Recent advances in functionalized polymer-based composite photocatalysts for wastewater treatment

Wastewater Treatment Using High-Performance In Situ Formed Double-Heterojunction Janus Photocatalyst Microparticles Shaped via a Microfluidic Device

“…Numerous studies have been conducted to examine how the temperature affects photocatalytic reactions. According to studies, reaction temperatures above 80 °C are unfavorable to the adsorption phenomenon and speed up the recombination of e – –h + pairs, thereby decreasing the photocatalytic activity Figure c shows the relationship between the temperature and the distance between the light source and the reactor wall, where the temperature decreases as the distance between the light source and the reactor increases and vice versa.…”

“…According to studies, reaction temperatures above 80 °C are unfavorable to the adsorption phenomenon and speed up the recombination of e − −h + pairs, thereby decreasing the photocatalytic activity. 43 Figure 5c shows the relationship between the temperature and the distance between the light source and the reactor wall, where the temperature decreases as the distance between the light source and the reactor increases and vice versa. In other words, the results suggest there should be a balance between the negative effects of raising the temperature and the positive effects of reducing the distance.…”

“…It came to the conclusion that pH directly affects the rate constant value. 43 Figure 6b shows the photocatalytic activity of Ag 0 /5-Ag 0 -TiO 2 /TiO 2 @PDMS microparticles at different pH values (3, 5, 7, 9, and 11) at irradiation time 30 min as well as (for RhB) 10 g/L PC dose, 15 wt % TiO 2 , 3 wt % salt, and 20 mg/L dye concentration and (for TC) concentration 50 mg/L, 2 g/L PC dose, 10 wt % TiO 2 , and 7 wt % salt as reaction conditions. Figure 6b presents that at pH 11, the degradation efficiency of RhB and TC is the highest, which is consistent with numerous studies that have been done on the photodegradation of RhB.…”

Nanomaterials for Remediation of Environmental Pollutants

“…The effectiveness, low cost, and environmentally favorable approach for removing metal pollutants from soils are some of the most prominent benefits connected with this sort of remediation technology [ 142 ]. Carbon-based nanomaterials, for example, carbon nanotubes, oxides of metal (ferric oxide and titanium oxide), and various nanocomposites are some of the engineered nanomaterials that have been utilized to immobilize soil pollutants [ 143 ]. For example, ferric oxide nanoparticles have an extraordinary potential to absorb and immobilize heavy metals such as Cd and As from various media samples [ 144 ].…”

Antibiotics Contaminated Irrigation Water: An Overview on Its Impact on Edible Crops and Visible Light Active Titania as Potential Photocatalysts for Irrigation Water Treatment

“…Polymeric supports are nontoxic, low cost, widely available, resistant to UV light, durable, mechanically stable, and photostable. The hydrophobic properties of many polymers enables them to promote catalyst adsorption by increasing the pollutant concentration on its outer surface (Arif et al, 2020). Wang et al (Wang C. et al, 2017) prepared a photocatalytic nanocomposite membrane of Au-doped TiO 2 supported on polydopamine (pDA)-coated polyvinylidene fluoride (PVDF) (Au-TiO 2 /pDA/ PVDF).…”