An MCM-41-SO3H catalyst with 14 wt% S was successfully synthesized to be used in furfural production from xylose and hemicellulose a biphasic n-butanol/water system. The precursor MCM-41 the acid-functionalized were characterized by XRD, FTIR, TEM, N2 physisorption, ICP-MS, TPD-NH3, XPS. characterization results indicated that sulfonic process partially decreased ordered mesoporous structure in...

The potential benefits of microwave irradiation for fructose dehydration into 5 hydroxymethylfurfural (5-HMF) have been quantified over a sulfonated metal–organic framework (MOF), MIL 101(Cr)-SO3H. effects temperature (140–170 °C), batch time (5–300 min), and catalyst-to-substrate ratio (0.1–0.01 g/g) were systematically mapped. After 10 min (MW) at 140 °C in DMSO–acetone reaction medium, pract...

Hydrogel products are a class of polymeric materials with hydrophilic structure that allows them to store huge amounts water in three-dimensional networks. The presence groups such as NH2, COOH, OH, CONH2, -CONH-, and -SO3H, well the capillary effect osmotic pressure, contribute network's hydrophilicity. Weaker forces, like van der Waals forces hydrogen bonds, can frequently act cross-links, re...

Covalent organic frameworks (COFs) are highly promising photocatalysts with tunable photophysical properties. So far, they have served both as a photosensitizer and solid support. Introducing second catalytic site in the photoactive COF scaffold to form dual photocatalyst is logical next step towards green photocatalytic chemistry by expanding boundaries of visible-light-driven photoredox catal...

Kirleticilerin giderimi için adsorpsiyon prosesinde aktif karbon yaygın olarak kullanılan adsorbenttir. Aktif karbonun kapasitesini arttırmak fiziksel, kimyasal ve biyolojik modifikasyonlar yapılmaktadır. Bu çalışmada nitrik asit sülfonik kullanılarak yapılan modifikasyonunun yapısal özellikleri üzerine etkileri araştırılmıştır. Orijinal, ile modifiye edilmiş adsorbentlerinin karakterizasyon an...