JOURNAL OF THE INDIAN CHEMICAL SOCIETY
·
2025
·
IF 3.4
Qi Shi,Siqi Huang,Qi Xi,Yanan Niu,Nuan Wen,Libo Du,Yuguang Lv,Tai Peng
In this study, Ti 3 C 2 quantum dots (QDs) were prepared via a simple hydrothermal method and loaded onto binary catalytic materials to construct ternary PTCN/SnS 2 /Ti 3 C 2 QDs composites for enhancing photocatalytic performance. The materials were characterized using techniques such as XRD, TEM, FT-IR, UV–vis, BET, XPS, and PL. The results showed that Ti 3 C 2 QDs were uniformly dispersed on the surface of PTCN/SnS 2 , forming a stable heterostructure. The specific surface area increased to 68.847 m 2 /g (5.6 times higher than that of PTCN), the visible light absorption edge redshifted to 532 nm, and the band gap narrowed to 2.1 eV. Under visible light, the composite exhibited degradation rates of 90.53 %, 79.53 %, 81.23 %, and 85.62 % for norfloxacin, pefloxacin, enrofloxacin, and ciprofloxacin, respectively. At the optimal doping amount (k = 0.0408 min −1 ), the catalytic activity was 6.21 times that of pure PTCN and 2.87 times that of PTCN/SnS 2 . Cyclic experiments demonstrated excellent stability of the composite, with a degradation rate remaining at 86 % after 5 cycles. This study is the first to construct the PTCN/SnS 2 /Ti 3 C 2 QDs ternary system and propose a Z-scheme charge transfer mechanism, providing new insights for the design of high-efficiency photocatalytic materials.
研究领域:
材料科学
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环境科学
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纳米技术
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催化
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化学工程
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Yajie Zhang,Mengyu Yuan,Xiaoyu Luo,Jinyue Zheng,Huilan Su,Li Mao,Zhaoqiong Chen
Tin disulfide (SnS 2 ) nanoplates demonstrate remarkable potential in NO 2 detection due to their unique physical affinity to NO 2 . However, SnS 2 nanoplate-based sensors suffer from high operating temperatures, inadequate sensitivity, and slow recovery due to intrinsic low conductivity and self-stacking issues. To address these challenges, we fabricated vanadium tetrasulfide/SnS 2 (VS 4 /SnS 2 ) composites via a facile hydrothermal method. Results reveal that the addition of VS 4 significantly reduces the resistance of SnS 2 -based sensor. The sensitivity (1.64 ppm −1 ) of the optimized VS 4 /SnS 2 (1:1) sensor to 1 −5 ppm NO 2 is 546.67 times higher than that of the pristine VS 4 sensor. The sensor exhibits ultrafast complete recovery (2.25 s) and a low limit of detection (90 ppb) at 25 ℃. In addition, the VS 4 /SnS 2 (1:1) sensor displays reliable repeatability, outstanding selectivity and long-term stability. These breakthroughs originate from the formation of n-n junctions and a unique three-dimensional hierarchical structure. This work demonstrates a scalable approach for developing highly sensitive and rapid SnS 2 -based NO 2 sensors operating at room temperature.
研究领域:
材料科学
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传感器
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纳米技术
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环境监测
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气体检测
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DOI
高影响因子
CATALYSIS LETTERS
·
2018
·Vol. 148
·期 7
·1990-2000
·
IF 2.911
Zhang Kai,Zhang Yunhai,Zhang WanJu
Abstract A kind of 2D/2D heterojunction photocatalysts was constructed by a facile in situ hydrothermal method that a tetragonal CuInS 2 nanosheets was horizontal loaded in ultrathin hexagonal SnS 2 nanosheets. Contrasted to pure CuInS 2 and SnS 2 nanosheets, the CuInS 2 /SnS 2 nano-heterojunctions revealed a noteworthy improvement photocatalytic activity under visible light irradiation for the degradation of organic dyes, which should be attributed to the narrowest band gap and the efficient charge separation and transfer improving the contact region in heterojunction interface. Especially, with 0.5 wt% addition of CuInS 2 , the heterojunction nanosheets shows a supreme visible-light photocatalytic activity and a superb degradation efficiency which reached 99% in 60 min with the solution of methyl orange. Moreover, CuInS 2 /SnS 2 nano-heterojunctions deliver excellent reusability in five degradation–regeneration cycles. The results indicated that CuInS 2 /SnS 2 has a promising prospect in organic pollutant treatment due to high efficiency and excellent stability. Graphical Abstract
研究领域:
材料科学
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环境科学
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化学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Ruiyuan Zhuang,Yuxin Wang,Junhong Wang,Jianfeng Zhan,Jiangnan Yan,Yongqing Li,Yaru Chen,Wenhui Mo,Jian-chun Wu,Jianhong Yang,Lixiang Wang
Aluminum ion batteries (AIBs) are deemed an encouraging prospect for energy storage applications owing to their beneficial attributes, including considerable theoretical specific capacity, heightened safety measures, affordability, and plentiful availability of materials. However, the inherent characteristics of cathode materials have greatly limited the further development of AIBs. In this work, SnS 2 @CNFs composites were prepared via a combination of hydrothermal and electrospinning strategy. Specifically, SnS 2 nanosheets, resembling flakes in their two-dimensional form, uniformly coated on the carbon fibers, forming a three-dimensional interconnected network seamlessly integrated with the continuous carbon substrate. This structure is conducive to shortening the ion transmission path, ensuring sufficient electrolyte contact, and facilitating electron transfer and transfer at the phase interfaces. As a self-supporting electrode for AIBs, the SnS 2 @CNFs electrode exhibited remarkable cyclability, retaining a residual capacity of approximately 70 mA h g −1 with a Coulombic efficiency close to 97 % after 500 cycles at 100 mA g −1 . The good cycle stability originates from the flexible carbon substrate effectively alleviating the volume expansion phenomenon caused by ion deintercalation in SnS 2 . In addition, first-principles calculations show that the substitution behavior of aluminum atoms in SnS 2 crystals exhibits obvious selectivity, but exceeding the energy threshold of conventional substitution reactions indicates that reactions are unlikely to occur. By constructing models to explore the embedding path of aluminum ions in SnS 2 crystals, the results showed that the embedding behavior mainly occurs in the van der Waals gap interstitial rather than within the crystal monolayer, and the sulfur atom top position is used as the optimal embedding site.
研究领域:
材料科学
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电化学
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计算物理学
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
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2025
·
IF 9.5
Li-Yuan Wu,Fei Zhang,Ming-Zhe Cai,Min Zhang,Tong-Bu Lu,Ping Li,Yong-Hua Chen
Z-Scheme heterojunctions with strong redox capability and efficient photoinduced carrier separation are critical for sunlight-driven CO2 conversion, yet their optimal structural arrangement remains to be improved. Herein, we report a 2D/2D CsPbBr3/SnS2 nanosheet hybrid system featuring an extensive interfacial contact area that facilitates photoinduced carrier transfer. The inbuilt electric field directs photoinduced electrons to accumulate on CsPbBr3, while holes migrate to SnS2, thereby enhancing their respective redox capabilities. This system achieves a maximum CO rate of 75.6 µmol g−1 h−1, representing a 32.8-fold and 3.5-fold improvement compared to pristine 2D SnS2 and CsPbBr3–OA, respectively. Electrochemical characterization reveals that interlayer hybridization synergistically enhances both interfacial carrier transfer and surface redox ability. The electrostatic assembly approach enables the controlled synthesis of various CsPbBr3/SnS2 composites with tunable SnS2 ratios, providing a generalizable strategy for the precise fabrication of dual crystal facet-exposed catalysts.
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DOI
高影响因子
Journal of the American Chemical Society
·
2019
·
IF 14.695
Xu-Dong Wang,Yu-Hua Huang,Jin-Feng Liao,Yong Jiang,Lei Zhou,Xiao-Yan Zhang,Hong-Yan Chen,Dai-Bin Kuang
Heterojunction engineering has played an indispensable role in the exploitation of innovative artificial materials with exceptional properties and has consequently triggered a new revolution in achieving high-performance optoelectronic devices. Herein, an intriguing halide perovskite (PVK) and metal dichalcogenide (MD) heterojunction, i.e., a lead-free Cs2SnI6 perovskite nanocrystal/SnS2 nanosheet hybrid, was fabricated in situ for the first time. Comprehensive investigations with experimental characterizations and theoretical calculations demonstrate that cosharing of the Sn atom enables intimate contact in the Cs2SnI6/SnS2 hybrid together with a type II band alignment structure. Additionally, ultrafast carrier separation between SnS2 and Cs2SnI6 has been observed in the Cs2SnI6/SnS2 hybrid by transient absorption measurements, which efficiently prolongs the lifetime of the photogenerated electrons in SnS2 (from 1290 to 3080 ps). The resultant spatial charge separation in the Cs2SnI6/SnS2 hybrid evidenced by Kelvin probe force microscopy (KPFM) significantly boosts the photocatalytic activity toward CO2 reduction and the photoelectrochemical performance, with 5.4-fold and 10.6-fold enhancements compared with unadorned SnS2. This work provides a facile and effective method for the in situ preparation of PVK-MD heterojunctions, which may significantly stimulate the synthesis of various perovskite-based hybrid materials and their further optoelectronic applications.
研究领域:
材料科学
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纳米技术
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光化学
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光电学
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产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Lankun Shi,Rongji Jiao,Haimei Liang,Yue Zhao,Boyu Sun,Dawei Lan,Kun Liu,Xiaoxia Chen,Zhongmin Lang,Jinlong Cui
SnS 2 has attracted widespread research attention as an anode material for sodium-ion batteries (SIBs) because of its excellent theoretical specific capacity. Unfortunately, its practical application is hindered by its inherently low conductivity, substantial volume expansion during cycling, and particularly the unsatisfactory initial Coulombic efficiency (ICE). Here, carbon particles from walnut shells were anchored onto SnS 2 microspheres composed of interwoven nanosheets via a one-step hydrothermal method to synthesize SnS 2 /C composites. C particles on the surface of SnS 2 microspheres can effectively mitigate structural degradation caused by volume expansion during (dis)charge cycles. The incorporation of amorphous C helps maintain the structural integrity of SnS 2 and facilitates the formation of a stable solid electrolyte interphase (SEI) film. Furthermore, it reduces the binding energy between Sn and Na 2 S, thereby enhancing the reversibility of SnS 2 regeneration during the charging process. In addition, carbon particles suppress the sulfur shuttle effect through both chemical and physical interactions. Consequently, the synthesized SnS 2 /C composite demonstrates a substantial specific capacity of 621.2 mAh g -1 along with an enhanced ICE of 88.4 % at 0.1 A g -1 . Moreover, it exhibits an excellent cycling stability, retaining a specific capacity of 432.9 mAh g -1 after 950 cycles at 2.0 A g -1 . The enhanced Na + storage capability of SnS 2 /C anode contributes to the outstanding rate performance and cycling durability of constructed SIB full cell, indicating its promising applicability in high-performance practical scenarios.
研究领域:
储能
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材料科学
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电化学
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纳米技术
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电池技术
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2023
·
IF 10.9
Zhen Wan,Qihang Mao,Jingjing Xiang,Dongge Ma,Heqing Tang
A composite of SnS 2 and carbon nanotube (CNT) was successfully synthesized as a visible-light-driven photocatalyst with a mechanochemical method. In comparing with SnS 2 , the SnS 2 /CNT composite improved much the photocatalytic removal of Cr(VI) in acidic condition, which was confirmed to its special solid acid structure. During the synthesis of the SnS 2 /CNT composite by ball milling, S-C p-π bonding was formed between sulfur atoms in SnS 2 and carbon atoms in CNT. The generated S-C p-π bonding enhanced the transfer of photo-induced electrons in the bulk phase of the composite photocatalyst under visible light irradiation. Moreover, the persistent radical sites on CNT were able to trap photo-induced electrons and served as conjugated acid sites in the photocatalysis, which increased surface concentration of protons through their association with H + . These made the catalyst have a solid acid structure with plentiful surface protons, promoting the interfacial electron transfer between the catalysts and Cr(VI) and increasing the source of H + for the reduction of Cr(VI). As a result, the photocatalytic reduction rate of Cr(VI) on the SnS 2 /CNT composite were dramatically enhanced, being about 800% that on SnS 2 . On the basis of various characterizations and probe experiments, we confirmed the significance of the solid acid structure of the photocatalyst and clarified the catalytic mechanism of the new photocatalyst. Our finding may provide a new strategy to prepare highly active photocatalysts for proton-involved reactions.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
JOURNAL OF POWER SOURCES
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2024
·
IF 8.1
Yuting Tang,Fei Wang,Chang Nie,Haoxi Dong,Yiming Bai,Mingshu Zhao,Sen Yang
Current application of SnS 2 -based anodes in sodium-ion batteries fails to meet the demand for higher Na + storage capacity due to the structural pulverization induced by significant volume changes during cycling. Herein, a novel composite of hollow C@SnS 2 /SnS@C cubes with excellent diffusion kinetics and structural stability from stepwise Na + storage is designed. The SnS with gentle pseudocapacitive reaction acts as the self-supporter to prevent the collapse of SnS 2 /SnS heterostructure during the Na + insertion/extraction. Together with the clamping of double carbon layers and hollow construction, the volume change caused structural instability in heterostructure is effectively alleviated. The rapid transport of electrons and ions within the built-in electric field of heterostructure endows the composite an excellent diffusion kinetics, which is generated from the narrow bandgap and outstanding Na + absorption of heterostructure according to the first-principle calculation. Thus, the as-prepared composite maintains a remarkable capacity of 547.9 mAh g −1 after 200 cycles at current density of 0.5 A g −1 . Even a capacity of 502.5 mAh g −1 with a low attenuation rate of 0.035 % per cycle is achieved at 2 A g −1 after 1000 cycles. The work proposes an effective approach to achieve effective Na + storage of SnS 2 -based anodes with long-lasting structural stability.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Rongzhong Wang,Yaqian Zhang,Xuemei Sun,Qingyan Zhang,Zhaowen Cheng,Wenjing Xue,Qingyi Zeng
Resourceful treatment of wastewater is a promising way to facilitate sustainable development. Recently, photocatalytic fuel cells (PFCs) have attracted widespread attention as the method that can synchronously achieve wastewater treatment and clean energy production only depend on light. However, few PFCs focused on treating complex uranium (U(VI))-organic wastewater. This study prepared a SnS 2 nanoplate decorated carbon felt (SnS 2 /CF) material by facile hydrothermal method and used as the cathode to construct a hybrid tandem photocatalytic fuel cell (HTPFC) system. Compared to the CF-HTPFC, the removal efficiencies of U(VI) and tetracycline hydrochloride (TCH) increased to 3.4 and 1.8 times in the SnS 2 /CF-HTPFC system, accompanied with the reaction rate ( k obs ) values increased to 30.39 and 3.78 times, respectively. More importantly, under real sunlight irradiation (From 10:00 to 16:00), the removal efficiencies of U(VI) and TCH respectively reached 92.49 % and 97.96 %, and the P max reached 6.49 mW·cm −2 . HTPFC also displayed satisfactory performances in treating r adioactive wastewater containing different organic compounds, with the removal efficiencies of U(VI) and organic compounds both exceeded 93.35 %. The loading of SnS 2 nanoplates enhanced electrochemical performance and introduced abundant S active sites, allowing more U(VI) to be adsorbed and reduced, and simultaneously promoting the removal of organic matter by improving the charge separation efficiency.
研究领域:
环境科学
·
材料科学
·
能源科学
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zijian Zhang,Xiuyang Tang,Yu Gao,Xinming Ma,Kaihan Chang,Lipin Chen,Song Xue,Gangri Cai,Jin Shi Zhao
Two-dimensional (2D) materials have drawn extensive interest for applications in thin-film electronics, optoelectronics, and sensing. Among them, tin disulfide (SnS 2 ) is particularly attractive owing to its low cost, environmental friendliness, and excellent chemical and thermal stability. Importantly, the synthesis and deposition strategies for 2D materials play a critical role in controlling sulfur vacancies, tuning crystal phase and morphology, and ultimately determining device performance. Here, we demonstrate a solution-processed memristor based on SnS-SnS 2 composite thin films fabricated by spin-coating followed by sequential thermal reduction. Partial conversion of SnS 2 into SnS produces a phase-engineered architecture, where vertically aligned SnS domains are embedded within the SnS 2 matrix. Optimizing the SnS/SnS 2 ratio enhances resistive switching (RS) characteristics and synaptic emulation. The improved device behavior is mainly attributed to the controlled generation and migration of sulfur vacancies, together with internal phase modulation enabled by the vertical stacking structure. This scalable, low-temperature strategy provides a promising route toward high-performance neuromorphic memory devices.
研究领域:
材料科学
·
纳米电子学
·
神经形态计算
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薄膜技术
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产品关联
DOI
高影响因子
Nano-Micro Letters
·
2019
·Vol. 11
·期 1
·1-12
·
IF 9.043
Ren Zongling,Wen Jie,Liu Wei,Jiang Xiaoping,Dong Yanheng,Guo Xiaolong,Zhao Qiannan,Ji Guipeng,Wang Ronghua,Hu Ning,Qu Baihua,Xu Chaohe
Layered SnS 2 nanosheets/reduced graphene fiber (SnS 2 @rGF) hybrid fabrics were fabricated as binder-free electrodes.
Ultralight rGF fabrics could increase the active materials loading to a high level of 67.2 wt% in the whole electrode, which is much higher than that of traditional slurry coating electrodes by using Cu or Al foil as current collectors.
The practical capacity based on the weight of electrode could increase to as high as ~ 538 mAh g −1 exceeding to the slurry coating electrodes.
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
危险品化学品经营许可证（带存储）