JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Yige Qi,Guoxi Zhou,Yunchao Wu,Hou Wang,Zhiyong Yan,Yan Wu
Semiconductor photocatalysis was considered as an ideal solution to energy shortages. Herein, a novel ternary In 2 O 3 /In 2 S 3 -CdIn 2 S 4 (IOSC) nanotube (NTs) photocatalyst was successfully constructed via in situ growth of In 2 S 3 and CdIn 2 S 4 nanosheets onto In 2 O 3 skeleton. It was used for the efficient and stable photo-production of hydrogen from water splitting. The rationally designed IOSC NTs displayed significantly enhanced photocatalytic H 2 production under visible light irradiation (≥420 nm), with the highest H 2 yield determined to be 2892 μmol·g −1 , which is much higher than that of pristine In 2 S 3 and In 2 O 3 /In 2 S 3 (IOS) NTs. Cyclic testing has shown that the IOSC2 product remains stable after four cycles of repeated use. The enhanced photocatalytic activity was contributed by its tightly bound tube-nanosheets heterogeneous structure and superior light absorption. Photoelectrons transfer in IOSC2 follows a Z-scheme mechanism, which greatly facilitates its utilization of photogenerated electrons and prevents CdIn 2 S 4 from undergoing photo-corrosion affecting material stability. This work demonstrates the key role of in situ growth in the interface design of ternary heterostructures.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CRYSTENGCOMM
·
2015
·Vol. 17
·期 15
·2989-2995
·
IF 4.034
Wei Yang,Peng Wan,Hu Meng,Jiming Hu,Liang Feng
The precisely controlled synthesis of a specific morphology is proved to be highly effective for enhancing sensing performance of functional micro- and nano-materials. Thus, a comprehensive understanding of the effect of synthesis conditions on morphology evolution is of great importance. In this paper, by using In2O3 as an example, we demonstrate the great effect of supersaturation on the morphology evolution during the growth process. Under vapour-phase synthesis, by varying positions of product collection, the amount of the starting materials, and reaction temperatures, a continuous two-step route consisting of ammonolysis and re-oxidation processes was developed for the morphology evolution of several kinds of In2O3, including octahedron strings, nanowires, crystal chains, lollipop-like structures, and particles. The controlled supersaturation of the In2O3 vapour was eventually proved to be a decisive factor for the formation of various In2O3 morphologies. Furthermore, we evaluated the gas-sensing properties of the three kinds of one-pot synthesized In2O3, indicating a shape-dependent relationship with sensing performance. The present work not only offers a unique strategy to control supersaturation in vapour-phase synthesis, but also provides an opportunity to deeply understand the morphology-dependent sensing performance.
研究领域:
材料科学
·
传感器技术
✓ 已验证
DOI
高影响因子
CHEMICAL PHYSICS LETTERS
·
2021
·
IF 2.328
Guanfeng Tian,Youqing Wu,Shiyong Wu,Sheng Huang,Jinsheng Gao
In 2 O 3 , MnO/In 2 O 3 , and MgO/In 2 O 3 catalysts are synthesized by the co-precipitation method and investigated for CO 2 hydrogenation to methanol. The introduction of Mn and Mg oxides dramatically enhances the CO 2 adsorption capacity of In 2 O 3 . The changing trend of methanol selectivity is consistent with the CO 2 adsorption capacity. MnO/In 2 O 3 and MgO/In 2 O 3 catalysts show higher methanol selectivity compared with that of In 2 O 3 .
研究领域:
催化
·
化学工程
·
环境化学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Lin Li,Daocheng Hong,Bohao Liu,Tianci Su,XiuLi Yang,Lu Yue,Wenhui Zhang
Porous zinc doped indium oxide (Zn-In 2 O 3 ) nanobelts were synthesized using a straightforward hydrothermal method. The effects of different metal doping (Zn, Sn, Sm, Yb, Cu) and various concentrations of Zn on the morphology and gas-sensing properties of In 2 O 3 were investigated. The gas sensing evaluations reveal that among all tested sensors, the porous 7.5% Zn-In 2 O 3 nanobelt sensor exhibits the highest response, reaching 127 (S= R a / R g ) to 50 ppm acetone at a low operating temperature of 140°C, which is approximately 21 times greater than that of pure In 2 O 3 . Additionally, this sensor demonstrates rapid response/recovery time, a low detection limit of 40 ppb, good selectivity, excellent repeatability, and long-term stability toward acetone. In-situ diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy and density functional theory (DFT) calculations are employed to elucidate the mechanisms behind the enhanced gas-sensing performance of the porous Zn-In 2 O 3 nanobelts. The superior gas-sensing characteristics are attributed to the distinctive porous nanobelt architecture, abundant oxygen vacancies, large specific surface area, and the effects of Zn doping.
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
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Yu Peng,Bei Cheng,Liuyang Zhang,Jingjing Liu,Jiaguo Yu
As we all know, formaldehyde (HCHO) is extremely harmful to human health and has been identified as a primary carcinogen by the World Health Organization. Therefore, there is an urgent need to design efficient formaldehyde-sensing materials. In this work, a highly responsive formaldehyde sensor of In 2 O 3 @ZnO derived from MIL-68(In)@ZIF-8 precursor was successfully prepared. By adjusting the ratio of In 2 O 3 and ZnO, it can be found that the performance of the resulting sensor has greatly improved under 100 ppm HCHO at an operating temperature of 220 °C and the detection limit can be as low as 4 ppb. Additionally, it also has excellent selectivity (Q≥10), anti-interference (the deviation value≤3.5%), and long-lasting stability (the variation value≤4%). Such distinguished sensing performance can be attributed to the metal-organic framework (MOF) derived step-scheme (S-scheme) heterojunction , which ultimately increases the adsorption of oxygen and HCHO. This work verifies that ingenious heterojunction construction can significantly improve gas sensing performance.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Liyang Zhang,Yangqin Gao,Ziyu Teng,Yida Liu,Xinming Liu,Chuanbo Cong,Kezhen Lai,Linping Li,Jipeng Dong,Ning Li,Lei Ge
Mimicking the movement of leaves in response to external stimulations is inspiring for designing photocatalyst system applicable in space- and weight-sensitive scenarios. Here, we demonstrate that by combining a novel gas–liquid film growth process with a tape assisted film transfer procedure driven by capillary force, a lightweight and twistable photocatalyst assembly can be easily constructed. Taking the gas–liquid interface as a solute transfer boundary to selectively trigger the film growth at the interface, BiOI and BiOI/In 2 O 3 thin films up to 15 cm in diameter can be grown at a solution surface. Thanks to the capillary force present at the dynamic contact front during the film pick-up procedure, the grown film can be peeled off from the solution surface with tape so that a lightweight BiOI/In 2 O 3 /tape assembly can be easily constructed. Due to its low density and the BiOI/In 2 O 3 heterojunction formed, the resulting BiOI/In 2 O 3 /tape assembly exhibits superior photocatalytic activity per gram towards NO removal. Furthermore, the capillary force driven film pick-up process also induces a tight contact between the film and the tape, which makes the assembly highly twistable: its structural integrity and photocatalytic activity are largely preserved after 10,000 twists. Utilizing the film’s flexibility and twistability, we assemble a temperature-, auto-folding/unfolding photocatalyst system by transferring the film onto a memory-alloy-based structure, which mimics the movement of leaves in response to external stimulations and makes the gas–liquid interface-derived BiOI/In 2 O 3 /tape assembly suitable for use in space- and weight-limited environments.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 37
·375501
·
IF 3.874
Rongjun Zhao,Qunyan Wei,Yan Ran,Yulin Kong,Dian Ma,Linfeng Su,Lijia Yao,Yude Wang
Effectively and quantificationally detecting hazardous gas n-butanol is very significant in daily life, which can bring about a safe living condition for humans. In this study, the one-dimensional In2O3 nanorods were successfully synthesized via hydrothermal route and post-heat treatment. Noticeably, one-dimensional nanorods structures were obtained and the products presented a superior growth orientation along with (222) plane. Additionally, systematical gas-sensing measurements of the sensor made from In2O3 nanorods towards hazardous n-butanol gas were conducted. Results exhibited that the fabricated sensor showed excellent n-butanol sensing properties, with aspects to a superior response value of 342.20 with concentration 100 ppm at 240 °C, remarkable selectivity, fast response/recovery times (77.5/34.2 s) and good stability. More interestingly, the detection limit of sensor as low as 500 ppb and a good linearity relationship between response values and n-butanol concentrations was presented. Gas-sensitive properties of this sensor are better than previously reported in n-butanol detection. All results demonstrate that one-dimensional In2O3 nanorod is a promising sensor material to practical applications in effectively detecting n-butanol gas.
研究领域:
材料科学
·
传感器技术
✓ 已验证
DOI
高影响因子
IEEE Sensors Letters
·
2024
·Vol. 8
·期 8
·1-4
·
IF 2.2
Shuimin Li,Zhongkai Zhang,Jiaming Lei,Zhaojun Liu,Jiangjiang Liu,Meng Wang,Qing Tan,Rui Qi,Bian Tian
Thin-film thermocouples (TFTC) have been extensively studied for their wide range of applications in various environments. However, TFTC faces challenges in electromagnetic environments as they can generate AC interference voltage. In this study, we introduce a thermocouple temperature sensor shielded by silver (Ag) thin film on both sides of aluminum oxide (Al
2
O
3
) substrate. The high conductivity of Ag film (11.48 mΩ/□) helps reduce interference caused by alternating current, resulting in a superior electromagnetic shielding effectiveness of 43.68 dB. The temperature sensitivity coefficient of this sensor is 20.87
$\mu$
V/°C at a hot end temperature of 318.44 °C. These shielded TFTC temperature sensors show great potential for applications in aerospace, iron and steel metallurgy, and other industries.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Lijia Zhao,Shupeng Sun,Su Zhang,Xiaogan Li
Using uniform carbon nanospheres as sacrificial templates, gold nanoparticle-modified ZnO@ In 2 O 3 hollow nanospheres with controlled dimensions and porous architectures were successfully synthesized through water bath, hydrothermal and chemical reduction methods. Gas sensing evaluation revealed that the Au-decorated ZnO@ In 2 O 3 hollow nanostructures exhibited a dramatically amplified response up to 14.8 when exposed to 10 ppm formaldehyde analyte at room temperature. Furthermore, multifaceted performance benefits of Au-decorated ZnO@ In 2 O 3 over single-phase ZnO, Au-ZnO, ZnO@ In 2 O 3 heterojunction-based composites were observed, including excellent selectivity towards formaldehyde even in complex gas mixtures; tremendous sensitivity enhancement stemming from synergies between efficient gas diffusion through hollow heterojunction nanospheres and accelerated surface reactions at catalytically-active Au sites; and rapid, fully-reversible response/recovery time of 32 s and 42 s, respectively. In-depth investigations were conducted into the fundamental sensing mechanisms enabling formaldehyde detection using AC impedance spectroscopy, in situ diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS), and density functional theory (DFT) computational modeling analyses.
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
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Liangyu Zhai,Gangqiang Zhu,Fei Rao,Zehan Liu,Weibin Zhang,Lujun Zhu,Xianjin Shi,Yu Huang,Yanmin Jia,Mirabbos Hojamberdiev
The detection of formaldehyde gas generally requires a relatively high temperature. It is still challenging to simultaneously possess high sensitivity and strong selectivity for the detection of low-concentration formaldehyde at room temperature . The activation energy of the reaction can be reduced by introducing oxygen vacancies or loading the metal clusters on the surface of metal oxide-based semiconductors, leading to an improvement in the performance and detection limit of the sensor. However, this approach may lead to an increased cross-sensitivity to other gases and a reduction in the selectivity of the sensors. In this study, In 2 O 3 can capture a significant amount of adsorbed oxygen by increasing the oxygen vacancies and introducing platinum nanoclusters on the surface of In 2 O 3 synthesized with a specific morphology, leading to high sensitivity and selectivity for the detection of formaldehyde gas at room temperature. The Pt-In 2 O 3 sensor exhibits a response value of approximately 38 to a concentration of 1 ppm formaldehyde gas at 20 °C. Moreover, the developed sensor demonstrates excellent performance in a complex atmosphere and exhibits good long-term stability. The achieved high sensitivity and selectivity for the detection of formaldehyde gas at low temperatures hold significant implications for research and practical applications in the field of sensors.
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
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Ruijie Chen,Haotian Yin,Lei Wang,Zhiqiang Zhang,Jing Ding,Jinfeng Zhang,Hui Wan,Guofeng Guan
The reduction of CO 2 achieved by photocatalysis can simultaneously alleviate the energy crisis and solve environmental issues. Nevertheless, it remains challenging for the rational design of photocatalysts with high-efficiency carrier migration ability. Herein, the Z-scheme g-C 3 N 4 /In 2 O 3 (CN/INO) heterostructure was fabricated via metal–organic frameworks (MOFs) assisted thermal deposition which could form a fully encapsulated hollow tubular structure. The unique structure was based on the MOFs-derived hollow hexagonal In 2 O 3 tubular integrated with ultrathin g-C 3 N 4 . The Z-scheme CN/INO heterojunction exhibited a larger specific surface area and excellent charge separation efficiency. Benefiting from the above features, the Z-scheme CN/INO heterojunction demonstrated superior performance on photocatalytic CO 2 reduction. The formation of CO and CH 3 OH over the optimized CN/INO-2 catalyst was 7.94 and 1.44 µmol⋅g −1 ⋅h −1 , respectively. Moreover, the density functional theory (DFT) calculations and Kelvin probe force microscopy (KPFM) was carried out to further investigate the situation of charge transfer on the interface of CN/INO. The in-situ Fourier transform infrared spectroscopy (FTIR) was measured to confirm the immediate products and the possible mechanism of photocatalytic CO 2 reduction was proposed. This work provided a MOFs-assisted strategy to construct a Z-scheme system for photocatalytic CO 2 reduction.
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Haixia Xing,Xinlei Li,Shupeng Sun,Baoyu Huang,Xiaogan Li
The γ-In 2 Se 3 /In 2 O 3 nanoflower-like heterojunctions were synthesized by solvothermal treatment followed by thermal oxidation in Air. The nanoflower-like γ-In 2 Se 3 /In 2 O 3 -based chemiresistive-type sensor showed a significantly enhanced response to NO 2 at an operating temperature of 170°C. The sensor achieves a response of 2.69–0.2 ppm NO 2 at 170°C. The sensor exhibits remarkable selectivity to several possible interferents such as carbon monoxide , ammonia, formaldehyde, acetone, methanol, and toluene, and good stability at 170°C. The nanoflower structure increases the specific surface area and introduces more active sites, which improves the sensitivity of the sensor to NO 2 . The heterojunction formed between γ-In 2 Se 3 and In 2 O 3 improves the charge carrier transfer between NO 2 gas molecules and sensing materials, thereby increasing the response of the sensor to NO 2 . Density functional theory was used to elucidate this sensing mechanism, and it was found that improved sensing performance is mainly due to heterojunction formation , which increases the adsorption energy of nitrogen dioxide molecules on a sensing material surface and facilitates charge transfer between molecules.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）