TiO2/Activated Carbon/2D Selenides Composite Photocatalysts for Industrial Wastewater Treatment

Water, Journal Year: 2023, Volume and Issue: 15(9), P. 1788 - 1788

Published: May 6, 2023

Even in the 21st century, water contamination has been a big problem and industrial processes are to be blamed for polluted supplies. The use of sunlight process photocatalysis is an efficient way purify wastewater. Composites TiO2/activated carbon/two-dimensional selenides performed better than either individual material or binary composites this application. A straightforward hydrothermal technique was employed synthesis photocatalysts. synthesized photocatalytic were verified with help UV-Visible spectroscopy, FTIR, XRD, SEM. heterostructures absorbed nearly all sun’s UV visible light. These photons then converted into usable reducing electrons oxidizing species such as •O2 OH• decompose organic pollutants from Since there additional pathways available charge transfer along several active edge sites, composite photocatalysts proven more TiO2 2D MoSe2 components. With cascade-driven mechanism electrons, these channels can transmit charges single-component heterojunctions. results provided realistic method developing photocatalyst powered by solar light wastewater treatment. Results degradation methylene blue suggest that possess activity. This enhanced activity not limited dyes. Other hazardous present decomposed using approach.

Language: Английский

---

Effect of inorganic salt on the removal of typical pollutants in wastewater by RuO2/TiO2 via catalytic wet air oxidation

Chemosphere, Journal Year: 2022, Volume and Issue: 312, P. 137194 - 137194

Published: Nov. 10, 2022

Language: Английский

---

Activation of persulfate by iron‐loaded soybean straw biochar for efficient degradation of dye contaminants: Synthesis, performance, and mechanism

Environmental Progress & Sustainable Energy, Journal Year: 2023, Volume and Issue: 42(5)

Published: June 19, 2023

Abstract Biochar loaded with metal ions has been widely used to activate persulfate degrade organic pollutants. However, the preparation conditions of catalysts are always controversial. In this study, co‐heating soybean straw high carbon and low nitrogen nano‐iron oxide were systematically discussed by response surface method, an efficient catalyst (Fe@BC) was obtained. Fe@BC can effectively sodium (PS) three synthetic azo dyes (Methyl orange (MO), Amino black 10B (AB10B), Orange II) rhodamine B (RhB). Under optimum conditions, removal rate total these four reached 41.1%–89.8% final degradation could reach 100%. The physicochemical properties studied SEM, BET, XRD, XPS TGA. results revealed that specific area 195.6m 2 /g. Further, reducing iron C generated 0.09 Fe 1.91 zero‐valent iron. Free radical scavenging experiments electron paramagnetic resonance (EPR) measurements showed main reactive species (ROS) in Fe@BC/PS system hydroxyl radicals (•OH) singlet oxygen ( 1 O ). Finally, Several modification systems explored, pH analyzed, effects PS dosage on performance also studied. This study provides a scientific basis for production biochar energy, effective treatment scheme printing dyeing wastewater.

Language: Английский

---

Removal of Disperse Yellow-42 Dye by Catalytic Ozonation Using Iron and Manganese-Loaded Zeolites

Water, Journal Year: 2023, Volume and Issue: 15(17), P. 3097 - 3097

Published: Aug. 29, 2023

In this research, the efficiency of catalytic activity iron and manganese-loaded (bimetallic) sodium zeolite was investigated for ozonation-based removal disperse yellow 42 dye. The impregnation method used to deposit Fe Mn on surface zeolite. morphological analysis before after deposition conducted by SEM, EDX, FTIR. It found that several variables, including ozone dose, contact time, pH, catalyst hydroxyl radical scavenger action, greatly influenced dye removal. chemical oxygen demand (COD) ozonation using Mn-loaded from real textile wastewater also investigated. After 30 min treatment with at pH 6, maximum 73% achieved a dose 0.5 g an supply 1.8 mg/min. effect (HRSE), decline in 61% demonstrated highly dependent production. COD 59% process, which increased 79% ozonation.

Language: Английский

---

Synergistic catalytic enhancement of chemical oxygen demand removal using Mn-Bi doped submicron fly ash carrier: Mechanistic insights and environmental adaptability

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 129203 - 129203

Published: Aug. 17, 2024

Language: Английский

---