JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Yilin Wu,Wendong Xing,Junzhi Yan,Jiuyun Cui,Faguang Ma,Jia Gao,Jian Lu,Chao Yu,Ming Yan
In spite of the intense efforts in selective separation field, the utilization and preparation of membrane-associated molecularly imprinted membranes with both enhanced rebinding capacities and high permselectivity performance still remain strong challenges. Herein, the bioinspired PDA-modified porous regenerated cellulose membrane (pRCMs) with mineral-coated multilevel structure was first proposed for the preparation of PDA/CaCO 3 -based imprinted nanocomposite membranes (PCIMs), m-cresol was chosen as the template molecule. Importantly, this bioinspired methodology was redeveloped and optimized to obtain abundant and uniformly distributed CaCO 3 nanocomposite on the surfaces of PDA@pRCMs. The as-designed sandwich-like imprinting structure were then constructed on PDA/CaCO 3 -based surfaces by developing a simple sol-gel imprinting process. Attributing to the design of the uniform CaCO 3 /PDA@pRCMs surfaces, amount of m-cresol-imprinted sites and permeation selectivity could be both optimized, it was no surprise that more excellent rebinding capacity (97.4 mg g −1 ), fast adsorption kinetics and high permselectivity coefficients (more than 13) were successfully achieved. Importantly, the whole synthesis process was conducted without complicated procedures and polluting the environment. Finally, the experimental results mentioned above, together with the green synthesis processes strongly demonstrated that our synthesis methodology of PCIMs had great potential for applications in various fields of selective separation, chemical industry, environment, biological medicine and so on.
研究领域:
材料科学
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环境科学
·
化学工程
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DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 57
·46146-46157
·
IF 3.84
Yilin Wu,Jiuyun Cui,Minjia Meng,Ming Yan,Yongsheng Yan,Chunxiang Li
Nanocomposite membranes with specific recognition, durability and regeneration ability that can rapidly adsorb and separate target compounds have remarkable technological applications for areas ranging from solid-phase extraction devices to architecture. In this work, inspired by the highly bioadhesive performance of mussel protein, urgently desired molecularly imprinted nanocomposite membranes (MINCMs) were prepared by developing a simple “bio-glue” imprinted strategy. By simply immersing the “bio-glue” m-cresol-imprinted PDA@SiO2 into casting solution accompanied by persistently mechanically stirring, a highly bio-adhered and homo-dispersedly distributed structure could be generated into MINCMs during a phase inversion process, which directed the higher perm-selectivity and reusability. Additionally, due to the unique properties of PDA modified layers and SiO2 nanoparticles (high surface-to-volume ratio and large surface area), the as-prepared MINCMs not only exhibited rapid adsorption dynamics, but also possessed an excellent separation performance of template molecule (m-cresol in this work). The excellent separation (perm-selectivity factor is 3.477) and recognition behavior (imprinted factor is more than 3.0) along with the low preparation consumed and green, quick, facile synthesis conditions make the as-prepared MINCMs attractive in broad technological applications for areas ranging from drug delivery to bioseparation.
研究领域:
材料科学
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生物医学工程
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环境科学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2022
·Vol. 23
·期 19
·11049
·
IF 6.208
Lin-Lin Zhou,Wen-Xiong Li,Hai-Bo Zhao,Bin Zhao
To compare the different actions of the two representative transition metal cations of Co2+and Ni2+in layered double hydroxides (LDHs), CoAl-LDH and NiAl-LDH intercalated with CO32−were synthesized, and the chemical structures, microstructures, and surface areas thereof were successfully characterized. Then, the two LDHs were utilized as flame retardants and smoke suppressants for silicone foam (SiF). The densities, flame retardancy, smoke suppression, thermal stabilities, and compressive strengths of the two SiF/LDHs nanocomposites were investigated. The introduction of LDHs slightly decreased the density of SiF due to the catalytic actions of Co and Ni during the foaming process of SiF. With respect to the flame retardancy, the addition of only 1 phr of either CoAl-LDH or NiAl-LDH could effectively improve the limiting oxygen index of SiF from 28.7 to 29.6%. Based on the results of vertical flame testing and a cone calorimeter test, the flame retardancy and fire safety of the SiF were effectively enhanced by the incorporation of LDHs. In addition, owing to the good catalytic action and large specific surface area (NiAl-LDH: 174.57 m2g−1; CoAl-LDH: 51.47 m2g−1), NiAl-LDH revealed higher efficiencies of flame retardancy and smoke suppression than those of CoAl-LDH. According to the results of energy-dispersive X-ray spectroscopy, Co and Ni participated in the formation of protective char layers, which inhibited the release of SiO2into the gas phase. Finally, the influences on the thermal decomposition and compressive strength for SiF resulting from the addition of LDHs are discussed.Keywords:silicone foam;layered double hydroxides;transition metal;flame retardancy;smoke suppression
研究领域:
材料科学
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化学工程
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DOI
PubMed
高影响因子
KOREAN JOURNAL OF CHEMICAL ENGINEERING
·
2017
·Vol. 34
·期 12
·3132-3141
·
IF 2.007
Zhang Wei,Li Xin,Wang Hong,Song Yongji,Zhang Shenghong,Li Cuiqing
Deep desulfurization of model oil by photocatalytic air oxidation and adsorption using Ti (1− x ) M
x
O 2 (M=Zr, Ce) was investigated. Ti (1− x ) M
x
O 2 (M=Zr, Ce) was prepared by urea gelation/co-precipitation method, and characterized by N 2 adsorption, XRD and UV-vis spectra. UV irradiation greatly enhanced the adsorptive capacity and selectivity of TiO 2 -ZrO 2 for organosulfur in model oil because organosulfur compounds were first photocatalytically oxidized to sulfoxides and sulfones over TiO 2 -ZrO 2 , which were then selectively adsorbed on the bifunctional material due to much higher polarities of generated sulfoxides and sulfones. The Ti/Zr molar ratio and calcination temperature were optimized to 5 : 5 and 500 °C with the sulfur removal of 99.6% after reaction for 2 h under UV irradiation. After adding 25 wt% toluene into model oil, the sulfur removal could still reach 97.2% after reaction for 7 h. TiO 2 -ZrO 2 could be well regenrated by washing with acetonitrile followed by thermal treatment in air.
研究领域:
化学工程
·
环境科学
✓ 已验证
DOI
高影响因子
DALTON TRANSACTIONS
·
2026
·
IF 3.3
Yang Pan,Cong-Min Fan,Tiancheng Feng,Haoyang Peng,Xiaolian Xu,guiqi gao
The slow kinetics of the oxygen evolution reaction hinders the efficiency of water decomposition, so it is crucial to develop noble metal-free electrocatalysts for the efficient decomposition of water via oxygen evolution reaction (OER) in alkaline electrolytes. In this study, flower-like structured hydroxides grown in situ consisting of ultrathin nanosheets stacked on Fe Foam (FF) were prepared by a one-step hydrothermal method for efficient electrocatalytic oxygen evolution reaction. M(OH)(OCH 3 ) (M=Co, Cu) requires only a low overpotential of 270 mV and 379 mV of the OER, to provide 20 mA⋅cm -2 and 100 mA⋅cm -2 current densities respectively. With the synergistic effect of Co 2+ and Cu 2+ , the adsorption capacity of the intermediate OH* and the conductivity are improved, and the structural surface reconstruction are promoted by methoxide. In this work, the structure of FF-based electrocatalysts was modulated by Co 2+ and Cu 2+ introducing and synthesizing methoxy anions, which improved the catalytic activity of the catalysts.
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产品关联
DOI
PubMed
高影响因子
MOLECULES
·
2026
·Vol. 31
·期 13
·2397
·
IF 5.1
Hua Li,Zijun Huang,Yifei Hou,Qiyue Liu,Di Li,Wenyue Zhang,Yi Su,Zhide Wang,Zaifa Yang
Against the backdrop of energy conservation and environmental protection, developing more stable and efficient phosphors has become an urgent challenge. In this study, we have synthesized a series of Ca2.5Hf2.5Ga3O12:Eu3+(CHGO:Eu3+) red phosphors via a high-temperature solid-state method, which exhibit strong red emission at 610 nm under 394 nm excitation, corresponding to the5D0→7F2transition of Eu3+. To improve the lattice vacancies caused by charge imbalance when Eu3+is doped into the CHGO lattice to replace Ca2+, we introduce the charge compensator M+(M = Li, Na, K). The results of the emission spectrum show that the introduction of charge compensators can effectively improve the luminescence intensity. Among them, K+has the most significant effect on increasing the emission intensity of Eu3+, making the emission intensity of the phosphor more than twice that when there are no charge compensation ions. Additionally, the quantum efficiency and thermal stability of these phosphors are significantly improved compared to the CHGO:0.075Eu3+sample before substitution. At 423 K, the emission intensity of the CHGO:0.075Eu3+, 0.075K+sample still remains at 88.7% of that at 298 K. The color rendering index of the prepared white LED is 81.2, and its CIE chromaticity coordinates are (0.3212, 0.3065). This indicates that the prepared CHGO:0.075Eu3+, 0.075K+red phosphor has broad application prospects in solid-state lighting.
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产品关联
DOI
高影响因子
ACS Omega
·
2026
·
IF 5.2
Yulin Sun,Yiwei Zhang,Yong He,Wubin Weng,Yanqun Zhu,Peixi Liu,Zhihua Wang
Mn-based catalysts usually exhibit considerable potential for enhancing the catalytic ozonation of volatile organic compounds (VOCs) at a lower temperature. In this study, bimetallic oxides M-Mn (M = Cr, Cu, Co) were supported on HZSM-5 zeolites to degrade dimethyl carbonate (DMC, chemical formula C3H6O3), a typical VOC emitted during the productive process of lithium batteries, with Mn/ZSM-5 for comparison. The Cr-doped catalyst CrMn/ZSM-5 could achieve 92% DMC conversion with 91% CO2 selectivity (O3/DMC = 6, T = 120 °C), showing an excellent catalytic performance among the prepared catalysts. The exceptionally low-temperature activity of CrMn/ZSM-5 was attributed to the synergistic effect of its large surface area, sufficient oxygen vacancies, and suitable acidity and reducibility, which collectively enhanced the level of O3 activation and accelerated DMC degradation. Furthermore, the catalyst demonstrated desirable stability and resistance to varying concentrations of water vapor. To elucidate the reaction pathway, in situ DRIFTS was employed to track the evolution of intermediate species during the adsorption and catalytic ozonation of DMC. With a further study of DFT calculation, the reaction mechanism of DMC catalytic ozonation on CrMn/ZSM-5 catalysts was put forward.
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DOI
PubMed
高影响因子
Journal of the American Chemical Society
·
2025
·
IF 15.6
Mingyan Chuai,Hao Tong,Zimin Yang,Siting Deng,Mingqiang Wu,Jidan Xing,Guoliang Chai
An electrolytic Zn–MnO2 battery is highly valued due to its cost-effectiveness, environmental friendliness, and abundant resource availability. However, the battery’s performance is hindered by the slow kinetics at the poorly conductive MnO2 cathode and hydrogen evolution at the Zn anode. Here, a strategy of P–O–M (M = Mn, Zn) d-pπ backbonding design is proposed for phosphorus–oxygen electrolyte additives, which can be realized by tuning the atomic dipole moment-corrected Hirshfeld (ADCH) population charge of the P/O atom. The reversibility of d-pπ backbonding not only leads to the fast kinetics of Mn2+/Zn2+ at electrodes during both charge and discharge processes to suppress the competitive hydrogen evolution reaction but also enhances the electronic conductivity at the electrode–electrolyte interfaces to sustain the high areal capacity of batteries. Hydroxymethyl dimethyl phosphite (HPD) with d-pπ backbonding is a preferred additive with a suitable ADCH charge. The assembled electrolytic Zn–MnO2 (HPD) battery exhibits a high discharge capacity of 14.05 mAh cm–2 at an areal capacity of 15 mAh cm–2 and superior cycling stability over 1500 cycles. The Zn–MnO2 (HPD) soft-pack battery exhibits a discharge capacity of over 1.60 Ah at a discharge rate of 0.5 C and maintains a Coulombic efficiency of ∼80% over 100 cycles. Furthermore, the assembled 50 V 40 Ah commercial Zn–MnO2 (HPD) battery can drive an electric vehicle for 10 km. The ADCH charge regulation provides a feasible and effective method for developing high-performance aqueous batteries by achieving d-pπ backbonding.
研究领域:
电化学储能
·
材料科学
·
能源化学
·
应用化学
·
电池技术
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产品关联
DOI
PubMed
高影响因子
Materials Today Nano
·
2024
·
IF 8.2
Asim Arshad,Brundha Chidambaram,Abdullah Nasir,Tianxiang Yang,Menglong Sun,Nosheen Zafar,Sining Yun
Constructing multicomponent electrocatalysts towards efficient energy conversion is widely adopted strategy, in this regard, high performance metal/nonmetal codoped carbon electrode materials have attained great consideration. Still, the electroacatalytic susceptibility, abundant intrinsic active sites, and stable electrochemical performance in different electrolytes are considered as underline challenges, which can be addressed by rational structural modifications to build a hybrid electroactive material. In this work, unique Sn based multicomponent carbon nanospheres are firstly developed as highly efficient bi-functional electrocatalysts in solar cells and hydrogen evolution. The designed electrocatalysts feature the combined effect of dispersed bimetal active sites and sufficient nitrogen components within spherical carbon framework, which readily enhanced the charge transfer rate via multiple channels, boosting the triiodide reduction reaction (IRR) and hydrogen evolution reaction (HER). As a result, solar cell with Mn/Sn-NC based counter electrodes (CEs) exhibited an excellent power conversion efficiency (PCE) of 8.39 %, outperforming Pt (7.67 %). Moreover, superior HER kinetics are also demonstrated by Mn/Sn-NC with a small overpotential of 127.8 mV at 10 mA cm −2 and tafel slope of 77 mV dec −1 . The rational design of the carbon nanospheres with MnSn 2 bimetal nanoparticles and N doping promotes a high electrochemically active surface area, low charge-transfer resistance, excellent electrochemical stability, and superior electrocatalytic activity, providing a promising route to construct highly efficient materials towards multiple energy conversion applications.
研究领域:
材料科学
·
电化学
·
能源转换
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产品关联
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Jian Gao,Xinrui Dai,Zhenhua Gu,Guixian Deng,Jiangyong Yuan,Kongzhai Li
Catalysts loaded with metal oxides of M (M = Mn, Co, Ce) were synthesized by deposition precipitation method using cold rolled sludge (iron oxide as the main component) as a raw material for the selective catalytic reduction of NO x by ammonia (NH 3 -SCR). Among the various formulations, the co-supported catalyst containing 5 % Mn and 5 % Co on CRS-400 exhibited exceptional SCR performance, achieving over 90 % conversion of NO x from 80 °C to 200 °C. The addition of 5 % Mn and 5 % Co as active components resulted in an increase in the specific surface area for catalytic performance and an enhancement of the redox capacity, leading to a significant improvement in catalyst activity. The catalyst’s efficient denitration performance was attributed to the synergistic interaction between Mn, Co, and Fe oxides, resulting in a catalyst with a higher proportion of adsorbed oxygen, as well as an elevated composition of Mn 4+ and Fe 2+ species. The catalyst demonstrated excellent SCR activity at low-temperatures, indicating its potential for downstream applications in soot treatment equipment. This would achieve the dual benefits of purifying the atmosphere and disposing of solid waste.
研究领域:
环境科学
·
催化化学
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产品关联
DOI
高影响因子
Nano Research
·
2017
·Vol. 11
·期 2
·831-844
·
IF 7.354
Wang Yunhui,Li He,Zhang Yiyong,Peng Yueying,Zhang Peng,Zhao Jinbao
Owing to their unique structural stability and impressive long-term cycling performance, coated hollow structures are highly attractive for energy storage systems, especially batteries. Many efforts have been devoted and various strategies have been proposed to prepare such materials. In the present work, we propose a self-templating thermolysis strategy, different from traditional wet processing methods, to fabricate cuprous sulfide hollow spheres coated with different shells, by exploiting the thermal decomposition properties of the core (CuS) and the protection provided by the shell. To demonstrate the generality of this synthetic approach, three different coating materials (carbon, TiO 2 , MoS 2 ) have been chosen to prepare Cu 2– x S@C, Cu 2– x S@TiO 2 and Cu 2– x S@MoS 2 hollow spheres. All synthesized composite materials were then assembled as electrodes and tested in lithium batteries, showing excellent cycling stability. In particular, the electrochemical properties of Cu 2– x S@C were thoroughly investigated. The results of this work provide an alternative route to prepare coated metal sulfide hollow spheres for energy storage applications.
研究领域:
材料科学
·
能源存储
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DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2017
·
IF 4.421
Yuanfeng Wu,Xianghai Song,Shuai Li,Jiahui Zhang,Xinghui Yang,Pengxin Shen,Lijing Gao,Ruiping Wei,Jin Zhang,Guomin Xiao
[(CH 3 ) 2 NH 2 ][M 3 (BTC)(HCOO) 4 (H 2 O)] . H 2 O (M–BTC, M = Mn, Ni, Co) were prepared under hydrothermal conditions and used as highly efficient catalysts for cycloaddition of CO 2 with epichlorohydrin (ECH). The microstructure and physicochemical properties of the compounds were determined by PXRD, FT-IR, XPS, N 2 -adsorption, TG–DSC, NH 3 –TPD and CO 2 –TPD. 98.01% conversion of ECH and 96.05% selectivity to chloropropene carbonate was obtained over the Mn–BTC under the optimized reaction conditions (105 °C, 3.0 MPa, 9 h, 1.5 wt.% of ECH). Besides, the recyclability result exhibited the Mn–BTC compound can be utilized as least three times with a slight reduction in its catalytic ability. In addition, cycloaddition of CO 2 with other epoxides and DFT calculation were also performed. The result exhibited the yield followed the order: ECH > 1, 2-epoxybutane > propene oxide > Allyl glycidyl ether, which was mainly determined by the energy of reaction.
研究领域:
化学工程
·
材料科学
·
环境科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）