Article
Materials Science, Ceramics
Charitha Thambiliyagodage, Shanitha Mirihana
Summary: This study successfully synthesized Fe and Cu co-doped TiO2 nanoparticles and investigated their photocatalytic activity. Doping with Fe and Cu can enhance the visible light sensitivity of TiO2, but increasing dopant concentration leads to a decrease in photocatalytic activity.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Justin Alfred Pe, Sung-Phil Mun, Min Lee
Summary: Fe-doped titanium dioxide-carbonized medium-density fiberboard (Fe/TiO2-cMDF) showed different photodegradation kinetics under Blue LED and commercial LED, but still demonstrated great potential for dye wastewater treatment under visible light.
Article
Chemistry, Multidisciplinary
Yingying Li, Jiafei Wang, Xiang Wan, Qishu Qu
Summary: This paper presents a novel approach to prepare TiO2/graphene nanocomposites with improved photocatalytic performance by using porous SiO2/graphene spheres as supports. The catalyst showed a higher degradation rate of the dye RhB compared to commercial P25 catalyst.
Article
Engineering, Chemical
Pengfei Zhou, Yanbai Shen, Sikai Zhao, Jinzhou Bai, Cong Han, Wengang Liu, Dezhou Wei
Summary: The novel ternary Ag/TiO2/clinoptilolite (ATC) nanocomposite exhibits excellent photocatalytic performance for degrading xanthates, with enhanced adsorption capacity, visible-light absorption range, and charge separation efficiency. The possible photodegradation mechanism was proposed based on real-time spectral evolution, trapping experiment, and UV-vis DRS results.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Materials Science, Multidisciplinary
Yanhui Ge, Hao Luo, Juanru Huang, Zhiming Zhang
Summary: The study presents a simple strategy for synthesizing visible-light-active TiO2 photocatalysts with high efficiency in degrading organic dyes, capable of efficiently removing Rh B and MB within a short period of time.
Article
Engineering, Environmental
Maria Eliana Camargo Ferreira, Eduarda Gameleira Bernardino, Maria Angelica Simoes Dornellas de Barros, Rosangela Bergamasco, Natalia Ueda Yamaguchi
Summary: Photocatalytic degradation is a promising technology for wastewater treatment due to its high efficiency, low energy consumption, and cost-effectiveness. The use of MnFe2O4 nanoparticles as a photocatalyst has attracted significant attention due to its wide range of applications, stability, and recyclability. This article provides an in-depth review of the current progress on MnFe2O4 and its composites, focusing on their application in visible-light photocatalysis for wastewater remediation, intrinsic properties, preparation methods to enhance photocatalytic performance, and future prospects and challenges in heterogeneous systems. Additionally, the potential and practical applications of these environmental technologies were discussed. The study suggests that surface modifications can significantly improve the performance of MnFe2O4-based multiphase photocatalysts by promoting synergistic effects, utilizing sunlight for irradiation, and reducing electron-hole recombination.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Qi Wang, Wenming Zhang, Xiaoru Hu, Limei Xu, Guodong Chen, Xiaochen Li
Summary: A novel hollow-sphere structure of WO3/TiO2 heterojunction was prepared by a combination of hydrothermal and calcination method. The heterojunction showed improved photocatalytic performance in degrading dye and micro-organic pollutant, with TiO2 acting as a photo-generated hole acceptor to enhance photocatalytic efficiency. This makes it a promising candidate for wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Suqing Wu, Xueyan Li, Yanqin Tian, Yan Lin, Yun Hang Hu
Summary: Black anatase-TiO2 shows higher efficiency in visible light photocatalytic tetracycline degradation compared to white TiO2 and N-doped TiO2, with a different degradation mechanism involving both O-2(-) and h(+) radicals.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Azad Kumar, Chaitany Jayprakash Raorane, Asad Syed, Ali H. Bahkali, Abdallah M. Elgorban, Vinit Raj, Seong Cheol Kim
Summary: The rapid industrialization has led to the release of harmful contaminants into water bodies, posing risks to health and the environment. In this study, inorganic nanocomposites were prepared to treat toxic dyes. The synthesized TiO2/PAni/GO nanocomposites exhibited enhanced ability to degrade Thymol Blue and Rose Bengal dyes through photocatalytic reactions. These findings have potential implications for water pollution control.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Parveen Akhter, Shahid Nawaz, Iqrash Shafiq, Arif Nazir, Sumeer Shafique, Farrukh Jamil, Young-Kwon Park, Murid Hussain
Summary: Photocatalysis is an effective green technology used to degrade organic dyes in water. A ZnO/TiO2 composite catalyst was synthesized and characterized using various techniques. The optimal conditions for effective degradation were determined, and the catalyst demonstrated high efficiency, with 96% dye degradation. The study also proposed a plausible mechanism for the photocatalytic reaction, and revealed the material's stability and kinetic behavior.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Menelisi C. Dlamini, Mbongiseni L. Dlamini, Pumza Mente, Boitumelo Tlhaole, Rudolph Erasmus, Manoko S. Maubane-Nkadimeng, John A. Moma
Summary: A simplistic solvothermal process was used to fabricate novel amorphous TiO2-BiOBr-Bentonite (A-TiO2-BiOBr-Bt) multidimensional photocatalysts in a practical and economically feasible manner. The stickiness of the A-TiO2-BiOBr-Bt wet cake and the low drying temperature make it a suitable composite for the fabrication of the photoreactive inner coating of water treatment containers. The A-TiO2-BiOBr-Bt photocatalyst with a mass ratio of 1:1:2 displayed high surface area, low bandgap, and low electron-hole recombination rate.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Hyeonkyeong Lee, Hyun Sung Jang, Na Yeon Kim, Ji Bong Joo
Summary: The study presents a synthetic strategy to fabricate Cu-doped TiO2 hollow nanostructures for visible light responsive photocatalysis. The Cu-doped TiO2 photocatalysts exhibit excellent photocatalytic performance for phenol degradation under visible light conditions. The preparation method involves sol-gel coating, ion exchange, calcination, and acid leaching processes. The superior photocatalytic performance is attributed to the uniformly doped Cu2+ ions, narrow bandgap, and more reactive TiO2 surface.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Physical
J. A. Acosta-Alejandro, R. Lopez-Gonzalez, D. M. Frias-Marquez, J. M. De la Rosa-Vazquez, M. C. Uribe-Lopez, R. Gomez
Summary: Surface modification was studied to improve the photocatalytic properties of materials. The core/shell synthesis involved in situ oxidation of aniline over the TiO2 surface, enhancing the photocatalytic activity. The step by step synthesis allowed for modification of superficial porosity and successful coverage by titanium dioxide in the anatase phase. The energy band gap of covered materials remained unchanged compared to pure anatase TiO2, indicating that photoactivity occurs through electron conduction by polyaniline.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Z. Moradi Shammi, AH. Kianfar, M. M. Momeni
Summary: CuO-VO2/TiO2 nanocomposite was synthesized by hydrothermal method and characterized by various spectroscopic techniques. The nanocomposite showed efficient photocatalytic activity in degrading dyes under visible light irradiation, with the center dot OH identified as the predominantly active species in the photodegradation process.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Crystallography
Maisari Utami, Shaobin Wang, Febi Indah Fajarwati, Siva Nur Salsabilla, Tania Amara Dewi, Melinda Fitri
Summary: In this study, the photodegradation of Rhodamine B (RhB) using nitrogen-doped titanium dioxide/reduced graphene oxide (N-TiO2/rGO) composite was reported for the first time. The incorporation of N-TiO2 and rGO showed a synergistic effect on the photodegradation of RhB. Under the optimum conditions of pH 2, a photocatalyst mass of 20 mg, and an irradiation time of 90 min, N-TiO2/rGO exhibited the highest photodegradation efficiency of RhB at 78.29%.
