Article
Engineering, Environmental
Zhen Jiang, Yongxin Lu, Yan-Yan Song, Zhida Gao
Summary: In this study, a p-Co3O4/n-TiO2 nanopine arrays-based PEC electrode was prepared on carbon cloth (CC) by a one-step hydrothermal method. The resulting CC@Co3O4/TiO2 exhibited excellent photocatalytic performance and high capacitance, and showed superior photodegradation ability under visible light compared to traditional photocatalytic process. This work provides a new route for developing high-performance photocatalysts in the rapid degradation of pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Zengkun Li, Haiyan He, Xuan Wang, Chunhui Shou, Mianji Huang, Shengli Jin, Xin Du
Summary: In this work, a SiO2 @TiO2 composite nanocoating with mechanical robustness, antireflection and photocatalytic self-cleaning properties was successfully fabricated by introducing commercial Degussa P25-type titania nanoparticles (P25) and acid-catalyzed silica sol (ACSS) via a simple dip-coating strategy without any post-treatment. The optimized nanocoating exhibits high transmittance, low reflectivity, good hydrophilicity, high photocatalytic activity, and high mechanical robustness.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Biochemistry & Molecular Biology
Ewoud Cosaert, Cedric Wolfs, Stephanie D. Lambert, Geraldine J. Heynderickx, Dirk Poelman
Summary: The study compared the photocatalytic degradation of ethanol on different stable layers on metallic substrates, showing that sol-gel-based TiO2 layers exhibited better photocatalytic activity compared to polymer TiO2 layers. Furthermore, the preparation methods used require minimal photocatalyst, equipment, and allow for easy upscaling.
Article
Environmental Sciences
Guy Didier Fanou, Mamadou Traore, Benjamin Kouassi Yao, Andrei Kanaev, Khay Chhor
Summary: A new composite photocatalyst was developed by grafting size-selected 5-nm titanium-oxo-alkoxo nanoparticles onto P25-TiO2 nanoparticles and incorporating HAP obtained by co-precipitation of salts. The photocatalytic yield was increased for the composite photocatalysts with the addition of HAP, likely due to a synergy between adsorption and photo-oxidation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Thermodynamics
Miroslava Edelmannova, Maria de los Milagros Ballari, Michal Pribyl, Kamila Koci
Summary: This study aims to explore the efficiency of photocatalytic hydrogen production by formulating a phenomenological model, and it reveals that the mass transfer of hydrogen significantly influences the dynamics of the photoreactor. Additionally, experimental results indicate the critical roles of photocatalyst concentration and mass transfer in further research and optimization of photocatalytic reactors for hydrogen production in the future.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Physical
Elim Albiter, Jose M. Barrera-Andrade, Lina A. Calzada, Jesus Garcia-Valdes, Miguel A. Valenzuela, Elizabeth Rojas-Garcia
Summary: In this study, reduced graphene oxide-TiO2 composites were prepared by synthesizing graphene oxide and in situ photoreduction. The composites exhibited higher photocatalytic activity than TiO2, which can be attributed to the chemical interaction between graphene oxide and TiO2, leading to faster electron transfer and lower charge recombination rates.
Article
Chemistry, Applied
Marianna Bellardita, Guillermo Escolano-Casado, Leonardo Palmisano, Lorenzo Mino
Summary: Aryl aldehydes and acids are important industrial intermediates, but their synthesis often requires high temperatures and harmful solvents and oxidant agents. Heterogeneous photocatalysis using TiO2 P25 as photocatalyst in water provides a promising and environmentally friendly method for the selective oxidation of alcohols to aldehydes and acids. The selectivity of the reaction depends on the stability and adsorption of the alcohol and its products on the photocatalyst surface.
Article
Chemistry, Physical
Hubert Witkowski, Wioletta Jackiewicz-Rek, Janusz Jaroslawski, Karol Chilmon, Artur Szkop
Summary: The application of photocatalytic materials has been extensively studied, and the oxidation of nitric oxide (NO) to form nitrogen dioxide (NO2) during photocatalysis is an important factor. However, ozone (O-3) formation during photocatalytic reactions has also been reported. This study analyzed the formation and oxidation of ozone during the photocatalytic oxidation of NO using commercial photocatalytic powders under ultraviolet irradiation.
Article
Chemistry, Applied
Woori Ko, Byeong Jun Cha, Young Dok Kim, Hyun Ook Seo
Summary: Sub-micrometer sized TiO2 particles were synthesized via sol-gel and thermal annealing, with varying properties and photocatalytic activities depending on annealing temperatures. Among them, 550-TiO2 exhibited the highest photocatalytic activity towards organic pollutants. The sub-micro TiO2 particles showed comparable activity to commercial TiO2 (P25) at high sample loading conditions, indicating their potential as efficient photocatalysts for water depollution.
Article
Chemistry, Applied
Laura Collado, Miguel Garcia-Tecedor, Miguel Gomez-Mendoza, Alejandro H. Pizarro, Freddy E. Oropeza, Marta Liras, Victor A. de la Pena O'Shea
Summary: Among different TiO2 polymorphs, anatase has been more studied than rutile in photocatalytic CO2 reduction. In this work, the catalytic activity of anatase and P25-TiO2 (a mixture of anatase and rutile phases) in gas-phase CO2 photoreduction is evaluated. The interfacial heterojunction between anatase and rutile in P25 leads to a superior photocatalytic activity. The differences in catalytic performance are investigated using various optoelectronic and electrochemical characterization techniques. Our results show that the higher CO2 reduction activity of P25 is attributed to enhanced charge separation at the anatase/rutile interface and more favorable band energy positions for CO2 reaction products.
Article
Green & Sustainable Science & Technology
Jiaqi Pan, Guangsheng Xiao, Jingjing Niu, Yueyue Fu, Jun Cao, Jingjing Wang, Yingying Zheng, Mei Zhu, Chaorong Li
Summary: This study demonstrates the significant performance improvement in photocatalysis, including hydrogen evolution and CO2 selective photoreduction, by synthesizing Co3O4/Ti3+-TiO2/NiO hollow core-shell heterojunction. The synergy of Ti3+/Ov and dual pn junction is the key factor contributing to the enhanced performance.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Materials Science, Ceramics
Lev Matoh, Bostjan Zener, Marin Kovacic, Hrvoje Kusic, Iztok Arcon, Marjetka Levstek, Urska Lavrencic Stangar
Summary: This study explored the effect of different water matrices on the photocatalytic degradation of dissolved pharmaceuticals. The degradation efficiencies in wastewater effluent and water effluent were compared with deionized water. The results showed that even in the presence of other organic molecules, the compounds could still be removed from the water, although at a slower rate. Understanding the effects of different wastewater compositions on photocatalytic reactions can help refine the potential applications of this technology.
CERAMICS INTERNATIONAL
(2023)
Review
Nanoscience & Nanotechnology
Wenhui Yang, Qiying Peng, Hu Yang, Xinyan Li, Jun Cao, Jingjing Wang, Yingying Zheng, Chaorong Li, Jiaqi Pan
Summary: An ultrathin hollow core-shell nano pn junction of Co3O4/CdS was fabricated using a chemical-calcination method. The Co3O4/CdS nano pn junction exhibited significantly enhanced photocatalytic hydrogen evolution and photodegradation compared to Co3O4 and CdS. The enhanced performance was attributed to the higher absorption of Co3O4 and the improved carrier efficiency of the Co3O4/CdS nano pn junction.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Hui Cao, Yumeng Yan, Yuan Wang, Fei-Fei Chen, Yan Yu
Summary: This study utilizes active site and heterojunction engineering to enhance photocatalytic CO2 reduction (PCR). The results show that the g-C3N4 microtube-supported Co3O4 nanoparticle achieves a significantly high turnover number (TON) in PCR, 24-fold higher than that of pure Co3O4 and comparable to state-of-the-art photocatalysts.
Article
Environmental Sciences
Hatice Caglar Yilmaz, Funda Ersoy Atalay, Harun Kaya, Sema Erdemoglu
Summary: A new approach was developed to prepare mesoporous hybrid TiO2/Co3O4 coated on Juglans sporopollenin exine microcapsules (SECs). The hybrid materials exhibited excellent photocatalytic performance under both UV and visible light.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Lai-Guo Wang, Wei Zhang, Yan Chen, Yan-Qiang Cao, Ai-Dong Li, Di Wu
NANOSCALE RESEARCH LETTERS
(2017)
Article
Nanoscience & Nanotechnology
Huiyun Zhang, Ji Wang, Yanqiang Cao, Xinli Guo, Qi Li, Jun Du, Qingyu Xu
Article
Multidisciplinary Sciences
Yan-Qiang Cao, Xi-Rui Zhao, Jun Chen, Wei Zhang, Min Li, Lin Zhu, Xue-Jin Zhang, Di Wu, Ai-Dong Li
SCIENTIFIC REPORTS
(2018)
Review
Materials Science, Multidisciplinary
Chang Fang, Yanqiang Cao, Di Wu, Aidong Li
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2018)
Article
Multidisciplinary Sciences
Min Li, Zhi-Xian Jin, Wei Zhang, Yu-Hang Bai, Yan-Qiang Cao, Wei-Ming Li, Di Wu, Ai-Dong Li
SCIENTIFIC REPORTS
(2019)
Article
Multidisciplinary Sciences
Yan-Qiang Cao, Shan-Shan Wang, Chang Liu, Di Wu, Ai-Dong Li
SCIENTIFIC REPORTS
(2019)
Article
Materials Science, Multidisciplinary
Yanqiang Cao, Shanshan Wang, Chang Liu, Aidong Li
Summary: The synergistic effect of hydroxylated multi-walled carbon nanotubes and ALD ZnS film results in excellent electrochemical performances for the composite material, suitable for use as a lithium-ion battery anode.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Yanqiang Cao, Tiancheng Lai, Furui Teng, Chang Liu, Aidong Li
Summary: A highly stretchable and sensitive strain sensor using Ag NWs/MWCNTs on hair band was proposed in this study, showing excellent sensing performance and stability for monitoring human motions and swallowing actions.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2021)
Article
Physics, Condensed Matter
Rui Tan, Qi Qi, Peng Wang, Yanqiang Cao, Rongrong Si, Maoxiang Wang, Xiaoxiong Wang
Summary: In this study, the electronic structure evolution of Ge1-xSnx alloys was investigated using first-principles simulations, revealing the band reordering, topological phase transition, and topological surface mode of α-Sn.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Nanoscience & Nanotechnology
Tangjie Cheng, Zebin Zhu, Xinxin Wang, Lin Zhu, Aidong Li, Liyong Jiang, Yanqiang Cao
Summary: Metal nanogaps can confine electromagnetic field into extremely small volumes, exhibiting strong surface plasmon resonance effect. However, it is challenging to fabricate large-scale nanogaps with precise control of gap size, limiting the practical applications of metal nanogaps.
Article
Chemistry, Analytical
Xinxin Wang, Lin Zhu, Tangjie Cheng, Jisong Qian, Qing Wang, Qianqian Ding, Aidong Li, Liyong Jiang, Yanqiang Cao
Summary: This paper reported a simple strategy to obtain clean Ag dendrites by high temperature decomposition of organic impurities. Ultra-thin coating via atomic layer deposition (ALD) was used to retain the nanostructure of Ag dendrites at high temperature. SERS activity could be recovered after etching ALD coating, and organic impurities could be effectively removed. This strategy is a promising and non-destructive method to clean the SERS substrates.
Article
Chemistry, Inorganic & Nuclear
Lin Zhu, Geng-Lai Yang, Wen-Juan Ding, Yan-Qiang Cao, Wei-Ming Li, Ai-Dong Li
Summary: This study deeply explores the growth behavior of iridium (Ir) metal formed by atomic layer deposition (ALD) in high aspect ratio nanostructures. It is found that surface hydrophilicity is crucial for the nucleation of ALD Ir. The infiltration depth of ALD Ir in the nanostructures is found to be proportional to the pore diameter and the square root of the Ir precursor pulse time. Additionally, the appropriate O-2 partial pressure should be chosen for ALD Ir in high aspect ratio materials. This research is valuable for surface modification or coating of metal in high aspect ratio nanostructures.
DALTON TRANSACTIONS
(2022)
Review
Materials Science, Multidisciplinary
Yanqiang Cao, Xiangbo Meng, Aidong Li
Summary: Electrification has significant impacts on modern society, but state-of-the-art lithium-ion batteries are not sufficient for future transportation. High-capacity anodes like silicon, SnO2, and lithium metal are under investigation but face challenges such as volume changes. Strategies like atomic layer deposition (ALD) are being explored to address these issues.
ENERGY & ENVIRONMENTAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Chang Liu, Chun-Chen Zhang, Yan-Qiang Cao, Di Wu, Peng Wang, Ai-Dong Li
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Review
Electrochemistry
Qiang Ren, Yan-Qiang Cao, Daniel Arulraj, Chang Liu, Di Wu, Wei-Ming Li, Ai-Dong Li
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
