CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Qihua Sun,Yan Xu,Weijing Wang,Jun Sun,Jialin Li,Jin Li,Zhaofeng Wu,Haiming Duan
The detection of trimethylamine (TMA) is important not only for assessing the quality of seafood products but also for monitoring the environment. Biomass-derived carbon materials have been used for gas-sensitive detection because of their environmental friendliness, abundance, diversity, and chemical stability. In this work, the green waste of groundsel fibers (GFs) was used as a substrate, and ultrathin SnO 2 nanosheets were successfully grown in situ on GFs via a simple hydrothermal reaction (SnO 2 /CGFs). The structures and morphologies of the materials were characterized to detect TMA gas at room temperature. Compared with pure CGFs, SnO 2 /CGFs showed satisfactory selectivity for TMA (500 ppm), higher sensitivity, and a response/recovery time of 5.5/3.3 s. The SnO 2 /CGF sensor exhibits good long-term stability and repeatability for the detection of TMA gas. It exhibits good linearity in measuring TMA gas in the concentration range of 5–200 ppm with a theoretical detection limit of 0.475 ppm and monitored the spoilage process of sea bass at room temperature. The improved gas-sensitive performance of SnO 2 /CGFs is attributed to the unique microstructure, heterojunction formation, and abundance of oxygen species of SnO 2 on carbon tubes of biomass grown in situ.
研究领域:
材料科学
·
环境科学
·
食品科学
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2011
·Vol. 3
·期 11
·4676-4684
·
IF 4.109
Wei Wu,Shaofeng Zhang,Feng Ren,Xiangheng Xiao,Juan Zhou,Changzhong Jiang
Iron oxide/SnO2 magnetic semiconductor core–shell heterostructures with high purity were synthesized by a low-cost, surfactant-free and environmentally friendly hydrothermal strategy via a seed-mediated method. The morphology and structure of the hybrid nanostructures were characterized by means of high-resolution transmission electron microscopy and X-ray diffraction. The morphology evolution investigations reveal that the Kirkendall effect directs the diffusion and causes the formation of iron oxide/SnO2 quasi-hollow particles. Significantly, the as-obtained iron oxides/SnO2 core–shell heterostructures exhibited enhanced visible light or UV photocatalytic abilities, remarkably superior to as-used α-Fe2O3 seeds and commercial SnO2 products, mainly owing to the effective electron hole separation at the iron oxides/SnO2 interfaces.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED PHYSICS
·
2024
·Vol. 135
·期 8
·
IF 2.7
Xu Xiaoli,Jiang Hongtao,Liu Wangwang,Wang Shengyi,Wang Xiaoping,Wang Mengyu,Ma Wei,Ma Shuyi,Wei Jinsha
It is a novel-effective process for realizing high-efficiency sensing and continuous gas monitoring by introducing precious metals into metal–oxide–semiconductors (MOSs). In this study, Ag is exploited to prepare surface functionalized SnO 2 nanoparticles (NPs) and innovative x Ag@SnO 2 /CsPbBr 3 , activating and catalyzing the gas sensing reactions on semiconductors. The results show that the precious metal Ag NPs promote the directional transport of carriers, thus improving the gas sensing performances. In addition, innovative x Ag@SnO 2 /CsPbBr 3 composites originated from Ag@SnO 2 NPs and 3-mercaptopropionic acid treated all-inorganic perovskite CsPbBr 3 are constructed to further accelerate electron transfer on heterointerfaces, enabling continuous and efficient monitoring of ethanolamine (EA) at room temperature. The sensing properties of Ag@SnO 2 /CsPbBr 3 on various volatile organic compounds are investigated. Compared with pure CsPbBr 3 , the EA response of as-prepared 2Ag@SnO 2 /CsPbBr 3 is obviously improved by about sevenfold. The response/recovery time is greatly shortened, besides the good stability. Another interesting result for x Ag@SnO 2 /CsPbBr 3 is the lower limit of detection of 44.43 ppb. The work demonstrates that Ag modification facilitates the adsorption/desorption rate and the response. Furthermore, the catalytic activation of noble metal Ag NPs and the synergistic interaction of SnO 2 /CsPbBr 3 nano-heterojunctions promote EA sensing performances at room temperature.
研究领域:
材料科学
·
化学传感器
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2018
·
IF 4.514
Jiajia Liu,Wei Wang,Richard K.K. Yuen,Zhou Gui,Yuan Hu
SnO 2 nanowires decorated MnO 2 nanosheets hybrids, were prepared and incorporated into epoxy resins to improve the flame retardancy and inhibite the smoke in combustion. SnO 2 -MnO 2 hybrids shows significant improve in flame retardancy, fire toxicity and thermal properties of epoxy nanocomposites, compared to neat epoxy and nanocomposites with a single SnO 2 or MnO 2 . The char residues and glass transition temperature of the epoxy/2 wt% SnO 2 -MnO 2 nanocomposite were remarkably increased. The peak heat release rate of EP/2 wt% SnO 2 -MnO 2 was significantly decreased by 62.9% than that of pure epoxy. TG-FTIR results that the concentration of organic volatiles of epoxy was significantly reduced and the toxic CO was suppressed after incorporating SnO 2 -MnO 2 . The physical barrier for SnO 2 -MnO 2 hybrids and the synergism between the catalysis effect of SnO 2 and MnO 2 can improve the flame retardancy of epoxy resin.
研究领域:
材料科学
·
燃烧学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Haiyang Zhang,Hongyan Zhang,Zhenhong Jia,Chu Chen,Chen Yang,Qiaoya Dou,Xudong Li,Xiujuan Ma,Pengfei Ding
Organic-inorganic hybrid materials hold great application prospects in electronic devices such as humidity sensors due to their unique interfacial effects and synergistic interactions. However, relatively few studies have been conducted on the sensitization mechanism of organic–inorganic hybrid materials. Herein, we report a high performance humidity sensor based on an organic-inorganic hybrid material of poly(sodium 4-styrenesulfonate)-modified amino-functionalized SnO 2 (PSS-SnO 2 ). By employing the PSS surface modification strategy, the content of sulfonic groups (-SO 3 H) and oxygen vacancies on the surface of SnO 2 was significantly increased, which effectively enhanced its humidity sensing performance. The results reveal that the PSS-SnO 2 sensor has a higher response (18421.6), lower humidity hysteresis (1.8% RH) and faster response/recovery (2.8/5.7 s) compared to the SnO 2 sensor. Experimental analysis and density functional theory (DFT) results show that the presence of oxygen vacancies and -SO 3 H effectively promotes the dissociation of water molecules, resulting in more H + conduction on the surface of SnO 2 , which improves the sensitivity and response time of the sensor. Furthermore, the PSS-SnO 2 humidity sensor realizes visual monitoring of plant growth environments, which shows the potential in the field of smart agriculture.
研究领域:
材料科学
·
农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Bozhi Wu,Yongqiang Yang,Lei Wang,Hui Xu,Yuheng Huang,Jiahong Kang,Yuwei Xiong,Kuibo Yin,Meng Nie,Litao Sun
With the rapid development of the Internet of Things and flexible electronics, piezoelectric nanogenerators (PENGs) based on polyvinylidene fluoride (PVDF) have demonstrated a wide range of potential applications in wearable devices. However, there are still challenges in developing high-performance PENGs, which affect their potential applications in more scenarios. Herein, we propose a SnO 2 -PVDF (SP)-PENG based on low-cost and environment-friendly SnO 2 nanoparticles modulated via electrospinning, achieving outstanding piezoelectric output performance. The piezoelectric output of SP-PENG is up to 49.2 V, which is 11.7 times higher than that of pure PVDF-PENG. From the theoretical perspective, the enhanced electrostatic polarization is achieved by the strengthened local electric field due to the presence of low-resistivity SnO 2 in the SP fibers. The mechanism of enhanced electrostatic polarization is also declared by COMSOL simulation. Moreover, the SP-PENG exhibits excellent durability (41,600 cycles) and long-term stability (8 months). A self-powered wireless sensing-monitoring system is realized by combining SP-PENG with circuit design. The motion recognition system is accomplished by integrating an assistance of a 1D CNN-LSTM joint learning model, which is verified by an alphabetic handwriting recognition with a classification accuracy up to 100 %. This study provides significant insights for enhancing the performance of PENGs and offers valuable guidance for exploring the application of PENGs in flexible electronics and artificial intelligence.
研究领域:
材料科学
·
柔性电子
·
人工智能
✓ 已验证
产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2023
·Vol. 10
·期 9
·2202488
·
IF 5.4
Shihao Fu,Renjing Song,YueFei Wang,Yurui Han,Chong Gao,Jiangang Ma,Haiyang Xu,Bingsheng Li,Aidong Shen,Yichun Liu
Deep ultraviolet monitoring is realized via a high crystal quality SnO 2 microwire (MW)-based photodetector (PD). This is then combined with 2D nitrogen-doped graphene (NGr), conducting polymer polypyrrole (PPy), and an in situ polymerization-fabricated composite film PPy-NGr to construct an organic–inorganic p–n heterojunction PD. The long response time brought on by the oxygen adsorption of SnO 2 MW is greatly decreased via coating with the aforementioned materials. A defect response is created by the surface dangling bonds of SnO 2 MW, which can be effectively suppressed by the PPy. Absorption in the deep ultraviolet region (<240 nm) by PPy results in a blue shift of the response peak of the PPy/SnO 2 heterojunction PD compared to that of a single SnO 2 PD. The introduction of NGr improves the detection performance by providing a smoother energy band migration to reduce photogenerated carrier recombination and stacking at the potential barrier. The ultrahigh responsivity of PPy-NGr/SnO 2 PD is 4594.25 A W −1 and the detectivity is 6.47 × 10 11 Jones, 40 and nine times greater, respectively, than those of a PPy/SnO 2 PD under a 5 V reverse bias and 240-nm light irradiation (18.75 µW cm −2 ). The novel strategy provides a reference for the future design of high-performance heterojunction PDs.
研究领域:
材料科学
·
光电探测
✓ 已验证
产品关联
DOI
高影响因子
Materials Advances
·
2020
·Vol. 1
·期 4
·617-624
·
IF 0
Meiying Zhang,Fengmin Wu,Dan Chi,Keli Shi,Shihua Huang
Hybrid organic–inorganic perovskites have attracted intensive attention as the absorber layer in high-performance perovskite solar cells (PSCs). The interface between the electron transport layer and the perovskite layer in perovskite solar cells has a large effect on the device performance. Herein, we report a perovskite solar cell with a cell structure of ITO/ETL/(FAPbI3)0.97(MAPbBr3)0.03/spiro-OMeTAD/MoO3/Ag, where the poly(vinylpyrrolidone) (PVP)-doped SnO2 film works as the electron transport layer. We observe that the perovskite film grown on PVP-SnO2 shows more uniform crystalline grains than the control sample grown on the pure SnO2, and the electron mobility of the PVP-SnO2 film is higher than that of the pure SnO2 film; consequently, PVP-SnO2 can efficiently extract electrons from the perovskite layer. As a result, the PSCs using the PVP-doped SnO2 ETL showed an increased power conversion efficiency (PCE). The optimized device using the PVP-SnO2 electron transport layer shows an improved PCE of 19.55%, while the PSC using the SnO2 electron transport later shows a PCE of 17.50%. Furthermore, it is feasible to add PVP into the electron transport layer of SnO2 to improve the performance of the planar perovskite solar cell device.
研究领域:
材料科学
·
能源科学
✓ 已验证
DOI
ACS Applied Electronic Materials
·
2025
·
IF 4.7
Qing Han,Xiaoxiao Sui,Gongao Jiao,Zuozhe Ding,Hao Zhang,Dongzhi Zhang
In this work, a low-temperature formaldehyde sensor based on a hydrothermally synthesized tin dioxide/tin selenide (SnO2/SnSe2) nanostructure was demonstrated. The SnO2 nanosheets were decorated on the SnSe2 nanoblocks. The microstructural characterization proves this unique morphology. At 150 °C, the SnO2/SnSe2 composite gas sensor exhibits more than three times the response to formaldehyde gas compared to pure SnO2, with a response of 13.47 to 10 ppm formaldehyde and a response recovery time of 63 s/12 s. In addition, the SnO2/SnSe2 gas sensor is capable of detecting formaldehyde gas at the ppb level. The sensor also exhibits excellent repeatability, excellent long-term performance stability, and resistance to humidity interference. The n–n heterojunction formed between SnO2 and SnSe2, along with its unique microstructure, significantly enhances the performance of the SnO2/SnSe2 sensor. The adsorption behavior of formaldehyde molecules on sensitive material surfaces was studied by using density functional theory.
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Yi Zhong,Chenhan Zhang,Zhihua Ying,Yuan Jiang,Weiqin Sheng
Nitrogen dioxide (NO 2 ) is a significant air pollutant with a notable environmental impact, necessitating precise monitoring. However, most existing NO 2 sensing materials exhibit low sensitivity and require high-temperature operation. In this study, we employed a hydrothermal and co-precipitation method to synthesize a novel ternary nanocomposite , In 2 O 3 /SnO 2 nanoparticles (NPs)/fluorine-doped carbon quantum dots (F-CDs). By varying the mass ratio of In 2 O 3 to SnO 2 NPs, we investigated the gas-sensing performance of the composite towards NO 2 . The results demonstrate that when the ratio of SnO 2 and In 2 O 3 reaches to 1 : 2, the 2-In 2 O 3 /SnO 2 /F-CDs gas sensor exhibited the highest response, excellent selectivity , and remarkable stability under ultraviolet (UV) light irradiation at room temperature (∼25 °C). Furthermore, the response of the 2-In 2 O 3 /SnO 2 /F-CDs gas sensor displayed a strong linear relationship with the concentration of NO 2 gas. At a NO 2 gas concentration of 3 ppm, the sensitivity was 238, which is significantly higher than that of In 2 O 3 /SnO 2 NPs and In 2 O 3 sensors. The response time and recovery time were measured at 62 s and 33 s, respectively. Finally, based on experimental characterization results and band structure analysis, we confirmed the promising effects of ternary nanocomposite in enhancing gas sensing.
研究领域:
材料科学
·
环境科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Energy & Environmental Materials
·
2023
·Vol. 7
·期 4
·e12682
·
IF 15
Deliang Cheng,Wenbiao Zhang,Yi Tang,Qingsheng Gao,Renzong Hu,Lichun Yang,Min Zhu
SnO 2 , with its high theoretical capacity, abundant resources, and environmental friendliness, is widely regarded as a potential anode material for lithium-ion batteries (LIBs). Nevertheless, the coarsening of the Sn nanoparticles impedes the reconversion back to SnO 2 , resulting in low coulombic efficiency and rapid capacity decay. In this study, we fabricated a heterostructure by combining SnO 2 nanoparticles with MoS 2 nanosheets via plasma-assisted milling. The heterostructure consists of in-situ exfoliated MoS 2 nanosheets predominantly in 1 T phase, which tightly encase the SnO 2 nanoparticles through strong bonding. This configuration effectively mitigates the volume change and particle aggregation upon cycling. Moreover, the strong affinity of Mo, which is the lithiation product of MoS 2 , toward Sn plays a pivotal role in inhibiting the coarsening of Sn nanograins, thus enhancing the reversibility of Sn to SnO 2 upon cycling. Consequently, the SnO 2 /MoS 2 heterostructure exhibits superb performance as an anode material for LIBs, demonstrating high capacity, rapid rate capability, and extended lifespan. Specifically, discharged/charged at a rate of 0.2 A g −1 for 300 cycles, it achieves a remarkable reversible capacity of 1173.4 mAh g −1 . Even cycled at high rates of 1.0 and 5.0 A g −1 for 800 cycles, it still retains high reversible capacities of 1005.3 and 768.8 mAh g −1 , respectively. Moreover, the heterostructure exhibits outstanding electrochemical performance in both full LIBs and sodium-ion batteries.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2019
·
IF 5.026
Saima Batool,Muhammad Idrees,Munir Ahmad,Mahtab Ahmad,Qaiser Hussain,Atef Iqbal,Jie Kong
2,4-Dichlorophenol (2,4-DCP) is a hazardous chlorinated organic chemical derived from phenol that exerts serious effects on living organisms. In the present study, SnO 2 templated with grapefruit peel carbon as a nanocomposite (SnO 2 @GPC) was designed via ball-milling, and its mechanism of 2,4-DCP adsorption in aqueous solution was determined. Batch adsorption experiments revealed that the maximum adsorption efficiency of SnO 2 @GPC occurred at 6.0 pH, 3 mg L −1 initial adsorbate concentration, 2 h contact time, and 293 K temperature. The SnO 2 @GPC nanocomposite and its non-tin-bearing counterpart, grapefruit derived char (@GPC), showed maximum adsorption capacities (Q L ) of 45.95 and 22.09 mg g −1 and partition coefficients of 41.77 and 10.83 mg g −1 μM −1 , respectively. The adsorption of 2,4-DCP was best described by the Redlich−Peterson model followed by the Langmuir model with high correlation coefficients (R 2 ≥ 0.96), and the adsorption kinetic data best fitted the pseudo-second-order model (R 2 ≥ 0.98). The thermodynamic parameters indicated that the reaction was spontaneous, exothermic, and involved high affinity between SnO 2 @GPC and 2,4-DCP. The high desorption efficiency obtained (>80%) demonstrated the recyclability of the adsorbent. The enhanced Q L of SnO 2 @GPC was due to the effective combination of GPC and SnO 2 . A thin porous layer of GPC on SnO 2 nanoparticles provided effective channels, a large surface area, and an abundance of active sites for 2,4-DCP adsorption. Thus, the SnO 2 @GPC nanocomposite could potentially be used as a low-cost adsorbent to remove 2,4-DCP from water.
研究领域:
环境科学
·
材料科学
✓ 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）