Article
Environmental Sciences
Yasin Orooji, Bahareh Tanhaei, Ali Ayati, Soheil Hamidi Tabrizi, Marzieh Alizadeh, Fatemeh F. Bamoharram, Fatemeh Karimi, Sadegh Salmanpour, Jalal Rouhi, Safoora Afshar, Mika Sillanpaa, Rozhin Darabi, Hassan Karimi-Maleh
Summary: In this study, gold nanoparticles were well-decorated on the surface of TiO2 using HPW as reducing intermediate linkers, thereby enhancing the photocatalytic performance compared to anatase TiO2 and HPW/TiO2. The photocatalytic rate of the prepared nanocomposites increased by 6.5-fold and 4.6-fold, and the reusability study confirmed their high photocatalytic activity after three cycles.
Article
Chemistry, Applied
Ye Eun Kim, Mi Yeon Byun, Kwan-Young Lee, Man Sig Lee
Summary: This study investigated the effect of stabilizing agents on the surface area and porosity of m-TiO2. The results showed that the electron-donating group in the stabilizers could decrease the particle size of m-TiO2 and increase its surface area. Among the stabilizers, m-TiO2(3MP) with the highest pKa value exhibited the most uniform and smallest particle size, leading to the highest photocatalytic activity.
Article
Chemistry, Applied
Na Sun, Jiaojiao Song, Qingmei Tao, Erjie Kan, Long Kuai
Summary: Photocatalysis using metal oxide semiconductors and solar energy is an attractive green method for converting organics. This study successfully achieved high-efficiency mesoporous TiO2 decorated with single atomic Pt, which improved reaction performance by constructing high-density single-atom reaction sites.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Sameer Mohanty, Manisha Sharma, Ajay Kumar, Venkata Krishnan
Summary: Sunlight, as the most abundant and cleanest form of energy, has great potential in photocatalysis. In this study, multi-component interfacial heterostructures were developed and utilized for photocatalytic reactions under natural sunlight, demonstrating remarkable performance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Inorganic & Nuclear
Lijarani Biswal, Bhagyashree Priyadarshini Mishra, Sarmistha Das, Lopamudra Acharya, Susanginee Nayak, Kulamani Parida
Summary: Designing a visible-light-driven semiconductor-based heterojunction with suitable band alignment and well-defined interfacial contact is an effective strategy for solar-to-chemical energy conversion and environmental remediation. MXenes have received tremendous attention due to their abundance, metallic conductivity, and surface termination groups. However, the synthesis of MXene-derived TiO2 nanocomposites with stable framework and high photocatalytic activity under visible-light irradiation remains a challenge.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Applied
Joseph W. Gregory, Yuyan Gong, Yisong Han, Steven Huband, Richard I. Walton, Volker Hessel, Evgeny V. Rebrov
Summary: Au/TiO2 catalytic coatings were developed for photocatalytic applications. Gold nanoparticles with a diameter of 3-5 nm were synthesized using the citrate method and sodium borohydride as a reducing agent. The nanoparticles were characterized by various techniques. The photocatalytic activity of the coatings was studied in the reduction of 4-nitrophenol with green LEDs, and the activity of the gold nanoparticles was preserved in the coatings.
Article
Chemistry, Physical
Menghan Yu, Nan Wang, Kuo Lin, Dongxue Song, Jie Chen, Teng Liang, Jianhui Sun, Kai Pan, Honggang Fu
Summary: A lead-free double perovskite Cs2AgBiBr6 nanocrystal/mesoporous black TiO2 composite was prepared and applied for photocatalytic selective oxidation of benzyl alcohol to benzaldehyde at normal temperature and pressure. The composite exhibited a conversion rate of 75% and selectivity of 99%, surpassing those of single Cs2AgBiBr6 nanocrystals and black TiO2. The formation of a Z-type heterogeneous structure between Cs2AgBiBr6 nanocrystals and black TiO2 effectively promoted the separation and transfer of electrons and holes, leading to excellent photocatalytic activity. Carbon-centered radicals were identified as key intermediates during the catalytic process of benzyl alcohol dehydrogenation. This work provides practical suggestions for the fabrication of benzyl alcohol selective oxidation photocatalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Engineering, Environmental
Elangovan Erusappan, Sivakumar Thiripuranthagan, Ramakrishnan Radhakrishnan, Mani Durai, Sakthivel Kumaravel, Thanigaivel Vembuli, Noel Jacob Kaleekkal
Summary: In this study, mesoporous titanium dioxide photocatalysts were synthesized using different methods and incorporated into PVDF membranes to evaluate their photocatalytic activity. Among the synthesized catalysts, TiO2-S/PVDF showed the highest activity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Zeineb A. Thiehmed, Talal M. Altahtamouni
Summary: In this study, the effect of KBr salt on the growth of TiO2 nanorods was investigated. The addition of KBr with different concentrations controlled the growth of TiO2 nanorods, with KBr molecules suppressing lateral growth and allowing for axial growth. This impacted the morphology and internal surface area of the nanorods.
Article
Polymer Science
Amine Mezni, Mohamed M. Ibrahim, Nesrine Ben Saber, Mohammed Alsawat, Tushar Kumeria, Tariq Altalhi
Summary: The modified solvothermal reaction in this study successfully produced Au@TiO2/α-Fe2O3 nanocomposite with high crystallinity and nanoring-like structure. Photocatalytic experiments confirmed the efficacy of this ternary heterojunction in decomposing various pollutants.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sanghwa Lee, Megalamane S. Bootharaju, Guocheng Deng, Sami Malola, Hannu Hakkinen, Nanfeng Zheng, Taeghwan Hyeon
Summary: Heteroatom-doped metal nanoclusters are synthesized by a metal-exchange strategy, leading to the discovery that Pt doping can significantly enhance the catalytic activity of Cu nanoclusters by around 300-fold. This synthetic approach has the potential to produce Ni-, Pd-, and Au-doped Cu nanoclusters, opening new avenues for studying their molecular structures and catalytic properties.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Yumatorn Mingmongkol, Dang Trung Tri Trinh, Patcharaporn Phuinthiang, Duangdao Channei, Khakhanang Ratananikom, Auppatham Nakaruk, Wilawan Khanitchaidecha
Summary: In this study, metal-doped titanium dioxide was synthesized to improve photocatalytic degradation and antimicrobial activities. The copper-doped TiO2 nanoparticles showed well-maintained anatase phase and a decreased band gap. The 0.1 wt.% Cu-doped TiO2 exhibited enhanced photocatalytic degradation and antibacterial ability, while the high Cu doping levels had negative impacts on surface charge and charge transfer.
Article
Chemistry, Multidisciplinary
Hou Ruomeng, Jia Ying, Lv Xiaomeng, Huang Yuanzheng, Shen Keke
Summary: Research has shown that AgBr/TiO2/rGA composites can effectively degrade UDMH in sunlight, with a maximum conversion rate of 51% and no detection of NDMA under optimal conditions.
Article
Chemistry, Physical
Jingling Yang, Shiman He, Hongwei Liu, Esa Jaatinen, Eric Waclawik, Jiamin Quan, Sarina Sarina, Chun He, Senchuan Huang, Huaiyong Zhu, Mingmei Wu
Summary: Researchers utilized a vertically oriented anatase mesocrystal (meso-TiO2) as the support to enhance the light absorption of plasmonic Au NPs, achieving efficient photocatalytic elimination of sulfur-containing volatile organic compounds and hydrogen evolution from water. This research opens up a new paradigm to improve the photocatalytic performance of plasmonic metals by utilizing the light reflection model.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Praveen Lavudya, Harita Pant, Vadali V. S. S. Srikanth, Rajanikanth Ammanabrolu
Summary: An easy microwave-assisted hydrothermal method is used to prepare mesoporous and phase pure anatase TiO2 nanospheres in this research. The ATNS exhibits a high specific surface area, high N2 adsorption capacity, and shows a photodegradation efficiency of methylene blue dye as high as 98%.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
