JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Peng Wu,Yi Li,Song Xiao,Junyi Chen,Ju Tang,Dachang Chen,Xiaoxing Zhang
As a novel eco-friendly gas insulation medium, perfluoroisobutyronitrile (C 4 F 7 N) has been utilized in various gas insulated equipment. Considering the biological toxicity of C 4 F 7 N, it is of great engineering significance to develop highly sensitive sensors for leakage detection scenarios. Herein, we fabricated the first SnO 2 nanoparticles based highly sensitive C 4 F 7 N gas sensor that realized a superior response of 65.01% within 21 s for 50 ppm C 4 F 7 N exposure and a detection limit of 0.25 ppm. Meanwhile, successive response-recovery tests were performed to confirm its durability and stability. We also explored the sensing mechanism of SnO 2 nanoparticles towards C 4 F 7 N and explained the superior sensing performance compared with other gases based on the density functional theory . It was found that the O vacancy demonstrates strong interaction with the -CN group in C 4 F 7 N that promotes the detection response, which was also confirmed by sensing experiments for SnO 2 with different O vacancy density. We believe this paper provides convincing support for lowering the potential operation risk brought by C 4 F 7 N in electrical engineering and the application scenarios of SnO 2 based gas sensors.
研究领域:
材料科学
·
电气工程
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale Advances
·
2022
·Vol. 4
·期 3
·824-836
·
IF 5.598
Shiqiang Zhou,Huapeng Wang,Jicu Hu,Tianping Lv,Qian Rong,Yumin Zhang,Baoye Zi,Mingpeng Chen,Dongming Zhang,Jun Wei,Jin Zhang,Qingju Liu
Formaldehyde is a common carcinogen in daily life and harmful to health. The detection of formaldehyde by a metal oxide semiconductor gas sensor is an important research direction. In this work, cobalt-doped SnO2 nanoparticles (Co-SnO2 NPs) with typical zero-dimensional structure were synthesized by a simple hydrothermal method. At the optimal temperature, the selectivity and response of 0.5% Co-doped SnO2 to formaldehyde are excellent (for 30 ppm formaldehyde, Ra/Rg = 163 437). Furthermore, the actual minimum detectable concentration of 0.5%Co-SnO2 NPs is as low as 40 ppb, which exceeds the requirements for formaldehyde detection in the World Health Organization (WHO) guidelines. The significant improvement of 0.5%Co-SnO2 NPs gas performance can be attributed to the following aspects: firstly, cobalt doping effectively improves the resistance of SnO2 NPs in the air; moreover, doping creates more defects and oxygen vacancies, which is conducive to the adsorption and desorption of gases. In addition, the crystal size of SnO2 NPs is vastly small and has unique physical and chemical properties of zero-dimensional materials. At the same time, compared with other gases tested, formaldehyde has a strong reducibility, so that it can be selectively detected at a lower temperature.
研究领域:
材料科学
·
环境科学
·
医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DIAMOND AND RELATED MATERIALS
·
2023
·
IF 4.1
Ce Liang,Jian Guo,Liufei Yue,Mingyang Wang,Jicai Liang,Xiaofeng Wang,Yi Li,Kaifeng Yu
SnO 2 has a high specific capacity, low price, and a wide range of sources, but the anode material made from SnO 2 is extremely unstable due to volume expansion. In this work, SnO 2 nanoparticles were prepared using Sn-MOF as the precursor and compounded with sunflower seed shell porous carbon (SSSC) in a solvothermal manner to obtain a high-performance lithium-ion battery anode. The size of SnO 2 nanoparticles prepared using Sn-MOF as the precursor is uniform, only 10–20 nm, which can fully alleviate the volume expansion of SnO 2 . On this basis, MOF-SnO 2 is anchored onto the porous carbon of the sunflower seed shell, which can provide more lithium insertion sites and further inhibit the volume expansion of SnO 2 . The composite anode in this article has a stable specific capacity of 1050.8 mAh g −1 after 100 cycles at a magnification of 0.2C and a stable specific capacity of 512.9 mAh g −1 after 100 cycles at a magnification of 2C.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2017
·Vol. 41
·期 17
·9321-9329
·
IF 3.269
Nadeem Muhammad,Weixia Li,Qamar Subhani,Fenglian Wang,Yong-Gang Zhao,Yan Zhu
The aim of this novel study was to introduce a cheap, simple, sensitive, and green methodology involving the dual application of synthesized porous SnO2 nanoparticles (NPs) for selective conversion of non-fluorescent ketoprofen (KP) into a highly fluorescent species and as a sorbent in a μ-sample preparation method for extraction of KP from the three complex human serum, urine, and canal water samples. The clean separation and sensitive fluorescence determination of KP from these complex samples were carried out by coupling an ion chromatograph with a fluorescence detector (IC-FLD). The sorbent was prepared by a simple chemical precipitation method in water and characterized via various techniques. The porous SnO2 NPs, in addition to their role in the selective conversion of KP into a highly fluorescent species, also act as an effective sorbent for the selective degradation and elimination of polar organics, inorganic matrices, and heavy metals in complex samples. The optimized analytical method exhibited satisfactory linearity for ketoprofen in the concentration range of 0.2–1.5 mg kg−1 with a correlation coefficient (r2) of 0.997. The limit of detection (LOD) and quantification (LOQ) in human serum, urine, and canal water samples were 0.1 μg kg−1, 0.5 μg kg−1, and 0.39 μg kg−1 and 1.3 μg kg−1, 0.3 μg kg−1, and 1.7 μg kg−1, respectively. The method also showed good intra-day and inter-day precisions at the two concentration levels of 0.5 mg kg−1 and 1.3 mg kg−1 in complex samples with the relative standard deviations (RSDs) less than 16.3% (n = 5), and satisfactory recoveries were retrieved in the range of 85.1–101.4% with minimum or no matrix effect.
研究领域:
分析化学
·
环境科学
·
药物分析
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Huimin Yang,Cheng Nan,Nan Gao,Wenjing Zhou,Fanfan Gao,Dai Dong,Danyang Dou,Yujie Liu,Zhenhai Liang,Donghua Yang
Photoelectrochemical nitrogen reduction (PEC NRR) provides a clean and sustainable method for the production of NH 3 under environmental conditions. However, low reaction efficiency remains a major challenge due to the presence of competitive hydrogen evolution reactions (HER). Herein, nanocomposites (SNP/MSO) with three-phase interface were prepared by loading hydrophilic SnO 2 nanoparticles (SNP) on hydrophobic MoS 2 (MSO) obtained by surface modification with silicomolybdic acid. The hydrophobic interface eliminated the transport barrier of N 2 in the liquid phase to the reaction center, inhibiting HER since the lowered contact area with the liquid proton. Meanwhile, the heterojunction structure formed between MSO and SNP accelerated the effective electron transfer . The synergistic effect of the triphase interface structure and electron transfer structure contributed to the high NH 3 yield (19.6 μg h −1 mg −1 ) and FE (40.34%) of SNP/10MSO in the photoelectrochemical system. Compared with the nanocomposites (SNP/MSI) prepared by hydrophilic MoS 2 , FE was significantly increased by 10 percentage points.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
MATERIALS LETTERS
·
2018
·
IF 2.687
Xiu Yang,Ying Zhang,Yongcai Zhang,Tianxiao Peng,Aiping Zhu
Conjugated derivative (CPVC) from thermal dehydrochlorination of polyvinyl chloride (PVC) was tried to modify SnO 2 nanoparticles for developing a high efficiency visible-light-activated photocatalyst for the treatment of Cr(VI) wastewaters. CPVC modified SnO 2 nanoparticles (SnO 2 /CPVC) were synthesized via the following procedures: (i) mixing of SnO 2 nanoparticles and PVC in tetrahydrofuran solution, then evaporation of tetrahydrofuran to produce SnO 2 /PVC nanocomposite, and (ii) thermal treatment of the SnO 2 /PVC nanocomposite at 150 °C for 2 h to transform its PVC into conjugated CPVC. The as-synthesized products were characterized using X-ray diffraction, Raman spectroscopy, high resolution transmission electron microscopy, UV–vis diffuse reflectance spectra, transient photocurrent measurement, and electrochemical impedance spectroscopy. The photocatalytic tests indicated that SnO 2 /CPVC nanocomposite had exceptionally higher (about 14 times) photocatalytic activity than SnO 2 nanoparticles in the reduction of aqueous Cr(VI) under visible-light (λ > 420 nm) irradiation. This work is the first report of SnO 2 /CPVC as photocatalyst for the reduction of Cr(VI), and also useful for developing new efficient visible-light-activated photocatalysts using low cost polyvinyl chloride.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Scientific Reports
·
2018
·Vol. 8
·期 1
·1-11
·
IF 4.122
Muhammad Nadeem,Rahman Abdul,Younis Muhammad Adnan,Subhani Qamar,Shehzad Khurram,Cui Hairong,Zhu Yan
Nowadays, there are rising concerns about the extensive use of the antibiotics such as chloramphenicol (CAP), has threatened the human life in the form of various vicious diseases. The limited selectivity and sensitivity of confirmatory techniques (UV and electrochemical) and non-fluorescence property of CAP make its determination a challenging task in the modern pharmaceutical analysis. In order to redeem the selective, sensitive and cost-effective fluorescence methodology, here by the dual role of synthesized porous SnO 2 nanoparticles were exploited; (i) a porous sorbent in a µ-QuEChERS based sample preparation and as (ii) a stimulant for the transformation of non-fluorescent analytes namely CAP and p-nitrophenol (p-NP) into their respective fluorescent product. We report a green, simple, selective and cost effective ion chromatographic method for CAP sensitive determination in three complex matrices including milk, human urine and serum. The synthesized sorbent not only selectively adsorbed and degraded the matrix/interferences but also selectively reduced the non-fluorescent antibiotic CAP into a fluorescent species. This developed ion chromatographic method exhibited good selectivity, linearity (r 2 ≥ 0.996) and limit of detection (LOD) was in the range 0.0201–0.0280 µg/kg. The inter- and intraday precisions were also satisfactory having a relative standard deviation (RSDs) less than 14.96% and excellent recoveries of CAP in the range of 78.3–100.2% were retrieved in various complex samples.
研究领域:
分析化学
·
药物分析
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2015
·Vol. 7
·期 25
·11048-11054
·
IF 7.394
Jintao Kong,Wei Zheng,Yongsheng Liu,Renfu Li,En Ma,Haomiao Zhu,Xueyuan Chen
Persistent luminescence phosphors, which are capable of emitting light for a long time after ceasing excitation, have shown great promise in diverse areas as bioprobes, lighting and displays. Exploring new materials to realize efficient persistent luminescence is a goal of general concern. Herein, we report a novel persistent luminescence phosphor based on Eu3+-doped SnO2 nanoparticles (NPs). The afterglow decay behaviour, the trap depth distribution as well as the underlying mechanism for persistent luminescence of the NPs were comprehensively surveyed by means of thermoluminescence and temperature-dependent afterglow decay measurements. It was found that the thermal activation mechanism is responsible for the afterglow decay of the NPs with an inverse power-law exponent of 1.0 (or 1.7) in the temperature region below (or above) 220 K. In particular, the co-existence of uniform and exponential distributions in trap depths may result in such a unique afterglow decay behaviour. These results reveal the great potential of SnO2 NPs as an excellent host material for Eu3+ doping for the generation of efficient persistent luminescence.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Yidan Ding,Shasha Li,Yang Jiao,Liguo Shen,Hongjun Lin,Yanchao Xu
Inspired by the use of magnetism to shape material forms, this work presents a magnetism-driven approach to construct polyamide nanofiltration membranes with embedded magnetic Fe 3 O 4 –SnO 2 nanoparticles. A magnetic field is applied in the interfacial polymerization to attract magnetic nanoparticles from the aqueous phase to the water‒oil interface, forming a novel “template interface” that outlines the nanoparticles in the resulting membrane. This modification significantly enhanced the membrane performance, with a pure water flux of 27.2 L m −2 h −1 bar −1 , nearly quadrupling that of the TFC membrane, and 99.3 % Na 2 SO 4 rejection occurred resulting from reduced PA layer thickness, enlarged surface area, lower crosslinking degree, and enhanced surface hydrophilicity. Importantly, the incorporation of Fe 3 O 4 –SnO 2 nanoparticles endows the membrane with exceptional photocatalytic capabilities, which are crucial for degrading antibiotics adsorbed on the membrane surface and thereby restoring its separation performance. This approach regulates the morphology and performance of polyamide membranes, equipping them with advanced functionalities to address environmental pollution and water treatment challenges effectively.
研究领域:
材料科学
·
环境工程
·
膜技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 7
·3940-3951
·
IF 12.732
Huan Bi,Xin Zuo,Baibai Liu,Dongmei He,Le Bai,Wenqi Wang,Xiong Li,Zeyun Xiao,Kuan Sun,Qunliang Song,Zhigang Zang,Jiangzhao Chen
Bulk and interfacial nonradiative recombination hinder the further enhancement of the power conversion efficiency (PCE) and stability of SnO2-based planar perovskite solar cells (PSCs). To date, it is still a huge challenge to minimize the bulk and interfacial nonradiative recombination losses, and thus maximize the potentials of PCE and stability. Herein, a novel and effective multifunctional modification strategy through incorporating Girard's Reagent T (GRT) molecules with multiple functional groups to modify SnO2 nanoparticles (NPs), which significantly reduces the bulk and interfacial nonradiative recombination losses through the simultaneous achievement of suppressing nanoparticle agglomeration, improving the electronic property of SnO2 films, facilitating the vertical growth and enlarging the grain size of perovskite crystals, and passivating interfacial defects is reported. As a result, the device based on GRT modification delivers a much higher PCE of 21.63%, along with significantly suppressed hysteresis, as compared to the control device (19.77%). The device stability is ameliorated after GRT modification. The unencapsulated device with GRT maintains 99.5% of its initial PCE after aging at 60 °C for 720 h and 58.5% after illumination for 672 h under one sun, respectively. The present work provides guidance for the design of multifunctional modification molecules toward efficient and stable PSCs.
研究领域:
材料科学
·
能源技术
·
光电转换
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Zhiyi Zhang,Zhihua Zhao,Chen Chen,Lan Wu
Volatile organic compounds (VOCs) constitute key pollutants in the environment, and exposure to them is associated with negative health impacts. The vigilant monitoring of these pernicious VOCs is imperative for their timely detection and for curtailing the likelihood of both immediate and prolonged exposure, thus safeguarding against the deterioration of environmental quality. In this study, porous PtRu nanoalloys are successfully synthesized via a hydrothermal method and innovatively integrated with SnO2 nanoparticles to significantly enhance the performance of gas sensors. Density functional theory (DFT) calculations substantiated the pivotal role of PtRu nanoalloys in amplifying the sensitivity of SnO2 to acetone. A primary challenge in VOC surveillance is achieving the selectivity required for sensors to accurately identify specific compounds. By employing machine learning algorithms, with a particular emphasis on particle swarm optimization-support vector machine (PSO-SVM), we attained a classification accuracy of 100% in distinguishing between acetone, ethanol, methanol, and formaldehyde. This study demonstrates the potential for creating advanced sensors with selective detection of VOCs.
研究领域:
环境科学
·
材料科学
·
计算机科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LANGMUIR
·
2020
·
IF 3.557
Yue Liu,Song Wei,Gang Wang,Junye Tong,Jing Li,Daocheng Pan
In previous reports of the literature, ZnO nanoparticles were unexceptionally used as the electron transportation material in highly efficient CdSe-based quantum dot light-emitting diodes (QD-LEDs). However, as an amphoteric oxide, ZnO nanoparticles are chemically unstable in air. Here, we utilize quantum-sized SnO2 nanoparticles as the electron transportation layer (ETL) of CdSe-based QD-LEDs. Decreasing the size of SnO2 nanoparticles will upshift the conduction band from −4.50 to −3.84 eV based on the quantum size effect, which is beneficial to facilitate electron injection into the QD emitting layer. Our investigations show that QD-LEDs based on quantum-sized SnO2 nanoparticles exhibit comparable electroluminescence properties and higher stability in contrast to ZnO nanoparticle-based QD-LEDs, demonstrating that small-sized SnO2 nanoparticles have a bright prospect due to the ETL in QD-LEDs.
研究领域:
材料科学
·
光电学
✓ 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）