期刊
NANOMATERIALS
卷 11, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/nano11123195
关键词
TiO2; graphene family nanomaterials (GFN); synthesis; surface characterization; photocatalytic removal; air and water pollutants
类别
资金
- Ministry of Science and Technology (MOST) in Taiwan [MOST 110-2628-E-110-001-, MOST108-2622-E-110-013-CC3, MOST 107-2221-E-110-003-MY3, MOST 106-2621-M-110-003]
The development of green technologies is a critical issue due to industrial revolutions and resource scarcity. The combination of TiO2 and graphene family nanomaterials (GFN) in photocatalysis shows great potential for applications with enhanced characteristics and improved reactions. Insights from this review can guide further optimization of GFN-TiO2 photocatalytic activity and future developments in this field.
Given the industrial revolutions and resource scarcity, the development of green technologies which aims to conserve resources and reduce the negative impacts of technology on the environment has become a critical issue of concern. One example is heterogeneous photocatalytic degradation. Titanium dioxide (TiO2) has been intensively researched given its low toxicity and photocatalytic effects under ultraviolet (UV) light irradiation. The advantages conferred by the physical and electrochemical properties of graphene family nanomaterials (GFN) have contributed to the combination of GFN and TiO2 as well as the current variety of GFN-TiO2 catalysts that have exhibited improved characteristics such as greater electron transfer and narrower bandgaps for more potential applications, including those under visible light irradiation. In this review, points of view on the intrinsic properties of TiO2, GFNs (pristine graphene, graphene oxide (GO), reduced GO, and graphene quantum dots (GQDs)), and GFN-TiO2 are presented. This review also explains practical synthesis techniques along with perspective characteristics of these TiO2- and/or graphene-based materials. The enhancement of the photocatalytic activity by using GFN-TiO2 and its improved photocatalytic reactions for the treatment of organic, inorganic, and biological pollutants in water and air phases are reported. It is expected that this review can provide insights into the key to optimizing the photocatalytic activity of GFN-TiO2 and possible directions for future development in these fields.
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