Journal
INORGANIC CHEMISTRY COMMUNICATIONS
Volume 123, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.inoche.2020.108357
Keywords
Methyl Orange; Methylene Blue; Methylene Bridge; Periodic Mesoporous Organo Silica; Substantial Degradation; Effective Surface Area; Reproducibility
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Funding
- Islamia University of Bahawalpur (IUB)
- Higher Education Commission (HEC) of Pakistan
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The study successfully synthesized silver and zinc oxide supported periodic mesoporous organosilicates for catalytic degradation of dye-containing industrial effluents. Results showed that silver-supported organosilicates had higher degradation efficiency and reusability compared to zinc oxide-supported organosilicates.
Water resources are badly affected by industrial effluents containing organic azo dyes. The present study successfully synthesized silver (Ag) and zinc oxide (ZnO) supported periodic mesoporous organosilicates (Ag-PMOS and ZnO-PMOS) for catalytic degradation of methylene blue (MB) and methyl orange (MO). Initially, methyacryl functionalized periodic mesoporous organosilica (PMOS) framed through tween-80 ((T-80) C64H124O26) templates by co-condensation of sodium silicate (Na2SiO3) and 3-methacryloxypropyl trimethoxysilane (C10H20O5Si). Formerly, Ag-PMOS and ZnO-PMOS structured by adsorbing Ag and ZnO on PMOS. The synthesized PMOS, Ag-PMOS and ZnO-PMOS were characterized by XRD, FT-IR, TGA, Photoluminescence (PL) and TEM, which sign posted successful assortment of methyacryl, Ag and ZnO moieties in products. These materials found to have effective surface area proved by 81% and 48%, 47% and 57% competent degradation of MB and MO by Ag-PMOS and ZnO-PMOS respectively. Moreover, significant results of 71% and 45%, 44% and 54% reduction of MB and MO recuperated by recycled Ag-PMOS and ZnO-PMOS respectively. Substantial degradation competency and operative reusability of Ag-PMOS were superior than ZnO-PMOS due to better charge transfer capability and high durability. Outcomes of present work proved that Ag-PMOS and ZnO-PMOS have good catalytic properties for photocatalytic degradation of methylene blue (MB) and methyl orange (MO) under visible lights.
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