LANGMUIR
·
2026
·
IF 4.4
Xin Wang,Wei-Qian Tang,Xinyu Zhao,Shuo Dong,Yu-Hui Luo,Qing-Hua Wang
This study successfully constructed a direct Z-scheme TP-WO3 heterojunction photocatalytic system via an in situ compositing strategy for the photoassisted Fenton degradation of tetracycline hydrochloride in aqueous environments. The composite formed an intimate interfacial contact between TP and WO3, effectively facilitating the separation and migration of photogenerated charge carriers. Experiments demonstrated that TP-WO3(0.7) achieved a degradation efficiency of 92.34% for 10 ppm tetracycline within 75 min under visible light irradiation with H2O2 assistance, with a reaction rate constant (2.731 × 10–2 min–1) significantly higher than those of the individual components. Radical trapping experiments and electron paramagnetic resonance (EPR) analysis confirmed that h+, •OH, and •O2– were the main active species. This study provides a feasible design strategy and experimental basis for developing efficient and stable organic–inorganic Z-scheme heterojunction photocatalytic materials.
✓ 已验证
DOI
PubMed
高影响因子
Chemosensors
·
2023
·Vol. 11
·期 4
·239
·
IF 4.2
Yanjia Ma,Ming Hou,Li Yang,Jiyun Gao,Guozhu Zhang,Ronghui Guo,Shenghui Guo
In this study, we report on the rapid preparation of WO3nanoplates decorated with noble metals and evaluate their gas-sensing performance using a high-throughput screening technique. The incorporation of Pd significantly enhanced the gas-sensing properties, and, among all of the samples tested, the WO3nanoplate containing 0.3 mol% Pd exhibited the highest response to 100 ppm xylene at 250 °C (Ra/Rg= 131.2), which was almost 56 times greater than that of the pure WO3sample. Additionally, this sample demonstrated rapid response and recovery times (τresponse= 3.9 s andτrecovery= 189.2 s, respectively). The nanoplate samples were also classified and screened using cluster analysis, and the selected samples were optimized for use in a sensor array. By applying principal component analysis and Fisher discriminant analysis, four typical gases were identified and a potential sensitization mechanism was elucidated.Keywords:high-throughput screening;volatile organic compounds;WO3;surface modification;array optimization
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xingrui Tong,Jinhui Wang,Ping Zhang,Pengyang Lei,Yi Gao,Ruirui Ren,Siyu Zhang,Rui Zhu,Guofa Cai
Tungsten trioxide (WO 3 )-based electrochromic devices have attracted great interest in smart windows, low-power displays, and other cutting-edge fields. The electrochromic behavior of WO 3 is strongly dominated by both electron conduction and ion diffusion process. Nevertheless, the structure–activity relationship of the WO 3 in the electrochromism has not been well elucidated so far. Herein, we systematically studied the relationship between the crystal structure composed of the fundamental units of typical WO 3 and the electron conduction/ion diffusion processes at a sub-nanoscale level. Our theoretical results unveil that the h-WO 3 with appropriate band gap by piling up the WO 6 octahedral molecular units along c axis profit electron conduction, and the continuous three-, six-ring tunnels along ab plane built by the units are conducive to ion diffusion. Therefore, the h-WO 3 film exhibits large optical modulation (up to 86% at 633 nm and 90% at 1000 nm), excellent cycling stability (86.4% of retention over 3000 cycles), and fast switching speed (1.9 s of bleaching time at 633 nm). Moreover, we provide unique insights between H + adsorption/desorption and the electrochromic response in the near-infrared region. We believe that this study lays a foundation for the design and construction of high-performance electrochromic nanomaterials and broadband tunable smart windows.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Xiangsen Xu,Fengye Lyu,Jiahao Chen,Yiqing Zeng,Zhaoxiang Zhong,Feng Zhang,Weihong Xing
In this work, TiO 2 nanocones grown on SiC membrane was used as the support of V 2 O 5 -WO 3 species to prepare V 2 O 5 -WO 3 /TiO 2 @SiC (VWTi(C-X)@SiC) catalytic membrane for dust filtration and NH 3 -SCR denitration. On account of the large specific surface area, abundant surface acid sites and prominent redox property, the optimized VWTi(C-550)@SiC catalytic membrane shows >90% NO removal efficiency at the temperature of 280–360 °C, which are much higher than VWTi(P-550)/SiC catalytic membrane (TiO 2 nanoparticles prepared by traditional vacuum coating titanium sol method was used as the support of V 2 O 5 -WO 3 species, NO conversion <80% at whole tested temperature). Additionally, VWTi(C-550)@SiC displays superior stability during the SO 2 + H 2 O resistance and 300 h long-term test at 300 °C, and exhibits an excellent dust filtration performance (2.5 μm SiO 2 particles interception rate exceeded 99.99%) under all test conditions. More importantly, the structure of nanocones decrease the influence of tensile stresses due to the different thermal expansion coefficients of TiO 2 and SiC membranes, which significantly suppress the fall of VWTi catalyst layer from the surface of SiC during pulse-jet cleaning. Among above results, it can be concluded that the optimized VWTi(C-550)@SiC catalytic membrane shows a prosperous application prospect for the simultaneously dust filtration and NH 3 -SCR denitration of medium–high temperature flue gas .
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2022
·
IF 5.141
Bingbing Cui,Chuanpan Guo,Guodong Fu,Zhihong Zhang
A novel photochromic and self-bleaching hydrogel was prepared based on the Cu-doped tungsten oxide (WO 3 ) hybrid encapsulated in the co-polymer matrix polymerized using acrylamide (AM) and hydroxyethyl acrylate (HEA) as monomers. The Cu-WO 3 -25 % hybrid was generated by introducing Cu species into the lattice of WO 3 with hexagonal-like prismatic structure and acted as light absorber. Given that WO 3 and Cu-doped WO 3 hybrids possess superior water solubility by using water and deep eutectic solvents (DESs, ChCl:EG) containing sufficient hydrogen bond as co-solvent, the high transparency of 90 % of the hydrogels was achieved. As compared with P(AM-HEA)-WO 3 -based hydrogel, the P(AM-HEA)-Cu-WO 3 -X hydrogel exhibited the enhanced coloration degree under UV irradiation. The P(AM-HEA)-Cu-WO 3 -25 % photochromic hydrogel changed from colorless to blue immediately once illuminated by UV light, and turns into dark-blue with the irradiation time going on. The self-bleaching process indicates it only takes 40 min for the P(AM-HEA)-Cu-WO 3 -25 % hydrogel to return to the original colorless transparent state. Furthermore, the hydrogel systems exhibit efficient antibacterial activities against bacteria of both E. coli and S. aureus , accompanying with outstanding biocompatibility. As such, the fabricated hydrogel demonstrates rapid photoresponse, self-bleaching process, superior antibacterial performance, and cell viability, showing a great potential application as stimuli-responsive materials.
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2022
·
IF 7.305
Yuanyang Zhang,Xiaoping Liang,Tao Jiang,Hongying Liu,Yadong Fu,Dequan Zhang,Zhenbo Geng
WO 3 film possesses excellent electrochemical properties and have great potential for application in electrochromic devices. The a-WO 3 /c-WO 3 dual phase laminated film was prepared by stacking amorphous film (a-WO 3 ), made by a novel electrodeposition-assisted sol-gel method, on crystalline WO 3 film (c-WO 3 ) coated on ITO substrate. The effect of the crystal phase and electrodeposition time on the structure and the properties of a-WO 3 /c-WO 3 dual phase laminated film was investigated. The dual phase laminated film exhibited excellent electrochromic performance due to the synergistic effect of a-WO 3 and c-WO 3 , as well as the featured rougher surface of the dual phase laminated film. The thickness of a-WO 3 film gradually increased with the extension of deposition time , and a-WO 3 /c-WO 3 dual phase laminated film with appropriate thickness a-WO 3 film possessed the fastest response time and the highest optical contrast. The optimized a-WO 3 /c-WO 3 dual phase laminated film exhibited excellent electrochromic performance with high optical contrast (70.6% at 633 nm) and high coloring efficiency (53.6 cm 2 C −1 at 633 nm). Under without ion storage layer, the electrochromic device (ECD) with laminated structure dual phase a-WO 3 /c-WO 3 film as the electrochromic layer has been successfully assembled, which shows fascinating performance, providing a useful reference for the facile processing and application of electrochromic WO 3 film in smart windows .
✓ 已验证
产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 9
·期 15
·2102566
·
IF 6.389
Yi Yin,Haoyu Zhu,Tao Wu,Pengkun Liao,Changyong Lan,Chun Li
A bistable electrochromic (EC) device which can reversibly transform between transparent, mirror, and black states based on reversible metal Ag electrodeposition is achieved by introducing 1) a (3-mercaptopropyl) trimethoxysilane (MPTMS)-treated indium-tin-oxide (ITO) glass electrode modified with WO 3 nanoislands (WNs) as the rough surface and 2) ionic liquids (IL) into electrolyte to form an anion-blocking layer, toward achieving long-term memory performance. Typically, the EC cell is packaged by sandwiching gel electrolyte between the flat and WNs-modified ITO electrodes. Under opposite voltages, this smart device can transfer from transparent to black (+2.5 V/9.4 s) or mirror (−2.5 V/8.3 s) state by depositing Ag on the WNs-modified or flat ITO electrode surface, respectively. The assembled device exhibits over 80% mirror reflectance and below 10% transmittance of black state. After power off, both the black and mirror states remain bistability for a long time (>30 min) when IL are introduced into electrolyte for the EC device. The electrical double layer in the highly viscous electrolyte with IL contributes to form a barrier to bromide ions, which protects the Ag layer from dissolution at open circuit. This multifunctional energy-efficient EC device has shown great potential and competitiveness for numerous applications compared to conventional EC devices.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2022
·
IF 9.221
Zhijia Li,Muzhou Teng,Ronghua Yang,Feiyan Lin,Yu Fu,Weiqiang Lin,Judun Zheng,Xiaoping Zhong,Xiaodong Chen,Bin Yang,Yuhui Liao
Humidity sensing is a promising method for monitoring respiration and diagnosing diseases. However, the fabrication of a semiconductor-based humidity sensor with fast response/recovery times and high sensitivity even under wet conditions remains challenging. In this study, a quartz crystal microbalance (QCM) humidity sensor was fabricated using Sb-doped WO 3 nanocrystals via a simple solvothermal method . Sb doping increased the number of oxygen vacancies and led to a narrow band gap. It also restricted the further growth of WO 3 and provided more adsorption sites, which resulted in a small particle size and large specific surface area. The device displayed a wide range of relative humidity (0–85%) with fast response and recovery times (10 and 1.6 s, respectively) and good long-term stability. After 100 cycles of wet treatment, the response of the sensor recovered to 92.2%, showing good self-recovery ability. The Sb/WO 3 -based QCM sensors were applied to the sensitive monitoring not only of respiratory humidity but also of moisture changes of a wound; the latter had never previously been performed using a QCM. This study therefore provides valuable insights for the development of integrated wound-microenvironment monitoring.
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Yongxiang Wang,Guocan Shen,Ting Tang,Jinming Zeng,Rizwan Ur Rehman Sagar,Xiaopeng Qi,Tongxiang Liang
Electrochromic capacitors are attracting a huge attention due to their dual functions in energy-saving and energy storage. Electrochromic and energy storage performance of the films could be effectively improved through regulating their physical phase and morphology. In the present work, the physical phase and morphology of the WO 3 nanofilms were regulated by doping RE ions (RE = Ce, Eu, Sm, Gd) using one-step hydrothermal technology. The three-dimensional (3D) urchin-like crystal WO 3 nanofilm would transfer into the 3D nest-like WO 3 (WO 3 -RE) nanofilms that consisted of crystal and amorphous phase by doping RE ions. Compared with the pure WO 3 nanofilm, the WO 3 -RE nanofilms exhibited higher optical contrast, faster switching speed, longer cyclic stability, and larger areal capacitance owing to faster ions transfer rate and more stable film structure. The optical contrast of WO 3 -Eu and WO 3 -Sm nanofilms were 76.3% and 73.8% at 633 nm, 75.5% and 74.6% at 900 nm wavelength, respectively. Notably, the WO 3 -Eu and WO 3 -Sm nanofilms could retain 99.6% and 99.1% of their original optical contrasts after 1000 cycles, respectively. Additionally, the areal capacitance of ECDs based on the WO 3 /PB, WO 3 -Ce/PB, WO 3 -Eu/PB, WO 3 -Sm/PB, and WO 3 -Gd/PB were 26.15, 49.27, 58.23, 71.46, and 79.52 mF/cm 2 at 0.3 mA/cm 2 , respectively. ECDs based on the WO 3 -RE/PB are promising for energy-saving and energy storage dual functional smart windows.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Mingming Zhang,Weiqiang Zhou,Danqin Li,Zian Huang,Xueqian Zhao,Yize Li,Xiaojing Hao,Jingkun Xu
The low energy density of supercapacitors (SCs) is one of the main factors restricting their development. WO 3 with high theoretical capacitance is an ideal n-type material for anode electrode, but its narrow potential window and low conductivity are not conducive to the application of high-energy-density SCs. Herein, a high electrochemical activity poly(indole-5-carboxylic acid) (P5-ICA) as p-type material wrapping n-type oxygen vacancies WO 3 vertically nanowire arrays supported on carbon cloth is prepared by hydrothermal method and subsequent electrodeposition method. This adhesive free flexible p/n-type hetero-structural P5-ICA@WO 3 vertical nanowire array electrode has a three-dimensional porous nanostructure that not only provides a large surface area, but also promotes the penetration of electrolyte ions and the transmission of electrons. It is found that the P5-ICA@WO 3 nanowire array with high areal specific capacitance (1430 mF cm −2 at 4 mA cm −2 ) and long cycle stability (94 % after 6000 cycles) exhibits a widened electrochemical activity window compared to individual material. The symmetrical SCs assembled using P5-ICA@WO 3 can provide a high areal energy density of 137.6 μWh cm −2 at the power density of 1.4 mW cm −2 , which is significantly higher than the SCs performance of previously used WO 3 -based electrode materials.
✓ 已验证
产品关联
DOI
高影响因子
Reaction Chemistry & Engineering
·
2023
·Vol. 9
·期 1
·70-81
·
IF 3.9
Yuxuan Shao,Dan You,Yuqi Wan,Qingrong Cheng,Zhiquan Pan
The activation capacity of molecular oxygen is an important indicator to evaluate the photocatalytic efficiency of a catalyst. In this paper, MoO3−x nanosheets with oxygen vacancies were deposited on WO3 nanoflowers to form a WOM heterojunction, which improved the photocatalytic performance and molecular oxygen activation ability of the catalyst. This novel WOM heterojunction exhibited excellent photoactivity for degrading rhodamine B (RhB), photocatalytic water splitting ability and molecular oxygen activation ability under sunlight irradiation. Among all the samples, WOM83% could degrade 98% of 30 ppm RhB in 40 min. Meanwhile, WOM83% exhibited the highest hydrogen generation rate (4214.2 μmol h−1 g−1) and the strongest TMB oxidation capacity, and can generate 2.23 μmol of ·O2− in 50 min. The enhanced photocatalytic performance via heterojunction construction may be attributed to these following reasons: (i) higher light absorption achieved by the MoO3−x and WO3 composite; (ii) the matched energy band gap of MoO3−x and WO3 led to higher photogenerated carrier mobility; (iii) MoO3−x with oxygen vacancies as electron traps suppressed the photogenerated carrier recombination; (iv) enhanced molecular oxygen activation ability of the WOM heterojunction, such as the production of ·O2−. The measurements for TMB photo-oxidation and ·O2− showed excellent molecular oxygen activation ability of WOM heterojunctions. Finally, a possible photocatalytic mechanism was proposed. This study provided a viable option for the application of materials with oxygen vacancies to remove pollutants and improve molecular oxygen activation ability.
✓ 已验证
产品关联
DOI
高影响因子
Molecular Catalysis
·
2021
·
IF 5.062
Kang Hu,Man Zhang,Biying Liu,Zhiyu Yang,Ruiqi Li,Kai Yan
2,5-furandicarboxylic acid (FDCA) is a key precursor for the sustainable synthesis of environmentally friendly materials such as polyethylene 2,5-furandicarboxylate (PEF). Developing noble-metal free and robust electrocatalysts are of great importance for the eco-friendly upgrading of biomass-derived 5-hydroxymethylfurfural (HMF) to produce FDCA. Herein we demonstrated a facile one-step hydrothermal method to grow tungsten trioxide (WO 3 ) nanorods on Ni foam, which was efficient for the electrochemical oxidation of HMF to FDCA. The 3D porous WO 3 /Ni electrode was controllably synthesized at low temperature with the aid of polyethylene glycol (PEG) template. Three types of electrodes were investigated and the catalytic results showed excellent electrochemical performance with the high electrochemically active surface area (ECSA) up to 40.0 cm 2 , 99.4 % HMF conversion rate, 88.3 % FDCA yield and 88.0 % Faradaic efficiency in 1.0 M KOH electrolyte under ambient conditions, avoiding the traditionally harsh environment (e.g. extra oxygen sources, high temperature and pressure). Besides, the product distribution, reaction kinetics and mechanisms were also investigated. This work provides an alternative and efficient way of electrocatalytic processing of biomass-derived monomers using noble-metal free catalysts under ambient conditions.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）