Research Advances in Photocatalysis of Inorganic Hollow Spheres

Abstract

Inorganic hollow spheres have shown their superiority in photocatalytic area due to the large specific surface area, controllable structure and their own special optical, electrical, magnetic properties. According to the classification of inorganic hollow spheres as photocatalysts, recent research progress and application status have been summarized in this paper. At last, the future developments of inorganic hollow spheres in photocatalytic field have been discussed.

Passive Solar Photocatalytic Treatment of Emerging Contaminants in Water: A Field Study

“…Although supported photocatalysts had lower efficiency, they had certain advantages in the passive systems in terms of energy consumption and feasibility for environmental applications [53]. However, higher photocatalytic performance can be achieved using crystal growth technologies that produce {001} and {110} crystal facets with higher photocatalytic activity [54][55][56][57], and generate structures with higher surface area such as multi-shell TiO2 [58,59], and flower-like TiO2 on nanosheets [60], which is beyond the scope of this research. The main driver of this research was to test a treatment option that can be used in remote regions in northern climates.…”

Five new synonyms for Impatiens procumbens (Balsaminaceae) in China

“…In China, 352 species of Impatiens have been recorded, including 273 species endemic to China, which are concentrated throughout the Qinling Mountains, southern Tibet, the Hengduan Mountains, Yunnan–Guizhou–Guangxi karst region, the middle and lower reaches of the Yangtze River and other regions ( Yuan et al 2022 ). It is well known that Impatiens species are notoriously difficult to identify, because of their abundant character variations and morphological similarities, which makes the boundary between species very blurred ( Grey-Wilson 1980 ; Cong 2007 ; Tian et al 2007 ). From the perspective of research history, there were many factors in the early published species, such as the distance between collectors and researchers, the collection of specimens with the same number in different herbaria, the change of place names etc., all of which have led to taxonomic problems, for example, the same species with different names, the absence of characters, and incorrect records.…”

Novel Composite Material SiO₂<i>-</i>Cd₂SiO₄@CdS: Synthesis, Properties, Application

“…This approach is essential not only for environmental safety and protection, but for a number of manufacturing technologies. As a rule, photocatalysts on the base of TiO 2 [1][2][3][4], ZnO [5,6] or metal chalcogenides, for example CdS [7,8], are used for such purposes. However, these materials original efficiency under visible light is not very high.…”