Adsorption and photocatalytic scavenging of 2-chlorophenol using carbon nitride-titania nanotubes based nanocomposite: Experimental data, kinetics and mechanism

Abstract

Adsorption and interaction of pollutant species on surface of the catalyst materials play an important role on the photocatalysis process. Herein, experimental data on the adsorption behavior of 2-chlorophenol (2-CP) onto graphitic pure carbon nitride (C 3 N 4 ), titania nanotubes (TiO 2 —NTs) and carbon nitride/titania nanotubes nanocomposite (C 3 N 4 /TiO 2 —NTs) from synthetic wastewater has been summarized. The data on photocatalytic degradation of the 2-CP under both ultraviolet (UV) and visible light irradiation is also presented. This work also evaluates the 2-CP scavenging efficiency of C 3 N 4 /TiO 2 —NTs nanocomposite prepared by calcination of 2 wt.% melamine with TiO 2 —NTs at 450 °C. The adsorption and photocatalysis experiments were conducted for 180 min at pH 7 with 100 mL solution of 2-CP (40 mg/L) and 0.05 g catalyst material. The acquired data can be valuable to identify the equilibrium time for 2-CP adsorption onto C 3 N 4 , TiO 2 —NTs, and C 3 N 4 /TiO 2 —NTs nanocomposite. Moreover, the obtained data can be useful to identify the suitable light source for the decomposition of 2-CP in the aquatic environment. The evaluated kinetic data might be significant for identifying the adsorption and photocatalysis reaction rate onto the applied catalyst materials. The obtained adsorption and photocatalysis data have been compared with that in literature to identify the adsorption and photocatalysis behavior of 2-CP on numerous catalysts at different experimental conditions.

Fast Removal of Methylene Blue via Adsorption-Photodegradation on TiO2/SBA-15 Synthesized by Slow Calcination

“…One of the developments in dye treatment is via the combination of adsorption-photodegradation processes [ 4 , 5 ]. Several studies reported using SBA-15 and silica combined with carbon nitride or titania as an efficient photocatalyst for dye removal [ 4 , 6 , 7 , 8 , 9 ]. The method offers simultaneous adsorption of pollutants followed by photodegradation under light irradiation to decompose the adsorbed pollutants into less harmful molecules [ 6 ].…”

Use of bagasse to remove 2-chlorophenol in aqueous system

“…Given its resistance to degradation, 2-CP tends to accumulate in natural settings. Because of its potency as a mutagen and carcinogen, 2-CP is disastrous for aquatic ecosystems (Barakat et al, 2021). This means that before discharge, 2-CP must be removed from industrial effluent.…”

The Use of Composite TiO2/Activated Carbon Fibers as a Photocatalyst in a Sequential Adsorption/Photocatalysis Process for the Elimination of Ciprofloxacin

“…However, ACF/photocatalyst composite materials are little studied in the field of wastewater treatment [38]. In this category, different types of fibers can be found, such as commercial fabrics [12,39,40], fibers made from natural resources such as coconut [41], carbon nanotubes [42,43], and graphene-like materials [44]. For commercial activated carbon fibers, studies are often focused on the materials (i.e., on the synthesis or deposition of the coating and its characterization).…”