FUEL
·
2022
·
IF 8.035
Jiaru Peng,Ying Wang,Jiayu Bai,Dingxuan Ma,Ruiyang Zhao,Jishu Han,Lei Wang
Photocatalytic water splitting utilizes solar energy to produce hydrogen, which is considered as one of the most efficient approaches for solving the current global energy and environmental crises. In this work, hollow ZnTiO 3 nanospheres were prepared by calcination method, then ZnS was loaded onto the surface of ZnTiO 3 . At last, Zn 0.98 Cu 0.02 Se nanocrystals with different concentrations were modified at the outermost layer. The optimal photocatalytic hydrogen evolution amount of Zn 0.98 Cu 0.02 Se/ZnS/ZnTiO 3 reached to 36662.23 μmol·g −1 in 6 h. The construction of ternary photocatalyst effectively improved the utilization rate of light absorption, realized the rapid separation and transfer of electrons, significantly suppressed the recombination of charge carriers and was benificial for the enhancement of photocatalytic hydrogen evolution performance.
研究领域:
材料科学
·
能源科学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Jin Qin,Zuo Tian,Gang Chen,Yu Zhao
Bismuth-based semiconductor materials have garnered significant attention because of their appropriate optical bandgap and substantial photoelectric conversion efficiency. Enhancing the photocurrent and fill factor of photovoltaic films is essential for developing high-performance optoelectronic devices. In this study, high-performance BiVO 4 -ZnTiO 3 multilayer films were fabricated using a straightforward sol-gel method, where the incorporation of ZnTiO 3 films significantly improved the photovoltaic performance of BiVO 4 . Through structural design aimed at enhancing light utilization, the BiVO 4 -ZnTiO 3 multilayer film achieved a photocurrent density of 1.9 mA/cm 2 at 450 nm, along with a fill factor of 46.8 % in the composite multilayer structure. The improvement in film performance is attributed to the overall multilayer stacking effect. This study offers a novel approach for utilizing bismuth-based semiconductors in optoelectronics.
研究领域:
材料科学
·
光电子学
✓ 已验证
DOI
高影响因子
JOURNAL OF RARE EARTHS
·
2015
·
IF 1.261
Mengting LI,Baoxiang JIAO
ZnTiO 3 :Eu 3+ phosphors were synthesized with different concentrations of Eu 3+ doping through sol-gel method. The samples were calcined at different temperatures for 2 h in air. The synthesized powders were characterized by X-ray diffraction (XRD), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS), transmission electron microscopy (TEM), Raman and photoluminescence spectroscopy. The XRD results showed that the ZnTiO 3 :Eu 3+ phosphors doped with different concentrations of Eu 3+ ions calcined at 600 °C were of single phase, which indicated that the Eu 3+ ions had been successfully incorporated into the ZnTiO 3 host lattice and did not destroy the lattice structure of ZnTiO 3 host. The Raman spectrum, SEM and TEM also proved that the doping of Eu 3+ did not change the lattice structure of hexagonal ZnTiO 3 host. The photoluminescence (PL) of Eu 3+ ions with the main emission peak at 614 nm was observed to increase with Eu 3+ concentrations from 0.5 mol.% to 2.0 mol.% and decreased when the concentration was increased to 2.5 mol.%. The decrease in the PL intensity at higher Eu 3+ concentrations could be associated with concentration quenching effect. The CIE1931 chromaticity diagram ( x , y ) of ZnTiO 3 :2.0 wt.%Eu 3+ phosphors were located in the red region ( x =0.652, y =0.347). The luminescence properties suggested that ZnTiO 3 :Eu 3+ phosphors might be regarded as a potential red phosphor candidate for light emitting diodes (LEDs).
研究领域:
材料科学
·
光学
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产品关联
DOI
高影响因子
Advanced Energy Materials
·
2019
·Vol. 9
·期 40
·1901620
·
IF 24.884
Jing Wei,Fengwan Guo,Bing Liu,Xiangyu Sun,Xi Wang,Zijiang Yang,Kun Xu,Ming Lei,Yicheng Zhao,Dongsheng Xu
Although planar-structured perovskite solar cells (PSCs) have power conversion efficiencies exceeding 24%, the poor photostability, especially with ultraviolet irradiance (UV) severely limits commercial application. The most commonly-used TiO 2 electron selective layer has a strong photocatalytic effect on perovskite/TiO 2 interface when TiO 2 is excited by UV light. Here a UV-inert ZnTiO 3 is reported as the electron selective layer in planar PSCs. ZnTiO 3 is a perovskite-structured semiconductor with excellent chemical stability and poor photocatalysis. Solar cells are fabricated with a structure of indium doped tin oxide (ITO)/ZnTiO 3 /Cs 0.05 FA 0.81 MA 0.14 PbI 2.55 Br 0.45 /Sprio-MeOTAD/Au. The champion device exhibits a stabilized power conversion efficiency of 19.8% with improved photostability. The device holds 90% of its initial efficiency after 100 h of UV soaking (365 nm, 8 mW cm −2 ), compared with 55% for TiO 2 -based devices. This work provides a new class of electron selective materials with excellent UV stability in perovskite solar cell applications.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
Advanced Energy and Sustainability Research
·
2023
·Vol. 4
·期 10
·2300072
·
IF 5.8
Haohui Huang,Xingqiang Liu,Feng Li,Qingyun He,Chengfa Tao,Longfu Wei,Changlin Yu,Hongbing Ji
Herein, well-crystallized ZnTiO 3 particles are first prepared by hydrothermal method. A series of S-scheme heterojunction photocatalysts of ZnTiO 3 /g-C 3 N 4 (referred to as ZTO/CN) with different mass ratios are synthesized by successfully doping ZnTiO 3 in g-C 3 N 4 precursors and loading ZnTiO 3 onto g-C 3 N 4 nanosheets by calcination. It is clearly found that the ZnTiO 3 particles are successfully loaded on g-C 3 N 4 nanosheets by the X-ray diffractometer, energy-dispersive X-ray spectra, and high-resolution transmission electron microscopy images. Moreover, the specific surface area of 3.0% ZTO/CN is higher than that of pure g-C 3 N 4 . Using triethanolamine as the hole sacrificial agent, the highest CO and H 2 yields are achieved in the 3.0% ZTO/CN composite catalyst under the xenon lamp irradiation for 1 h. The generation rates of CO and H 2 reach 15.19 and 5.77 μmol g −1 h −1 , respectively, which are 2.9 and 4.1 times higher than that of pure g-C 3 N 4 . The CO and H 2 yields of the ZTO/CN composite catalyst show a trend of increasing and then decreasing with the increasing of ZnTiO 3 content, which is due to the fact that excess ZnTiO 3 can lead to a reduction of the effective heterojunction interface between ZnTiO 3 and g-C 3 N 4 , decreasing the transfer and separation efficiency of photogenerated electrons and holes and thus reducing the photocatalytic activity.
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
RESEARCH ON CHEMICAL INTERMEDIATES
·
2018
·Vol. 44
·期 11
·6621-6636
·
IF 1.674
Kang Chunli,Xiao Kunkun,Yao Zhifu,Wang Yuhan,Huang Dongmei,Zhu Ling,Liu Fang,Tian Tao
Pure phase ZnTiO 3 was prepared through a sol–gel process, then graphene-ZnTiO 3 nanocomposites were synthesized by a hydrothermal method using the prepared ZnTiO 3 nanoparticles and graphene oxide as precursors. X-ray diffraction results revealed the production of pure cubic ZnTiO 3 at 600 °C. ZnTiO 3 was anchored on the graphene nanosheets, demonstrating a spherical morphology in transmission electron microscope images. The existence of chemical bond Ti–O–C in the nanocomposites was proved by Fourier-transforming infrared spectroscopy. UV–Vis diffusive reflection spectra indicated that the absorption edge of the nanocomposites shifted towards the visible region. The photocatalytic activity of the composites was tested through the photocatalytic degradation of methyl blue under simulated solar irradiation. The results showed that the photocatalytic activity of the nanocomposites was obviously increased in contrast to pure ZnTiO 3 , which was strongly affected by the crystalline structure of ZnTiO 3 and the concentration of graphene. The enhanced photocatalytic activity was mainly attributed to the conglomeration inhibition of ZnTiO 3 nanoparticles, the electron transfer between ZnTiO 3 and graphene and the extended absorption range. Furthermore, other contaminants such as tetracycline, Rhodamine B and methyl orange were tested under the same conditions to investigate the photocatalytic performance of the photocatalysts. The reusability tests indicated that the prepared composites exhibited good stability.
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
LANGMUIR
·
2025
·
IF 3.9
Liuen Wang,Yang Lu,Shuying Wang,Mengjia Li,Lan Zhang,Huizhong Ma
Tetracycline (TC) is a broad-spectrum antibiotic, and its introduction into the environment is known to cause serious water pollution issues and can result in the evolution of drug-resistant genes and superbugs. In this study, a new ZnTiO3–SrTiO3 double perovskite composite photocatalyst, synthesized using a simple molten salt method, was found to exhibit excellent performance in the photocatalytic degradation of TC in an aqueous solution under visible-light photoirradiation at λ = 420 nm. Individually, ZnTiO3 and SrTiO3 were identified as being inactive in the same reaction. However, the addition of Bi2O3 to the ZnTiO3–SrTiO3 composite (Bi2O3/ZnTiO3–SrTiO3) formed a dual-Z-scheme heterojunction, achieving 87.1% photocatalytic degradation rate of TC within 60 min. The obtained reaction rate constant (k = 0.03052 min–1) was 9.5 and 1.62 times higher than those achieved using the individual SrTiO3 (k = 0.00321 min–1) and ZnTiO3–SrTiO3 (k = 0.01882 min–1) species, respectively. Furthermore, a potential degradation pathway and mechanism for TC degradation using the Bi2O3/ZnTiO3–SrTiO3 composite photocatalyst was proposed. Overall, this approach provides a cost-effective and efficient method for preparing dual Z-scheme heterojunction photocatalysts.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Jiaying Zhang,Wenjie Zhang,Yue Zhang
Zinc titanate-quartz composite microspheres were synthesized via a sol-gel route, and polyethylene glycol was used to reduce ZnTiO 3 crystal aggregation and to promote the photocatalytic activity of the ZnTiO 3 (n)-SiO 2 composites. The crystallite size of ZnTiO 3 was found to decrease from 37.8 nm (ZnTiO 3 (0)-SiO 2 ) to 27.2 nm (ZnTiO 3 (2.5)-SiO 2 ) with increasing polyethylene glycol amount. Many free fine ZnTiO 3 particles were obtained in the composites after the removal of polyethylene glycol during calcination . The bandgap energies of ZnTiO 3 (0)-SiO 2 , ZnTiO 3 (0.5)-SiO 2 , ZnTiO 3 (1.5)-SiO 2 and ZnTiO 3 (2.5)-SiO 2 were measured as 3.49, 3.71, 3.89 and 3.54 eV, respectively. Both the pore volumes and the surface areas of ZnTiO 3 (0.5)-SiO 2 and ZnTiO 3 (1.5)-SiO 2 were found to be enlarged compared to those of ZnTiO 3 (0)-SiO 2 . Polyethylene glycol can significantly enhance the photocatalytic activity of ZnTiO 3 (n)-SiO 2 composites. In terms of hydroxyl radical production, the composites follow the sequence ZnTiO 3 (1.5)-SiO 2 , ZnTiO 3 (0.5)-SiO 2 , ZnTiO 3 (2.5)-SiO 2 and ZnTiO 3 (0)-SiO 2 . The RBR X–3B degradation rate constants for ZnTiO 3 (1.5)-SiO 2 , ZnTiO 3 (0.5)-SiO 2 and ZnTiO 3 (0)-SiO 2 were calculated as 0.02474, 0.02201 and 0.01777 min −1 , respectively. A total of 89.5% of RBR X–3B molecules were degraded on ZnTiO 3 (1.5)-SiO 2 after 80 min of reaction, leading to the decomposition of major organic groups in the dye.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
HELVETICA CHIMICA ACTA
·
2022
·Vol. 105
·期 6
·e202200017
·
IF 2.201
Geng-Wei Liu,Peng-Bin Pan,Xin Zhang,Yuan-Yuan Huang,Peng Liu,Ye-Yan Qin,Yuan-Gen Yao
Zinc titanate (ZnTiO 3 ) has recently been applied in various areas for its unique properties. Herein, through tuning the phase structures of ZnTiO 3 support, we synthesized two different Pd-based catalysts for CO oxidative coupling to DMO and further investigated their structure-activity relationships for the first time. The results indicated that the strong metal-support interaction between the cubic phase ZnTiO 3 and Pd species leads to an enriched Pd electronic density and promotes the bridged CO adsorption. As a result, the as-synthesized catalyst with cubic phase ZnTiO 3 performed a turnover frequency (TOF) of 339.3 min −1 , which was much higher than the hexagonal one (226.3 min −1 ).
研究领域:
催化化学
·
材料科学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2019
·Vol. 45
·期 12
·15768-15771
·
IF 3.45
Jinpeng Lv,Mingzhang Tang,Ronghui Quan,Ziyi Chai
TiO 2 and ZnO based white paints are used worldwide to keep the buildings cool by reflecting solar heat flux. However, the cooling effect and lifetime of such coatings are limited by their band gap and fair reflectivity . Herein, scale-up synthesis of pure hexagonal ZnTiO 3 pigment with an optical band gap of 3.75 eV is developed. It is found that the solar absorptance of the as-grown ZnTiO 3 pigment is only 0.115, which is 0.038 and 0.044 lower in relation to the conventional ZnO and TiO 2 pigments, respectively. Furthermore, the actual outdoor roof cooling test was performed at noon on a sunny day in summer. Interestingly, results found that while the ZnO white paint can decrease the roof temperature from 70.1 °C to 59.8 °C, the ZnTiO 3 paint cools the roof from 70.1 °C to 55.2 °C. Compared to the 10.3 °C roof cooling effect of ZnO paint, the as-fabricated ZnTiO 3 paint has a roof cooling effect as high as 14.9 °C, which is much more attractive for energy saving applications.
研究领域:
材料科学
·
建筑节能
·
太阳反射涂层
·
无机颜料
·
可持续技术
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Fengyan Xie,Guofa Dong,Minghui Wu,Kechen Wu,Chunlei Huang,Shaowu Du,Yafeng Li,Mingdeng Wei,Caiyun Chen
The development of excellent ternary metal oxides as electron transporting layers (ETLs) is highly challenging for perovskite solar cells (PSCs). In this study, ZnTiO 3 (ZTO) nanoparticles are synthesized via a facile sol-gel method, and used as an ETL in PSCs. Furthermore, for the first time, iodine-doped g-C 3 N 4 (ICN) is introduced into ZnTiO 3 -based ETL as additive via a glass-assisted annealing route. Characterizations demonstrate that the ZnTiO 3 -based ETL with the addition of ICN will enhance the PCE, which is attributed to the improved crystalline quality and more favorable energy level alignment. Moreover, the existence of ICN will strengthen the interfacial cohesion between perovskite layer and ETL as well as retard the perovskite crystals from decomposing, leading to the high quality capping light-harvesting layer upon ICN-modified ZnTiO 3 (ZTO-ICN) film. Consequently, a champion device fabricated with ZTO-ICN ETL achieves a maximum PCE of 19.17 % with an open circuit voltage (V oc ) of 1.012 V, a short-circuit current density (J sc ) of 26.32 mA cm −2 and a fill factor (FF) of 0.720 under AM 1.5 G sunlight (100 mW cm −2 ).
研究领域:
材料科学
·
能源技术
·
光伏器件
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF PLANT GROWTH REGULATION
·
2026
·
IF 4.2
Zahedi Seyed Morteza,Fahadi Hoveizeh Narjes,Mohammadi Zeinab,Gholami Rahmatollah,Padervand Mohsen,Dawi Elmuez A.,Anik Touhidur Rahman,Abdelrahman Mostafa
Nanostructures are increasingly used to mitigate various abiotic stresses in recent years. This study investigated the effects of zinc oxide nanostructures, titanium oxide nanostructures (TiO 2 nanostructures) and zeolite (Zeo)-supported ZnTiO 3 nanostructures on ‘Zard’ fig ( Ficus carica L.) seedlings in alleviating the adverse effects of salinity stress. Fig plants were treated with 10 mg L -1 ZnO nanostructures, 15 mg L -1 TiO 2 nanostructures, and 15 mg L -1 Zeo-supported ZnTiO 3 nanostructures under normal conditions and 75 mM NaCl stress. Salinity stress increased Na⁺ levels by 134%, hydrogen peroxide (H 2 O 2 ) concentrations by 45%, and electrolyte leakage percentage (EL%) by 45%, while significantly reducing root growth parameters. In contrast, treatment with Zeo-supported ZnTiO 3 nanostructures significantly increased root fresh weight by 53% and dry weight by 48%, improved the chlorophyll index; soil plant analysis development values by 12%, boosted superoxide dismutase activity by 25% and glutathione peroxidase activity approximately ~ 2.8-fold, while reducing EL% and H₂O₂ concentrations by 22% each, thereby contributing to the enhanced salinity tolerance in salt-stressed fig plants compared with nanostructure-untreated plants. Although ZnO nanostructures and TiO 2 nanostructures also improved some root system architecture (RSA) parameters under salinity stress, the Zeo-supported ZnTiO 3 nanostructures were more effective. The results indicate that the enhanced efficacy composite Zeo-supported ZnTiO₃ nanostructure is more effective than individual treatments in enhancing salinity tolerance in fig seedlings by modulating key physiological, biochemical, and RSA traits. Combined ZnTiO 3 nanostructures with zeolite substrate showed significantly greater effect in improving salt stress tolerance than the separate application of ZnO or TiO 2 nanoparticles, indicating enhanced efficacy benefits in their combined use. Therefore, future studies should focus on scaling up their application under saline field conditions, assessing long-term environmental safety, and exploring their integration with precision agriculture technologies to further improve sustainable fig production under salinity stress.
✓ 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）