Scientific Reports
·
2024
·Vol. 14
·期 1
·1-11
·
IF 3.8
Yang Jianlin,Yang Xin,Yu Tianlu,Wang Zhecun
Liquid separation methods are widely used in industrial and everyday applications, however, their applicability is often constrained by low efficiency, membrane fouling, and poor energy efficiency. Herein, a conceptually novel liquid-infused interfacial floatable porous membrane (LIIFPM) system for high-performance oil/water separation is proposed. The system functions by allowing a liquid to wet and fill a superamphiphilic porous membrane, thereby creating a stable liquid-infused interface that floats at the oil/water interface and prevents the passage of immiscible liquids. The lower-layer liquid can outflow directly, while the flow of the upper-layer liquid is stopped by the membrane. Remarkably, the efficiency of the LIIFPM system is independent of the membrane pore size, enabling ultrafast immiscible oil/water separation in an energy-saving and antifouling manner.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Zheng Lu,Dashuai Sun,Sida Shen,Zeyu Lyu,Luhui Zhou,Pengcheng Luo,Shuai Wei,Hongpeng You
The pursuit of high-quality phosphors exhibiting swift response to near-ultraviolet (n-UV) excitation, elevated quantum efficiency (QE), superior thermal stability, and impeccable light quality has been a focal point of investigation. In this research, we synthesized a novel K2La2B2O7:Ce3+,Tb3+ (KLBO:Ce3+,Tb3+) color-tunable phosphor that meets these requirements. KLBO:Ce3+ can be stimulated efficiently by the n-UV light and shows an intense blue emission centered at 437 nm. Notably, KLBO:0.04Ce3+ exhibits exceptional internal QE (IQE = 94%) and outstanding thermal stability (I423 K/I303 K = 88%). Optimization of doping compositions enables efficient Ce3+ → Tb3+ energy transfer, resulting in substantial enhancements in QE and thermal stability. Specifically, KLBO:0.04Ce3+,0.28Tb3+ achieves an IQE of 98% and a thermal stability of 97%, higher than those of most phosphors of the same type. White light-emitting diodes fabricated using phosphor samples emit warm white light characterized by high Ra (Ra = 96.6 and 93.4) and low CCT (CCT = 4886 and 4400 K). This study underscores the feasibility of enhancing phosphor QE and thermal stability through energy transfer mechanisms.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2019
·Vol. 43
·期 46
·18345-18354
·
IF 3.069
Gaozhi Bai,Yu Han,Panpeng Du,Zhaoyang Fei,Xian Chen,Zhuxiu Zhang,Jihai Tang,Mifen Cui,Qing Liu,Xu Qiao
A highly efficient solid-amine adsorbent with excellent CO2 capacity from flue gas was successfully prepared using polyethyleneimine (PEI)-impregnated resin HPD450 in this study. The adsorbents were characterized by scanning electron microscopy (SEM), Fourier transforms infrared spectroscopy (FTIR), N2 adsorption–desorption, thermogravimetric analysis (TGA) techniques and elemental analysis (EA). The CO2 adsorption behaviors of the adsorbent were studied for their adsorption capacity, kinetics, thermodynamics and stability. The optimal adsorbent (HPD450/PEI-50) exhibited an excellent adsorption capacity of 4.44 mmol g−1 for pure CO2 and 3.62 mmol g−1 for 15 vol% CO2. Moreover, HPD450/PEI-50 retained an average capacity of 3.58 mmol g−1 under flue gas for 90 consecutive adsorption cycles. The adsorption/desorption process of CO2 on HPD450/PEI-50 was investigated using in situ FTIR. The capture of carbon dioxide in the simulated flue gas stream also demonstrated that moisture had a promoting effect on CO2 adsorption. This design of the high-performance HPD450/PEI-50 with a fantastic CO2 capacity could provide an up-and-coming candidate for CO2 capture from flue gas.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Light-Science & Applications
·
2022
·Vol. 11
·期 1
·1-10
·
IF 20.257
Yu Peng,Cao Sheng,Shan Yuliang,Bi Yuhe,Hu Yaqi,Zeng Ruosheng,Zou Bingsuo,Wang Yunjun,Zhao Jialong
InP-based quantum dot light-emitting diodes (QLEDs), as less toxic than Cd-free and Pb-free optoelectronic devices, have become the most promising benign alternatives for the next generation lighting and display. However, the development of green-emitting InP-based QLEDs still remains a great challenge to the environmental preparation of InP quantum dots (QDs) and superior device performance. Herein, we reported the highly efficient green-emitting InP-based QLEDs regulated by the inner alloyed shell components. Based on the environmental phosphorus tris(dimethylamino)phosphine ((DMA) 3 P), we obtained highly efficient InP-based QDs with the narrowest full width at half maximum (~35 nm) and highest quantum yield (~97%) by inserting the gradient inner shell layer ZnSe x S 1−x without further post-treatment. More importantly, we concretely discussed the effect and physical mechanism of ZnSe x S 1– x layer on the performance of QDs and QLEDs through the characterization of structure, luminescence, femtosecond transient absorption, and ultraviolet photoelectron spectroscopy. We demonstrated that the insert inner alloyed shell ZnSe x S 1− x provided bifunctionality, which diminished the interface defects upon balancing the lattice mismatch and tailored the energy levels of InP-based QDs which could promote the balanced carrier injection. The resulting QLEDs applying the InP/ZnSe 0.7 S 0.3 /ZnS QDs as an emitter layer exhibited a maximum external quantum efficiency of 15.2% with the electroluminescence peak of 532 nm, which was almost the highest record of InP-based pure green-emitting QLEDs. These results demonstrated the applicability and processability of inner shell component engineering in the preparation of high-quality InP-based QLEDs.
研究领域:
材料科学
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光电子学
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纳米技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）