Premium
Efficacy of cobalt‐incorporated mesoporous silica toward photodegradation of Alizarin Red S and its kinetic study
Author(s) -
Guru Tharividi Venkata Siva Parvathi Veera Satya,
Krishna Vaddadi,
Rajesh Ella
Publication year - 2021
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.202000335
Subject(s) - photodegradation , chemistry , scanning electron microscope , mesoporous material , alizarin red , adsorption , cobalt , analytical chemistry (journal) , desorption , langmuir , photocatalysis , nuclear chemistry , chemical engineering , inorganic chemistry , chromatography , materials science , catalysis , organic chemistry , composite material , medicine , staining , pathology , engineering
Cobalt‐incorporated mesoporous silica (Co‐MCM‐41) has been synthesized along with MCM‐41. The materials were characterized using powder X‐ray diffraction, scanning electron microscope, and nitrogen adsorption–desorption study techniques. The surface area (S BET , m 2 /g), pore size (Å), and pore volume (cc/g) have been found to be reduced in the Co‐MCM‐41 compared with MCM‐41. Furthermore, the Scanning electron microscopy coupled with energy dispersive X‐Ray spectroscopy (SEM‐EDAX) analysis has clearly shown the presence of the respective elements in the materials. The bandgap (eV) was also significantly reduced in the Co‐MCM‐41 compared with its parent template, observed by applying the Kubelka‐Munk function to the results of UV–Vis DRS. The materials were successfully used as photocatalysts in the photodegradation studies of the Alizarin Red S dye, and pseudo‐first‐order kinetics was performed using the Langmuir‐Hinshelwood kinetic model. All the required experimental conditions were optimized.