FUEL
·
2023
·
IF 7.4
Jun Li,Na Luo,Yinhai Wang,Han Li,Tao Zhang,Xingui Tang,Zhengfa Hu
Solar energy is considered sustainable green energy to prevent environmental pollution. Tungsten trioxide (WO 3 ) is one of the attractive solar energy-driven photocatalysts and photocatalytic supports. Besides, Hydrogen (H) has a small size and can move into many inorganic compounds, and occupy the sites in microstructure as well, with little space structure expansion. H doping in semiconductors attracts more and more attention due to its effect of providing free carriers, resulting in localized surface plasmon resonances which can improve the utilization efficiency of solar energy. In our research, we developed a new method to prepare the H-doped WO 3 whose color turned green, and to prepare Ag/H x WO 3 , which could extend the solar light response range to near-infrared. Furthermore, the photocatalytic activity to degrade RhB solution under UV light and visible light was both improved. The density of free electrons is based on the Drude model to discuss the mechanism of photocatalysis upon the visible. The contact of noble metal Ag and H x WO 3 can play a vital effect in the separation of photogenerated electron-hole pairs. The localized surface plasmon resonances and green coloration bring the tungsten trioxide more remarkable performance together. Results showed that constructed photocatalysis of this work greatly enhanced the utilization rate of solar energy. Photocatalytic for the Degradation of liquid organic pollutants with H x WO 3 is believed to have a bright feature.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CATALYSIS
·
2019
·
IF 7.723
Renshan Wang,Ganhua Qiu,Yi Xiao,Xueqin Tao,Wen Peng,Benxia Li
In this work, an all-solid-state Z-scheme photocatalyst of WO 3 ·H 2 O/Pd/CdS ternary heterostructures was constructed by introducing a small amount of Pd into the optimized WO 3 ·H 2 O/CdS binary system, where Pd nanoparticles (NPs) were sandwiched between WO 3 ·H 2 O nanosheets and CdS NPs. The WO 3 ·H 2 O/Pd/CdS ternary heterostructures exhibited remarkably enhanced photocatalysis towards the oxidative coupling of benzylamines to imines, compared with the other photocatalysts of WO 3 ·H 2 O, CdS, WO 3 ·H 2 O/CdS, WO 3 ·H 2 O/Pd, and WO 3 ·H 2 O/CdS/Pd. The wavelength-dependent photocatalysis of WO 3 ·H 2 O/Pd/CdS is in good agreement with its light-harvesting intensity at the corresponding wavelengths. The photoelectrochemical results reflected the enhanced charge carrier separation in WO 3 ·H 2 O/Pd/CdS, and the photocatalytic H 2 evolution confirmed the highly efficient Z-scheme charge transfer in this ternary photocatalyst. Therefore, the WO 3 ·H 2 O/Pd/CdS ternary heterostructures possess distinct advantages of extended light harvesting region, spatial separation of electron and holes, and elevated redox power, which synergistically contribute to the superior photocatalysis. The Pd NPs sandwiched between WO 3 ·H 2 O and CdS acted as not only an electron mediator to facilitate the interfacial charge separation but also a cocatalyst to accelerate the selective oxidation of benzylamine. This work demonstrates a rational design of highly efficient Z-scheme photocatalysts and presents some revelations about the photocatalytic mechanism for selective organic transformations.
✓ 已验证
产品关联
DOI
高影响因子
RARE METALS
·
2025
·
IF 11
Wang Ding,Qin Rui-Jie,Yu Jie-Jie,Hu Jin-Wu,Zhang Wen-Hui,Xu Hui,Xu Jing-Cheng,Liao Qiao-Bo,Li Hui-Jun,Wang Xu-Hui
The semiconductor gas sensors used for xylene gas detection in real time has been restricted by the inadequate sensitivity and selectivity. Constructing a bilayer cascade sensor with the catalysis-gas sensitivity synergistic is considered as an effective solution. Herein, the Ag@CeO 2 nanosheets are synthesized by heat treating the Ag@Ce-MOF, which synthesized via solvothermal method. The morphological evolution of cerium metal–organic framework (Ce-MOF), regulated by Ag ions, is investigated, and the transformation mechanism is proposed. The bilayer sensors were constructed by using WO 3 nanofibers, prepared via the electrospinning method, as the sensitive layer and the Ag@CeO 2 nanosheets as the catalytic layer, respectively. The bilayer sensors exhibit remarkable performance in response to xylene. The response value ( R a / R g ) of WO 3 /Ag@CeO 2 sensor to 10 ppm xylene gas reaches 32.13 at the operating temperature of 160 °C. Additionally, the sensor displays an exceptional response to even trace amounts of xylene, as low as parts per billion (ppb). The catalysis-gas sensitivity synergistic mechanism was elucidated by capturing catalytic intermediates using online mass spectrometry. These findings provide a novel strategy for benzene series (BTEX) sensor and offer a novel approach to prepare two-dimensional Ce-MOF and its derived materials with tailored properties. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2017
·
IF 7.504
Jian Huang,Dayan Ma,Feng Chen,Dongzhen Chen,Min Bai,Kewei Xu,Yongxi Zhao
Surface-enhanced Raman scattering (SERS) has proven to be an effective technique for identifying and providing fingerprint structural information on various analytes in low concentration. However, this analytical technique has been plagued by the ubiquitous presence of organic contaminants on roughened SERS substrate surfaces, which not only often result in poorer detection sensitivity but also significantly affect the reproducibility and accuracy of SERS analysis. Herein, we developed a clean, stable, and recyclable three-dimensional (3D) chestnutlike Ag/WO3–x (0 < x < 0.28) SERS substrate by simple hydrothermal reaction and subsequent green in situ decoration of silver nanoparticles. None of the organic additives were used in synthesis, which ensures the substrate surfaces are completely clean and free of interferences from impurities. The innovative design combines the SERS enhancement effect and self-cleaning property, making it a multifunctional and reusable SERS platform for highly sensitive SERS detection. Using malachite green as a model target, the as-prepared SERS substrates exhibited good reproducibility (relative standard deviation of 7.5%) and pushed the detection limit down to 0.29 pM. The enhancement factor was found to be as high as 1.4 × 107 based on the analysis of 4-aminothiophenol. The excellent regeneration performance indicated that the 3D biomimetic SERS substrates can be reused many times. In addition, the fabricated substrate was successfully employed for detecting thiram in water with a detection limit of 0.32 nM, and a good linear relationship was obtained between the logarithmic intensities and the logarithmic concentrations of thiram ranging from 1 nM to 1 μM. More importantly, the resultant SERS-active colloid can be used for accurate and reliable determination of thiram in real fruit peels. These results predict that the proposed SERS system have great potential toward rapid, reliable, and on-site analysis, especially for food safety and environmental supervision.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FUEL
·
2015
·
IF 3.52
Guochang Chen,Hongbin Qiao,Jikang Cao,Zhicai Wang,Mingfu Ye,Cun-Yue Guo,Piaofei Ding,Xiaoming Wen
An effective method in obtaining well-dispersed mesoporous WO 3 /SiO 2 colloidal spheres (WMWCSs) with a specific surface area of 1370 m 2 g −1 , pore volume of 0.84 cm 3 g −1 , and pore size of 2.44 nm was developed. This method allows easy control over the morphology, size and dispersity of the hybrid spheres by the variation of synthetic conditions. The formation mechanism on the as-prepared WMWCSs was proposed as well. Treated with sulfuric acid, the resulted WO 3 /SiO 2 colloidal spheres exhibited excellent catalytic activity in the synthesis of biodiesel via the esterification of long-chain free fatty acids (FFAs). A 96.9% conversion of oleic acid was realized under optimized conditions, 3 wt% of catalyst and 6 h of reaction time, while the catalyst suffered no obvious loss in activity for five consecutive runs.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Renjun Si,Hongze Jiang,Suijiang Xie,Xin Guo,Shunping Zhang
In response to the challenges posed by limited portability and high costs associated with current fractional exhaled nitric oxide (NO) detection equipment, a miniaturized metal oxide semiconductor (MOS) gas sensor has been developed for NO detection, leveraging the principles of MOS gas sensors and MEMS technology. This sensor employs 2 mol% Ta-WO 3 as its sensitive material, achieving a NO detection limit of 5 ppb, along with rapid response and recovery times of 30 seconds and 10 seconds respectively. It also exhibits exceptional selectivity and stability. During tests involving both single-component gases and mixtures containing twelve interfering gases, the response amplitude and interference rate for NO remained below 5 ppb. This indicates that the 2 mol% Ta-WO 3 sensor demonstrates commendable precision and practicality. The choice of sensitive material, along with its performance optimization methods, holds significant importance for advancing research in NO detection as well as enhancing the selectivity of MOS gas sensors.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Chaolong Liu,Keng Xuan,Yaoping Guo,Hao Jiang,Wenjie Ma,Xuegang Wang,Zhongkui Zhou,Jun Li,Yadan Guo
WO 3 -based materials are theoretically promising photocatalysts for uranium(VI) removal due to their stability and narrow bandgap (∼2.8 eV), but they are limited by a lack of adsorption sites and a tendency for photogenerated electron-hole pairs to recombine. Herein, La-doped WO 3 (W 0.9 La 0.1 O 3-x ) rich in oxygen vacancies (OVs) was prepared via a facile hydrothermal method. La doping and the introduction of OVs provided abundant active sites, optimized the band structure, increased electron density, and inhibited electron-hole pair recombination of W 0.9 La 0.1 O 3-x , which resulted in a maximum U(VI) extraction capacity of up to 1199.73 mg/g through synergistic adsorption-photocatalytic reduction processes. Interestingly, W 0.9 La 0.1 O 3-x demonstrated excellent stability and increased recyclability, superior to that of most reported adsorbents and photocatalysts, probably owing to the strong stability of W and La atoms as well as the additional OVs formed from self-reduction of W 0.9 La 0.1 O 3-x during photocatalytic reaction process. Overall, this study expands the application of WO 3 -based materials for U(VI) removal from wastewater and provides valuable theoretical insights and technical guidance for addressing the challenge of balancing removal rate and stability of U(VI) extraction materials.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Yongji Wei,Yanan Xu,Qi Zheng,Qingfeng Li,Yuchen Huang,Yuyan Cao,Nengqin Jia,Chaomin Zhang,Yang Chen
The rational construction of semiconductor heterojunctions with abundant active specific area and matched energy band alignment is vital to boosting photocurrent response in highly sensitive photoelectrochemical (PEC) sensors. Here, a molecularly imprinted PEC sensor is proposed based on a WO 3 /BiVO 4 heterojunction using CAU-17, a Bi-based metal-organic framework (MOF), as a structural control agent. Unlike the conventional embedding structure, in which WO 3 is covered by BiVO 4 or vice versa, this MOF-derived WO 3 /BiVO 4 hybrid comprises WO 3 nanoleaves and uniformly distributed BiVO 4 nanoparticles. This structure offers a comparatively large surface area, enhancing light adsorption and enhancing solid-solid and solid-liquid interfacial contact, thereby promoting photogenerated electron-hole separation, rapid charge transfer, and interfacial reaction. With the aid of molecular imprinting technology, the WO 3 /BiVO 4 -based PEC sensor is capable of quantitatively detecting amoxicillin, a frequently prescribed antibiotic in both human and veterinary medicine. This sensor exhibits broad linear range of 10 −3 –10 3 μmol L −1 , low detection limit of 2.4 × 10 −4 μmol L −1 , high specificity, reproducibility, and stability. Furthermore, it has significant practical potential for environmental pollution monitoring.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Bingbing Cui,Guodong Fu
Given that heterojunction engineering is an effective method for improving the separation efficiency of photoexcited electrons in WO 3 -based photochromic systems, a series of solid-state photochromic Zr/Ti-MOF@WO 3 heterojunctions prepared via a facile hydrothermal strategy, where Zr/Ti-MOF with photosensitivity and chemical stability was selected as template to load WO 3 . Zr/Ti-MOF@WO 3 heterojunctions were verified as nanoparticles filled with thin layer structure and WO 3 was diffused into the Zr/Ti-MOF planar. The appropriate conductive band energies facilitate the transport of photostimulated electrons from Zr/Ti-MOF to WO 3 , resulting in a fast photresponse in color changes (it only takes 1 s). In addition, a carrier for information storage and data dynamic encryption was developed on the basis of the photochromic Zr/Ti-MOF@WO 3 heterojunctions. This work presents a promising way to improve the electron/holes separation efficiency by constructing unique heterojunctions and further explore novel WO 3 -based photochromic systems and broaden their applications in rewritable media and data security.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Xiaoyu Lu,Congling Li,Li Zhang,Wei Xia,Rui Liu,Aifeng Lv
The rational design of efficient, cost-effective, and durable electrocatalysts is crucial for the realization of hydrogen production through water splitting. The present study describes the synthesis of a novel three-dimensional (3D) volcano-like Fe 3 S 4 /Ni 3 S 2 /WO 3 /NiFe LDH/NF (Layered Double Hydroxides/Nickel Foam) electrocatalyst with a highly wrinkled structure through a two-step hydrothermal method. The as-synthesized electrocatalyst exhibits an exceptionally low overpotential of 77 mV for the hydrogen evolution reaction (HER) and 131 mV for the oxygen evolution reaction (OER) at a current density of 10 mA cm −2 , owing to the unique morphology and strong electronic interactions between Fe 3 S 4 , Ni 3 S 2 and WO 3 heterostructures. The Fe 3 S 4 /Ni 3 S 2 /WO 3 /NiFe LDH/NF electrocatalyst demonstrates exceptional performance in overall water splitting when employed as both anode and cathode, achieving a current density of 10 mA cm −2 at an impressively low cell voltage of 1.5 V as well as exhibiting remarkable durability with little degradation over a period of 12 hours. This study presents a straightforward approach for the synthesis of highly efficient and durable non-noble metal catalysts for overall water splitting under hydrothermal conditions.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Shuqi Zhou,Xiuyu Liu,Lu Xiao,Qin Huang,Shuangfei Wang,Yan Jiang
Lignocellulose nanomaterials are extremely compelling in the remediation of organic wastewater, yet still present challenges regarding cost-efficiency, manufacturability, and scalability. Instead of a conventional bottom-up engineering, this study top-down designs multiporous, high specific surface area and anisotropic quaternized lignocellulose nano-sponge, based on the effectiveness of reactive deep eutectic solvent system on in-situ fibrillating sugarcane cell walls. The as-prepared sugarcane sponge reveals outstanding adsorption abilities for broad-spectrum antibiotics via a combination of intermolecular and electrostatic interactions, and serves as a desired carrier for hybrid nano-catalysts (e.g. WO 3 -Ag) with enhanced overall quantum efficiency. The developed sugarcane/WO 3 /Ag sponge integrating a functionality of adsorption enrichment with visible-light photocatalysis , can efficiently remove ∼ 99 % tetracycline/levofloxacin/norfloxacin at an initial concentration of 20 mg/L within 120 min at pH 7. The degradation pathway of antibiotics is inferred from the identified intermediates and primary active species. Additionally, the favorable mechanical strength, water stability and reusability of sugarcane/WO 3 /Ag sponge are demonstrated, which originate from the well-organized lignocellulose fibrils in in-situ fibrillated sugarcane cell wall and their intensive interactions with anchored nanoparticles. Our study offers a novel and feasible top-down nanostructure engineering strategy to manufacture high-performance lignocellulose-based nanocomposites towards environmental remediation.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Yongxiang Wang,Jinming Zeng,Zuohao Zhou,Guocan Shen,Ting Tang,Rizwan Ur Rehman Sagar,Xiaopeng Qi
Constructing a nanostructured electrochromic film and enhancing the bonding strength between the electrochromic film and electrode would effectively improve the charge transport and stability of the electrochromic film. In the present study, nanoporous WO 3 films, including WO 3 films without polydopamine (W-x, x = 2, 3, and 4) and WO 3 films with polydopamine (PW-x, x = 2, 3, and 4), were built using a low-temperature hydrothermal method. The PW-x films showed significantly improved electrochromic cycle stability compared to the W-x films because the bonding strength between the ITO glass electrode and the WO 3 film was enhanced by polydopamine (PDA) film. Notably, the PW-2 film still retained 90.8% of its original optical contrast after 5000 cycles. In addition, both the W-2 and PW-2 films exhibited high optical contrast from visible to infrared regions owing to their 3D network nanoporous structure; their optical contrasts were 71.5% and 69.7% at 700 nm, respectively. Both the W-2 and PW-2 films also exhibited high coloration efficiency and areal capacitance; their coloration efficiencies were 80.4 and 72.5 cm 2 /C, and areal capacitances were 59.38 and 75.32 mF/cm 2 , respectively. PW-2 film is promising for electrochromic energy-saving smart windows with power storage.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）