Article
Engineering, Environmental
Yi Chen, Shengrui Tong, Weiran Li, Yanping Liu, Fang Tan, Maofa Ge, Xiaofeng Xie, Jing Sun
Summary: This study demonstrated the formation of H2SO4 aerosols (SA(g-H2SO4)) in yields of 10.10-32.64% during the photocatalysis process of SO2 by TiO2 under various relative humidity conditions, with gaseous (OH)-O-center dot and H2O2 identified as the determining factors. The role of the released gaseous (OH)-O-center dot and H2O2 in atmospheric chemistry was proven to be significant, highlighting the impact of photocatalytic materials on secondary pollution.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Xinwei Sun, Kaiqi Xu, Athanasios Chatzitakis, Truls Norby
Summary: This study investigated the use of TiO2 nanorods as a photocatalyst for gas phase photocatalysis in air decontamination. The length and ratio of light/dark intervals as well as the amount of water adsorbed on the photocatalyst were found to have major impacts on the efficiency of ROS production. The study contributes to the development of efficient air cleaning devices.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Alejandra Romero-Moran, Jose L. Sanchez-Salas, Joel Molina-Reyes
Summary: The study established the influence of the crystalline phase and agglomeration degree of TiO2 nanoparticles on photocatalytic hydroxyl radical formation and bacterial inactivation in TiO2/SiO2 composite coatings. A relationship between hydroxyl radicals' formation and charge carrier transfer mechanism between defect levels in SiO2 and TiO2 embedded nanoparticles was established through a simple spectroscopic method. This correlation complements the lack of mechanisms behind the photocatalytic activity in TiO2/SiO2 composites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Materials Science, Multidisciplinary
V Thongpool, A. Phunpueok, S. Jaiyen, T. Rojviroon
Summary: SiO2-TiO2 nanocomposites prepared by the sol-gel method exhibit superior UV absorption capability and specific surface area, leading to enhanced dye degradation through photocatalytic activity. Among the samples, 0.5SiO2-TiO2 demonstrated the highest dye degradation efficiency.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Biochemistry & Molecular Biology
Dawid Malec, Marta Warszynska, Pawel Repetowski, Anton Siomchen, Janusz M. Dabrowski
Summary: Novel hybrid TiO2-based materials were synthesized by adsorbing two different porphyrins on the surface of nanoparticles. The presence of palladium ion in the modifier structure played a key role in strong adsorption and enhanced charge separation. The addition of halogenated metalloporphyrins facilitated the enhancement of overall characteristics and performance under visible light.
Article
Engineering, Environmental
Gregor Zerjav, Krunoslav Zizek, Janez Zavasnik, Albin Pintar
Summary: The investigation of synthesized TiO2 polymorphs reveals that the different catalytic efficiency in the heterogeneous photocatalytic process is determined by the depths of charge carrier traps. Brookite with shallow electron traps extends the lifetime and quantity of generated holes, making it a good photocatalyst. Rutile has too deep electron traps, leading to low generation and high recombination rate of charge carriers. Anatase has a longer lifetime of charge carriers due to its indirect band gap semiconductor nature.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Jun Luo, Yani Liu, Changzheng Fan, Lin Tang, Shuaijun Yang, Milan Liu, Mier Wang, Chengyang Feng, Xilian Ouyang, Lingling Wang, Liang Xu, Jiajia Wang, Ming Yan
Summary: This study uses nitrogen deficiency carbon nitride as a model catalyst and proposes multiple reaction mechanisms for photocatalytic H2O2 production based on experiment and simulation results. It demonstrates that H2O2 can be generated through multiple pathways.
Article
Chemistry, Applied
Xiangyong Meng, Chang Chen, Teng Song, Jingwen Xu, Xiaobin Zhang, Jing Wang, Zhongli Pan, Huien Zhang, Huijuan Zhang
Summary: The use of nano-silica coating and pressurized Ar significantly delayed senescence in sweet cherries by suppressing decay rate, inhibiting the generation and accumulation of ROS, and mitigating lipid peroxidation. Combined treatment maintained higher levels of ascorbic acid and glutathione, enhancing antioxidase activities to retain cherry quality during cold storage.
Article
Microbiology
Angel L. Alvarez, Kevin P. Dalton, Ines Nicieza, Fabio A. Abade Dos Santos, Pilar de la Pena, Pedro Dominguez, Jose M. Martin-Alonso, Francisco Parra
Summary: Surface contamination plays an important role in the spread of SARS-CoV-2. Personal protective elements and physical barriers, such as masks, gloves, and indoor glass separators, increase safety and have proven effective in preventing contagion. This study explores the virucidal properties of a commercial TiO2-coated photocatalytic glass against a model human coronavirus, showing its potential to inactivate the virus and reduce transmission.
MICROBIOLOGY SPECTRUM
(2022)
Article
Environmental Sciences
Jiangyao Chen, Weikun Zhu, Weina Zhao, Peng Wei, Gu Wang, Yuemeng Ji, Taicheng An
Summary: The photocatalytic ozonation of n-hexane isomers (2-methypentane, 3-methylpentane, and 2,3-dimethylbutane) on Cu2O-CuO/TiO2-foam ceramic was investigated. The study found that 2-methyl-pentane and 3-methylpentane showed higher degradation efficiency and converted to heterocyclic compounds. Optimum conditions and center dot OH demonstrated significant roles in the heterocyclic compound formation. The findings contribute to a comprehensive understanding of the roles of ROS in heterocyclization reactions and provide insights for the elimination of industrial alkanes.
Article
Engineering, Environmental
Saehan Choi, Jeonga Kim, Rafia Tasnim Rahman, Dong Jae Lee, Kimoon Lee, Yoon Sung Nam
Summary: This study presents plastic-free silica-titania-tannin hybrids that enhance the blocking effects of UV-to-blue light while suppressing the generation of reactive oxygen species (ROS). The results demonstrate the promising application of these hybrids in protecting the skin from UV and blue light-induced damage.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Qing-Yu Liu, Hao-Dong Wang, Rui Tang, Quan Cheng, Yong-Jun Yuan
Summary: In this study, rutile titanium dioxide (TiO2) nanoparticles with large specific surface area and abundant oxygen vacancy were designed for photocatalytic nitrogen fixation, showing high photocatalytic performance with the highest ammonia generation rate exceeding 6.5 times that of P25. This research provides a simple and facile method to prepare highly reactive TiO2 photocatalysts for enhanced photocatalytic nitrogen fixation performance.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Alexander Gorbunov, Alexander Bardin, Semyon Ilyushonok, Jacob Kovach, Artem Petrenko, Nikolai Sukhodolov, Konstantin Krasnov, Nikolai Krasnov, Ivan Zorin, Alexander Obornev, Vladimir Babakov, Andrey Radilov, Ekaterina Podolskaya
Summary: Metabolic conversion of drugs to chemically reactive products, known as bioactivation, is considered important in adverse drug reactions. UV/TiO2 photocatalytic oxidation (UV/TiO2-PCO) can be used for rapid screening of candidate drugs for reactive metabolite formation. A novel 96-well on target UV/TiO2-photocatalytic microreactor setup (PC mu R96) was developed and evaluated, allowing for drug metabolism simulation and sample preparation directly on a MALDI target. Amodiaquine oxidation products and their protein adducts were obtained and identified using PC mu R96.
MICROCHEMICAL JOURNAL
(2022)
Review
Biochemistry & Molecular Biology
Yerzhigit Tulebekov, Zhandos Orazov, Bagdat Satybaldiyev, Daniel D. Snow, Raphael Schneider, Bolat Uralbekov
Summary: There is currently no consensus on the reaction mechanisms for photocatalytic oxidation of airborne aromatic compounds like toluene. TiO2 or TiO2-based catalysts under UV/VIS illumination are commonly considered for removing these pollutants. The formation of intermediates and the deactivation of the catalyst during the oxidation process are discussed, highlighting the hazardous intermediates such as benzene and formaldehyde and the adsorbed intermediates leading to catalyst deactivation.
Article
Chemistry, Physical
Umberto Belle, Daniela Spini, Barbara Del Curto, MariaPia Pedeferri, Maria Vittoria Diamanti
Summary: The environmental impact of industrial technologies and related remediation methods is a significant research area. In the development of materials for wastewater treatment or air purification, the use of hazardous reactants often diminishes the overall positive contribution to the environment. This study presents the synthesis of stable titanium dioxide (TiO2) sols using an environmentally friendly method. The sol was deposited on glass and evaluated for wastewater purification ability by photocatalytic degradation of organic dyes. The results showed high efficiency and reusability, with degradation rates exceeding 85% for Rhodamine B and 100% for Methylene Blue.
Article
Chemistry, Multidisciplinary
Ge Yin, Masami Nishikawa, Yoshio Nosaka, Nagarajan Srinivasan, Daiki Atarashi, Etsuo Sakai, Masahiro Miyauchi
Article
Chemistry, Physical
Jie Zhang, Yoshio Nosaka
APPLIED CATALYSIS B-ENVIRONMENTAL
(2015)
Article
Electrochemistry
Yukihiro Nakabayashi, Masami Nishikawa, Yoshio Nosaka
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2016)
Article
Chemistry, Physical
Masami Nishikawa, Masayuki Fukuda, Yukihiro Nakabayashi, Nobuo Saito, Nobuhiro Ogawa, Tomohiko Nakajima, Kentaro Shinoda, Tetsuo Tsuchiya, Yoshio Nosaka
APPLIED SURFACE SCIENCE
(2016)
Editorial Material
Chemistry, Physical
Yoshio Nosaka, Atsuko Y. Nosaka
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2016)
Editorial Material
Chemistry, Physical
Yoshio Nosaka, Atsuko Nosaka
ACS ENERGY LETTERS
(2016)
Article
Engineering, Electrical & Electronic
Masami Nishikawa, Soichiro Yuto, Takahiro Hasegawa, Wataru Shiroishi, Hou Honghao, Yukihiro Nakabayashi, Yoshio Nosaka, Nobuo Saito
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2017)
Article
Chemistry, Physical
Yoshio Nosaka, Atsuko Y. Nosaka
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Editorial Material
Chemistry, Physical
Yoshio Nosaka, Atsuko Y. Nosaka
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Editorial Material
Chemistry, Physical
Yoshio Nosaka, Atsuko Y. Nosaka
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Chemistry, Physical
Yutaka Kuwabara, Masahiro Kitazawa, Atsuko Y. Nosaka, Yoshio Nosaka
Summary: The study investigated the spin dynamics of organic radicals generated by (OH)-O· radical using TR-ESR method. Analysis of the ESR signals of various radicals and evaluation of their characteristics were conducted, along with discussions on laser repetition frequency effects, pH dependence, and chemically induced dynamic electron polarization mechanism.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Review
Chemistry, Physical
Yoshio Nosaka
Summary: This article provides an overview of photocatalytic water oxidation over titanium dioxide (TiO2), focusing on the molecular mechanisms of oxygen evolution reaction (OER) at the TiO2 surface. Experimental approaches using ESR, NMR, STM, and FTIR spectroscopy are described, along with theoretical studies using density functional theory (DFT). The importance of rutile TiO2 and its (011) surface in the OER is highlighted.
Article
Chemistry, Physical
Takashi Kukisawa, Yutaka Kuwabara, Atsuko Y. Nosaka, Yoshio Nosaka
Summary: This study investigates the reactions between OH radicals and perfluoroalkyl sulfonic acids and carboxylic acids using electron paramagnetic resonance (EPR) spectroscopy. Three EPR methods were applied to detect and analyze the intermediate radicals, and the degradation mechanism of perfluoro acids was discussed based on the detected radicals.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Review
Chemistry, Multidisciplinary
Yoshio Nosaka, Atsuko Y. Nosaka
Article
Chemistry, Physical
Yoshio Nosaka, Atsuko Y. Nosaka
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)