A wheat straw cellulose based semi-IPN hydrogel reactor for metal nanoparticles preparation and catalytic reduction of 4-nitrophenol

Abstract

A wheat straw cellulose-g-poly(acrylic acid)/poly(vinyl alcohol) semi-IPN hydrogel (WSC-g-PAA/PVA) was synthesized.

A facile preparation method for new two-component supramolecular hydrogels and their performances in adsorption, catalysis, and stimuli-response

“…48 However, 4-AP containing a -NH 2 group is widely used in a lot of industries, including pharmaceuticals and dye intermediates. [49][50][51] The process of the catalytic reduction of 4-NP to 4-AP can be detected using the UV-vis absorption spectroscopy because a continuous decrease in the absorption peak at 401 nm can be observed during the reaction. As shown in Fig.…”

AuNPs composites of gelatin hydrogels crosslinked by ferrocene‐containing polymer as recyclable supported catalysts

“…reported that the triazolylbiferrocene‐containing polymers synthesized by using the ring‐opening metathesis polymerization (ROMP) could react with HAuCl 4 to produce mixed‐valent triazolylbiferrocenium polyelectrolyte networks that encapsulate AuNPs . Furthermore, for the efficient use of AuNPs as catalysts, it is necessary to immobilize AuNPs in certain supports, not only to inhibit the aggregation of AuNPs caused by their high surface energy but also to make the catalysts recyclable for repeated use . Therefore, various carriers have been proposed to immobilize and disperse AuNPs, including fibers and hydrogels .…”

Photoelectrocatalytic application of palladium decorated zinc oxide-expanded graphite electrode for the removal of 4-nitrophenol: experimental and computational studies

“…1 Nitrophenol and its derivatives are organic pollutants which are mostly used in agricultural, textile, paper, explosives and pharmaceutical industries. 2,3 They are potentially hazardous and mutagenic to humans and the general ecosystem. 2,4 Among the derivatives of nitrophenols, 4-nitrophenol is found to be highly toxic, stable and biorefactory in nature.…”

“…2,3 They are potentially hazardous and mutagenic to humans and the general ecosystem. 2,4 Among the derivatives of nitrophenols, 4-nitrophenol is found to be highly toxic, stable and biorefactory in nature. 2,4 Therefore, the removal of 4-nitrophenol from industrial wastewaters is essential.…”

“…2,4 Among the derivatives of nitrophenols, 4-nitrophenol is found to be highly toxic, stable and biorefactory in nature. 2,4 Therefore, the removal of 4-nitrophenol from industrial wastewaters is essential. Several traditional methods have been utilised for the treatment of these 4-nitrophenol-containing wastewaters, but the poor removal rate is still a general concern due to its high resistance to biodegradation.…”