Article
Nanoscience & Nanotechnology
Chan Zheng, Jian Lin, Xiaoyi Song, Qingbao Gan, Xiaoying Lin
Summary: In this study, a novel microcleaner was designed for efficient degradation of organic pollutants through its photocatalytic ability. The microcleaner, with an open-mouth, hollow, asymmetric structure, showed high efficiency in removing rhodamine B, with a removal rate of 98% in the first 10 minutes. The velocity of the microcleaner can be controlled by adjusting the UV irradiation intensity and H2O2 concentration.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Enrico Lavagna, Sebastian Salassi, Davide Bochicchio, Giulia Rossi
Summary: This study computationally investigates the colloidal aggregation of gold nanoparticles isotropically functionalized by a mixture of charged and hydrophobic ligands, and reveals that anisotropic aggregates with different topologies can be formed by varying the proportion of the two ligands.
Article
Chemistry, Multidisciplinary
Suhail Mubarak, Duraisami Dhamodharan, Hun-Soo Byun, Deepak K. Pattanayak, S. B. Arya
Summary: This study developed an innovative and cost-effective silver-decorated anatase TiO2 nanoparticle, which showed excellent performance in terms of photocurrent density and reduction onset potential for CO2 reduction reaction. This nanoparticle has the potential to be used in photoelectrochemical reduction of CO2 to alleviate global warming and adverse climate change.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Suhail Mubarak, Duraisami Dhamodharan, Hun-Soo Byun, S. B. Arya, Deepak K. Pattanayak
Summary: The necessity to limit the high concentration of CO2 in the atmosphere due to global warming has led to the development of photoelectrochemical CO2 reduction methods. In this study, a cost-effective 3D nanoporous structured TiO2 nanoparticles were fabricated, with the TO600 sample showing the lowest CO2 reduction onset potential under light conditions.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Multidisciplinary
Suhail Mubarak, Duraisami Dhamodharan, Hun-Soo Byun, S. B. Arya, Deepak K. Pattanayak
Summary: In this study, cost-effective and novel 3D nanoporous structured TiO2 nanoparticles were fabricated for photoelectrochemical reduction of CO2. The samples prepared at 600 degrees C exhibited the highest photocurrent density and the lowest CO2 reduction onset potential.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Multidisciplinary
Anna Stepanova, Teddy Tite, Iryna Ivanenko, Monica Enculescu, Cristian Radu, Daniela Cristina Culita, Arpad Mihai Rostas, Aurelian Catalin Galca
Summary: Photocatalysis using TiO2 has shown promising results in degrading harmful pollutants. This study synthesized TiO2 powders via a hydrothermal method and analyzed its morphology and structure using various analysis techniques. The results demonstrated that TiO2 exhibited excellent photocatalytic performance in degrading dyes, with pH affecting the formation of TiO2 phases.
Article
Chemistry, Multidisciplinary
Antonietta Mancuso, Alessandro Gottuso, Francesco Parrino, Rosaria Anna Picca, Vincenzo Venditto, Olga Sacco, Vincenzo Vaiano
Summary: Cu, Fe, and V oxides supported on N-TiO2 were synthesized and their photocatalytic activities in phenol production were tested. Cu/N-TiO2 showed higher activity and yield compared to Fe/N-TiO2 and V/N-TiO2 due to its strong optical absorption and weak interaction with phenol molecules.
Article
Chemistry, Multidisciplinary
Olufemi Olatidoye, Daria Thomas, Bishnu Prasad Bastakoti
Summary: A facile method of synthesizing mesoporous TiO2 thin films using polymeric micelles as a template is reported. The mesoporous TiO2 films showed enhanced photocatalytic activity due to increased surface area and rough surface around the pores. Photocatalytic testing demonstrated the effectiveness of the prepared mesoporous thin films in degrading dyes.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Crystallography
T. L. Soundarya, T. Jayalakshmi, Mabkhoot A. Alsaiari, Mohammed Jalalah, Antonio Abate, Fahad A. Alharthi, Naushad Ahmad, G. Nagaraju
Summary: Titanium dioxide nanoparticles play a crucial role in hydrogen gas evolution and catalytic applications. This study successfully synthesized single-phase anatase TiO2 nanoparticles using an ionothermal method, confirming their catalytic activity and structural properties.
Article
Chemistry, Physical
Ailin Cui, Pengwei Ren, Yang Bai, Hongying Yu, Huimin Meng Resource
Summary: The study investigates the performance of composite Pt/TiO2-CNx catalysts with different TiO2 anatase/rutile phases synthesized by ethylene glycol reduction. Results show that the size of Pt nanoparticles significantly affects HOR activity, and the activity of Pt/TiO2-CNx catalysts is influenced by the TiO2 phase content.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
V. V. Zlobin, V. N. Nevedomskiy, O. V. Almjasheva
Summary: This study focuses on the formation and growth of TiO2 nanoparticles under hydrothermal conditions. TiO2 nanocrystals were synthesized by dehydrating hydrated titanium dioxide at different temperatures, durations, and precipitation methods for the synthesis precursor. Various characteristics of the synthesized nanoparticles were investigated, and mechanisms for the formation of crystalline titanium dioxide and the growth of anatase structured titanium dioxide nanocrystals under hydrothermal conditions were proposed. The size of TiO2 crystallites was mathematically described based on the chosen model of oriented attachment. The study also revealed the superiority of direct precipitation from titanium tetrachloride as the synthesis precursor and the influence of hydrothermal treatment temperature and synthesis duration on the size, morphology, crystallization rate, agglomeration processes, and specific surface area of the TiO2 nanoparticles.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Xiaobing Wang, Yihao Zhang, Yu Cao, Zhi Zheng, Xiaowei Guo, Jiabao Cui, Xiangdong Lou, Yuming Guo, Huijun Liang, Zhansheng Lu, Lin Yang, Hua Zhang, Xiaoming Ma
Summary: The novel tufted nanoneedle embedded localized microsphere (TELM) nanoarchitecture has been proposed and successfully synthesized. The TELM is composed of tufted rutile TiO2 nanoneedles embedded on the localized surface of anatase TiO2 microspheres (TiO2-TELM). The decay lifetime of photogenerated charge carriers (PCCs) in TiO2-TELM is significantly prolonged compared to pure rutile and anatase TiO2, and the TiO2-TELM with 1 wt% Pd loading achieves an ultrahigh H-2 production rate in pure water. Moreover, the photogenerated electrons and holes in TiO2-TELM migrate towards the rutile and anatase phases of TiO2, respectively. This study provides an effective strategy for the rational design and controlled synthesis of nanoarchitectures.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Ximena Jaramillo-Fierro, Ricardo Leon
Summary: The study investigated the ability of TiO2, La/TiO2, Ce/TiO2, and Eu/TiO2 nanoparticles to remove free cyanide from water. The results showed that La/TiO2 had the highest cyanide removal percentage (98%), followed by Ce/TiO2 (92%), Eu/TiO2 (90%), and TiO2 (88%). This suggests that La, Ce, and Eu dopants can improve the properties of TiO2 and enhance its ability to remove cyanide species from aqueous solutions.
Article
Chemistry, Applied
P. Rychtowski, B. Tryba, D. Baranowska, B. Zielinska, H. Nishiguchi, M. Toyoda
Summary: Reduction of TiO2 has been studied under different conditions. The addition of ammonia solution followed by hydrothermal treatment and calcination in Ar resulted in the formation of surface defects such as hole traps and oxygen vacancies in the reduced TiO2. Heat-treatment under hydrogen gas produced the highest amount of reduced Ti3+ centers, leading to improved water splitting and enhanced photocatalytic properties. Hydrogen was found to be a stronger reducing agent than ammonia gas.
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.
