Article
Engineering, Environmental
Yadav Sneha, Jijoe Samuel Prabagar, Thinley Tenzin, Behzad Shahmoradi, Kitirote Wantala, Sami Rtimi, Afshin Maleki, Diganta B. Das, Harikaranahalli Puttaiah Shivaraju
Summary: This study synthesized AgBiS2 nanorod-shaped material with visible-light absorption and used it for photocatalytic degradation of amoxicillin. The potential pathways and generated intermediates during the degradation process were investigated, and the material exhibited antibacterial and antibiofilm activity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Ariel Kaminski, Christine Edwards, Ewelina Chrapusta-Srebrny, Linda A. Lawton
Summary: The study demonstrates that UV-A/TiO2 photocatalysis is effective in removing toxic substances such as ANTX-a and cyanobacterial cells, generating non-toxic decomposition products.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Devagi Kanakaraju, Muhamad Akif Aizuddin Jasni, Andrea Pace, Muhamad Hazim Ya
Summary: The Cu/TiO2/FA composite was optimized for the removal of the model dye pollutant methyl orange under visible light irradiation using response surface methodology and Box-Behnken experimental design. The study considered three independent variables and achieved a 99.91% removal rate under the optimal operating conditions. The results support the hypothesis of a combined and synergic adsorption-photocatalytic degradation process for pollutant removal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Zhen Xie, Bingxian Chu, Mingkun Wu, Yumin Zhou, Guotong Yi, Bin Li, Xuetang Xu, Lihui Dong, Zhengjun Chen
Summary: In this study, Sn-doped titanium dioxide was synthesized by sol-hydrothermal method, and Cu2O and Cu were deposited on its surface by photochemical reduction method to prepare a composite photocatalyst Cu2O/Cu/T60S1. The introduction of Cu2O and Cu significantly improved the photocatalytic activity of T60S1 in the degradation of organic pesticides and TC-HCl under visible light.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Green & Sustainable Science & Technology
Miguel Diaz-Sanchez, Roxana Nicoleta Murgu, Diana Diaz-Garcia, Jose M. Mendez-Arriaga, Sanjiv Prashar, Bela Urban, Jiri Pinkas, Martin Lamac, Michal Horacek, Santiago Gomez-Ruiz
Summary: This study synthesized titanium dioxide nanomaterials with improved catalytic and photocatalytic properties through co-doping with copper and fluorine. These nanomaterials showed effective degradation of industrial and emerging contaminants, as well as activity in coupling reactions and energy-related photocatalytic processes, making them potentially suitable for cleaner energy generation.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Article
Engineering, Environmental
Xueying Cheng, Renquan Guan, Yunning Chen, Yudan Qian, Qingkun Shang, Yingnan Sun
Summary: In this study, the adsorption and photocatalytic degradation of oxytetracycline (OTC) were investigated using different metal-doped TiO2 nanocatalysts (M-TiO2, M = Fe, Co, Ni, Cr). The effects of different metal dopants on the adsorption and degradation abilities of TiO2 were studied. The photocatalytic performance of Fe-TiO2 was found to be excellent due to the synergy between the separation ability of photogenerated carriers and the adsorption ability of pollutants.
CHEMICAL ENGINEERING JOURNAL
(2023)
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
Chemistry, Physical
Devagi Kanakaraju, Mohamad Azim Bin Abdullah, Lim Ying Chin
Summary: The successful synthesis of the TiO2/PKSAC/Fe3O4 composite material showed high removal efficiency for mixed heavy metal pollutants, even in the presence of coexisting ions, with good regenerative stability. This composite material can be effectively used for heavy metal removal in wastewater.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Environmental Sciences
J. M. Sanchez-Silva, A. Aguilar-Aguilar, G. J. Labrada-Delgado, E. G. Villabona-Leal, H. J. Ojeda-Galvan, J. L. Sanchez-Garcia, H. Collins-Martinez, M. Lopez-Ramon, R. Ocampo-Perez
Summary: This study presents a one-step synthesis method for preparing hydrochar doped with TiO2 for the degradation of crystal violet using UV and visible radiation. The synthesis was carried out using Byrsonima crassifolia stones as precursors and TiO2 particles. The photocatalyst was characterized and the degradation of crystal violet was investigated. The results showed that the HC-TiO2 composite had good dispersion of TiO2 and exhibited enhanced photocatalyst activation with visible radiation. The degradation percentages were higher with UV radiation compared to visible radiation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Shweta Manchwari, Jaya Khatter, R. P. Chauhan
Summary: This study focuses on the synthesis of TiO2/CdS nanocomposites with different concentrations of precursors and their characterization using various techniques. The results show that TiO2/CdS nanocomposites exhibit excellent photocatalytic performance in the visible range compared to pure TiO2, and they have better degradation efficiency for methylene blue dye compared to rhodamine B dye. The optimum photocatalytic performance is achieved with a 1:1 M ratio of cadmium and sulphur precursors.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Review
Chemistry, Physical
Nina Bono, Federica Ponti, Carlo Punta, Gabriele Candiani
Summary: In response to the COVID-19 pandemic, UV and TiO2-based PCO technologies are widely utilized to disinfect indoor spaces, showing effective bactericidal and virucidal effects by synergistically inactivating microorganisms. Fine tuning of parameters such as UV wavelength and dose is crucial for enhancing the effectiveness of these technologies in mitigating the spread of airborne pathogens.
Review
Engineering, Environmental
Xueqi Li, Hongyan Wei, Tiehong Song, Hai Lu, Xiaoyan Wang
Summary: This article reviews the preparation methods, performance evaluation, and applications of modified TiO2 photocatalysts. It discusses the effects and mechanisms of modified TiO2 photocatalysts on degrading organic pollutants in water bodies, as well as the influencing factors. The article summarizes the achievements, advantages, existing problems, challenges, and future prospects in this field.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Composites
Qinggang Fan, Tao Wang, Wei Fan, Lin Xu
Summary: Tubular Au/TiO2/SiO2 ternary nanocomposite with high-temperature ablation and noble metal deposition was successfully fabricated. SiO2 deposition inhibits the growth of TiO2 grain size, and the tubular structure effectively improves the utilization of visible-light. Au nanoparticles absorb visible-light, promote the formation of photogeneration-hole pairs, and act as an electron acceptor to delay the recombination rate of photogeneration electron-hole pairs, thereby improving the photocatalytic activity. Moreover, the composite gel of polyvinyl alcohol/polyvinylpyrrolidone (PVA/PVP) used for loading and immobilizing TiO2-based catalytic materials exhibits good photocatalytic activity and recyclability.
COMPOSITES COMMUNICATIONS
(2022)
Article
Environmental Sciences
Sohel Das, Vineeta Singh, Subhankar Paul
Summary: A conjugate of nano-graphene oxide (GO) and titanium dioxide nanoparticle (nTiO(2)) was proposed for the photocatalytic degradation of toxic azo dyes. The optimized weight ratio of 1:5 between GO and nTiO(2) showed the highest degradation efficiency. The nanoconjugate exhibited high degradation efficiency for Congo red (CR) and Methylene blue (MB), and the photocatalyst could be reused for multiple cycles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Miguel Diaz-Sanchez, Patricia Renones, Irene Mena-Palomo, Eduardo Lopez-Collazo, Fernando Fresno, Freddy E. Oropeza, Sanjiv Prashar, Victor A. de la Pena O'Shea, Santiago Gomez-Ruiz
Summary: The study focuses on synthesizing ultrareactive F-doped titanium dioxide nanoparticles using ionic liquid assistance for high photocatalytic activity. These materials exhibit excellent performance in photocatalytic and catalytic processes, with high surface area and activity.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Chemistry, Physical
Chien-Te Hsieh, Siyong Gu, Yasser Ashraf Gandomi, Chun-Chieh Fu, Po-Yu Sung, Ruey-Shin Juang, Cheng-Cheung Chen
Summary: This study aims to design and synthesize antiviral nanomaterials to inhibit the development of the coronavirus through interaction with the virus. The materials prepared in this study demonstrated superior performance in virus inhibition, as shown through unique preparation techniques and biocompatibility testing. Additionally, the addition of specific substances enhanced the adsorption and inhibition of the materials on the virus surface.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Editorial Material
Environmental Sciences
Hai Nguyen Tran, Jean-Claude Bollinger, Eder C. Lima, Ruey-Shin Juang
Summary: Two flaws in concepts related to the Radke-Prausnitz model and the Langmuir constant unit were identified and corrected in the paper. The nonlinear form of the Radke-Prausnitz model and the misconception about the unit of the Langmuir constant were thoroughly discussed to avoid unexpected mistakes in adsorption studies.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Chemical
Mai Lien Tran, Thi Tuong Van Tran, Ruey-Shin Juang, Chi Hieu Nguyen
Summary: In this study, chitosan (CS) and graphene oxide (GO) were combined to synthesize CS/GO composites with different GO contents. The combination of CS and GO not only improved the surface area by reducing agglomeration of GO sheets, but also significantly enhanced the adsorption capacity of cationic dye on CS. The Langmuir adsorption capacity of methylene blue (MB) reached 259.5 mg/g at pH 8 and 30 degrees C for the CS/GO12 material. The composite showed good adsorption-regeneration performance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Green & Sustainable Science & Technology
Cheng-Wei Lin, Hai Nguyen Tran, Ruey-Shin Juang
Summary: This study investigated the techno-economic analysis for wastewater reclamation in a midstream petrochemical factory in Taiwan. Caprolactam is the main product of this factory. Different treatment methods involving membrane-based processes were proposed to reclaim and recycle wastewater for cooling water replenishment. The economic analysis showed that the combination of ultrafiltration and reverse osmosis (Scheme 3) was the best choice.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Nanoscience & Nanotechnology
Yu-Sheng Hsiao, Edgar Daniel Quinones, Shih-Chieh Yen, Jiashing Yu, Ji-Tseng Fang, Peilin Chen, Ruey-Shin Juang
Summary: Electric cell-substrate impedance sensing (ECIS) is an innovative approach for the label-free and real-time detection of cell morphology, growth, and apoptosis. In this study, poly(3,4-ethylenedioxythiophene)-poly-(styrenesulfonate) (PEDOT:PSS) conducting polymer (CP)-based bioelectrodes were developed for the simultaneous drug release and real-time biosensing of cancer cell viability. This device can reliably monitor impedance signal changes correlated with cell viability while exhibiting excellent properties for both drug encapsulation and on-demand release.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Ruey-Shin Juang, Chien-Te Hsieh, Chia-Min Liu, Ting-An Lin, Yasser Ashraf Gandomi
Summary: We developed an electrochemical biosensor using reduced graphene oxide (rGO) incorporated onto a conductive polymer poly(3,4-ethoxylenedioxythiophene) (PEDOT) and decorated with molybdenum di-sulfide (MoS2) nanoparticles for the detection of parathyroid hormone (PTH). The sensitivity of the sensors was 0.0011 (mu A center dot mL)/pg with a detection limit of 1.457 pg/mL. The sensors also showed high selectivity towards PTH with the existence of interfering substances diluted to different concentrations.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Review
Engineering, Environmental
Hai Nguyen Tran, Jean-Claude Bollinger, Stefano Salvestrini, Khim Hoong Chu, Ruey-Shin Juang
Summary: The Radke-Prausnitz model, a three-parameter model belonging to the Langmuir-Freundlich-type equation, is analyzed in this study to promote its proper application in adsorption research. The correct expression, citation, and units of its parameters are provided. The model has important implications for understanding adsorption processes.
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2023)
Article
Engineering, Chemical
Chi Hieu Nguyen, Thi Tuong Van Tran, Mai Lien Tran, Ruey-Shin Juang
Summary: Ag-doped TiO2 nanomaterials were prepared using a one-step sol-gel technique. The combination of Ag with TiO2 enhanced the lifetime of photogenerated electron-hole pairs and widened the photocatalytic activity in the visible light region, leading to improved photocatalytic activity.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Biochemistry & Molecular Biology
Mai Lien Tran, Chi Hieu Nguyen, Kuan-Yan Chu, Ruey-Shin Juang
Summary: This study experimentally confirmed the absorption of carbon dioxide (CO2) from CO2-N2 gas mixtures using water and monoethanolamine (MEA) solution in polypropylene (PP) hollow-fiber membrane contactors. Gas flow occurred inside the module while the absorbent liquid flowed counter-currently outside the shell. Various gas- and liquid-phase velocities as well as MEA concentrations were tested, and the effect of pressure difference between the gas and liquid phases on CO2 absorption was investigated. A simplified mass balance model incorporating the non-wetting mode and overall mass-transfer coefficient was proposed to predict the effective length of the fiber for CO2 absorption. The model also emphasized the significance of membrane wetting when using high concentrations of MEA in the chemical absorption process.
Article
Nanoscience & Nanotechnology
Ndumiso Vukile Mdlovu, Ruey-Shin Juang, Meng-Tzu Weng, You-Sheng Lin, Kuen-Song Lin
Summary: In this study, magnetic nanospheres loaded with doxorubicin were synthesized and evaluated for their therapeutic effects in mice. The results showed that these nanospheres exhibited significant growth inhibition of tumors, indicating their potential for cancer drug delivery.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Ruey-Shin Juang, Chien -Te Hsieh, Ting -An Lin, Yu -Chia Shao, Yasser Ashraf Gandomi
Summary: In this study, an efficient electrochemical sensor using SPCE modified by rGO-PDDA composites was developed for the detection of acetaminophen with high sensitivity and excellent selectivity. The sensor exhibited a wide concentration range, an ultralow detection limit, and successfully detected acetaminophen in human urine samples.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Jaysiva Ganesamurthi, Xiang-Ren Chen, Ruey-Shin Juang, Siang -Yu Wei, Da -Yuan Lin
Summary: In this study, a cobalt germanium oxide-graphitic carbon nitride nanocomposite was developed for the electrochemical detection of ornidazole. The nanocomposite exhibited superior selectivity and high sensitivity towards ornidazole, and demonstrated good repeatability and stability in the analysis of real samples.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Kuen-Song Lin, Ndumiso Vukile Mdlovu, Ruey-Shin Juang, Mau-Tsu Tang
Summary: In Taiwan, the excessive emissions of pollutant gases from over 14 million motorcycles contribute significantly to air pollution in urban areas. In this study, the fine structures and oxidation states of Pt/Pd/Rh/Ce species in washcoat catalysts of motorcycle catalytic converters were investigated. The results showed that using Pt/Rh/Pd/Ce species on ceria/alumina washcoat effectively controlled the emissions of HCs pollutants through CO exclusion. The presence of an oxygen-rich environment facilitated the oxidation of Rh and Pd species, while the oxidation of Pt species was relatively more difficult. The transition metal in the washcoat catalysts was found to be consistent with the La-O distances at approximately 2.49 angstrom.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)