Photocatalytic degradation of Rhodamine B over a novel mesoporous titanosilicate/g-C 3 N 4 nanocomposite under direct sunlight irradiation

A non-doped microporous titanosilicate for bimodal adsorption-photocatalysis based removal of organic water pollutants

“…A novel titanosilicate was prepared in microbead morphology of [20][21][22][23][24][25][26][27][28][29][30] μm diameter, via an oil-water emulsion based surfactanttemplating technique, without the addition of any dopants. The synthesised material was found to have a microporous structure with ~1.3 nm pores and a high BET surface area of 468 m 2 /g.…”

“…Studies investigating titanosilicates as photocatalysts for the degradation of organic contaminants are scarce, compared to those focused on conventional heterogeneous catalysis. The ones that do, with activities comparable or surpassing TiO 2 , often include either titanosilicates doped with toxic metals [26], or made into composite materials, such as with graphitic carbon nitride [28,29]. These extra components can be expensive and they are typically produced via hydrothermal synthesis, which requires heating at high temperatures over long periods of time, further adding to the cost of production.…”

“…With the above goal in mind, this study was aimed to explore another well-known property of titanosilicatesadsorption, to be used in conjunction with photocatalytic ability, in order to enhance their capability in removal of organic impurities for applications in water treatment. Recent research has indicated a trend towards development of novel titanosilicates as adsorbents for removal of organic impurities, heavy metals and radioactive pollutants from water [28][29][30][31][32]. However, the preparation cost and use of non-environmentally benign reagents/conditions on doped and nanocomposite titanosilicates in such works will likely prevent their use in real-world applications.…”

Systematic Investigation for the Photocatalytic Applications of Carbon Nitride/Porous Zeolite Heterojunction

“…A facile, economical, and easy synthesis methodology of TCN(1-8-8) using commercially available TS-1, urea, and thiourea should be attractive from the commercial standpoint. This should win over the other reported procedure, 66 also owing to its higher/comparable activity 66,67 in the degradation of a wide range of dyes and antibiotics under sunlight without the application of any oxidizing agent (such as H 2 O 2 ). These results strongly suggest that the presently investigated heterojunction nanocomposite photocatalyst has the potential to be an efficient material for large-scale applications in water remediation.…”

Quaternary ammonium hydroxide‐functionalized g‐C3N4 catalyst for aerobic hydroxylation of arylboronic acids to phenols

“…[1][2][3] In the last decade, g-C 3 N 4 has been extensively investigated in the field of photo-catalysis because of its interesting electronic and optical properties, photo-electrochemical water splitting, [4,5] CO 2 reduction, [6,7] and photocatalytic degradation of pollutants. [8][9][10][11] Later on, g-C 3 N 4 was also widely studied as versatile support for noble metals to accomplish photocatalytic hydroxylation of benzene, oxidation and hydrogenation reactions, Suzuki and Sonogashira couplings, and Knoevenagel reaction. [12][13][14][15][16] In the context of metal-free catalysis, g-C 3 N 4 has been tethered with several functional groups such as amines, polyethyleneimine (PEI), and hydrazine either by chemical grafting or physical impregnation for CO 2 capture, CO 2 reduction, and water splitting to H 2 .…”