Synthesis and photocatalytic activity of BiOBr nanosheets with tunable exposed {0 1 0} facets

Hydrothermal synthesis of BiOBr and BiOBr/CNT composites, their photocatalytic activity and the importance of early Bi6O6(OH)3(NO3)3·1.5H2O formation

“…Photocatalysis is considered the most promising, effective, and "greener" technique [9][10][11] for eliminating toxic and recalcitrant organic pollutants from the environment by complete mineralization of such pollutants under mild conditions [12][13][14]. Other applications of photocatalysis include production of hydrogen by electrochemical water splitting [15], reduction of CO 2 into organic substances [16,17], ni trogen fixation, sterilization [18,19], self-cleaning glasses [20][21][22][23] and heavy metal removal from water [14,[24][25][26]. The traditionally used semiconductor photocatalyst, titanium dioxide (TiO 2 ) [23], although an affective photocatalyst, is only able to take advantage of ultraviolet light which comprises of 4% of total solar energy due to its wide band-gap (3.2 eV for anatase) [11,[27][28][29].…”

GSH-assisted hydrothermal synthesis of MnxCd1−xS solid solution hollow spheres and their application in photocatalytic degradation

“…The unstable groups initiate a chain reaction during irradiation, which may be the cause of RhB decolor quickly. Generally, RhB degradation under visible light irradiation contained a direct photocatalytic process and an indirect dye photosensitization process [43]. Therefore, this superior photocatalytic activity can be attributed to a synergistic effect of photocatalytic and photosensitization.…”

First Principle Study of Nitrogen Fixation on Molybdenum Containing Semiconductor Surface with a Developed Machine Learning Approach

“…Some studies indicate that efficient fixation of nitrogen can be proceeded; for example, at room temperature and atmospheric pressure, BiOBr nanosheets can reduce nitrogen by utilizing water using visible light illuminative BiOBr nanosheets of oxygen vacancies in the absence of organic scavengers with fine metal cocatalysts. [71][72][73] The designed catalytic oxygen vacancies of BiOBr nanosheets have the ability to activate the adsorbed nitrogen by interfacial electron transfer from excited BiOBr nanosheets which can thus efficiently reduce to ammonia. [71,73] These nanosheets allow tunable exposing proportion of (0 1 0) facets, due to different n-alcohols in use by the synthesis process, this also allows the modulation of size and thickness of BiOBr nanosheets in a wide range.…”

“…[71,73] These nanosheets allow tunable exposing proportion of (0 1 0) facets, due to different n-alcohols in use by the synthesis process, this also allows the modulation of size and thickness of BiOBr nanosheets in a wide range. [71,72] Also, these nanosheets demonstrated efficient photodegradation activity on salicylic acid (SA) and rhodamine B(RhB). [72,73] This great photocatalytic activity was due to thin lamellar thickness and the exposure of (0 1 0) facets, this allows the facilitation of photo-induced holes and electrons separation.…”

“…[71,72] Also, these nanosheets demonstrated efficient photodegradation activity on salicylic acid (SA) and rhodamine B(RhB). [72,73] This great photocatalytic activity was due to thin lamellar thickness and the exposure of (0 1 0) facets, this allows the facilitation of photo-induced holes and electrons separation. [72,73] Another group reports a carbon-tungstic-acid (Wo 3 H 2 O) hybrid for co-optimization of nitrogen activation as well as subsequent photo-induced protonation.…”