Article
Chemistry, Multidisciplinary
Su Jin Kim, Eun Mi Kim, Hee Kyung Jeon, Shital Bhaskar Kale, Jeong Yeon Choi, Jin Hyeok Kim
Summary: In this study, a TiO2-alumina photocatalyst was manufactured and tested for the photolysis and conversion of acetaldehyde. The results showed that decreasing the flow rate, increasing the moisture level, and decreasing the ultraviolet wavelength increased the conversion rate of acetaldehyde. Among the heat-treatment temperatures used, the catalyst treated at 650 degrees C had the highest conversion rate. This newly manufactured TiO2-alumina photocatalyst has potential applications in air purification, and the surface treatment method demonstrated in this study can be used to fabricate other environmentally friendly materials in the future.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Multidisciplinary
Sipei Zhang, Ying Xu, Wen Zhang, Peng Cao
Summary: Cu and Y co-doped TiO2 nanoparticles were prepared using an acid-catalytic sol-gel process, resulting in a single anatase phase with reduced crystallite size. SEM observations showed uniform nanospheres being synthesized under the proposed conditions. XPS results demonstrated the presence of Cu+ and Y3+ ions. The photoactivity of the co-doped TiO2 was improved due to effective separation of electron-hole pairs, increased formation of active radicals, and increased surface area.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Zannatul Mumtarin Moushumy, Mohammad Jobaer Hassan, Mohebul Ahsan, Md Mahmudul Hasan, Md Nizam Uddin, Yuki Nagao, Mohammad A. Hasnat
Summary: A series of Ce, Bi, and N co-doped TiO2 photocatalysts were prepared to remove Chlorazol yellow (CY) dye molecules from water. The 5 wt% (Ce-Bi-N) co-doped TiO2 composite catalyst showed the best catalytic activity under sunlight irradiation. The catalyst achieved 97% degradation of CY molecules within 30 minutes and followed second-order kinetics. The developed catalyst can destruct CY molecules with a maximum rate of 23.1 mu g CY g(-1) min(-1) and the photodegradation kinetics depends on the concentration of CY.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Sohrab Nasiri, Zahra Rahimirad, Mohammad Yousefi Dehaghi, Marzieh Rabiei, Reza Ebrahimi-Kahrizsangi, Arvydas Palevicius, Giedrius Janusas
Summary: Nanocomposites of TiO2-Ag-Ce with different percentages of Ag were prepared and characterized. The nanocomposite with 5%Ag showed the best catalytic performance for methylene blue.
Article
Engineering, Electrical & Electronic
Mahubedu Khutso Ntobeng, Patrick Ehi Imoisili, Tien-Chien Jen
Summary: The vanadium sensitized silver titanium mixed metal oxides photocatalyst nanocomposite prepared through a sol-gel, hydrothermal route exhibited a large surface area and enhanced visible light absorption capacity. The photocatalyst showed tremendous photocatalytic abilities under visible light irradiation, selectively removing organic pollutants from surface water as demonstrated by gas chromatography-mass spectrometry analysis.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Chung-Ming Lu, Raju Kumar Sharma, Chin-Wen Wang, Nalonda Chatterjee, Wen-Chien Lee, Chien-Yen Chen
Summary: This study prepared F and I-doped TiO2 nanoparticle photocatalysts using the sol-gel method and tested their degradation efficiency on methylene-blue under simulated sunlight and LED visible-light. The particle size of the doped nanoparticles varied at different concentrations, and the F-doped TiO2 nanoparticles showed a higher removal efficiency at higher concentration.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
Yanting Lyu, Taka-Aki Asoh, Hiroshi Uyama
Summary: The hierarchically porous TiO2 monolith prepared using a cellulose template showed potential for water remediation, with controllable pore structures that could be adjusted by changing fabrication parameters. Its photocatalytic performance in degrading methylene blue in a flow system was evaluated.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Engineering, Environmental
Xian Liu, Chengxiang Xu, Lei Zhu, Shiwei Xie, Shihao Shen, Xun Wang
Summary: Through simulating the shell-pearl structure, a unique catalyst was synthesized which achieved 92.54% degradation efficiency of salicylic acid under UV irradiation. This high degradation efficiency indicates promising applications of the pearl type catalyst in environmental purification and human health.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Chang Soo Lee, Hoseok Jang, Jeonghwan Kim, Jong Hak Kim
Summary: In this study, a comb copolymer was synthesized and used as a template to fabricate hierarchically porous TiO2 nanoisland membranes with superior interconnectivity and high water permeability. The resulting membranes exhibited excellent photocatalytic ability and significantly reduced organic fouling. The self-assembled microphase-separated structure and high molecular weight of the comb copolymer contributed to the improved performance compared to traditional Pluronic block copolymers.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Ceramics
Jing Wang, Zhinuo Wang, Dongyang Zhao, Yao Liang, Hualin Wang, Nan Wang, Weiwei Jiang, Shimin Liu, Chaoqian Liu, Wanyu Ding, Zhihua Zhang
Summary: Based on the results, co-doping of Sn/Fe in TiO2 nanoparticles inhibited the crystallization transformation and decreased the energy band gap. The abnormal grain growth of the particles was observed due to the influence of calcination temperature and dopant. The co-doped nanoparticles with 0.6 at.% Sn/0.2 at.% Fe and 1.0 at.% Sn/1.0 at.% Fe showed better photocatalytic performance under visible light irradiation, while the nanoparticles co-doped with 0.2 at.% Sn and 0.6 at.% Fe and calcined at 650 degrees C exhibited the highest photocatalytic performance under UV light irradiation.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Anshu Kumar Singh, Pramod Kumar Vishwakarma, Sumit Kumar Pandey, Raghvendra Pratap, Rajiv Giri, Anchal Srivastava
Summary: Organic pollutants from the textile industries are polluting water resources and posing a threat to aquatic ecosystems. High-performance photocatalysts that can be activated by visible light are needed. TiO2 has been widely studied as a photocatalyst, but its limitations have led researchers to explore modifications. In this study, MWCNTs were used to modify TiO2 and compared for their ability to degrade methylene blue dye under visible light irradiation. The in-situ CNTs-TiO2 nanocomposite showed higher degradation efficiency and stability due to strong chemical interactions with MWCNTs.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Carla Calabrese, Amelie Maertens, Alessandra Piras, Carmela Aprile, Leonarda Francesca Liotta
Summary: TiO2 nanomaterials were synthesized through a sol-gel method using titanium butoxide as a precursor, Pluronic F127 as a template, toluene as a swelling agent, and acidic water or ethanol as reaction solvents. The synthesis medium influenced the phase composition of the solids, with ethanol promoting dispersed anatase particles and water leading to a rutile phase. The photocatalytic activity of the samples was tested by the photodegradation of Rhodamine B.
Article
Materials Science, Multidisciplinary
Shumaila Islam, Adil Alshoaibi, Hazri Bakhtiar, Kawther Alamer, Javed Mazher, Zakia Hassan Alhashem, Mohammad Rafe Hatshan, Shrouq H. Aleithan
Summary: Due to polluted water remediation, semiconductor nano photocatalysis has been considered as a promising approach to address the issue. However, the slow reaction rates and high electron-hole recombination have hindered their large-scale applications. In this study, heterogeneous nano photocatalysts, such as sol-gel-based mesoporous titania nanoparticles (TNPs) and silica-titania nanocomposite (STNC) supported with CdTe (CdTe/STNC), were synthesized for photocatalytic applications. The CdTe/STNC catalyst exhibited a large surface area and pore size distribution, and demonstrated high photocatalytic activity with methylene blue degradation of 95% after 180 min of ultraviolet radiation.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Materials Science, Ceramics
V. T. Srisuvetha, S. Karthikeyan, P. Sangeetha, E. Glitta Sumangali, Mohd. Shkir, Vasudeva Reddy Minnam Reddy, I. M. Ashraf, Woo Kyoung Kim, T. Sumathi
Summary: Nanostructured composite photocatalysts consisting of MWCNT and cubic MgO were prepared using sol-gel methodology. The composite exhibited effective catalysis for the photodegradation of phenol and congo-red under visible light irradiation. It also showed high PCE and long-term stability when used in a photovoltaic device.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Periyakaruppan Karuppasamy, Nagoorkani Ramzan Nilofar Nisha, Arivalagan Pugazhendhi, Sabariswaran Kandasamy, Sakthivel Pitchaimuthu
Summary: The study focused on preparing semiconducting materials like TiO2 and transition metal-doped TiO2 using a sol-gel method and characterizing them through various analyses. Among them, Zn-doped TiO2 showed the best photocatalytic efficiency in decolouring Methylene blue dye under visible light irradiation. Results indicated that Zn-doped TiO2 had a lower band gap, leading to enhanced dye degradation compared to other catalysts. UV-vis spectra and the decolouration percentage of Methylene blue showed the superior photocatalytic activity of Zn-doped TiO2.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Shengxian Zhao, Chaojie Wang, Yiming Lu, Xin Zhang, Siyu Wu, Hui Mao
Summary: A series of oxazolidinone derivatives were synthesized and compound 3g showed the best inhibitory activity against SARS coronavirus 2 (SARS-CoV-2) 3CLpro. Docking studies revealed that compound 3g formed a hydrogen bond with Glu166 in the active pocket of 3CLpro.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2022)
Article
Biochemical Research Methods
Shuyao Wu, Meijiao Jiang, Hui Mao, Nan Zhao, Dongqing He, Qinan Chen, Daliang Liu, Wei Zhang, Xi-Ming Song
Summary: A simple and sensitive electrochemical cholesterol biosensor based on cerasome and GQDs was developed, offering good conductivity and biocompatibility. The biosensor showed excellent catalytic performance and a low detection limit for cholesterol.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Yahui Li, Shuo Li, Yun Wu, Juan Zhang, YiYi Yang, Hui Mao, Yu Zhang, Xi-ming Song
Summary: The study demonstrates a preferential electron trapping process and surface-bound exciton formation at the BiVO4 surface, which can be mitigated by a facile LSV treatment to enhance PEC performance.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Hui Mao, Jing Chen, Xiaoning Zhang, Na Yu, Yangbin Lu, Fei Zhao
Summary: We report the regio- and stereoselective synthesis of tetrasubstituted alkenes using N-carbamoyl indoles and alkynes via ruthenium(II)-catalyzed C-H alkenylation/directing group migration. The carbamoyl directing group serves as both an auxiliary group and migrating acylation reagent through C-N bond cleavage. This method shows broad substrate scope, high atom and step economy, good functional group tolerance, and mild conditions at room temperature, allowing for the efficient synthesis of structurally diverse tetrasubstituted alkenes.
Article
Cardiac & Cardiovascular Systems
Fangxiao Gong, Jun Jin, Hengjie Li, Hui Mao
Summary: Alpha-lipoic acid has been shown to play a cardioprotective role in attenuating Doxorubicin-induced cardiotoxicity by inhibiting the expression of pyruvate dehydrogenase kinase 4 (PDK4). PDK4 plays a crucial regulatory role in Doxorubicin-induced myocardial injury.
CARDIOVASCULAR TOXICOLOGY
(2022)
Article
Chemistry, Organic
Yuhong Tian, Fengdi Wu, Shiqi Jia, Xiangnan Gong, Hui Mao, Pengfei Wang, Wenling Qin, Hailong Yan
Summary: An organocatalytic asymmetric protocol for constructing tetrasubstituted carbon stereocenters with three heteroatoms is reported. The reaction proceeds via an enantioselective intramolecular cyclization reaction of vinylidene ortho-quinone methide (VQM) with imidates to form pentacyclic heterocycles. The resulting tetrasubstituted carbon center is stable under high temperatures and conditions for further transformations.
Article
Chemistry, Organic
Xinyuan Wang, Jinhang Yu, Mengjiao Xu, Hui Mao, Yueyue Shan, Xin Lv, Liejin Zhou
Summary: A novel [5 + 1] cycloaddition-aromatization method for efficient construction of 1,2,4-benzotriazine derivatives from benzotriazoles and sulfur ylides is reported. This metal-free protocol utilizes cleavage of the N-N single bond for the cycloaddition reaction. The use of inexpensive starting materials, broad substrate scope, mild reaction conditions, and versatile functionalization of the 1,2,4-benzotriazines make this strategy more attractive.
Article
Materials Science, Ceramics
Zhizhen Li, Runze Wu, Enhui Bao, Shouxiu Du, Chunju Xu, Jiang Zhu, Hui Mao, Huiyu Chen
Summary: FeCo2O4 microflowers (MFs) and microparticles (MPs) were prepared at different temperatures using a wet chemical method. The MFs and MPs had large specific surface area and mesopores. The FeCo2O4 MFs delivered a higher specific capacity than the FeCo2O4 MPs. A hybrid supercapacitor (HSC) device was assembled with FeCo2O4 as cathode and activated carbon as anode. The FeCo2O4 MFs//AC HSC showed higher capacity and energy density than the FeCo2O4 MPs//AC HSC. Both HSCs exhibited little capacity decay after 3000 cycles.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Yongteng Qian, Zhiyi Lyu, Qianwen Zhang, Tae Hyeong Lee, Tae Kyu Kang, Minkyun Sohn, Lin Shen, Dong Hwan Kim, Dae Joon Kang
Summary: In this study, flower-shaped MoS2/graphene heterostructures were used as electrode materials on flexible substrates to overcome the limitations of low energy density and poor durability of MoS2. The results showed exceptional capacitance of 853 F g(-1) at 1.0 A g(-1) in three-electrode measurements, and 208 F g(-1) at 0.5 A g(-1) with long-term cyclic durability in asymmetric supercapacitor measurements. Nearly 86.5% of the electrochemical capacitance was retained after 10,000 cycles at 0.5 A g(-1). Moreover, a remarkable energy density of 65 Wh kg(-1) at a power density of 0.33 kW kg(-1) was obtained. The MoS2/Gr heterostructure composites have great potential for the development of advanced energy storage devices.
Article
Chemistry, Organic
Mengjiao Xu, Mengwei You, Yang Su, Boxue Ruan Lu, Ling Liu, Xin Lv, Shoulei Wang, Hui Mao, Liejin Zhou
Summary: In this study, a formal [4 + 1] cycloaddition of o-sulfonamido aldimines and sulfur ylides has been successfully developed. This strategy enabled the synthesis of 2,3-disubstituted indoline derivatives with good yields and high diastereoselectivities, possessing flexible carbonyl and sulfamide groups. Furthermore, this highly efficient cascade reaction also allowed the synthesis of indoles.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Organic
Jinhang Yu, Xinyuan Wang, Mengjiao Xu, Bei Zhang, Zuping Xiong, Hui Mao, Xin Lv, Liejin Zhou
Summary: A novel gold-catalyzed cascade reaction involving cycloisomerization, [2+1] cycloaddition, and [1,3]-sigmatropic rearrangement has been developed for the synthesis of alpha-pyrone derivatives. This strategy allows for the rapid and efficient construction of diverse alpha-pyrone derivatives using readily available starting materials. The proposed mechanism was supported by control experiments.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Retraction
Cardiac & Cardiovascular Systems
Fangxiao Gong, Jun Jin, Hengjie Li, Hui Mao
CARDIOVASCULAR TOXICOLOGY
(2023)
Review
Chemistry, Physical
Yongteng Qian, Fangfang Zhang, Shengxian Zhao, Chaoqun Bian, Hui Mao, Dae Joon Kang, Huan Pang
Summary: Recently, metal-organic framework (MOF)-derived composites have shown promise for energy conversion systems due to their tunable pore size, large surface area, and high catalytic performance. This review summarizes the different synthesis approaches for MOF-derived composites and highlights recent advances in their use for various energy conversion applications. The challenges and future development prospects for MOF-derived composites in the field of energy conversion systems are also discussed.
Review
Chemistry, Multidisciplinary
Lin Shen, Yongteng Qian, Zhiyi Lyu, Dong-Hwan Kim, Dae Joon Kang
Summary: The increasing urgency to address climate change and enhance energy security has led to an exploration of using electrocatalysis for hydrogen production as an alternative to fossil fuels. Among the various electrocatalysts being studied, two-dimensional (2D) metal-organic frameworks (MOFs) have emerged as a promising option due to their unique properties and versatile applications. This review highlights the structural features and advantages of 2D MOFs and their derivatives, summarizes the latest advancements in the synthesis and utilization of these materials for electrocatalytic hydrogen and oxygen evolution reactions, and emphasizes the need for further research in this captivating field of electrocatalysis.
APPLIED SCIENCES-BASEL
(2023)
Article
Pharmacology & Pharmacy
Hui Mao, Chunxia Chu, Xianyue Hu, Yue Yuan
Summary: By using molecular docking and molecular dynamic simulation, researchers have identified potential compounds with anti-novel coronavirus properties, providing valuable insights for drug development.
INDIAN JOURNAL OF PHARMACEUTICAL SCIENCES
(2022)
