NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Liping Gao,Hao Ran Dong,Zhe Lin Liu,Jincheng Cao,Junhai Wang,Xueli Liu,Yuping Chen
As a carcinogen, low concentration and high sensitivity detection of formaldehyde is crucial. NiO sensitized porous ZnSnO3 nanocubes were synthesized through a water bath coprecipitation process followed by subsequent calcination for formaldehyde vapor detection. NiO sensitized porous ZnSnO3 nanocubes exhibit a uniform size distribution of approximately 100 nm. The addition of NiO increases the oxygen vacancy concentration while suppressing electron–hole recombination processes. Operating at 180 °C, gas sensors based on NiO sensitized porous ZnSnO3 nanocubes exhibit a significant response to 50 ppm formaldehyde vapor. The 7% NiO/ZnSnO3 sensor demonstrates a higher sensitivity of 60.5 compared to other ratios. When detecting formaldehyde at a concentration of 1 ppm, the 7% NiO/ZnSnO3 sensor exhibits a sensitivity of 15.9, which indicates its low detection limit. Additionally, it demonstrates a strong linear response to formaldehyde concentration variations, along with excellent selectivity and good stability to 50 ppm formaldehyde. The excellent gas sensitivity of the 7% NiO/ZnSnO3 nanocubes sensor is attributed to the unique p–n heterojunction and abundant oxygen vacancies.
研究领域:
材料科学
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2023
·
IF 7.4
Yue Han,Changdi Wang,Ruiyang Zhao,Jishu Han,Lei Wang
In order to alleviate environmental pollution and energy crisis caused by the excessive use of fossil fuels, photocatalytic water splitting to produce hydrogen as an alternative fuel has attracted widespread attention. The construction of heterojunction photocatalyst is considered to be one of the effective ways to enhance the photocatalytic hydrogen production efficiency. In this study, Ni-doped CdSe was modified on the surface of hollow ZnSnO 3 double-shell nanocubes. The obtained Cd 0.9 Ni 0.1 Se/ZnSnO 3 possessed high photocatalytic activity under visible light irradiation. The photocatalytic hydrogen production rate could reach to 6458.0 μmol/g/h. The successful construction of hollow Cd 0.9 Ni 0.1 Se/ZnSnO 3 double-shell type-I heterojunction increased visible light absorption, shortened the charge transport distance, and inhibited the recombination of electron-hole pairs, thus enhancing the photocatalytic hydrogen production performance of Cd 0.9 Ni 0.1 Se/ZnSnO 3 . It provided the idea for promoting the design of solar to chemical energy conversion and the effective guidance for constructing a high-efficient and stable photocatalyst.
研究领域:
材料科学
·
环境科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
Sensors and Actuators Reports
·
2022
·
IF 0
Shu Yan,Shu-Zhe Zhang,Wan-Feng Xie,Ling-Yun Gai,Hui-Min Yuan,Ding Zhang,He Zhang,Xuhai Liu,Woochul Yang,Zong-Tao Chi
By combining hydrothermal and calcination processes, In 2 O 3 /ZnSnO 3 cubic crystallite composites have been successfully synthesized. The crystal structure and morphology of the as-synthesized In 2 O 3 /ZnSnO 3 have been characterized employing X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and X-Ray photoelectron spectroscopy (XPS). In terms of better gas response, fast response, repeatability, and a lower operating temperature, the In 2 O 3 /ZnSnO 3 cubic crystallites displayed selective sensing performance towards ethanol, specifically, the response is 14.9, and response/recovery times are 45 s and 24 s, respectively, to 100 ppm ethanol at 250 °C. This research reveals that the synthetic In 2 O 3 /ZnSnO 3 cubic crystallite composites exhibit significant ethanol sensing properties due to the synergetic effect between In 2 O 3 and ZnSnO 3 , oxygen vacancies, and high specific surface area, making them a potential material for constructing high-performance ethanol sensors.
研究领域:
材料科学
·
化学传感器
✓ 已验证
产品关联
DOI
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Kewei Liu,Zichen Zheng,Jinyong Xu,Chao Zhang
Aimed at the bottleneck problem in conventional gas sensors that the effective detection of CO 2 gas can only be accomplished at concentrations above thousands of ppm and higher operating temperature, in this work, microstructured ZnSnO 3 equipped with rambutan-like hexahedral features with the hollow interior was successfully synthesized through a facile one-step hydrothermal method. Visible light was utilized as an excitation source to further enhance the sensing property. The investigation elaborated that at optimum hydrothermal time of 16 h, ZnSnO 3 showed a high gas response (~4.65), repeatability, and long-term stability towards 400 ppm CO 2 at room temperature. The response under purple light was 3.5 times higher than that under dark conditions, resulting from photoelectrons' generation. Furthermore, ZnSnO 3 sensor had excellent selectivity to 50 ppm CO 2 . The large specific surface area and abundant oxygen vacancies of ZnSnO 3 contribute to the excellent gas-sensing performance, which addresses the dilemma that it is difficult to break through the energy barrier through surface interaction to impact the band structure and carrier concentration because CO 2 is a non-polar molecule formed by polar bonds. Therefore, ZnSnO 3 is a promising material for the development of devices utilized in medical respiratory detection, agricultural crop growth detection and other fields.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2019
·
IF 0
Runjiang Guo,Ran Tian,Dongliang Shi,Hua Li,Hezhou Liu
Nowadays, obtaining photocatalysts with a narrow band gap that can degrade contamination under visible light has been a hot topic in the field of environmental protection. In this report, the S-doped hierarchically structured ZnSnO3 with a high S doping ratio, a narrow band gap, and a large specific surface area is synthesized via a two-step hydrothermal method. ZIF-8 was used as the Zn source to synthesize ZnSnO3 with a hollow structure for the first time. Characterization techniques to confirm doping by S in the ZnSnO3 structure include the use of X-ray photoelectron and energy-dispersive spectroscopies. Owing to the hollow-structured ZnSnO3 precursor, S-doped ZnSnO3 demonstrated a large specific surface area (up to 80.63 m2/g) that is favorable for the strong adsorption of reactants. In addition, the S-doping ratio is as high as 90%, which is much higher than that of other related work. Because of the elevated S 3p energy level, the band gap of S-doped ZnSnO3 is rapidly decreased from 3.7 to 2.4 eV, which gives S-doped ZnSnO3 a higher efficiency in the utilization of visible light. Because of the enhanced adsorption capabilities and decreased band gap, the as-synthesized nanocomposite can be used as a high-efficiency photocatalyst for wastewater treatment. About 36% rhodamine B (RhB) is absorbed by S-doped ZnSnO3 even before 350 W Xe-lamp irradiation. After being irradiated under visible light for about 80 min, the RhB is almost completely degraded (degradation efficiency ≈90%) using S-doped ZnSnO3, which is much faster than using pure ZnSnO3 or other zinc–tin oxide-based photocatalysts. In this report, detailed discussions are also given for the synthesis process of hollow-structured ZnSnO3 and the mechanism of narrowing the band gap via S doping.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Zhengdao Li,Yan Xiong,Dongqin Bi,Qi Liu,Chuanyun Yang,Jia Zhang
To optimize the structure and composition of the metal oxide semiconductor is one of effective approaches to improve its gas-sensing performance. In this paper, Zn 2 SnO 4 solid octahedrons were first synthesized by a hydrothermal method , then converted to hollow structures with a shape preserved through a simple and practical acid etching process. Ultimately, the hierarchical ZnSnO 3 /Zn 2 SnO 4 hollow composite with porous structure was designed and prepared by in situ growth of ZnSnO 3 nanosheets on the surface of Zn 2 SnO 4 hollow octahedrons in the seed mediated wet-chemical way. It was found that through the structure evolution from solid octahedron to hollow structure, the sensitivity of gas sensor toward triethylamine (TEA) was visibly improved. Significantly, superior TEA-sensing properties, such as lower optimal working temperature, higher sensitivity, wider linear response range, more rapid response/recovery speed and more excellent selectivity were further achieved by decorating Zn 2 SnO 4 hollow octahedrons with ZnSnO 3 nanosheets. It was remarkable that the sensor based on hierarchical ZnSnO 3 /Zn 2 SnO 4 porous hollow octahedrons displayed long-term stability to TEA and anti-humidity property, suggesting its potential practical applications in detection of highly toxic TEA. The improved sensing mechanism on the strength of structure and composition evolution for the gas sensor was discussed in detail.
研究领域:
材料科学
·
传感器技术
✓ 已验证
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2021
·
IF 4.821
Hongxia Zhang,Xiaoli Liu,Mengmeng Xu,Jianbin Zheng
The Au-modified hollow ZnSnO 3 cubes were fabricated through a facile and effective two-step approach, and then developed an electrochemical sensor for hydrazine (N 2 H 4 ) detection. Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray diffraction spectroscopy (XRD), Energy-dispersive X-ray spectrum (EDS) and Fourier transform infrared spectroscopy (FTIR) were employed to characterize the morphology, structure and crystalline nature of the Au-modified hollow ZnSnO 3 cubes, and the results showed that Au NPs were deposited on ZnSnO 3 surface and internal cavity. Meanwhile, electrochemical investigations indicated that the proposed sensor exhibited a high current intensity at 0.66 V toward N 2 H 4 . Under optimized conditions, the sensor displayed the outstanding analytical performance to N 2 H 4 in terms of sensitivity (787.0 μA·mM −1 ·cm −2 ), linear range (0.02 μM–0.36 mM) and detection limit (0.01 μM). Compared with GNF/GCE, the sensitivity of the proposed was 2 times of improvement, the linear range was three orders of magnitude wider and the detection limit was one order of decrease. Additionally, the sensitivity of the proposed also was 4 times of TiO 2 NTs-Au@Pd/GCE. The present work may broaden the idea for constructing novel sensor and provide insights of the Au-modified hollow ZnSnO 3 cubes synthesized.
研究领域:
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Liyong Du,Yingai Li,Yu Tong,Mingzhe Zhang
The synthesis of hierarchically porous nanostructures is always highly concerned by researchers. Herein, we report a simple, low-cost and green approach to obtain hierarchical ZnSnO 3 porous nanostructures by using the branches of pterocarya stenoptera, catalpa and apricot as biotemplate, respectively. The gas sensing properties of hierarchical ZnSnO 3 porous nanostructures are systematically analyzed. The results exhibit that the ZnSnO 3 based gas sensors show not only high responses and rapid response/recovery speed (2/8 s for ZnSnO 3 -1, 1/10 s for ZnSnO 3 -2 and 2/20 s for ZnSnO 3 -3) at the working temperature of 240 o C but also excellent anti-humidity properties, gas selectivity, repeatability and long-term stability. Besides, the linear relationship between the responses and the formaldehyde concentration (1–200 ppm) is observed. The excellent gas sensing performance of the ZnSnO 3 based gas sensors is mainly ascribed to the unique structural merits. The simple synthetic method in this paper also provides implications for the design and synthesis of porous MOSs .
研究领域:
材料科学
·
环境科学
·
纳米技术
✓ 已验证
DOI
高影响因子
Journal of Physical Chemistry C
·
2024
·
IF 3.3
Yong-xing Liu,Decong Xie,Qing-ru Liu,Hu-wei Miao,Wei Liu,Li-li Li,Fa-yu Wu,Jing Zhu
An attempt was made to explore the relationship between the gas sensing performance of ZnSnO3 thin films and their intrinsic charge carrier behaviors. ZnSnO3 films with miscellaneous electrical characteristics were obtained by the combination of like-chemical oxygen control, fluorine doping, and like-physical light conditioning. The microstructure, morphology, optical transparency, electrical characteristics, and gas sensing performance were analyzed by X-ray diffraction, Raman spectroscopy, atomic force microscopy, ultraviolet spectrophotometer, Hall effect apparatus, and electrochemical testing system, respectively. The results show that through F–O coregulation, the carrier concentration of ZnSnO3 thin films was increased from 1017 to 1018 cm–3, the sensitivity was increased from 0.09 to 0.26, the response/recovery time was reduced from 165 s/153 s to 129 s/110 s, and the optimal operating temperature was lowered to 280 °C. The irradiation of simulating solar intentionally enhanced the carrier concentration, which significantly increased the sensitivity to 31.16 and greatly reduced the response/recovery time to 79 s/68 s. The minimum limit of detection concentration has been reduced to 2 ppm for dense and simple film, and even the minimum operating temperature has been drastically lowered to room temperature. For various derivated carriers with different concentrations, the mechanism of depletion and accumulation on the gas-sensitive response is proposed.
研究领域:
材料科学
·
传感器技术
·
物理化学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Xue Ma,Xin Dong,Baosheng Li,Qiuyue Zheng,Rui Li,Chaobo Huang,Lihua Huo,Xianfa Zhang,Xiaoli Cheng,Yingming Xu
n-Pentanol, a commonly used Volatile organic compounds (VOCs) in industry, is harmful to the environment security and human health. Thus, it is necessary to develop n-pentanol sensors. Herein, spherical (ZTO-S), cubic (ZTO-C) and pseudo-cubic (ZTO-PC) ZnSnO 3 were obtained by changing the ratio of solvent in hydrothermal/solvothermal process. By contrast, the ZTO-PC sensor had a high sensitivity of 135.2 to 100 ppm n-pentanol at 170 °C, a short response time of 0.8 s, and a low detection limit of 10 ppb. Meanwhile, the ZTO-PC sensor displayed superior reproducibility, good humidity resistance and excellent long-term stability. The outstanding sensing performance response of the ZTO-PC sensor is attribute to its high surface adsorbed oxygen content, fast electron mobility and good conductivity, providing abundant active sites and effective gas adsorption platform. In addition, the mechanism of the ZTO-PC sensor for n-pentanol was studied by XPS , GC-MS, and in-situ DRIFTS . After contact with ZnSnO 3 , n-pentanol was first oxidized to n-pentanal and then decomposed into CO 2 and H 2 O. This work well-designed three types of ZnSnO 3 through morphological engineering, providing a hopeful strategy for improving the gas sensitive performance.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2019
·
IF 3.45
Runjiang Guo,Hongdong Wang,Ran Tian,Dongliang Shi,Hua Li,Yao Li,Hezhou Liu
In this report, a novel hollow boxes shape ZnSnO 3 is synthesized via a one-pot surfactant-free method. We synthesize CNT@ZnSnO 3 hollow boxes via hydrothermal reaction by using the Zn-MOF(ZIF-8) as the Zn source at the first time. Several characterization techniques are used to investigate the structure, morphology, composition and specific surface area of CNT@ZnSnO 3 . CNT@ZnSnO 3 hollow boxes demonstrated large specific surface area (up to 45.73 m 2 /g), which is favorable for the strong gas sensor response. The ethanol sensor based on CNT@ZnSnO 3 hollow boxes exhibited high response of ethanol up to 166 at 240 °C at the concentration of 100 ppm, which is about 8 times higher than the sensing response of ZnSnO 3 nanocubes. Moreover, CNT@ZnSnO 3 hollow boxes based ethanol sensor also shows the excellent selectivity and stability. As a novel green gas sensor, CNT@ZnSnO 3 hollow boxes show the great potential in the gas sensing field.
研究领域:
材料科学
·
化学工程
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2021
·Vol. 13
·期 20
·9270-9279
·
IF 7.79
Yuanyuan Dong,Chenxing Xu,Lei Zhang
Herein, we reported a label-free and reliable photoelectrochemical (PEC) platform for highly selective monitoring of norepinephrine (NE) based on metallic Bi nanoparticles anchored on hollow porous ZnSnO3 microspheres (3D Bi/ZnSnO3) via a simple solvothermal strategy. The designed 3D Bi/ZnSnO3 Schottky junction exhibited a unique photoanodic response toward NE among other catechol derivatives, such as epinephrine (EP) and dopamine (DA), and effectively shielded the interference from thirteen coexisting biomolecules like uric acid (UA) and ascorbic acid (AA). High selectivity and excellent sensitivity could be correlated to the unique chelating coordination interaction between NE and Zn2+ at surface sites as well as the efficient carrier separation of Bi/ZnSnO3, thereby developing a novel “signal-on” label-free and selective strategy for NE detection. The proposed Bi/ZnSnO3-based PEC sensor achieved remarkable NE biosensing with a low detection limit of 0.68 nmol L−1 and a wide response ranging from 0.002 to 350.0 μmol L−1. The applicability of this biosensor was realized for the selective analysis of NE in human serum, human urine and injection samples, laying the foundation for the label-free PEC monitoring of NE in biological fluids.
研究领域:
生物传感器
·
材料科学
·
分析化学
✓ 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）