Preparation of a novel polysulfone membrane by incorporated with carbon dots grafted silica from rice husk for dye removal

A Comprehensive Review of Synthesis, Applications and Future Prospects for Silica Nanoparticles (SNPs)

“…In this respect, the study [167] developed SNPs coupled with Ag particles as an antifouling adsorbent for effective dye removal and water disinfection. In this respect, few of the most recent works include hybrid SNPs with functionalized mesostructured for methylene blue removal [141] and polysulfone membrane with carbon dots grafted silica for dye removal [168] respectively.…”

Recent Improvement Strategies on Metal-Organic Frameworks as Adsorbent, Catalyst, and Membrane for Wastewater Treatment

“…Currently, hydrophobic polymeric-based membranes dominate membrane applications in water purification. Polymer materials such as polyethersulfone (PES) [ 135 , 136 ], polysulfone (PSU) [ 137 , 138 ], and polyvinylidene fluoride (PVDF) [ 139 , 140 ] are widely used due to their high mechanical properties and chemical resistance. However, the occurrence of fouling on the membrane surface is troublesome that can reduce membrane performance.…”

Review on green carbon dot-based materials for the photocatalytic degradation of dyes: fundamentals and future perspective

“…152 The absorption peak was observed at 0.3, 1.1, 0.2, and 0.2, respectively, which exhibited a linear increase in photocatalytic degradation with an increase in photocatalysts. 152 Heng et al 62 observed maximum dye rejection when the percentage weight of the respective photocatalyst was 2.5 Fig. 6(c).…”

“…Later, the prepared metal oxide, ZnO, was loaded on the as-prepared CDs by the solution dispersion method. 2-Propanol and water were used to disperse 0.9 g of ZnO and 0.1 g of CDs and treated at 100 1C for 3 h. Likewise, metal oxides such as TiO 2 61 and SiO 2 62 are doped on the prepared CDs. Heterogeneous metals such as N, S, P, and non-metals like Cl are also doped with the prepared CDs.…”

“…70 Atchudan et al 66 reported the FT-IR spectrum of TiO 2 , N/CDs and observed vibrations at 1438 cm À1 , 1368 cm À1 , 1026 cm À1 , and 580 cm À1 , denoting -CQN-, phenolic C-OH, epoxy C-O-C/C-N, and TiO/TiO-Ti frameworks apart from the ones discussed above. Heng et al 62 reported the FT-IR spectrum of CDs/SiO 2 where peaks at 460 cm À1 and 900 cm À1 correspond to Si-O-Si, 1100 cm À1 and 3500 cm À1 corresponded to Si-OH bending and stretching vibrations, respectively, and at 1140 cm À1 for Si-O-C vibration. Also, the appearance of thionyl chloride in the CDs displayed peaks at 2488 cm À1 , 1068 cm À1 , and 1174 cm À1 , indicating S-H, CQS, and C-S vibrations and 1010 cm À1 , 1105 cm À1 , and 500-900 cm À1 indicating C-S-C, C-Cl in aromatic hydrocarbons and aliphatic hydrocarbons, respectively.…”