JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Qiao Liu,Bingshan Tao,Nong Xu,Qing Wang,Long Fan,Yinhua Wan
Two-dimensional (2D) MXene membranes have attracted significant attention for their high efficiency in molecule separation. In this study, an interlaminar in-situ growth strategy was employed to incorporate TpHz into the adjacent layer space between the Ti 3 C 2 T x nanosheets of the 2D Ti 3 C 2 T x membrane. In the typical synthesis process, due to the hydrophilic nature of Ti 3 C 2 T x , the aqueous phase monomer diffuses through the Ti 3 C 2 T x layers, reacts with the organic phase monomer in the top-surface and generate TpHz in-situ . Gradually, TpHz grows into the interlaminar space of the Ti 3 C 2 T x nanosheets and the interior of the membrane. Owing to the charge transfer interaction existing between the TpHz and Ti 3 C 2 T x nanosheets, the adjacent layer space between the Ti 3 C 2 T x nanosheets is broadened without compromising the structural stability of the composite membranes. Accordingly, the TpHz/Ti 3 C 2 T x composite membrane (TTCM) exhibit highly efficient molecule sieving properties and excellent structural stability, with a high pure water permeance of 986.5 L m −2 h −1 ·bar −1 and a rejection rate of over 95.0 % for anionic organic dyes. Additionally, the TpHz/Ti 3 C 2 T x layer, with the thickness of only 160 nm, in the TTCM could withstand 80 h of water and solution flushing at a flow rate of 40 L min −1 in cross-flow filtration tests, maintaining stable solution permeance of 448 L m −2 h −1 ·bar −1 and rejection rates of 95.3 % demonstrating its high structural stability and potential for expanding industrial application in molecule sieving processes.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2023
·Vol. 16
·期 10
·3610
·
IF 3.4
Yinan Ren,Zhihua Tian,Yan Zhang,Fushuo Wu,Hao Xie,Qianqian Zhang,Peigen Zhang,Zhengming Sun
ZnO whiskers have many applications, such as in medical and photocatalysis fields. In this study, an unconventional preparation approach is reported, realizing the in-situ growth of ZnO whiskers on Ti2ZnC. The weak bonding between the layer of Ti6C-octahedron and the Zn-atom layers leads to the easy extraction of Zn atoms from Ti2ZnC lattice points, resulting in the formation of ZnO whiskers on the Ti2ZnC surface. This is the first time that ZnO whiskers have been found to grow in-situ on Ti2ZnC substrate. Further, this phenomenon is amplified when the size of the Ti2ZnC grains is mechanically reduced by ball-milling, which bodes a promising route to prepare ZnO in-situ on a large scale. Additionally, this finding can also help us better understand the stability of Ti2ZnC and the whiskering mechanism of MAX phases.Keywords:Ti2ZnC MAX phase;crystal growth;in-situ growth;ZnO whiskers
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 9
·1571
·
IF 5.719
Hao Gong,Shiguang Bie,Jian Zhang,Xianbin Ke,Xiaoxing Wang,Jianquan Liang,Nian Wu,Qichang Zhang,Chuanxian Luo,Yanmin Jia
The Co3O4electrode is a very promising material owing to its ultrahigh capacitance. Nevertheless, the electrochemical performance of Co3O4-based supercapacitors is practically confined by the limited active sites and poor conductivity of Co3O4. Herein, we provide a facile synthetic strategy of tightly anchoring Co3O4nanosheets to a carbon fiber conductive cloth (Co3O4@C) using the zeolitic imidazolate framework-67 (ZIF-67) sacrificial template via in situ impregnation and the pyrolysis method. Benefiting from the enhancement of conductivity and the increase in active sites, the binder-free porous Co3O4@C supercapacitor electrodes possess typical pseudocapacitance characteristics, with an acceptable specific capacitance of ~251 F/g at 1 A/g and long-term cycling stability (90% after cycling 5000 times at 3 A/g). Moreover, the asymmetric and flexible supercapacitor composed of Co3O4@C and activated carbon is further assembled, and it can drive the red LED for 6 min.Keywords:ZIF-67;Co3O4nanosheet;in situ growth;Co3O4@C;supercapacitor
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Junshuo Cui,Lanlan Sun,Liangyu Guo,Qian Sun,Xiaogeng Feng,Haibiao Yu,Ying Xiong
Uniform distribution of electrochemically active transition metal compounds on carbon cloth can effective improve their hydrogen evolution reaction (HER) performance, however, harsh chemical treatment of carbon substrates is always unavoidable during this process. Herein, a hydrogen protonated polyamino perylene bisimide (HAPBI) was used as interface active agent for the in situ growth of rhenium (Re) doped MoS 2 nanosheets on carbon cloth (Re-MoS 2 /CC). HAPBI contains a large conjugated core and multiple cationic groups and has been shown to be an effective graphene dispersant . It endowed the carbon cloth excellent hydrophilicity through simple noncovalent functionalization and, meanwhile, provided sufficient active sites to anchor MoO 4 2- and ReO 4 - via electrostatic interaction . Uniform and stable Re-MoS 2 /CC composites were facilely obtained by immersing carbon cloth in HAPBI solution followed by hydrothermal treatment in the precursor solution. The doping of Re induced the formation of 1 T phase MoS 2 , which reached about 40% in the mixture with 2H phase MoS 2 . Electrochemical measurements showed an overpotential of 183 mV at a current density of 10 mA cm −2 in 0.5 mol L -1 H 2 SO 4 when the molar ratio of Re to Mo is 1:100. This strategy can be further extended to construct other electrocatalysts that using graphene, carbon nanotubes , etc. as conductive additives.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials
·
2020
·Vol. 13
·期 19
·4403
·
IF 3.057
Zhen Liu,Xinshu Xia,Wei Li,Liren Xiao,Xiaoli Sun,Fubin Luo,Qinghua Chen,Qingrong Qian
The work reports a novel strategy for combining polymers and metal–organic frameworks (MOFs) into composites for adsorption applications. Calcium silicate (CaSiO3) was introduced into acrylonitrile butadiene styrene/thermoplastic polyurethane (ABS/TPU) alloy, and the CaSiO3/ABS/TPU skeleton was fabricated by 3D printing technology. The Ca-MOF was directly loaded on the surface of acetone-etched 3D skeleton by in-situ growth method. The obtained 3D skeleton was characterized and the performance of methylene blue (MB) adsorption was determined. It is clear that Ca-MOF is successfully loaded on the surface of 3D skeleton due to the presence of CaSiO3. The MB adsorption ratios of the solutions with initial concentrations of 50, 100 and 200 mg/L at the equilibrium time (5 h) are 88%, 88% and 80%, respectively, revealing good MB adsorption performance of the 3D skeleton. The MB adsorption ratio remains 70% at six runs of adsorption–desorption experiment, indicating the excellent recovering property of the skeleton. The results show that the prepared CaSiO3/ABS/TPU 3D skeleton is a candidate adsorbent for printing and dyeing effluent treatment.Keywords:3D printing;metal–organic framework;in-situ growth;adsorption;methylene blue
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2022
·
IF 6.364
Yang Li,Maolin Chen,Qinzhao Zhang,Yanzi Gou,Peng Xiao,Pengju Chen,Wei Zhou,Xiaobing Zhou
Y 3 Si 2 C 2 ternary ceramics were in-situ grown on the third-generation Chinese commercial SiC fiber (KD-SA SiC fiber) surface via molten salt method. Microstructures and oxidation/corrosion behavior of in-situ grown Y 3 Si 2 C 2 coated SiC fibers exposed to air and wet-oxygen at 1400 ℃ were investigated. Results indicated that the layered Y 3 Si 2 C 2 slices with thickness of approximately 15 nm can be successfully in-situ grown on SiC fibers. The product on the fibers surface after oxidation/corrosion at 1400 ℃ for 1 h in both ambient air and wet-oxygen are Y 2 Si 2 O 7 and SiO 2 . Moreover, microstructural characterization indicates that the immigration and expansion of gaseous bubbles induced by oxidation product, mainly CO, result in microstructural differences of SiC fiber specimens, and finally oxidation mechanism based on the microstructural difference were proposed.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
·
2021
·
IF 5.234
Xiaoyu Zhang,Ying Liu,Xiaobo Liu,Jingfan Zhang,Xin Chen,Yanxia Wu,Lin Jing,Xiaolei Wu,Min Zhao,Peide Han
Few-layer graphene reinforced nickel matrix (GNs/Ni) composites were fabricated by a facile in-situ processing strategy involving the transformation from solid carbon precursors to graphene reinforcements under the vacuum hot-press sintering. It enabled the homogeneous distribution of reinforcements, the effective interfacial bonding between graphene nanosheets and Ni matrix, as well as the resisted grain growth during the high-temperature consolidation process. The GNs/Ni composites exhibited exceptionally enhancement of the strength and ductility simultaneously. The composite with 0.3 wt% graphene achieved the optimal yield strength, tensile strength , and fracture elongation of 285 MPa, 611 MPa, and 56%, respectively, which were enhanced by 1.16, 1.34 and 1.37 folds compared to those of pure Ni bulk. The microstructures before and after tensile deformation demonstrated that the strengthening effect of in-situ grown graphene in the Ni matrix was attributed to the grain refinement and effective load transfer, while the toughening effect was related to the crack bridging and graphene pull-out mechanisms.
研究领域:
材料科学
·
力学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2018
·
IF 2.179
Ming Li,Qingyan Zhang,Haoran Ruan,Xiandong Wang,Yongping Liu,Zhenhuan Lu,Jiefeng Hai
The advantage of 2D-2D heterojunction over 2D-0D and 2D-1D heterojunction is that it has larger interface area, which results in the shorter migration distance of photo-induced charge carriers, and can therefore separate the electron-hole pairs more effectively. In this work, to form 2D-2D heterojunction , PbS nanosheets were grown in situ on 2D MoS 2 layers via. solvothermal process. The formation of 2D MoS 2 -2D PbS composites has been confirmed by XRD , Raman, TEM , and EDS analysis . The area of PbS nanosheets attached on MoS 2 can be controlled by changing the concentration of PbS precursor in reaction solution. Compared with pristine MoS 2 , MoS 2 -PbS composites showed improved light absorption property and enhanced photocatalytic ability using methylene blue as the target of degradation. The optimized composite displayed a photocurrent 5 times higher than that of pristine MoS 2 .
研究领域:
材料科学
·
纳米科技
·
光催化
·
复合材料
·
表面化学
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Yi Sun,Wenlong Sun,KangKang Zhang,Siyu Cui,Xiong Shao,Jian Qiu,Yushan Yang,Jun Li
In order to improve the specimens’ flame-retardant qualities, ethyl orthosilicate was impregnated into them using a combination of the delignification process and the in situ growing approach. Lignification has been demonstrated to increase the cellular gap of the specimen and to maximize the impregnation of ethyl orthosilicate. Moreover, the in situ growth method results in the combination of specimens containing silica manufactured from ethyl orthosilicate, thereby forming a composite material with enhanced flame-retardant properties. The examination of the changes in the properties of the specimens before and after modification was conducted using FTIR spectroscopy, XRD, XPS, SEM, and other experimental techniques. The modified specimens exhibited higher properties in comparison to the untreated specimens. Furthermore, the modified specimens exhibited enhanced mechanical properties, characterized by an augmented compressive strength of 34.9 MPa and a strength-to-weight ratio of 158 MPa·cm·g–1, in comparison to specimens that did not undergo the modification process. The results of experiments show that proposed green technology provides a new method for producing flame-retardant composites and could significantly improve the mechanical and flame-retardant qualities of wood.
研究领域:
材料科学
·
林业工程
·
化学工程
✓ 已验证
DOI
PubMed
高影响因子
Materials
·
2024
·Vol. 17
·期 14
·3550
·
IF 3.1
Xingting Zhou,Bin Xu,Xue Zhao,Hongyu Lv,Dongyang Qiao,Xing Peng,Feng Shi,Menglu Chen,Qun Hao
Metal halide perovskites have shown unique advantages compared with traditional optoelectronic materials. Currently, perovskite films are commonly produced by either multi-step spin coating or vapor deposition techniques. However, both methods face challenges regarding large-scale production. Herein, we propose a straightforward in situ growth method for the fabrication of CsPbBr3nanocrystal films. The films cover an area over 5.5 cm × 5.5 cm, with precise thickness control of a few microns and decent uniformity. Moreover, we demonstrate that the incorporation of magnesium ions into the perovskite enhances crystallization and effectively passivates surface defects, thereby further enhancing luminous efficiency. By integrating this approach with a silicon photodiode detector, we observe an increase in responsivity from 1.68 × 10−2A/W to 3.72 × 10−2A/W at a 365 nm ultraviolet wavelength.
研究领域:
材料科学
·
光电材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2023
·Vol. 25
·期 8
·1-11
·
IF 2.5
Dong Qi Zheng,Huang Xin Yi,Huang Cheng
A composite luminescent material consisting of perovskite quantum dots (PQDs) and MOF-5 using an in-situ growth method. The preparation of MOF-5 as a growth template was achieved via hydrothermal synthesis, with the addition of CTAB/TMB as a stencil agent to facilitate the formation of pores with an appropriate size. Subsequently, CsPbBr 3 QDs were grown in situ on the MOF under mechanical grinding conditions. The prepared CsPbBr 3 @MOF-5 composite materials were characterized by various analytical techniques including BET, XRD, PL, TEM, SEM, and EDS. The results revealed that the average size of PQDs was only 4.9 nm, and the corresponding emission peak exhibited a blue shift of 11 nm. The photoluminescence intensity (PL) of CsPbBr 3 @MOF-5 was increased by 71% compared to the unmodified sample, and photoluminescence quantum yield (PLQY) of solid powder increased to 48%. This is due to the fact that MOF-5 reduces the surface defects of quantum dots. Additionally, the Significantly improved PQDs stability after compounding MOF, both at room temperature and under thermal stress. These findings highlight the potential of this synthetic strategy as a means of preparing ultra-small composite light-emitting materials, with promising applications in LED and optoelectronic devices.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Yue Wang,Bin-Bin Chen,Ya-Ting Gao,Lei Jiang,Jian Lv,Shuai Chang,Ruo-Can Qian,Da-Wei Li
Excellent photocatalysts are highly desirable for clean energy and pollutant treatment. Carbon dots (CDs)-based composite photocatalysts have been widely studied and utilized in catalytic fields. However, the preparation of the photocatalysts with high catalytic activity still faces a great challenge. Herein, white-light-driven CDs-based porous europium micro-networks (CDs@P-Eu-MNs) composite photocatalysts are prepared by a facile in-situ growth strategy. CDs can affect the morphology and produce a large number of porous structures of CDs@P-Eu-MNs. Importantly, the introduction of CDs not only increases the light absorption, but also promotes the separation of photogenerated charge carriers, and thus improve photocatalytic performance of CDs@P-Eu-MNs composites. CDs@P-Eu-MNs show the highest photocurrent density, which can be used for the highly-efficient photodegradation of rhodamine 6G dyes with almost 95% degradation rate under low power white light (20 W) without any radical generating agents such as H 2 O 2 . Therefore, this new and efficient CDs@P-Eu-MNs photocatalyst will have a great application prospect in water pollution treatment.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）