Functional Materials Letters最新文献

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CdS@CS/PVA Inverse Opal Films as Photocatalyst 作为光催化剂的 CdS@CS/PVA 逆欧泊薄膜

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-04-19 DOI: 10.1142/s1793604724510317

Jian-Qiu Huang, Zhaoran Chu, Junling Li, Wenting Shao, Wenwei Tang, Xuanjun Ning, Cheng Chen

引用次数: 0

Carbon coated TiNb2O7 microspheres with partial nitridation for high-performance lithium storage 用于高性能锂存储的部分氮化碳涂层 TiNb2O7 微球

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-04-19 DOI: 10.1142/s1793604724500140

Yi Lei, Qiang Yuan, Yan Zhao, Lei Wang, Zhongzhu Liu, Robson Monteiro, Luanna Parreira, Rogerio Ribas, Aimin Guo, Chunfu Lin

引用次数: 0

Research on the Application of WO3 Gas Sensor Based on Noble Metals Modification in Cable Fire Detection 基于贵金属改性的 WO3 气体传感器在电缆火灾探测中的应用研究

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-04-19 DOI: 10.1142/s1793604724500139

Dongting Yao, Qiming Qin, Zhenkun Lu, Xiang Pan, Youbin Xia, Yin Cheng

引用次数: 0

Spray Pyrolysis Deposited NiO Film as a Hole-Injection Layer for CsPbBr3 Nanocrystal–Based Light-Emitting Diodes 喷雾热解沉积氧化镍薄膜作为铯硼溴三纳米晶发光二极管的注孔层

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-04-11 DOI: 10.1142/s1793604724510299

Thi-My-Hanh Nguyen, P. Tran, Quoc-Tuan Le, Quoc-Dat Le, Van-Duong Luong, Cao-Ngoc-Hong Nguyen, Thanh-Tung Duong

引用次数: 0

Bimetallic Fe/Co nanoalloy embedded in porous carbon as electrochemical sensor for acetaminophen detection 嵌入多孔碳的双金属铁/钴纳米合金作为电化学传感器检测对乙酰氨基酚

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-04-11 DOI: 10.1142/s1793604724510305

Zi-An Zhao, Qing-Yu Zhang, Yu-Long Li, Haibing Wu, Yu Luo, Xue-Meng Jia, Dongen Zhang

引用次数: 0

In situ preparation of two-dimensional mortise and tenon structure g-C3N4/MoO3 photocatalyst for the reduction of aqueous Cr(VI) 原位制备二维榫卯结构 g-C3N4/MoO3 光催化剂以还原水溶液中的 Cr(VI)

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-04-05 DOI: 10.1142/s1793604724510287

Xinzhuo Wu, Shaojie Chen, Zhao Li, Lin Tian, Zongfei Yang, Jing Li

引用次数: 0

Fabricating waxberry-shaped N-C-TiO2 composite with excellent visible light catalytic activity 制备具有优异可见光催化活性的蜡梅形 N-C-TiO2 复合材料

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-04-05 DOI: 10.1142/s1793604724510275

Fengyang Zhao, Runmeng Yu, Yongjian Jiang

引用次数: 0

Efficient degradation of ciprofloxacin by waste eggshells derived ES/CuS heterostructure under visible light 废蛋壳衍生 ES/CuS 异质结构在可见光下高效降解环丙沙星

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-03-26 DOI: 10.1142/s1793604724510196

Guanghong Zhao, Yuan Wei, Yubing Liu, Chao Liu, Hongyu Wang, Xin Li, Ronghui Liu, Yanyan Jiang, Yulan Zhang, Yuhui Gao, Gaofeng Shi, Guoying Wang

The transformation of discarded eggshells (ES) into high value-added materials through technological means and the realization of turning waste ES “stone into gold” are of great significance to the environment and sustainable economic development. CuS is a typical semiconductor with broad and powerful light absorption properties, which is widely used in photocatalytic wastewater remediation. However, the high recombination rate of CuS photogenerated electron-hole pairs limits its application. In this study, a novel waste eggshell-derived ES/CuS heterojunction photocatalyst is innovatively constructed using an adsorption-precipitation method to realize the efficient degradation of ciprofloxacin (CIP) under visible light. The results showed that the ES/CuS heterojunction photocatalyst, under visible light irradiation, could degrade CIP (20 mg/L) with a degradation efficiency of 93.7% at 5 h (including 1 h of dark reaction), which compared to the degradation efficiency of CuS (52.3%) its CIP removal was significantly increased by a factor of 1.78, and showed good stability and reusability. The superior CIP degradation performance is mainly attributed to the introduction of ES to improve the separation efficiency of CuS photogenerated carriers and can participate in redox reactions through the formation of e $^{-}$ and h $^{+}$ on the surface of heterojunctions under visible light irradiation, which generation of oxidizing powerful .O₂ $^{-}$ radicals which can also directly oxidize CIP. This work provides a new perspective on the reuse of waste ES and the design of CuS catalysts.

通过科技手段将废弃蛋壳（ES）转化为高附加值材料，实现废弃蛋壳 "点石成金"，对环境和经济可持续发展具有重要意义。CuS 是一种典型的半导体，具有广泛而强大的光吸收特性，被广泛应用于光催化废水处理。然而，CuS 光生电子-空穴对的高重组率限制了其应用。本研究采用吸附沉淀法创新性地构建了一种新型废蛋壳衍生ES/CuS异质结光催化剂，实现了环丙沙星（CIP）在可见光下的高效降解。结果表明，ES/CuS异质结光催化剂在可见光照射下，5 h（包括1 h暗反应）降解CIP（20 mg/L）的效率为93.7%，与CuS的降解效率（52.3%）相比，其CIP去除率显著提高了1.78倍，并表现出良好的稳定性和可重复使用性。卓越的 CIP 降解性能主要归功于 ES 的引入，ES 提高了 CuS 光生载流子的分离效率，并能在可见光照射下通过在异质结表面形成 e- 和 h+ 参与氧化还原反应，从而产生氧化性强的 .O2- 自由基，这些自由基也能直接氧化 CIP。这项工作为废 ES 的再利用和 CuS 催化剂的设计提供了一个新的视角。

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引用次数: 0

Influence of 2D CuxAl(100−x) electrodes on the CuxAl(100−x)/Cu21(SiO2)79/W memristive device 二维 CuxAl（100-x）电极对 CuxAl（100-x）/Cu21（SiO2）79/W 记忆器件的影响

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-03-12 DOI: 10.1142/s1793604724510184

Bin Gu, Guangyu Wen, Bo Zhang, Jhonatan Rodriguez-Pereira, Tomas Wagner

In recent years, 2D metal nanomaterials have emerged as a novel class of 2D materials owing to their unique physiochemical properties. In this paper, memristive devices (Cu $_{x}$ Al $_{(100 -}$ $_{x}$ $_{)}$ (BE)/Cu $_{21}$ (SiO₂) $_{79}$ /W(TE)) were fabricated utilizing 2D Cu $_{x}$ Al $_{(100 -}$ $_{x}$ $_{)}$ materials with different compositions as electrodes. After exfoliation by sonication, the minimum thickness of the freestanding single layer of 2D Cu $_{x}$ Al $_{(100 -}$ $_{x}$ $_{)}$ was only 1.5 nm. Furthermore, the distribution of SET thresholds was determined by the composition of the 2D Cu $_{x}$ Al

近年来，二维金属纳米材料因其独特的物理化学特性而成为一类新型的二维材料。本文利用不同成分的二维 CuxAl (100-x) 材料作为电极，制备了记忆性器件（CuxAl(100-x)(BE)/Cu 21(SiO2)79/W(TE)）。经超声剥离后，二维 Cux Al（100-x）独立单层的最小厚度仅为 1.5 nm。此外，二维 CuxAl（100-x）材料的成分决定了 SET 门限的分布。结果表明，SET 和 RESET 阈值可根据二维 CuxAl（100-x）材料的成分进行调整。二维金属作为电极在微型记忆器件中的应用前景广阔。

引用次数: 0

Electronic properties of individual CsPbI2Br nanocrystals investigated by LT-STM 利用 LT-STM 研究单个 CsPbI2Br 纳米晶体的电子特性

IF 1.3 4区材料科学 Q3 Materials Science

Functional Materials Letters

Pub Date : 2024-03-12 DOI: 10.1142/s1793604724500103

Jianmin Li, Han Zhao, Kang Ma, Yikai Fu, Haitao Dai, Zhixiang Sun, Hong-Ying Gao

Solution-processed metal halide perovskite nanocrystals show promise for various potential optoelectronic applications and the exploration of the fundamental physics underlying them. However, the electronic properties of individual nanocrystals have not been thoroughly studied. Here, we applied low-temperature scanning tunneling microscopy to investigate the properties of metal halide perovskite CsPbI₂Br nanocrystals with a diameter in the range of 10–20 nm. Sub-monolayer dispersions of the nanocrystal on highly oriented pyrolytic graphite and gold thin film substrates were achieved. Using scanning tunneling microscopy, we resolved topographies of individual nanocrystals on the gold film, and their electronic properties were probed by scanning tunneling spectroscopy. In our experiment, no obvious dependence of the extracted energy gap on the nanocrystal size and shape was found, which is consistent with the reported small exciton Bohr radius in metal halide perovskite materials. Additionally, we observed that the energy gaps of some nanocrystals are smaller than that of the bulk, suggesting the influence of factors such as deep-level defects/traps, ion migration, etc. on the electronic structure.

溶液加工的金属卤化物过氧化物纳米晶体在各种潜在的光电应用和探索其基础物理学方面展现出广阔的前景。然而，人们尚未对单个纳米晶体的电子特性进行深入研究。在此，我们应用低温扫描隧道显微镜研究了直径在 10-20 纳米范围内的金属卤化物包晶 CsPbI2Br 纳米晶体的特性。在高取向热解石墨和金薄膜基底上实现了纳米晶体的亚单层分散。我们利用扫描隧道显微镜解析了金薄膜上单个纳米晶体的形貌，并通过扫描隧道光谱探测了它们的电子特性。在我们的实验中，没有发现提取能隙与纳米晶体的大小和形状有明显的关系，这与所报道的金属卤化物过氧化物材料中激子玻尔半径较小的情况一致。此外，我们还观察到一些纳米晶体的能隙小于块体的能隙，这表明深层缺陷/陷阱、离子迁移等因素对电子结构有影响。

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引用次数: 0

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