APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Kaihan Xue,Hang Chen,Biao He,Ruikang Wu,Chun Sun,Yonghui Zhang,Pengyu Zhou,Mengjun Wang,Hongxing Zheng,Chao Fan
Reduced graphene oxide (rGO) has attracted considerable interests as high-efficiency electromagnetic wave (EMW) absorbers for eliminating the increasingly serious EMW pollution, owing to its excellent conductivity, light-weight, and large surface area. However, its practical applications are still hindered by the poor impedance matching and monotonous loss mechanism. In this work, IV-VI tin disulfide (SnS 2 ) with a similar layered structure to rGO is introduced, and SnS 2 /rGO composites are synthesized through a facile two-step hydrothermal method. Due to the improvement of the impedance matching, the SnS 2 /rGO composites exhibit an enhanced EMW absorption performance with a minimum reflection loss of −35.91 dB at a thickness of 4.0 mm and an effective absorption bandwidth of 3.3 GHz in the 2–18 GHz range, which is prior to individual component materials (SnS 2 and rGO) and even most rGO-based composites. Moreover, because of multiple loss mechanisms, the radar cross-section reduction of the SnS 2 /rGO composites can reach to 12.2 dBm 2 at an incidence angle of 0°. This work provides an effective approach to enhance the EMW absorption capacity of rGO and paves the way for the further applications of rGO and rGO-based composites.
研究领域:
材料科学
·
电子工程
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Rong Li,ZhiHui Hao,Xiangwei Zhao,Huilin Zhou,Zhimin He,Qin Dong,Wei Hong,Xinglong Gou
Metal sulfides, such as SnS2, have been extensively studied as separator modifiers in lithium–sulfur batteries (LSBs) owing to their dual functionality in chemically anchoring lithium polysulfides (LiPSs) and catalytically facilitating redox reactions. Nevertheless, poor electrical conductivity and limited catalytic efficiency restrict their practical implementation for LiPS transformation kinetics. To address these issues, we prepared Mo-doped SnS2 (Mo–SnS2) nanosheets with sulfur vacancies through a rapid one-pot formamide-assisted method. The incorporation of Mo heteroatoms not only improves conductivity but also induces favorable sulfur vacancies, synergistically promoting both adsorption and electrocatalytic conversion of LiPSs. The Li–S cell with a Mo–SnS2 nanosheet-modified separator delivers a remarkable initial capacity of 1007.5 mAh g−1 at 1C, maintains 799.5 mAh g−1 after 600 cycles with a low fading ratio of 0.034% per cycle, and demonstrates a favorable rate performance of 591.9 mAh g−1 at 5C. This defect engineering strategy through heteroatom doping offers a promising approach to concurrently mitigate the polysulfide shuttle effect and enhance the reaction kinetics in sulfur-based energy storage systems.
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高影响因子
Chemosensors
·
2025
·Vol. 13
·期 10
·368
·
IF 3.7
Ding Gu,Jun Dong,Wei Liu,Xiaogan Li
As industrial waste gas, nitrogen dioxide (NO2) is a serious hazard to air pollution and human health, and there is a pressing demand for developing high-performance NO2gas sensors. Tin disulfide (SnS2), a representative two-dimensional metal sulfide characterized by a significant specific surface area, a suitable electron band gap, and an easily tunable layered structure, shows a broad application prospect in gas sensing applications. Nevertheless, SnS2-based gas sensors suffer from poor sensitivity, which seriously hinders their application in room temperature gas sensing. In this study, Ag/SnS2heterojunction nanomaterials were synthesized by an in situ reduction approach. The findings reveals that the gas-sensitive response of the Ag/SnS2nanocomposites at room temperature under visible light irradiation can achieve 10.5 to 1 ppm NO2, with a detection limit as low as 200 ppb, which realizes the room-temperature detection of Sub-ppm NO2. Meanwhile, the sensor exhibits good selectivity, reproducibility (cyclic stability > 95%). The improved gas sensitivity of the Ag/SnS2sensor can be due to the synergistic effect of the carrier separation at the Ag/SnS2Schottky junction and the localized surface plasmon resonance (LSPR) of Ag nanoparticles. The LSPR effect significantly enhances light absorption and surface-active site density, facilitating trace NO2detection at room temperature. This study provides the foundation for the subsequent development of room temperature layered metal sulfide gas sensors.
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高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2025
·Vol. 26
·期 17
·8366
·
IF 4.9
Jingfei Luan,Boyang Liu,Liang Hao,Wenchen Han,Anan Liu
A high-performance Z-scheme heterojunction photocatalytic compound, ZnBiGdO4/SnS2(ZS), was prepared for the first time using a microwave-assisted solvothermal method. ZS significantly improved the separation efficiency of photoinduced carriers and effectively broadened the response range to visible light through the unique mechanism of the Z-type heterojunction. Therefore, ZS exhibited an excellent photocatalytic performance during the degradation process of tinidazole (TNZ). Specifically, the removal rate of TNZ by ZS reached 99.63%, and the removal rate of total organic carbon (TOC) reached 98.37% with ZS as catalyst under visible light irradiation (VLIN). Compared to other photocatalysts, the photocatalytic performance of ZS was significantly better than that of ZnBiGdO4, SnS2, or N-doped TiO2(N-T). The removal rate of TNZ by ZS was 1.12 times, 1.26 times, or 2.41 times higher than that by ZnBiGdO4, SnS2, or N-T, respectively. The mineralization efficiency of TNZ for TOC with ZS as a catalyst was 1.15 times, 1.28 times, or 2.57 times higher than that with ZnBiGdO4, SnS2, or N-T as a catalyst, respectively. Free radical scavenging experiments and the electron paramagnetic resonance experiments confirmed that ZS could generate multiple reactive species such as hydroxyl radicals (•OH), superoxide anions (•O2−), and photoinduced holes (h+) during the photocatalytic degradation process of TNZ. The photocatalytic degradation performance of ZS on TNZ under VLIN was evaluated, concurrently, the reliability, reproducibility, and stability of ZS were verified by five cycle experiments. This study explored the degradation mechanism and degradation pathway of TNZ with ZS as a catalyst under VLIN. This study not only provides new ideas for the design and preparation of Z-type heterojunction photocatalysts but also lays an important foundation for the development of efficient environmental remediation technologies for TNZ pollution.
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DOI
PubMed
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
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Feihu Mu,Han Yang,Shengpan Xu,Xiaozhong Chu,Benlin Dai,Xujing Guo,Wenshuai Zhu
Given the pressing need to treat wastewater contaminated with antibiotics, particularly ciprofloxacin (CIP), a novel 2D MXene/flower-like C-SnS 2 Schottky junction photocatalyst was developed for the CIP degradation using a peroxymonosulfate (PMS)-assisted photocatalytic system. Under visible light irradiation, the 10-MXene/C-SnS 2 /PMS system achieved a CIP degradation efficiency of 98.2 % (rate constant: 0.07068 min⁻¹) within 60 min, representing 5.51-fold and 4.52-fold enhancements compared to C-SnS 2 and MXene/C-SnS 2 , respectively. These results demonstrated the synergistic effect between photocatalysis and PMS activation, as well as the critical role of MXene in enhancing the reaction efficiency. Density functional theory (DFT) calculations, combined with experimental data, elucidated the catalytic reaction mechanism. Moreover, Gaussian calculations identified key degradation intermediates. This study provides new insights into the construction of Schottky heterojunction photocatalysts combined with PMS catalytic systems for the degradation of organic pollutants.
研究领域:
环境科学
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材料科学
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化学工程
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纳米技术
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光化学
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计算化学
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DOI
高影响因子
DALTON TRANSACTIONS
·
2025
·
IF 3.3
Lan Yang,Qiyuan Lu,Xiao Zhou,Tao Yang,Chunfang Du
Adsorption is an effective strategy for treating water pollution and natural clay minerals-based materials display the great potential for removing pollutants from wastewater. In this paper, halloysite nanotubes (HNTs) modified with ethylenediaminetetraacetic acid (EDTA) were thermally treated to serve as supports for loading SnS2 to construct SnS2/HNTs(C) (SHCx-y). Methylene blue (MB) was selected as a target pollutant to examine the removal efficiency of the obtained adsorbents. SHC0.04-500 could remove more than 90 % of MB (50 mg∙L-1) within 18 min, which was 9 and 18 times higher than those of SnS2 and HNTs(C)-500, respectively. Moreover, the adsorbent SHC0.04-500 with good pH and temperature adaptability displayed the excellent adsorption performance toward cationic dyes and various antibiotics. The adsorption process of MB over SHC0.04-500 matched well with the Langmuir isotherm and pseudo-first-order kinetic model. The adsorption mechanism investigation suggested that the carbon layer on HNTs made the surface of SHC0.04-500 more negative, which mostly contributed to the improved adsorption performance. This work provides a low-cost, environmental-friendly, and efficient adsorbent for removing pollutants from wastewater, and contributes a new strategy to enhance the removal efficiency by a simple modification method.
研究领域:
环境科学
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纳米技术
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材料科学
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水污染治理
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吸附技术
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产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2021
·
IF 17.881
Wenrou Tian,Jiahao Qiu,Najun Li,Dongyun Chen,Qingfeng Xu,Hua Li,Jinghui He,Jianmei Lu
Piezocatalysis that converts mechanical energy into chemical energy plays an important role in environmental purification and energy regeneration. In this work, a piezoelectric membrane of carbon nanofibers coated by few-layers SnS 2 nanosheets , a typical layered transition metal dichalcogenides (TMDs), for the first-reported piezocatalysis of hexavalent chromium (Cr (VI)) and bisphenol A (BPA). A boosted removal efficiency of Cr (VI) and BPA under ultrasonication are 3 and 4 times higher than that under illumination, respectively, which is attributed to the built-in electric field and band bending derived from the piezoelectricity of SnS 2 as well as the outstanding electronic liquidity of CNFs substrate. It was also found that the most oxidizing ·OH can be generated in SnS 2 /CNFs for piezocatalytic oxidative degradation of BPA compared to the absence of ·OH under illumination. Finally, the possible piezocatalytic mechanism of SnS 2 /CNFs is proposed. So it provides a new view on piezocatalysis of TMDs for environmental remediation by collecting mechanical energy.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2024
·
IF 5.5
Rongzhang Yang,Hao Liang,Meiran Chen,Fengqi Lu
Layer SnS 2 has been garnered significant attention for next-generation lithium-ion batteries (LIBs), due to its abundant resources and high theoretical capacity. However, the low initial Coulombic efficiency, large volume expansion and structural degradation have significantly hindered its application in LIBs. Herein, the layer Sn 0.7 (MoFeCoNiV) 0.3 S 2 nanosheets (HE3-SnS 2 ) grown on the conductive substrate carbon cloth (CC) is synthesized by one-step hydrothermal method. Multiple elements doping strategy not only increases the conformational entropy which will improve the structural stability of during cycling, but also enlarges the interlayer spacing which benefits for lithium-ion transfer. As a result, the additive-free integrated CC@HE3-SnS 2 electrode achieves a high reversible specific capacity of 1204.9 mAh g −1 with a high initial Coulombic efficiency of 94.7 % at 1C, and maintains 1011.4 mAh g −1 after 100 cycles. Specifically, the CC@HE3-SnS 2 anode exhibits excellent rate capability of 670.8 mAh g −1 at 10C. Moreover, the full cell based on CC@HE3-SnS 2 anode and commercial LiCoO 2 cathode displays a stable capacity retention of 862.7 mAh g −1 after 100 cycles at 1C. The entropy-stabilized SnS 2 -based anode with high initial Coulombic efficiency and rate capability has a competitive candidate for LIBs.
研究领域:
材料科学
·
能源存储
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DOI
高影响因子
IEEE SENSORS JOURNAL
·
2018
·Vol. 19
·期 5
·1633-1639
·
IF 2.617
Ling Kong,Jie Chen,Zhiwei Chen,Jinhui Feng,Dawei Fan,Qin Wei
A new label-free aptasensor with high visible-light photoelectrochemical (PEC) activity was fabricated for the detection of AFB1 based on N-doped graphene quantum dots (N-GQDs) sensitized Zn-doped SnS2 (Zn-SnS2) nanocomposites. N-GQDs sensitized Zn-SnS2 showed an eminent PEC performance. Ascorbic acid was utilized as an efficient electron donor for scavenging photogenerated holes and inhibiting light driven electron-hole pair recombination. Under the optimum experimental conditions, the specific binding between AFB1 aptamer and AFB1 resulted in the linear decrease of photocurrent with the increase of logarithm of AFB1 concentration in the range of 0.01-20 ng mL-1 with a detection limit of 3 pg mL-1. The constructed N-GQDs sensitized Zn-SnS2 PEC aptasensor exhibited high sensitivity, low cost, and good reproducibility, which is a promising platform for the detection of other important analytes.
研究领域:
分析化学
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纳米技术
·
食品安全
·
环境科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Dongdong Li,Junzhi Li,Mingrui Wang,Guangshe Li,Gennadi Milinevsky,Lili Wang,Wei Han
Low energy density remains a major obstacle limiting the development and application of flexible sodium-ion batteries (SIB). Thus, this study aimed to eliminate non-active materials in electrodes, which can be a feasible way to increase the energy density of SIBs. An anode made up of flexible, free-standing SnS 2 /Sb 2 S 3 /Ti 3 C 2 T x composite carbon nanofibers (SnSbS/T-M@CNF), a Na 3 V 2 (PO 4 ) 3 composite carbon nanofibers cathode (NVP@CNF), and composite gel polymer fiber electrolytes (CGPFE) were successfully synthesized through electrospinning. MXene nanosheets improved the electrical conductivity of the SnSbS/T-M@CNF electrode and absorbed sodium sulfide, inhibiting the loss of S during the reaction. Consequently, the SnSbS/T-M@CNF free-standing electrode could be stably cycled for 1000 cycles at a current density of 1 A g −1 and maintained a reversible capacity of 397.6 mAh g −1 . Further, the NVP@CNF cathode and CGPFE quasi-solid electrolyte half-cells had an excellent cycle stability and rate performance. The flexible, free-standing SnSbS/T-M@CNF anode and NVP@CNF cathode were assembled into quasi-solid-state full cells to test their application value. The SnSbS/T-M@CNF||CGPFE||NVP@CNF full cell had a very low resistance and could easily power a 3 V LED chest lamp. After 500 cycles, it maintained a discharge capacity of 153 mAh g −1 under a current density of 0.5 A g −1 .
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
柔性电子器件
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Hui Wang,Yuxuan Pan,Jiaming Yang,Boyang Tang,Furong Ye,Chenxi Gao,Changcun Han,Changlin Yu
Photocatalytic degradation is a promising method for alleviating water pollution by utilizing solar energy and molecular oxygen as an oxidant. In this study, we synthesized an n-p type Cu 2 O/SnS 2 composite with an S-scheme heterojunction structure and investigated its photocatalytic degradation performance on methyl orange dye. Nano-cubic Cu 2 O particles are uniformly distributed on SnS 2 nanoflowers, forming a tight S-scheme heterojunction that facilitates rapid separation and transfer of photogenerated carriers. Superoxide radicals and holes play crucial roles in the photocatalytic degradation of methyl orange. Oxygen adsorption experiments reveal the adsorption behavior on the S-scheme heterojunction surface and its impact on photocatalytic performance. At a copper-to-tin ratio of 3:1, the Cu 2 O/SnS 2 composite achieved the highest catalytic activity under xenon lamp irradiation, with a methyl orange degradation rate of 97 % within 75 min and over 93 % after four cycles. The first-order reaction rate constant was significantly higher than those of Cu 2 O and SnS 2 . This study provides valuable insights into the design of efficient photocatalytic materials for environmental applications.
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