Synergistic adsorption and photocatalytic properties of AC/TiO2/CeO2 composite for phenol and ammonia–nitrogen compound degradations from petroleum refinery wastewater

Construction of a Novel Visible-Light-Driven Z-Scheme NiAl-LDH Modified (BiO)2CO3 Heterostructure for Enhanced Photocatalytic Degradation Antibiotics Performance in Natural Water Bodies

“…The TOC test results were presented in Figure S6; after 3 h irradiation, the TOC remove efficiency achieved 67.53%. Figure (c) depicts the kinetic curves of prepared photocatalysts that were fitted via the pseudo-first-order kinetic model, and the equation is below: …”

Facile fabrication of a BiOBr–Cu2+/TiO2 suspension for efficient equipment decontamination

“…Typically, adsorption experiments were performed by incubating and shaking the absorbents (15 mg) with phenol solutions (10 mg L −1 , 50 mL) with detection at 10 min intervals. For the acquisition of the rate-controlling mechanism in the surface adsorption process, the pseudo-first-order model, pseudo-second-order kinetic model, and intraparticle diffusion 31–33 presented in eqn (1)–(3) were employed to describe the kinetics behaviour of BiOBr–Cu 2+ /TiO 2 .ln( Q e − Q t ) = ln Q e − k 1 t 1/ Q t = 1/( k 2 Q e 2 ) − t / Q e Q t = k i t 1/2 + C i Here, Q t (mg g −1 ) and Q e (mg g −1 ) refer to the adsorption capacity at time ( t , min) and equilibrium adsorption capacity, respectively. k 1 (min −1 ), k 2 (g mg −1 min −1 ), and k i (mg L −1 min 1/2 ) are the kinetics constants of pseudo-first-order, pseudo-second-order, and intraparticle diffusion kinetics models, respectively.…”

“…Typically, adsorption experiments were performed by incubating and shaking the absorbents (15 mg) with phenol solutions (10 mg L À1 , 50 mL) with detection at 10 min intervals. For the acquisition of the rate-controlling mechanism in the surface adsorption process, the pseudo-first-order model, pseudosecond-order kinetic model, and intraparticle diffusion [31][32][33] presented in eqn ( 1)-( 3) were employed to describe the kinetics behaviour of BiOBr-Cu 2+ /TiO 2 .…”

“…Additionally, the intraparticle diffusion kinetic plots in Fig.5Dand TableS1(ESI †) give some different findings regarding the adsorption mechanisms. The non-zero value of C i (0.886) indicates that the surface adsorption is not the only factor to control the rate of adsorption; ion exchange between the substances and targets can also exert an influence on the adsorption rate 32.…”

Z-Scheme MoS2/TiO2/graphene nanohybrid photocatalysts for visible light-induced degradation for highly efficient water disinfection and antibacterial activity

“…1 Photocatalysis is a potential process for the elimination of hazardous organic compounds from the environment because of reactive oxygen species (ROS) such as superoxide radicals (˙O 2 − ) and hydroxyl radicals (˙OH) that ultimately mineralize recalcitrant chemicals to benign products such as H 2 O and CO 2 . 2–6 The solar light irradiation of semiconductors or nanomaterials, especially those in the heterostructure form, generates electron–hole (e − /h + ) pairs that mainly remove organic environmental contaminants. Much has been reported on the application of photocatalytic semiconductor materials as a means to degrade environmental contaminants such as organic compounds, heavy metal ions, and antibiotics.…”