Microwave-assisted rapid synthesis of Cu2S:ZnIn2S4 marigold-like nanoflower heterojunctions and enhanced visible light photocatalytic hydrogen production via Pt sensitization

Hydrogen-Treated TiO2 Nanorods Decorated with Bimetallic Pd–Co Nanoparticles for Photocatalytic Degradation of Organic Pollutants and Bacterial Inactivation

“…The components of the equivalent circuit are as follows: series resistance (R1), two sub-circuits of resistance and capacitance (R2 and CPE1) as the interface between the electrode and electrolyte, and R3 and CPE2 for the bulk. The lower resistance values (R2: 66.9 Ω, R3: 811.1 Ω) for Red-Oxi-Pd(1)Co(1)/ATO than the Oxi-Pd(1)Co(1)/ATO photoanodes (R2: 1018 Ω, R3: 2284 Ω) indicate the effective charge separations on the surface and in the bulk in reduction samples . The steady-state PL spectrum demonstrates emissions under one sun illumination conditions for all bimetallic Pd/Co-loaded ATO catalysts, wherein minor modulations are observed, depending on the states of Pd and Co species.…”

“…The components of the equivalent circuit are as follows: series resistance (R1), two sub-circuits of effective charge separations on the surface and in the bulk in reduction samples. 34 The steady-state PL spectrum demonstrates emissions under one sun illumination conditions for all bimetallic Pd/Co-loaded ATO catalysts, wherein minor modulations are observed, depending on the states of Pd and Co species. More information on the photo-excited carriers is available from the time-resolved PL (TRPL) analysis.…”

“…The waterborne/foodborne pathogens of E. coli (Gram-negative) and S. aureus (Gram-positive) bacteria were utilized for disinfection (inactivation) experiments over photocatalysts. Furthermore, E. coli and S. aureus were cultured and quantified as explained by Cho et al 34 Briefly, each of E. coli and S. aureus was injected into a 250 mL baffled Erlenmeyer flask containing 100 mL of Luria Bertani (LB) broth (Difco Co., USA) and grown at 37 °C for 18 h in an incubator with continuous shaking at 180 rpm. The bacterial cells were collected by centrifugation in a 50 mL conical tube at 4000 rpm for 10 min (two more times) using phosphate-buffered saline solution (PBS, 7.2, Sigma Co.) to remove all remaining nutrient broth.…”

Development of Dual-Nanoarchitecture Photoanodes Based on Microwave-Assisted ZnS(en)0.5 Nanoplates for Photoelectrochemical Hydrogen Generation

“…With careful considerations, the Teflon-lined cylinder was inserted in a Teflon bottle with a tightly screwed bottle cap and placed into an electric MW oven as shown in Figure S15a, Supporting Information (Lotte microwave, 800 W). 56 Initially, the MW was irradiated for 30 s (0.5 min) and maintained for a further 10 min of cooling. In the following step, the above-mentioned process was repeated every 0.5 s for 1, 1.5, and 2 min MW irradiation periods in intervals of 10 min, and it was naturally cooled down.…”

“…Subsequently, zinc nitrate hexahydrate (140 mg) and thiourea (60 mg) were mixed with ethylenediamine (60 mL) under continuous stirring for a certain period, after which the prepared solution was poured into a Teflon-lined cylindrical chamber with the Zn foil vertically mounted on a Teflon holder. With careful considerations, the Teflon-lined cylinder was inserted in a Teflon bottle with a tightly screwed bottle cap and placed into an electric MW oven as shown in Figure S15a, Supporting Information (Lotte microwave, 800 W) . Initially, the MW was irradiated for 30 s (0.5 min) and maintained for a further 10 min of cooling.…”