CERAMICS INTERNATIONAL
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2024
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IF 5.1
Liying Wen,Qingguo Cai,Yangfan Du,Lin Han,Xin Li,Yuanhao Wang,Shifeng Wang
Energy-saving materials have vast application prospects in the field of construction. The development of energy-efficient and smart glass is crucial for reducing building energy consumption and improvin g human living environment. In this study, We developed a novel composite material with a Cs 0.33 WO 3 @TiO 2 core-shell structure, where TiO 2 is precisely deposited on the surface of Cs 0.33 WO 3 . The incorporation of TiO 2 into Cs 0.33 WO 3 enhances visible light transmittance and significantly improves near-infrared (NIR) absorption by forming a protective core-shell structure. This structure shields Cs 0.33 WO 3 from environmental degradation while also promoting efficient charge transfer, thereby modifying its electronic properties and further boosting NIR absorption. Additionally, TiO 2 strengthens the localized surface plasmon resonance (LSPR) of Cs 0.33 WO 3 , amplifying its overall NIR absorption capacity. Cs 0.33 WO 3 attracts electrons from TiO 2 , allowing more W 6+ to be reduced to W 5+ and enhancing the transparent heat insulation performance by a factor of 4.5. Meanwhile, the core-shell heterojunction of S-scheme narrows the band gap of TiO 2 and accelerates the charge separation and transfer, retaining more active photogenerated carriers to participate in the surface redox reaction and exhibiting a 11-fold increase in the photocatalytic rate. Furthermore, a superhydrophilicity property of the composite is achieved at a contact angle of 4.5°, demonstrating strong potential for self-cleaning application. The design and fabrication of this composite material with multifaceted functions offer valuable insights for practical applications in energy-saving coating films, contributing to low-carbon development.
研究领域:
材料科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
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2025
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IF 4.5
Shuiping Zhong,Tianhan Lei,Ding Tang,Yan Ding,Guangsheng Zeng,Junnan Chen,Shouxing He,Wen Tan,Wei Weng
In this work, high-valence rhenium (Re) was firstly used as the dopant to improve the optical and transparent thermal properties of Cs 0.33 WO 3 . Among all samples, the film with 2 mol% Re doping exhibited the best transparent thermal insulation performance, with a luminous transmittance ( T lum ) of 53.5 % and a near-infrared (NIR) shielding efficiency ( Ψ NIR ) of 70.1 %. Structural and spectroscopic analyses revealed that Re 6 + successfully substituted for W 6+ in the hexagonal lattice, inducing the formation of W 5+ species and oxygen vacancies. These defect states enhanced the free carrier concentration and promoted small polaron absorption, thereby improving the NIR shielding performance. The improved transparency was also attributed to enhanced hydrophilicity and particle dispersion. The results highlighted the potential of high-valence Re doping as an effective strategy to modulate the electronic structure and defect chemistry of Cs 0.33 WO 3 , providing a new pathway for the design of advanced energy-saving smart window coatings.
研究领域:
材料科学
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光电子学
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节能涂层
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智能窗户
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纳米材料
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2017
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IF 4.784
Xingyu Xu,Weilong Zhang,Yan Hu,Yuanhao Wang,Lin Lu,Shujun Wang
Solar heat blocking materials, which can not only strongly shield the near infrared (NIR) heat rays, but also retain high visible transparency, have been widely studied and used in energy conservation of buildings . In this work, a complete process for preparation of waveband two-component transparent NIR shielding (WTNS) coatings combined ATO (antimony doped tin oxide) and Cs 0.33 WO 3 nanomaterials is proposed. ATO and Cs 0.33 WO 3 were synthesized by controllable hydrothermal methods and dispersed by a ball mill with silane coupling agents . The transmittance spectra demonstrate that WTNS coated glass shows excellent NIR shielding performance in a wide-band wavelength from 780 nm to 2500 nm, which could shield the NIR light as much as 90.9% and retain high transparency in the visible light of 70.6%. The overall energy performance assessment of this NIR shielding coatings was obtained, which includes thermal chamber test and software simulation in EnergyPlus . The chamber tests reveal the superior thermal insulation ability of WTNS coatings. The simulations indicate that for the area like Hong Kong which is cooling dominated areas, WTNS coated glass has the best energy performance which can significantly save up to 15.22% and 9.15% electricity per year in comparison with the normal glass and low-e glass, respectively.
研究领域:
材料科学
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能源工程
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建筑节能
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
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2019
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IF 5.155
Ning Li,Haikuan Fan,Yanjie Dai,Jing Kong,Lei Ge
The efficient utilization of solar light with UV–Vis-NIR spectrum in photocatalytic hydrogen process is a great confusion to explore, towards achieving high-efficient solar-to-fuel conversion. Herein, we firstly endow CdS a full-spectrum photocatalytic H 2 ability by coupling with a full-spectrum absorption material Cs 0.33 WO 3 (CWO). The CWO/CdS photocatalyst reveals the full spectrum photocatalytic ability to produce H 2 of 2648 μmol g −1 h −1 under the full spectrum, 708 μmol g −1 h −1 under visible light, which is 10 times as high as that of pure CdS nanoparticles under visible light, and 16 μmol g −1 h −1 under NIR spectrum (λ > 800 nm). Meanwhile, the composite selectively utilizes solar light: 708 μmol g −1 h −1 under λ > 420 nm and 25 μmol g −1 h −1 under >520 nm, demonstrating the main functional region of visible light is at 400–520 nm, supported by the down and up conversion of the PL analysis. By combining with the analysis, the excellent activity of hydrogen evolution is attributed to the synergistic effect of a z-scheme heterojunction and the localized surface plasmon resonance (LSPR) of CWO. This work has put forward a novel Z-scheme heterostructure for constructing high-efficient photocatalyst towards providing a new heterostructure combination and opens an insight on the usage of different solar region.
研究领域:
材料科学
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光催化
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可再生能源
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纳米技术
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太阳能转换
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）