Article
Materials Science, Ceramics
E. Burak Ertus, Cekdar Vakifahmetoglu, Abdullah Oztuerk
Summary: The research found that porous glass embedded with titanium dioxide has a higher efficiency in methylene blue removal, mainly due to its high specific surface area and dispersion of nano-sized anatase TiO2 crystallites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Biochemistry & Molecular Biology
Jose C. Gonzalez-Crisostomo, Rigoberto Lopez-Juarez, Rosario Isidro Yocupicio-Gaxiola, Eric Villanueva, Ethiel Zavala-Flores, Vitalii Petranovskii
Summary: A chabazite-type zeolite was prepared and modified through ion exchange. The modified chabazites showed enhanced photocatalytic activity for dye degradation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Green & Sustainable Science & Technology
Tianyu Yang, Yu Liu, Guangda Xia, Xiaodong Zhu, Yu Zhao
Summary: The utilization of the multilevel pore structure of natural wood for synthesizing titanium dioxide resulted in a material with improved adsorption and photocatalytic properties. Characterization using SEM, TEM, and X-ray diffraction revealed the presence of anatase and rutile phases in the prepared titanium dioxide.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Manh Nhuong Chu, Lan T. H. Nguyen, Mai Xuan Truong, Tra Huong Do, Thi Tu Anh Duong, Loan T. T. Nguyen, Mai An Pham, Thi Kim Ngan Tran, Thi Cam Quyen Ngo, Van Huan Pham
Summary: In this study, Ce3+/Ce4+-doped ZrO2/CuO mixed semiconductor oxide was successfully prepared and showed high photocatalytic activity for the degradation of methylene blue (MB). The doping of Ce3+/Ce4+ in the material increased the photocatalytic activity, by reducing the (e(-)/h(+)) recombination rate and improving charge transfer. The materials were characterized using various techniques.
Article
Chemistry, Physical
Khemchand Dewangan, Dadan Singh, Nilesh Satpute, Ritika Singh, Adhish Jaiswal, Kamlesh Shrivas, Indra Bahadur
Summary: This study reported the adsorption and photodegradation efficiency of alpha-MoO3 microfibers towards methylene blue dye. High-quality alpha-MoO3 microfibers were obtained through a hydrothermal treatment method, and the growth mechanism of the microfibers was explained. The experimental results demonstrated that alpha-MoO3 microfibers exhibited excellent photocatalytic properties for the degradation and removal of organic pollutants in water.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Aleksandra Babyszko, Agnieszka Wanag, Marcin Sadlowski, Ewelina Kusiak-Nejman, Antoni W. W. Morawski
Summary: This paper presents a modification of titanium dioxide with fumed silica and investigates the characteristics and photocatalytic activity of the materials. The results show that the presence of SiO2 effectively inhibits the increase in crystallite size and decrease in specific surface area during calcination. SiO2 also contributes to the increase in specific surface area and the change in band gap energy values. The photocatalytic activity of SiO2/TiO2 photocatalysts is higher compared to the starting TiO2, and it increases with the increase in SiO2 content.
Article
Chemistry, Physical
A. Hernandez-Gordillo, M. Ojeda-Martinez, C. Velaquez-Ordonez, M. L. Ojeda-Martinez
Summary: This study evaluates the photocatalytic activity of titanium(IV) bis(ammonium lactate) dihydroxide (TiBALDH) as a potential alternative to TiO2 nanostructures for degrading methylene blue in water. The results show that even at a low concentration of 0.5 mM, the undiluted titanium precursor exhibits high activity in degrading the dye within seconds. The photocatalytic activity is influenced by concentration, radiation type, and pH, indicating the presence of concentration-dependent photoreactive species, possibly oxoclusters. This approach demonstrates the potential for efficient advanced oxidation processes in homogeneous solutions.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
K. R. Jaliya Manuda, Aashani Tillekaratne, Dilushan R. Jayasundara
Summary: This study investigated the photocatalytic activity of nano titanium dioxide on methylene blue in ethanol. The results showed that the photocatalytic activity of nano titanium dioxide strongly depended on the choice of solvent. In contrast to the photocatalytic degradation of dyes typically observed in aqueous medium, a photoinduced reversible adsorption of methylene blue on nano titanium dioxide in ethanol was reported for the first time.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Chemistry, Physical
Abdulhadi Hamad Al-Marri, Fatma Janene, Ali Moulahi, Amal T. Mogharbel, Eida S. Al-Farraj, Amal M. Al-Mohaimeed, Issam Mjejri
Summary: The composite material of nano-Nb2O5 and reduced graphene oxide (rGO) exhibits excellent photocatalytic performance for the degradation of methylene blue dye under solar radiation. The superior properties of the composite material can be attributed to the good electrical conductivity of rGO and the abundant catalytic active sites, efficient charge transfer, and strong oxidation property of nano-porous Nb2O5.
Article
Materials Science, Multidisciplinary
Ashwini S. Gadge, S. Y. Janbandhu, G. K. Sukhadeve, Rahul Kumar, C. D. Gajbhiye, R. S. Gedam
Summary: This study prepared titanium dioxide (TiO2) nanoparticles through a simple sol-gel process and calcined them at various temperatures to investigate their thermal, physical, morphological, optical, and photocatalytic properties. The synthesized materials' thermal properties were analyzed through TGA and DTA studies, while XRD and Raman analyses confirmed their crystallinity, phase transformation, and crystallite size. Textural parameters were calculated using the BET and BJH methods. Changes in structure and morphology with calcination temperatures were explored through FTIR and SEM analyses, while the EDS pattern confirmed the elemental composition. The HR-TEM study revealed the nanoparticles' average size and spherical shape, and XPS spectra demonstrated their elemental state. UV-vis and PL studies confirmed the increase in particle size with calcination temperatures. The photocatalytic efficiency of the samples was tested, and a sample calcined at 400℃ for 2 h showed an improved degradation efficiency of 94.96% for 10 ppm MB dye.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Sudeshna Sharma, Arundhuti Devi, Krishna Gopal Bhattacharyya
Summary: Nickel doped Titanium dioxide immobilised on Fuller's earth (NiTF) was characterized and tested as a photocatalyst for decolourisation of aqueous Methylene Blue. Results showed that a catalyst loading of 0.1 gL-1 could decolourise a 5 x 10-5 M dye solution by 96.15% under visible light irradiation for 90 min at pH 9.0. Trapping experiments indicated that reactive species·O2- and h+ were the main species degrading the dye photocatalytically. The use of Fuller's earth as a support for Ni-TiO2 demonstrated the potential of metal-semiconductor-clay nanocomposites as cost-effective and efficient photocatalysts.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Environmental Sciences
Sajith N. Veedu, Sheethu Jose, Soumya B. Narendranath, Maliyeckal R. Prathapachandra Kurup, Pradeepan Periyat
Summary: A series of Bi3+-doped ceria nanoparticles were successfully synthesized and showed effective photocatalytic degradation of methylene blue dye under visible light irradiation. Characterization through crystallography, microscopy, and spectroscopy confirmed the effectiveness of doping in the host lattice, along with the mesoporous nature of the nanoparticles. The shift of band gap energy from UV to visible region resulted in the photo degradation of the dye under visible light.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Physics, Applied
Kejun Wu, Pankaj Koinkar, Akihiro Furube
Summary: By combining transition metal dichalcogenide WS2 and gold nanoparticles with titanium dioxide, the WS2/TiO2/Au composite showed enhanced photocatalytic performance under visible light, making it suitable for future photocatalytic applications.
MODERN PHYSICS LETTERS B
(2022)
Article
Environmental Sciences
Veena Sodha, Hardik Koshti, Rama Gaur, Irfan Ahmad, Rajib Bandyopadhyay, Syed Shahabuddin
Summary: The rapid increase in wastewater generation due to industrial expansion poses a risk to human health and the environment. Novel materials and technologies for textile wastewater treatment are being developed. This study presents the photocatalytic degradation of methylene blue using ZSM-5 zeolite-doped polyaniline composites. Different weight ratios of ZSM-5 were used to synthesize the composites, and their photocatalytic performance was assessed.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Nguyen Duc Van, Nguyen Manh Ha, Nguyen Van Dung, Hoang Thi Huyen Ngoc, Phan Van Truong
Summary: A series of plasmonic Ag/Bi2O2CO3 photocatalytic nanocomposites were easily synthesized using Acacia hybrid leaf extract as a silver reduction agent, resulting in spherical Ag nanoparticles on the surface of Bi2O2CO3 nanosheets. The optimized nanocomposite exhibited significantly enhanced photocatalytic activity for methylene blue degradation under visible light due to the surface plasmon resonance effect and heterojunction formation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Wen-Yin Ko, Andre Lammiduk Lubis, Yu-Zhe Liu, Rina Se Sitindaon, Kuan-Jiuh Lin
Summary: This research presents a rechargeable supercapacitor and aqueous zinc-ion battery with improved capacity and cyclability. The MnO2-based electrode with a three-dimensional porous structure shows excellent cycling stability and high storage performance, providing potential for green and low-cost energy storage devices.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Mujahid Mustaqeem, Pi-Tai Chou, Saqib Kamal, Naveed Ahmad, Jia-Yu Lin, Yu-Jung Lu, Xing-Hao Lee, Kung-Hsuan Lin, Kuang-Lieh Lu, Yang-Fang Chen
Summary: Spin optoelectronics is crucial for the future development of spintronics. A new approach based on quantum dots/chiral metal-organic framework heterojunction has been proposed to achieve spin-polarized LEDs at room temperature without using ferromagnetic contacts or magnetic fields. This method provides a general methodology for generating spin optoelectronic devices that have not yet been realized.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wen-Yin Ko, Yu-Ping Wang, Tung-Ching Wu, Wei-Cheng Hsu, Kuan-Jiuh Lin
Summary: In this study, an optimized porous anatase TiO2 one-dimensional nanotube bundle nanomaterial, prepared through a simple hydrothermal process with post calcination treatment, was investigated. The material exhibited excellent electrochemical properties, including a lithium storage capability of 181 mA hr g(-1) at 0.2C rate, a high rate performance of 70 mA hr g(-1) at 20C, an excellent cyclability of 117 mA hr g(-1) with a capacity retention of 93% at 1C after 100 cycles, and 84 mA hr g(-1) at 10C after 1,000 cycles. These properties can be attributed to the anatase crystal phase, one-dimensional nanostructure, and porous framework, which provide a large surface area and efficient electrode/electrolyte contact area, as well as a fast ion/electron diffusion pathway.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2023)
Biographical-Item
Chemistry, Multidisciplinary
Kuan-Jiuh Lin, Hwo-Shuenn Sheu, Biing-Chiau Tzeng
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Ching-Han Mao, Chin-Chien Chung, Wei-Ren Syong, Yu-Chi Yao, Kai-Yuan Hsiao, Ming-Yen Lu, Mario Hofmann, Ya-Ping Hsieh, Yu-Jung Lu, Ta-Jen Yen
Summary: This article presents an all-semimetal plasmonic photodetector consisting of monolayer MoS2, Bi contact electrodes, and Bi plasmonic nanodisks to address the contact resistance and absorption limitations of monolayer TMDCs. The results show a 690% enhancement in photoresponsivity and a detectivity of 6.40 x 1012 Jones, making it the highest reported value for plasmonic TMDC photodetectors.
Article
Chemistry, Multidisciplinary
M. Cristina Diamantini, Carlo A. Trugenberger, Sheng-Zong Chen, Yu-Jung Lu, Chi-Te Liang, Valerii M. Vinokur
Summary: The authors describe a type of superconductivity where the Anderson-Higgs mechanism is replaced by the Deser-Jackiw-Templeton topological mass generation. The corresponding effective field theory must also be replaced by an effective topological gauge theory. The experimental data confirm the Vogel-Fulcher-Tamman behavior of the resistance.
Article
Chemistry, Physical
I-Hung Ho, Ching-Wen Chang, Sheng-Kai Wen, Yu-Jung Lu, Shangjr Gwo, Hyeyoung Ahn
Summary: Titaniumnitride is a refractory material with excellent thermaland mechanical stabilities and optical and plasmonic properties in the visible and near-infrared regions. Alloying aluminum in TiN can change its dielectric properties and tune the epsilon-near-zero wavelength. Understanding the role of Al in the transient optical responses of Ti1-x Al (x) N is crucial for optoelectronic and photothermal applications. This study investigates the broadband transient reflectance of Ti(1-x)Al(x)N films with different Al concentrations and reveals their potential as efficient absorbing layers for photovoltaic cells. Moreover, it provides insights into the carrier dynamics and e-ph coupling processes in TiN and TiAlN.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Ching-Wen Chang, Chiao-Tzu Huang, Jhih-Sheng Wu, Zih-Hao Song, Chih-Hsuan Liao, Quynh T. Dang, Yu-Jung Lu, Ho Wai Howard Lee, Hyeyoung Ahn, Shangjr Gwo
Summary: In this study, ultrathin and scalable TiN epitaxial structures were demonstrated for tunable infrared plasmonics. By controlling the thickness and grating structure parameters of the epitaxial films, frequency-tunable plasmonic metasurfaces were achieved. These materials hold great potential for infrared plasmonic applications such as thermal photovoltaics, photodetectors, and biosensors.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Jing-Wei Yang, Tzu-Yu Peng, Daniel D. A. Clarke, Frank Daniel Bello, Jia-Wern Chen, Hao-Chen Yeh, Wei-Ren Syong, Chi-Te Liang, Ortwin Hess, Yu-Jung Lu
Summary: Researchers have developed a novel system that integrates superconducting wire photon detectors with gap-plasmon resonators, improving the performance of single-photon detectors. The system achieves 98% photon detection efficiency for visible light while preserving polarization insensitivity and other features. These findings open up new opportunities for ultrasensitive single-photon detection in areas like quantum information processing, quantum optics, imaging, and sensing at visible wavelengths.
Article
Nanoscience & Nanotechnology
Jui-Han Fu, Jiacheng Min, Che-Kang Chang, Chien-Chih Tseng, Qingxiao Wang, Hayato Sugisaki, Chenyang Li, Yu-Ming Chang, Ibrahim Alnami, Wei-Ren Syong, Ci Lin, Feier Fang, Lv Zhao, Tzu-Hsuan Lo, Chao-Sung Lai, Wei-Sheng Chiu, Zih-Siang Jian, Wen-Hao Chang, Yu-Jung Lu, Kaimin Shih, Lain-Jong Li, Yi Wan, Yumeng Shi, Vincent Tung
Summary: The large-scale batch growth of single-crystal 2D semiconducting transition metal dichalcogenides (TMDs) is crucial for pushing the limits of semiconductor technology. This study demonstrates that the interaction between TMD grains and the exposed oxygen-aluminium atomic plane in sapphire plays a more dominant role than step-edge docking in controlling the single-crystal epitaxy of these materials. Reconstructing the surfaces of the sapphire substrate to a single type of atomic plane enables the epitaxial growth of TMDs without the aid of step edges.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Wen-Yin Ko, Shin-Chwen Yeh, Yun-Chen Hsu, Hsiao-Wen Chu, Kuan-Jiuh Lin
Summary: This study presents a broadband visible light plasmon-absorber based on a dandelion-like hierarchical metal-semiconductor Au-TiO2 core-shell nanostructure, which exhibits remarkable absorption in the visible spectrum. The AuTNW-dCS based photoelectric immunosensor shows excellent performance in alpha-fetoprotein detection, with a wide linear range, low detection limit, and satisfying selectivity. This work sheds light on the potential use of metal/semiconductor core-shell heterostructures in sensing applications and offers a driving force for developing flexible nanofilms based on plasmonic metal/semiconductor nanohybrids.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yu-Kuan Lin, Chiung-Han Chen, Yen-Yu Wang, Ming-Hsuan Yu, Jing-Wei Yang, I-Chih Ni, Bi-Hsuan Lin, Ivan S. S. Zhidkov, Ernst Z. Z. Kurmaev, Yu-Jung Lu, Chu-Chen Chueh
Summary: In this work, quasi-2D perovskite light-emitting diodes (PeLEDs) with high brightness, reduced trap density, and low-efficiency roll-off are successfully demonstrated by introducing a thin layer of conductive phosphine oxide at the perovskite/electron transport layer interface. The modified quasi-2D pure Cs-based device shows a maximum brightness of > 70,000 cd m(-2) (twice that of the control device), a maximum external quantum efficiency (EQE) of > 10%, and a much lower efficiency roll-off at high bias voltages.
Article
Chemistry, Multidisciplinary
Zhen-Ting Huang, Ting-Wei Chien, Chang-Wei Cheng, Cheng-Ching Li, Kuo-Ping Chen, Shangjr Gwo, Tien-Chang Lu
Summary: Stable electrical modulation of plasmonic nanolasers is achieved on a graphene-insulator-metal platform, where the gate voltage can adjust the lasing thresholds of the ZnO nanowire plasmonic nanolasers, providing high-speed modulation characteristics.
Article
Chemistry, Physical
M. Usman Javed, Jing-Wei Yang, Shweta Kumari, Mujahid Mustaqeem, Tze-Yu Peng, Li Chung Yang, Yu-Jung Lu, Chao-Cheng Kaun
Summary: Transition metal nitrides (TMNs) are promising materials for developing next-generation photonic devices. By tuning their compositions, the plasmonic properties of TMNs can be modulated. Computational and experimental studies show that the overall performance of TMNs can be adjusted by their compositions, and using mixed ternary TMNs can achieve frequency-targeting photonics applications.
APPLIED SURFACE SCIENCE
(2023)