ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Shuo Yuan,Chao Fan,He Tian,Yonghui Zhang,Zihui Zhang,Mianzeng Zhong,Hongfei Liu,Mengjun Wang,Erping Li
Doping of tin disulfide (SnS2) is an effective strategy to regulate its physical and chemical properties. In this work, In doping was used to manipulate the photoresponse behavior of SnS2-based photodetectors. In-doped SnS2 nanosheets were synthesized via a facile hydrothermal method. It was found that the In doping concentration plays an important role in the size of the fabricated SnS2 nanosheets. With the increase in the In doping concentration, the lateral size of samples increased from ∼210 to ∼420 nm, but the crystallinity became poor at higher concentrations. Energy dispersive X-ray-mapping results show that the In was homogeneously distributed in the samples. In addition, a red shift was observed in the binding energy of Sn and S with increased In doping concentration, which may be due to the p-type doping of In in SnS2. After In doping, the performance of SnS2-based photodetectors was significantly improved. The photoresponse speed of In-doped SnS2-based photodetectors was faster than that of pristine SnS2-based devices under the illumination of 532 and 405 nm lasers. This work develops an effective approach of In doping to enhance the photoresponse characteristics of SnS2-based photodetectors and proves that In-doped SnS2 has a vast potential in optoelectronic applications.
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
CRYSTENGCOMM
·
2021
·Vol. 23
·期 26
·4694-4699
·
IF 3.545
Xiancheng Meng,Chao Fan,Xia An,Shuo Yuan,Yongkai Jing,Zhe Liu,Chun Sun,Yonghui Zhang,Zihui Zhang,Mengjun Wang,Hongxing Zheng,Erping Li
Tin disulfide has attracted enormous interest due to its excellent optical and electronic properties for future optoelectronic applications, especially high-performance photodetectors. Nevertheless, SnS2-based photodetectors still face great challenges for practical applications, such as low responsivity and slow response speed. Herein, the enhanced photoresponse characteristics of aluminum (Al)-doped SnS2 nanosheets were investigated. Al-doped SnS2 nanosheets were synthesized by using a convenient and high-yield hydrothermal technique, and high purity and high crystallinity were confirmed by SEM, XRD, Raman spectroscopy, XPS, and TEM. Al atoms were homogeneously introduced into SnS2 nanosheets, leading to a slight increase in lateral size from 185.4 nm to 196.9 nm and thickness from 13.5 nm to 17.9 nm. Then, photodetectors based on Al-doped SnS2 nanosheets were built and characterized. Compared to pristine SnS2, the photoresponse performance of the Al-doped SnS2 nanosheets was significantly improved. In particular, the response time was reduced by nearly two orders of magnitude from 1040 ms to 51 ms. The responsivity was increased one hundredfold, from 0.79 mA W−1 to 15.16 mA W−1. The photoresponse characteristics are prominently enhanced due to Al-doping induced band gap narrowing. Our findings provide an effective approach to improve the photoresponse performance of SnS2 and pave the way for further optoelectronic applications of SnS2.
研究领域:
材料科学
·
纳米科技
·
光电子学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Linzi Huang,Chenxi Wang,Yaqi Yang,Yilin Wang,Chunyan Li,Yixi Xie,Pengcheng Zhao,Junjie Fei
The ecological environment and public safety are seriously threatened by the typical phenolic contaminant hydroquinone (HQ). Here, using a straightforward physical mixing technique, we created an n - n heterojunction by uniformly immobilizing cadmium sulfide (CdS) nanoparticles on the surface of a three-dimensionally layered, flower-like structure made of tin sulfide (SnS 2 ). Then, as photosensitizers , carbon nanotubes (CNTs) were added to the CdS/SnS 2 complex to create a type-II heterostructure of CdS/SnS 2 /CNTs with synergistic effects. Subsequently, the detector HQ was bound to the modified photoelectrodes , which was accompanied by the hole oxidation of the bound HQ, leading to a significant increase in the photocurrent signal, thus allowing specific and sensitive detection of HQ. Under optimized detection conditions, the proposed photoelectrochemical sensor shows a wide detection range of 0.2 to 100 μM for HQ with a detection limit as low as 0.1 μM. The high accuracy of the sensor was demonstrated by comparison with the detection results of UV–vis spectrophotometry . In addition, the photoelectrochemical sensor exhibits good reproducibility, stability, selectivity , and specificity, providing a light-driven method to detect HQ.
研究领域:
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DALTON TRANSACTIONS
·
2024
·Vol. 53
·期 45
·18175-18182
·
IF 3.5
Weiao Kong,Xiaohan Lin,Chuanhe Wang,Gen Li,Zhiqiang Xue,Shoubing Wang,Yani Zhang,Zhidong Liu,Huanian Zhang,Min Zhang,Wei Ding,Liping Guo,Shugang Tan
In this work, we synthesized composites of ferrous disulfide and tin disulfide with multi-walled carbon nanotubes (MWCNTs) using a straightforward hydrothermal method. The incorporation of carbon nanotubes significantly enhanced the dielectric loss capability of the composites. When the filling ratio of FeS2/SnS2@CNTs (20 wt%) in paraffin was 40%, the effective absorption bandwidth was 3.28 GHz, while the minimum reflection loss (RL) value was as high as −39.2 dB, which corresponded to a thickness of only 1.4 mm. This work reveals the potential research value of this material in terms of thin thickness, strong absorption and light mass.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2021
·
IF 4.759
Lizhen Qiao,Chunmei Yu,Ruiting Sun,Yuan Tao,Yumeng Li,Yang Yan
In the present work, three-dimensional (3D) and flower-like SnS 2 materials were coated on the surface of Fe 3 O 4 @nSiO 2 through an in-situ growth method. The 3D architecture could avoid the accumulation and reaggregation with better stability and was beneficial for the exposure of more active sites. The prepared magnetic SnS 2 composites were used for the enrichment of sulfonamide antibiotics (SAs), and various experimental parameters affecting the extraction efficiency were investigated. The results showed the equilibrium of extraction and desorption towards target SAs could be reached within 3 min by using the Fe 3 O 4 @nSiO 2 -SnS 2 composites. Under optimized conditions, the proposed approach possessed good linearity in the range of 0.1-200 ng·mL −1 with correlation coefficients r 2 above 0.9964 and low limits of detection (LODs) from 0.025 to 0.250 ng·mL −1 for the five target SAs. Moreover, good repeatability was obtained with the intra-day and inter-day precision in terms of relative standard deviations (RSDs) within 1.1%-10.8% and 7.4%-13.1%, and the recoveries under three spiked concentrations were between 81.8% and 119.7% with adequate accuracy. Different samples including tap water, milk and honey were collected for magnetic solid-phase extraction and determination of target SAs by using the obtained Fe 3 O 4 @nSiO 2 -SnS 2 composites to demonstrate the utility. All the results indicated that the proposed method had great potential for effective preconcentration and determination of SAs in complex samples.
研究领域:
分析化学
·
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2018
·Vol. 29
·期 23
·19614-19619
·
IF 2.324
Hu Yiwei,Chen Xinhang,Ren Xiaohui,Huang Zongyu,Qi Xiang,Zhong Jianxin
Tin disulfide (SnS 2 ) has been attracted intensive attention in the field of photoelectric conversion due to its appropriate band gap and glorious electronic mobility. The hexagon SnS 2 nanosheets has been successfully integrated through a facile one-pot hydrothermal method. SEM images, Raman spectra, atomic force microscope and X-ray diffraction patterns are measured to carry out to investigate the morphologies and microstructures of SnS 2 nanosheetsm, confirming a good crystallized SnS 2 . Then, the photochemical activity of as-prepared SnS 2 nanosheets were tested in the electrolyte of Na 2 SO 4 . Photoelectrochemical tests demonstrate that the photocurrent density of as-prepared hexagon SnS 2 nanosheets (1.66 µA/cm 2 at a light intensity of 140 mW/cm 2 ) is hugely increased with increasing light intensity. Furthermore, after 50 cycles, the photocurrent density does not change significantly, indicating that the as-prepared SnS 2 nanosheets possesses superior stabilities. The outstanding photocatalytic performances of SnS 2 nanosheets are not only resulted from its huge specific surface area, which can harvest more light and provide more active sites, but also attributed to its superior charge mobility, which can facilitate the separation photogenerated electron–hole pairs and the charge transfer between SnS 2 nanosheets and the electrode. The most important is that our work reveals the hexagonal SnS 2 nanosheets not only possess superior photoelectrochemical properties, but also have great potential applications in energy conversion and photodetector fields.
研究领域:
材料科学
·
光催化
·
能源转换
·
纳米材料
·
光电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF CATALYSIS
·
2018
·
IF 6.759
Lin Hu,Xiu-Feng Song,Sheng-Li Zhang,Hai-Bo Zeng,Xue-Ji Zhang,Robert Marks,Dan Shan
The electrocatalytic hydrogen evolution reaction (HER) is one of the core components of energy conversions. The chemical-physical properties and morphological structures of electrocatalysts are the main factors that determine the HER performance. Thus, the rational design of efficient electrocatalysts is essentially required. A new heteronanostructured system is proposed, which comprises MoS 2 nanoparticles (MoS 2 NPs) coupled to SnS 2 ultrathin nanosheets (SnS 2 NS) and operates as an efficient HER electrocatalyst. Advanced spectroscopic techniques are applied to confirm formation of heteronanostructure and occurred electron modulation of MoS 2 NPs/SnS 2 NS. Surprisingly, the MoS 2 NPs/SnS 2 NS electrocatalyst is highly efficient for HER with a low overpotential (∼0.249 V at the current density of 10 mA cm −2 ), small Tafel slope (∼42.1 mV decade −1 ) and excellent electrocatalytical stability.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2025
·
IF 5.1
Yanning Xiang,Kaifeng Yu,Jian Guo,Ce Liang,Yi Li
In this article, porous carbon spheres (PCS) were ready by solvothermal technique mistreatment walnut shell polyose as a precursor, and SnS 2 composite conductor material (SnS 2 @PCS) was with success synthesized mistreatment it as a carrier. By consistently work the influence law of the addition quantity of porous carbon spheres on the chemistry performance of the stuff, it absolutely was found that once the addition quantity of PCS was 0.8 g (SnS 2 @PCS-8), the fabric exhibited the foremost wonderful chemistry performance: it still maintained a reversible specific capability of 1026 mAh g −1 once a hundred cycles at a 1C multiplication rate, and additionally incontestable wonderful athletics stability. The experiments confirmed that this inexperienced synthesis technique supported biomass waste not solely provides a brand new plan for the event of superior anode materials for lithium-ion batteries, however additionally achieves the high-value employment of biomass waste.
研究领域:
材料科学
·
储能
·
纳米技术
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Hemiao Wang,Yurui Wang,Xin Li,Xiaolian Liu,Xin Zheng,Yueqin Shi,Minxuan Xu,Jian Zhang,Qi Zhang
The insertion of a graphene interlayer between van der Waals (vdW) materials could suppress the interlayer recombination to improve interface quality and facilitate charge transport. However, its effect on photovoltaic-mode detectors has rarely been explored. Here, self-powered photodetectors based on WSe 2 /graphene/SnS 2 vdW heterojunctions were assembled and the impact of adding graphene interlayer on its performance was investigated. The p-g-n heterostructure exhibits a photovoltaic characteristic, V OC = 0.13 V and I SC = 0.12 nA under illumination of 2.98 mW/cm 2 @405 nm, lower than that of a control (WSe 2 /SnS 2 ) counterpart ( V OC = 0.19 V and I SC = 1.15 nA). Yet an FF value up to 48.16 % was obtained under an irradiation power density of 0.332 mW/cm 2 @405 nm, which is visibly higher than that of bare WSe 2 /SnS 2 vdW heterostructure . The insertion of graphene interlayer is deemed to reduce the charge traps between vdW materials that are caused by the large concentration difference of majority carriers. However, in case of vdW heterostructure, the subsequently increased leakage current makes the junction less ideal. Thereby interface engineering methods should be used with caution to tune vdW heterostructures on the nanoscale .
研究领域:
材料科学
·
光电子学
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2019
·
IF 4.85
Shikang Yin,Jinze Li,Linlin Sun,Xin Li,Dong Shen,Xianghai Song,Pengwei Huo,Huiqin Wang,Yongsheng Yan
Photocatalytic reduction of CO2 by semiconductors is of great significance in generating value-added fuels. Here, we construct a novel S–C–S heterojunction constituted of MoS2/SnS2/r-GO by a simple solvothermal method. The prepared MoS2/SnS2/r-GO showed significant photoexcitation of photosensitive oxygen (ROS) by electron spin resonance spectroscopy, demonstrating that superoxide radicals (•O2–), pores, and hydroxyl radicals (•OH) are the main active species. The constructed S–C–S heterojunction has a multilevel electron transport mechanism and synergistic effect, which provides the possibility of producing more organic fuel. The photocatalytic materials were characterized by XRD, XPS, SEM, TEM, PL, etc. As a result, the atomic layer MoS2/SnS2/r-GO heterojunction exhibited a CO formation rate of 68.53 μmol g–1 h–1 and a CH4 formation rate of 50.55 μmol g–1 h–1, respectively. This work opens up new prospects for the formation of heterojunctions of chalcogenide transition-metal sulfides.
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
DOI
PubMed
高影响因子
Energy Storage Materials
·
2021
·
IF 17.789
Xiujuan Wang,Sen Zhang,Yong Shan,Ling Chen,Guanyuan Gao,Xiaolin Zhu,Bin Cao,Xiaoming He
Molybdenum diselenide (MoSe 2 ) materials have aroused great attention for Li/K storage due to its high theoretical capacity and low cost. However, MoSe 2 often suffer from poor rate performances and unsatisfied cyclability for Li/K storage due to sluggish kinetics and the structure collapse upon cycling. Herein, a MoSe 2 -SnS heterostructure, SnS nanoparticles anchored at MoSe 2 -graphene matrix (SnS@MoSe 2 -GR), was constructed to improve rate performances and cyclability for Li/K storage. The heterointerfaces between MoSe 2 and SnS can generate unbalance charge distribution and thus induce an interfacial electric-field within the interfaces, which could accelerate charge-transfer kinetics and improve surface reaction kinetics. As a result, SnS@MoSe 2 -GR exhibit excellent electrochemical performances for Li/K storage. The electrochemical storage mechanisms of SnS@MoSe 2 -GR have been investigated by in situ and ex situ characterizations, and DFT calculations. Furthermore, the SnS@MoSe 2 -GR and porous carbon were used as anodes and cathodes to construct K-ion capacitors (KICs), the KICs exhibit an excellent rate performance, outstanding discharge capability and satisfied life-span (a high capacity retention of 93.3% after 5000 cycles). Our work provides new insights and understanding for the development of MoSe 2 based-anodes with high-performance and long-lifespan for Li/K storage.
研究领域:
材料科学
·
电化学
·
纳米能源
·
储能技术
·
固态物理
·
计算材料学
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2013
·
IF 3.777
Lingyan Wang,Linhai Zhuo,Yancun Yu,Fengyu Zhao
Two-dimensional (2D) SnS 2 nanoplates were synthesized through a facile hydrothermal method . The influences of reaction conditions such as temperature and pH on the size, crystallinity and the forming process of SnS 2 were investigated in detail. At low temperature (160 °C), the SnS 2 nanoplates showed poor crystallinity; while at higher temperatures above 200 °C, the crystallinity and thickness of the SnS 2 nanoplates tended to increase. In addition, pH had notable impact on the nucleation velocity of SnO 2 and the conversion speed from SnO 2 to SnS 2 in further as well. When used as anode materials in rechargeable lithium ion batteries , the SnS 2 nanoplates synthesized at 200 °C and pH = 10.5 (SnS 2 -200-10.5) showed the best lithium storage capacity, good cycling stability and excellent rate capability. It retained a high reversible capacity of 521 mA h g −1 over 50 cycles at a current of 100 mA g −1 , equal to 90.0% of the initial reversible capacity. In addition, the coulombic efficiency increased from 36% in the first cycle to over 97% in the subsequent cycles. Even at high current densities of 1, 2 and 3 A g −1 , the electrodes could still delivery as high as 472, 397 and 340 mA h g −1 , respectively. The enhanced electrochemical performance of the SnS 2 -200-10.5 can be attributed to the compact and regular crystal structure with a moderate thickness and crystallinity, which is beneficial for maintaining the stability of the structure and fast ion transport during lithiation/delithiation processes.
研究领域:
材料科学
·
电化学
·
纳米科技
·
能源存储
·
无机功能材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）