APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
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IF 22.1
Bo Feng,Yaxuan Jing,Xiaohui Liu,Yong Guo,Yanqin Wang
The upcycling of waste polyvinyl chloride (PVC) is a grand challenge because of the unmanageable Cl species. Here, we develop a Cl-transfer strategy to upcycle waste PVC into value-added organic chlorides and PE-like polymer with various Cl acceptors (tetrahydrofuran, dibutyl ether and butanol) over Ru/Al 2 O 3 catalyst. The high utilization efficiency of Cl (> 80 %) can be obtained over Ru/Al 2 O 3 at 180 °C, 2Mpa H 2 with tetrahydrofuran as an acceptor within tens of hours. The excellent performance is attributed to key features including Al 2 O 3 for the C-O bond activation and metal Ru for C-Cl bond activation and H 2 dissociation. The remaining PE-like polymer after removing Cl could be regarded as PE-like feedstock and further converted into methane through the same Ru/Al 2 O 3 catalyst. The Cl-transfer system also enables the upcycling of several common PVC-contained wastes and works well in the scale-up test. This work offers a catalytic path to integrate waste PVC plastic into the supply chain of organic chlorides under the context of circular economy.
研究领域:
化学工程
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材料科学
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环境科学
·
催化
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Yue Zhao,Yujie Xiao,Xian Yang,Xue Zhang
This study presented the synthesis of phosphorus (P) and chlorine (Cl) co-doped carbon quantum dots (P/Cl-CQDs) derived from Epimedium brevicornu Maxim. and established a simple and effective chemiluminescence (CL) system for detecting Sulfacetamide (STM) and Sulfadimethoxine Sodium Salt (STX). Employing traditional Chinese medicine Epimedium brevicornu Maxim. as a green precursor material, (NH 4 ) 2 HPO 4 and NH 4 Cl were utilized as dopants for P and Cl, respectively. The P/Cl-CQDs was synthesized through a one-step hydrothermal method exhibited excellent CL properties, effectively catalyzing the luminol system and markedly amplifying its CL intensity. Both STM and STX were observed to inhibit the CL intensity of the luminol-(P/Cl-CQDs) system. Based on this, a novel CL method combining flow injection technique was established for the detection of STM and STX. Under optimal conditions, the method demonstrated the capability to detect STM in the range of 1–400 × 10 −6 mol/L, with a limit of detection (LOD) of 0.34 × 10 −6 mol/L and a relative standard deviation (RSD) of 1.29 %, and STX within the range of 5–280 × 10 −6 mol/L, with a LOD of 0.16 × 10 −6 mol/L and an RSD of 1.23 %. This method successfully determined the content of STM and STX in pork, with spike recoveries ranging from 100.0 % to 103.8 % for STM and from 98.0 % to 102.3 % for STX.
研究领域:
分析化学
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材料科学
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环境科学
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药物分析
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2025
·
IF 6
Chunxue Gu,Shiyi Zhou,Huimin Gan,Yu Zhao,Jiatong Liu,Ming Ma,Hongwei Chu,Bo Chen
Background Protein extraction from plant leaves is a key step in plant proteomics analysis. However, traditional methods often face challenges, including low efficiency, incomplete protein coverage, and environmental concerns. These limitations highlight the need for developing more efficient and environmentally friendly extraction techniques. Ionic liquids (ILs) have shown promise in protein extraction due to their excellent solubility and enzyme compatibility, offering a potential solution to these issues. In this study, we explore the use of short and long alkyl chain ILs to improve protein extraction efficiency from plant leaves. Results Using tobacco K326 as a model plant, a stepwise extraction system was designed with 10% 1-ethyl-3-methylimidazolium chloride ([C 2 MIM]Cl) and 4% 1-dodecyl-3-methylimidazolium chloride ([C 12 MIM]Cl). Both [C 2 MIM]Cl and [C 12 MIM]Cl effectively disrupted the cellulose hydrogen-bond network, facilitating protein release from the plant cell wall, while [C 12 MIM]Cl also enhanced membrane protein solubility, significantly improving the overall protein extraction efficiency. The relative protein concentration achieved with this method was 2.28, which is notably higher than traditional methods using urea (1.21) and SDS (1.47). The method was applied to proteomic analysis of healthy and brown spot disease-affected tobacco leaves, identifying 6858 proteins in total. Among these, 758 proteins were differentially expressed, with 414 upregulated and 344 downregulated in diseased leaves, providing insight into disease-related protein expression. Significance This novel protein extraction method offers a highly efficient alternative to traditional approaches. It significantly enhances protein yield and solubility, providing valuable support for in-depth plant proteomics research. This method is particularly useful for studying plant disease responses, facilitating the identification of disease-related proteins and contributing to the understanding of plant-pathogen interactions.
研究领域:
植物科学
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蛋白质组学
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分析化学
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分子生物学
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生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energetic Materials
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2017
·
IF 1.557
Xi Li,Qiu-han Lin,Xin-Ying Zhao,Zhi-Wei Han,Bo-liang Wang
Thermal techniques (differential scanning calorimetry (DSC) and the vacuum stability test (VST)), according to STANAG 4147, and non-thermal techniques (Fourier transform infrared (FTIR) spectrometry and X-ray diffractometry (XRD)) were used to examine compatibility issues for 2,4,6,8,10,12-hexanitrohexaazaisowurtzitane (CL-20) with a selection of insensitive explosives, including nitroguanidine (NQ), 2,4,6-trinitrotoluene (TNT), 2,6-diamino-3,5-dinitropyridine-1-oxide (ANPyO), 2,4,6-triamino-1,3,5-trinitrobenzene (TATB), 3-nitro-1,2,4-triazol-5-one (NTO) and 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105). DSC measurements showed that ANPyO, TATB, NTO and LLM-105 were compatible with CL-20. The compatibility of CL-20/NQ, CL-20/TNT, CL-20/ANPyO, CL-20/TATB, CL-20/NTO and CL-20/LLM-105 mixtures was further explored using the VST, which revealed that all the selected insensitive explosives were compatible with CL-20. Possible chemical interactions were suspected for CL-20/TATB from the FTIR results and for CL-20/NTO from XRD analysis. In summary, ANPyO and LLM-105 demonstrated the optimal compatibility with CL-20.
研究领域:
材料科学
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化学工程
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爆炸物研究
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DOI
高影响因子
Energetic Materials Frontiers
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2025
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IF 3.9
Bo-wei Gao,Yan-ze Liu,Xiao-feng Guo,Xu-ran Xu,Hai-feng Yang,Guang-cheng Yang,Jing Lv,Ling-hua Tan
Based on a simple catechol-amine co-precipitation strategy and biomimetic adhesion characteristics, this study prepared a desensitized CL-20@PCPA core-shell energetic powder using the phenolic and amino compound containing low-cost polycatechol/polyamine (PCPA). The results indicate that the CL-20@PCPA composite powder exhibited an elevated characteristic drop height of impact sensitivity ( H 50 ) of 34.9 cm and a reduced friction explosion probability of 56% compared to pure CL-20. PCPA, containing catechol and amine groups, provided a stable platform for secondary modification to enhance the safety of the powder further. Notably, when the CL-20@PCPA@MXene powder was introduced into a propellant system, the resulting propellants displayed a high H 50 value of 20.3 cm while its heat of detonation remained unchanged. This study provides a simple and low-cost biomimetic interface modification strategy for preparing desensitized energetic materials.
研究领域:
材料科学
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爆炸物安全
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界面工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2019
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IF 8.355
Chuan Huang,Zhijian Yang,Yanchun Li,Baohui Zheng,Qilong Yan,Lifeng Guan,Guan Luo,Shangbin Li,Fude Nie
Nano-aluminum, as a potential replacement of micro-aluminum, has attracted significant research interests in energetic fields due to its high reactivity. However, the intrinsic high surface area of nanoparticles drives nano-aluminum encounter challenges in handling process and prone to large aggregation, significantly impeding the further application of nano-aluminum. In this work, nano-aluminum based microspheres incorporating hexanitrohexaazaisowurtzitane (CL-20) are directly fabricated by electrospray deposition. These as-prepared microspheres were in high monodispersity and their size ranges from 8 to 16 μm. The surface morphology of such microspheres was adjustable by using different polymers as binder. Thermal behavior results show that CL-20 has no appreciable effect on the reactivity of nano-aluminum while the fluoropolymer binder (F2314) facilitates the oxidation of nano-aluminum. Nevertheless, the presence of CL-20 can significantly enhance the reactivity of nano-aluminum in the combustion behavior tests, where electrosprayed microspheres exhibit outstanding performance in comparison to physical mixed sample, presenting a high pressurization rate, peak pressure and short burning time. These excellent properties are possibly attributed to their uniform microstructure. Therefore, the use of electrospray method can offer a promising strategy to fabricate the microstructure controllable microspheres.
研究领域:
材料科学
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能源领域
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产品关联
DOI
高影响因子
International Journal of Environmental Science and Technology
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2017
·Vol. 15
·期 2
·385-394
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IF 1.915
Zhuang S. T.,Yin Y. N.,Wang J. L.
Abstract In this paper, we modified chitosan beads in order to simultaneously detect and adsorb Co 2+ from aqueous solution. Firstly, 4-(5-chloro-2-pyridylazo)-1,3-phenylenediamine (5-Cl-PADAB) was used as selective probe for Co 2+ with color changing from yellow to pink, and the UV–Vis spectra showed that the λ
max changed from 439 to 504 nm. Then a novel biomaterial was synthesized with 5-Cl-PADAB (metal indicator), chitosan (biosorbent) and EDTA anhydride (cross-linker and chelating agent). The analysis of Fourier transform infrared and energy-dispersive X-ray spectra proved that 5-Cl-PADAB and EDTA were successfully connected to chitosan. The modified chitosan bead was selective probe for Co 2+ with a remarkable color change from white to pink, and the UV–Vis spectra showed that the λ
max changed from 441 to 459 nm. The adsorption of cobalt ions onto the modified chitosan beads followed pseudo-second-order ( R
2 = 0.99) kinetics and the Langmuir isotherm model ( R
2 = 0.80). Comparing with chitosan beads, the q
e of the modified one increased from 2.00 to 7.97 mg/g. The modified chitosan beads are promising biomaterial for simultaneous detection and removal of Co 2+ from aqueous solution. Graphical Abstract
研究领域:
环境科学
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材料科学
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生物化学
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产品关联
DOI
高影响因子
CRYSTAL GROWTH & DESIGN
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2025
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IF 3.4
Ze-Jiang Xu,Hua-Kai Li,Mei-Ling Ren,Liang-Han Shen,Xiang Zhang,Zi-Ao Qiu,Chao Shi,Li-De Yu,Na Wang,Heng-Yun Ye,Le-Ping Miao
Long-range order of electric dipoles means important physical properties such as ferroelectricity or antiferroelectricity, making materials have broad applications in information storage, sensors, switches, and optical electric devices. However, the orientation control of electric dipoles remains a great challenge on a molecular/ion level. Herein, we report the realization of ferroelectric order via Cl–Cl halogen-bond interactions in hybrid double perovskite [CH2ClN(CH3)3]2NaRuCl6 (TCNRC) derived from [(CH3)4N]2NaRuCl6 (TNRC) for the first time. TCNRC shows spontaneous polarization (Ps = 2.67 μC cm–2) and piezoelectricity (d33 = 4 pC N1–) with a Curie temperature (Tc) of 320 K. This study reveals the important role of halogen-bonding interactions to form ferroelectric orders and provides new insights into the molecular level regulatory polarity in molecular ferroelectric systems.
研究领域:
材料科学
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物理化学
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2019
·
IF 2.298
Yongmei Xuan,Xianyu Ding,Neng Gao,Yaqi Ding,Xin Meng,Guangming Chen
1-Ethyl-3-methylimidazolium chlorine ([Emim]Cl) and 1-ethyl-3-methylimidazolium bromide ([Emim]Br) as an additive to working fluid [lithium bromide aqueous solution (H2O/LiBr) and lithium chloride aqueous solution (H2O/LiCl)] of absorption cycles were proposed. The vapor pressure of H2O + LiCl + [Emim]Cl (mass ratio LiCl/[Emim]Cl = 2) in the temperature from 314.79 to 435.48 K, H2O + LiCl + [Emim]Br (mass ratio LiCl/[Emim]Br = 2) in the temperature from 317.62 to 431.27 K, and H2O + LiBr + [Emim]Cl (mass ratio LiBr/[Emim]Cl = 2) in the temperature from 303.10 to 409.91 K was measured by the boiling point method. The mass fractions of the absorbent were from 0.30 to 0.60. The experimental data were regressed using the Antoine-type equation, and the average absolute relative deviation (AARD %) between the experimental data and calculated values of three systems was 0.44, 0.51, and 0.54%. Compared with that of the previously reported ionic liquids, ([Emim]Ac) as an absorbent for LiBr + H2O, vapor pressure of these four systems follows the order LiCl + [Emim]Cl + H2O < LiCl + [Emim]Br + H2O < LiBr + [Emim]Cl + H2O < LiBr + [Emim]Ac + H2O. The proposed ternary systems have better water affinity and can be promising alternative working fluids in the absorption cooling system.
研究领域:
化学工程
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热力学
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DOI
高影响因子
ACS Applied Materials & Interfaces
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2023
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IF 9.5
Li Zhang,Xinxin Li,Ye Tian,Bin Hao,Jiufang Han,Hong Chen,Bingsuo Zou,Chunhua Du
Inorganic perovskites have received much attention due to their stability and high performance in luminescence, photoelectric conversion, and photodetection. However, perovskite optoelectronic devices prepared by the solution technique are still suffering from time-consuming and complex operations. In this paper, a single-crystal perovskite-based photodetector (PD) is prepared by very fast one-step deposition of synthesizing microplatelets (MPs) on the electrode directly. The saturated precursor is carefully optimized by adding appropriate antisolvent chlorobenzene (CB) to fabricate the MPs with their PL wavelength ranging from 418 to 600 nm. Furthermore, the PDs with a low dark current on order of nanoangstroms, high responsivity and detectivity of up to 10.7 A W–1 and 1012 Jones, respectively, and an ultrafast response rate featured by 278/287 μs (rise/decay time) are achieved. These all-inorganic perovskite PDs with a simple fabricating process and tunable detection wavelength meet the evolution tendency of PDs toward low cost and high performance, which is a high-profile strategy to realize high-performance perovskite PDs.
研究领域:
材料科学
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光电子学
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半导体物理
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产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Ye Zhang,Cunbin Zhu,Yongli Chen,Lu Wang,Xilong Huang,Linghong Zeng,Wenyan Lv
In this work, Ti 3 C 2 –Cl is introduced into poly(3,4-ethylenedioxythiophene): poly(4-styrenesulfonic acid) / single-walled carbon nanotubes (PEDOT: PSS/SWCNT, noted as PPSC) films to prepare ternary thermoelectric films of PEDOT: PSS/SWCNT/Ti 3 C 2 –Cl (PPSCT). The microscopic morphology, structures, and thermoelectric properties of PPSC and PPSCT films show that the introduction of Ti 3 C 2 –Cl results in a tendency of decreasing electrical as well as thermal conductivity , and the Seebeck coefficient is increased. When the content of Ti 3 C 2 –Cl reaches 8 wt%, the conductivity, Seebeck coefficient, and thermal conductivity of the PPSCT films reach the optimum values of 1683 S/cm, 21.69 μV/K, and 14.97 W/mK, respectively, and the power factor (PF) and thermoelectric figure of merit (ZT) are 79.23 μW/mK 2 and 1.58 × 10 –3 . The UPS and Hall effect results reveal that the improvement of the Seebeck effect of PPSCT mainly results from the ternary interfacial energy barrier as well as the change of carrier concentration. In addition, the wearable electronics devices demonstrate an output voltage of 4.5 mV and an output power of 54.36 nW under a 50 K temperature difference. The device displays a good monitoring sensitivity by reaching an output voltage of 0.6 mV at a 7 K temperature difference between the skin and the environment.
研究领域:
材料科学
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电子工程
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可穿戴设备
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2015
·Vol. 132
·期 22
·
IF 1.768
Jiaxuan Feng,Hongjun Zang,Qing Yan,Mingguang Li,Xinqiang Jiang,Bowen Cheng
1-Carboxymethyl-3-methylimidazolium hydrochloride ([IMIM–COOH]Cl), a new ionic salt, is proposed as a green, promising solvent for dissolving chitosan. However, because of the optimal dosage of chitosan dissolved in [IMIM–COOH]Cl, a 12 wt % [IMIM–COOH]Cl aqueous solution was selected as an optimum solvent system for dissolving chitosan. The structures of the original and regenerated chitosan were characterized by Fourier transform infrared spectroscopy and X-ray diffraction analysis. Scanning electron microscopy was used to visualize the morphological features of the reconstituted chitosan membranes. Meanwhile, the absorbance, tensile strength, and breaking elongation of the chitosan membranes were measured. The results reveal that 10–11 wt % was an optimal chitosan concentration for preparing membranes. Furthermore, the adsorption capacity for Cu(II) ion of the chitosan membranes was increased with the chitosan concentration decreased from 12 to 8 wt %. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41965.
研究领域:
材料科学
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环境科学
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化学工程
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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）