-Zn phosphor significantly increased the intensity of UCL compared with the Er 3+ , Yb 3+ co-doped achiral bismuth oxychloride phosphor (A-BYE) and chiral bismuth oxychloride phosphor (D-BYE). Our study suggests that free electron leaps from the Zn fraction onto BiOCl may be responsible for the enhanced UCL. In addition, the temperature sensitive behavior of the D-BYE-Zn phosphor has been evaluated using the thermally coupled levels (TCLs) and non-thermally coupled levels (NTCLs) of Er 3+ and the maximum relative sensitivities (S R ) obtained are 0.95 % K −1 and 1.65 %K −1 (323 K). Our work provides a new strategy for constructing rare-earth doped chiral inorganic nanostructured composite materials to realize UCL enhancement while promising a wide range of applications in light source temperature measurement.
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高影响因子
Sustainable Materials and Technologies
·
2025
·
IF 9.2
Xianjin Qi,Guizhi Yan,Boyu Du,Mengmeng Wang,Yongkui Li
Arsenic (As) contamination is a global problem that requires innovative remediation, this study successfully synthesized a novel MnFe 2 O 4 -Zn/Co ZIFs@MIL-53(Fe) (MFZM) using a solvent method to remove As(V) from contaminated water. The MFZM exhibited a rhomboidal dodecahedron structure with a high specific surface area of 158.93 m 2 /g, which contributed to its exceptional adsorption performance under both acidic and neutral pH conditions. Notably, the adsorption capacity for As(V) reached approximately 599.90 mg/g at an equilibrium concentration of 500 mg/L, surpassing the performance of several previously reported adsorbents. The kinetic modelling results indicated that the adsorption process followed a pseudo-second-order mechanism, suggesting chemisorption as the dominant process. However, the isotherm studies demonstrate favorable single-layer adsorption, with the Langmuir model providing the best fit for the experimental data. The X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS) analysis revealed that the Fe/Mn/Co on the MFZM surface can hydrolyze and generate Fe/Mn/Co-OH groups under pH conditions ranging from 3 to 7, facilitating the formation of stable coordination complexes with As(V). Furthermore, the MFZM provided abundant positively charged adsorption sites that effectively attracted HAsO 4 2− via electrostatic interactions, leading to efficient As(V) removal. These findings underscore the potential of the MFZM as a promising adsorbent for the effective remediation of As-contaminated wastewater, supporting sustainable environmental management.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Ying Jiang,Wanting Wang,Guichun Luo,Yungui Li,Yapeng Dong,Xiuyuan Zuo,Hai Liang
ZIF-8-decorated biochar hold great potential for heavy metal contaminated wastewater remediation due to the superior adsorption performance of ZIF-8. However, the inevitable blockage of nature pore during preparation restricted the enhancement of adsorption performance and further practical applications. Herein, a novel Zn(NO 3 ) 2 activation-combined in-situ growth strategy was established for porous ZIF-8-decorated biochar (AI-BC@ZIF-8) preparation, this strategy enables the synergistic promotion of porous structure and distribution of ZIF-8 for adsorbent. The AI-BC@ZIF-8 exhibited an excellent adsorption capacity of 249.63 mg/g for Pb, achieving removal efficiency of 99.8% for conventional 50 mg/L Pb-containing wastewater. The adsorption process conforms to the pseudo-second-order kinetic model and the Langmuir isothermal model, indicating the monolayer chemical adsorption mechanism. The results of FTIR, BET and XPS analyses indicate that the adsorption mechanism of AI-BC@ZIF-8 is electrostatic interaction, N-coordination, precipitation, ion-exchange and pore-filling. Overall, this adsorbent demonstrates outstanding adsorption performance, showing its great potential in efficient and low-cost water purification. This work provides a viable strategy for the synthesis of highly porous and efficient ZIF-8-decorated biochar for heavy metal removal from wastewater.
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高影响因子
FUEL
·
2026
·
IF 7.8
Pengcheng Qi,Zhenhao Xiao,Wenjing Song,Jiawei Xia,Weizuo Li,Xinmin Li,Guangyu He,Dafang He,Haiqun Chen
The escalating atmospheric CO 2 concentration necessitates its conversion into highvalue- added products like cyclic carbonates, yet existing catalysts face challenges such as poor recoverability (homogeneous ionic liquids, ILs) and insufficient activity (monometallic metal–organic frameworks, MOFs). To address this, a series of bimetallic Ni x /Zn 1-x -PTA MOFs with different Ni/Zn molar ratios were synthesized via a solvothermal method, and then composite catalysts (Ni x /Zn 1-x -PTA@Mim-6) were prepared by impregnating the MOFs with Mim-6 ILs. This work provides a promising approach for efficient and sustainable CO 2 capture and conversion by integrating the advantages of bimetallic MOFs (high porosity, recyclability) and ILs (high catalytic activity). Characterizations via FT-IR, XRD, TEM, STEM-EDS, and TGA confirmed the successful synthesis, well-defined structure (e.g., nanoflower-like morphology of Ni 0.2 /Zn 0.8 -PTA MOFs), homogeneous elemental distribution, and good thermal stability of the composites. Catalytic tests showed that Ni 0.2 /Zn 0.8 -PTA@Mim-6 exhibited optimal performance: under solvent-free and co-catalyst-free mild conditions, the yield and selectivity of styrene carbonate both exceeded 99%, which was significantly superior to monometallic Ni-PTA@Mim-6 (46% yield) and Ni 0.2 /Zn 0.8 - PTA MOFs with co-catalyst (76% efficiency). The catalyst also demonstrated excellent recyclability (no significant activity loss after 5 cycles, conversion 69% and selectivity 99%) and universality for various epoxides (e.g., high yields for 1,2-butylene oxide and epichlorohydrin). Mechanistic studies revealed that the synergistic effect of multiple active sites—Lewis acid sites (unsaturated Ni/Zn) for epoxide activation, Lewis base sites (O in Ni-O/Zn-O) for CO 2 activation, and Br - from Mim-6 for ring opening—lowered the reaction energy barrier (activation energy 35.80 kJ/mol) and enhanced catalytic efficiency.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 7.7
Yan Jiang,Yuying Xin,Hui Zhao,Xianfa Zhang,Ping Wang,Rui Gao,Yingming Xu,Shan Gao,Xiaoli Cheng,Lihua Huo
The reasonable design and preparation of high-performance sensing materials for detecting NO 2 is of importance to environmental conservation and public health. Herein, porous Zn-doped In 2 O 3 microtubes were fabricated by simple Zn(NO 3 ) 2 solution etching of In-MOF microrods, followed by calcination at 500 ℃ in air. The experiment has confirmed that appropriate amount of Zn introduced into In 2 O 3 can optimize electronic structure, increase the number of oxygen vacancy and efficiently improve NO 2 sensing property. In particular, compared with pristine In 2 O 3 , Zn-In 2 O 3 sensor exhibits excellent selectivity, high response, fast recovery speed (32 s) and lower limit of detection (LOD, 20 ppb) at room temperature. Meanwhile, the Zn-In 2 O 3 sensor also presents outstanding reproducibility, stability and humidity resistance. The excellent gas sensing property is traced to the construction of the hollow and porous structure and the synergistic optimization of Zn doping. This endeavor yields a simple strategy for the design of high-property gas sensing materials.
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高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 7.9
Yiran Liu,Hanling Guo,Ruyi Jing,Enhui Zhang,Fengxian Gao,Min Gong,Xiang Lin,Liang Zhang,Dongrui Wang
Rechargeable aqueous Zn||MnO 2 batteries using near-neutral electrolytes have attracted considerable interest owing to their environmental benignity and high safety. However, MnO 2 cathodes with high mass loading suffer from sluggish reaction kinetics and structural degradation during long-term cycling, particularly under low-current-density conditions. Limited ion diffusion in thick electrodes results in capacity fading, while slow proton intercalation aggravates irreversible phase transitions, leading to active material dissolution and rapid capacity loss. To address these challenges, we propose a dual-modification strategy involving Ce doping and reduced graphene oxide (rGO) coating. The charge compensation effect induced by Ce doping increases the Mn 3+ /Mn 4+ ratio in MnO 2 from 0.36 to 0.61, effectively optimizing the electronic structure and improving lattice stability. Meanwhile, the constructed three-dimensional rGO conductive network reduces interfacial charge-transfer resistance and alleviates volume strain during cycling. Benefiting from this synergistic effect, the composite cathode achieves an areal capacity of 2.05 mAh cm −2 at 0.1C and retains 77.8 % of its initial capacity over 507 cycles at 2 C. This work offers a novel synergistic strategy for designing high-mass-loading cathodes and advances the practical implementation of Zn||MnO 2 batteries in grid-scale energy storage.
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高影响因子
FUEL
·
2026
·
IF 7.5
Xiaolong Li,Bibo Li,Guorong Lei,Mingcheng Ge,Liu Deng,Jianguo Zhang,Zhimin Li
A 2D coordination polymer [Zn(ATRZ) 2 (H 2 O) 2 ](ATRZ)(CBH) 2 ·2H 2 O, ( ZAC ) was constructed using 4,4′-azobis-1,2,4-triazole (ATRZ) as the linker, Zn 2+ as the node, and active cyanoborohydride (CBH) as the dissociative anion. Its crystal structure and properties were characterized by X-ray diffraction (XRD), differential scanning calorimetry-thermogravimetry (DSC-TG), oxygen bomb calorimetry, and mechanical sensitivity measurements (X-ray density: 1.548 g·cm −3 ; thermal decomposition temperature, T d : 179.14 °C; specific energy, E g : 15.76 kJ·g −1 ; energy density, E v : 24.40 kJ·cm −3 ; impact sensitivity, IS: 30 J; friction sensitivity, FS: 288 N). ZAC is characterized by a unique 2D polymer stabilized by the coordination of Zn 2+ with linker ATRZ and aqua ligands, while free ATRZ, CBH anion and crystal water are packed in the polymer. The combustion performance of ZAC /KClO 4 ( ZACK ) composite was evaluated in detail (Heat of combustion: 5.25 kJ·g −1 ; peak pressure: 3.23 MPa; response time: 11.07 ms; linear burning rate: 124.6 mm·s −1 ). Improved performance relative to conventional BPN (B/KNO 3 ) was observed, highlighting its potential for energetic materials applications.
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高影响因子
International Journal of Electrochemical Science
·
2023
·Vol. 13
·期 2
·1423-1440
·
IF 1.5
Ruizhuo Ouyang,Lina Xu,Haifeng Wen,Penghui Cao,Pengpeng Jia,Tian Lei,Xia Zhou,Mei Tie,Xiaolei Fu,Yuefeng Zhao,Haizhou Chang,Yuqing Miao
A novel indium doped bismuth hybrid nanofilm was prepared on a glassy carbon electrode (Bi@In/GCE) and successfully used for the simultaneous measurements of aqueous zinc (Zn(II)), cadmium (Cd(II)) and lead (Pb(II)). The Bi@In hybrid nanofilm was greatly improved in the ability of electron transfer, surface morphology as well as hydrophilicity over single Bi or In film, and exhibited well-defined and separate peaks for Zn(II), Cd(II) and Pb(II) by square wave stripping voltammetry. Analytical characteristics of the developed Bi@In/GCE were explored by comparing with single Bi and In film modified electrodes with calibration curves, which exhibited the most preferable electrochemical behaviors toward three metals as predicted. The synergistic effect of Bi and In mainly contributed to the enhanced electrochemical activity of the new electrode. In the concentration range of 0-120 µg L -1 , a good linear relationship was achieved between the peak current and the metal concentration with correlation coefficient higher than 0.995. The detection limits were calculated to be 0.52, 0.15 and 0.67 µg L -1 for Zn(II), Cd(II) and Pb(II) (S/N=3), respectively. The analysis of river sample with Bi@In/GCE was performed with satisfactory recoveries higher than 98%, suggesting that the new method is promising as a simple, sensitive and efficient approach to detect the heavy metals in water samples.
研究领域:
分析化学
·
环境监测
·
电化学传感
·
纳米材料
·
水污染检测
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高影响因子
Journal of Inorganic and Organometallic Polymers and Materials
·
2013
·Vol. 23
·期 6
·1492-1500
·
IF 1.174
Zhang Nan,Fan Yu-Hua,Bi Cai-Feng,Zhang Xia,Zhang Peng-Fei,Zhang Zhong-Yu,Li Xin
Three novel transition metal coordination polymers, [Ni(C 18 H 16 N 3 O 2 ) 2 ·2CH 3 OH]
n
( 1 ), [Zn(C 18 H 16 N 3 O 2 ) 2 ·4CH 3 OH]
n
( 2 ) and [Cd(C 18 H 16 N 3 O 2 ) 2 ·2CH 3 OH]
n
( 3 ) (C 18 H 16 N 3 O 2 =2-acetylpyridine- d -tryptophan) were synthesized and characterized by elemental analysis, IR, UV, 1 H NMR and X-ray diffraction single crystal analysis. The analyses of the structures indicate that all three materials crystallize in the tetragonal crystal system, space group P 4 1 2 1 2. They have similar structures; i.e., the Schiff base coordinates in its deprotonated form and behaves as a hexadentate (4N+2O) coordinated ligand to form a distorted octahedron geometry. On the other hand, as a result of the alternate arrangement of chains through N–H···O intermolecular hydrogen bonds interactions, 2-D layers are formed for the three complexes. Furthermore, the luminescent properties and thermal stabilities of the three complexes were investigated.
研究领域:
无机化学
·
配位化学
·
材料化学
·
晶体工程
·
光物理化学
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高影响因子
Journal of Energy Chemistry
·
2019
·
IF 5.162
Bo Lv,Sha Zeng,Wei Yang,Jian Qiao,Chao Zhang,Chengfeng Zhu,Minghai Chen,Jiangtao Di,Qingwen Li
Recently, the development of high-performance bifunctional oxygen catalysts integrated with flexible conductive scaffolds for rechargeable metal-air batteries has attracted considerable interest, driving by fast-growing wearable electronics . Herein, we report a flexible bifunctional oxygen catalyst thin film consisting of Co–N–C bifunctional catalysts embedding in carbon nanotube (CNT) networks. The catalyst is readily prepared by pyrolysis of cobalt-based zeolitic imidazolate frameworks (ZIF-67) that are in-situ synthesized in CNT networks. Such catalyst film demonstrates very high catalytic activities for oxygen reduction (onset potential: 0.91 V, and half-wave potential: 0.87 V vs. RHE) and oxygen evolution (10 mA cm −2 at 1.58 V) reactions, high methanol tolerance property, and long-term stability (97% current retention). Moreover, our integrated catalyst film shows very good structure flexibility and robustness. Based on the obtained film air electrodes, flexible Zn–air batteries demonstrate low charging and discharging overpotentials (0.82 V at 1 mA cm −1 ) and excellent structure stability in the bending tests . These results indicate that presently reported catalyst films are potential air electrodes for flexible metal–air batteries.
研究领域:
材料科学
·
电化学
·
纳米能源
·
先进功能材料
·
可再生能源
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Wenlu Yang,Jianing Guo,Jingyuan Ma,Na Wu,Jun Xiao,Mingxing Wu
Developing low-cost, high-efficiency and durable trifunctional electrocatalysts for enhancing the speed of oxygen reduction, oxygen evolution and hydrogen evolution reactions (ORR, OER and HER) is critical for expanding the industrial production and the commercial application of rechargeable Zn-air batteries and water electrolysis, but it still exists as a tremendous challenge. Herein, FeCo nanoalloys embedded into N-doped carbon nanofibers was prepared as a superior trifunctional catalyst for ORR, OER and HER by a universal and facile method. Under the synergistic effect of FeCo nanoalloys and N-doped carbon nanofibers , the Fe, Co/N-C catalyst exhibits half-wave potential of 0.86 V for ORR, and overpotentials of 388 mV and 249 mV at 10 mA·cm −2 for OER and HER, respectively. What’s more, the Zn-air battery based on Fe, Co/N-C catalyst displayed a considerable open-circuit voltage of 1.5 V and a continuous cycle life span of 210 h. Moreover, this catalyst was also used as the sole catalyst in overall water splitting to show excellent performance. This work provides an effective way to design efficient and durable multifunctional electrocatalysts, which will facilitate the development of high-performance multifunctional catalysts and their application in renewable energy applications.
研究领域:
材料科学
·
电化学
·
能源存储与转换
·
纳米技术
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Dan Wang,Yankun Wei,Xiaosong Li,Jinxiang Chou,Yukai Chen,Xiaojiao Du,Wenchang Wang,Naotoshi Mitsuzaki,Zhidong Chen
The construction of edge-hosted Fe N sites presents a promising way to boost catalytic performance of typical Fe N sites for the oxygen reduction reaction (ORR). However, the controllable synthesis of densely accessible edge-hosted Fe N sites remains challenging. Herein, an oxalate anion-assisted strategy is developed for precise preparation of densely edge-hosted Fe N 4 atomic sites for ORR. The strong coordination between oxalate anions and Fe 3+ ions facilitates the formation of dense edge-hosted Fe N 4 atomic sites. The subsequent decomposition of oxalate anions creates a hierarchically porous structure. Remarkably, the obtained e -FeNC exhibits improved ORR activity in acidic (0.79 V) and alkaline (0.89 V) electrolytes, a higher site density (SD), and an enhanced turnover frequency (TOF, 3.71 s −1 ). Density functional theory calculations reveal that edge FeNC sites exhibit a lower energy barrier for ORR than center FeNC sites. The downward shift of the d-band center weakens the adsorption of ORR intermediates, accounting for the high intrinsic activity of edge FeNC sites. Additionally, the assembled Zn-air battery displays a high specific capacity of 781 mAh g −1 , a large energy density of 999 Wh kg Zn −1 , and outstanding cycling performance over 550 h with minimal voltage gap of 0.84 V.
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）