Oxygen activation and transfer for catalytic wet-air oxidation of wastewater: a short review DOI Creative Commons
Pengfei Ma, Nuowei Zhang, Jing Shi

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(50), P. 37618 - 37627

Published: Jan. 1, 2024

With the rapid growth of population and industrial production, wastewater pollution has become a major environmental issue. Wastewater also poses threat to water resources human health. Catalytic wet-air oxidation (CWAO) is one most economical environmentally friendly technologies, especially for treatment toxic non-biodegradable pollutants in wastewater. Various heterogeneous catalysts have been reported use treatment; however, these are effective only under high temperatures pressures. The increasing demand removal necessitates development low-temperature, high-efficiency CWAO technology. To achieve this, ability catalyst activate O

Language: Английский

Titanium Dioxide as the Most Used Photocatalyst for Water Purification: An Overview DOI Open Access
Sanja J. Armaković, Maria M. Savanović, Stevan Armaković

et al.

Catalysts, Journal Year: 2022, Volume and Issue: 13(1), P. 26 - 26

Published: Dec. 24, 2022

Titanium dioxide (TiO2), one of the most frequently used materials in general, has emerged as an excellent photocatalytic material for environmental applications. In this review, principles and mechanisms activity TiO2 have been analyzed. Structural physical specificities nanoparticles, such morphology, crystal structure, electronic optical properties, considered context A review influence several factors, type dimensions photocatalyst particles, pH solution, oxidants/electron acceptors, light intensity on properties TiO2, provided. Superhydrophilicity intrinsic property surface was discussed through reconstruction during reversible hydrophilic changes. Additionally, attention paid to improving particles aggregation agglomeration.

Language: Английский

Citations

153
Efficient removal of tetracycline, ciprofloxacin, and amoxicillin by novel magnetic chitosan/microalgae biocomposites DOI Creative Commons
Shabnam Mirizadeh,

Carlo Solisio,

Attílio Converti

et al.

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 329, P. 125115 - 125115

Published: Sept. 18, 2023

Two new highly-efficient and eco-friendly biosorbents comprised of magnetite, chitosan Chlorella vulgaris (MCC) or Arthrospira platensis (MCA) were prepared in such a way to be easily separated reused for removing different classes antibiotics as tetracycline (TC), ciprofloxacin (CIP) amoxicillin (AMX) from wastewater. They characterized using SEM, FTIR TGA. Biosorption experiments performed investigate the impact pH, biosorbent dosage, initial antibiotic concentration, contact time, concentration background electrolytes (NaCl, KCl CaCl2) on adsorption. Both biocomposites showed outstanding performance removal. Equilibrium data modelled Langmuir, Freundlich, Temkin, Dubinin-Radushkevich adsorption isotherms, among which first one gave best fit, with maximum TC, CIP AMX capacities 834.0, 394.9, 150.8 mg/g MCA 831.1, 374.2, 140.2 MCC, respectively. To follow time-evolution, pseudo-first-order, pseudo-second-order intraparticle diffusion kinetic models tested, second proved best-fitting one. Thermodynamic parameters revealed that was spontaneous endothermic. regenerated through microwave-assisted treatment repeatedly up four cycles, losing at equilibrium by no >7, 4 9 %, This study suggests both may effective sustainable alternatives commercial adsorbents

Language: Английский

Citations

45
In situ growth of an ultrathin Cu/g-C3N4 coating over SBA-15 for catalytic wet air oxidation of pollutants under extremely mild conditions DOI
Chao Yuan, Yuan Zhang, Zhiyuan Zong

et al.

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(11), P. 6601 - 6615

Published: Jan. 1, 2024

Catalytic wet air oxidation (CWAO) is a very promising technology for the elimination of various refractory pollutants, but to activate dioxygen under mild conditions great challenge.

Language: Английский

Citations

6
Degradation of dyeing wastewater by sodium persulfate activated with Fe@MXene DOI
Dawu Shu, Wanxin Li,

Shaolei Cao

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 114263 - 114263

Published: Sept. 1, 2024

Language: Английский

Citations

5
High Performance Ru-CNx/CeO2 Catalyst for Catalytic Wet Oxidation of N-Methyldiethanolamine in Water DOI Open Access

Y. B. Han,

Yuchuan Ye, Wanjin Yu

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(10), P. 4358 - 4358

Published: May 12, 2025

The synthesis of high performance catalysts for the catalytic wet oxidation (CWO) N-methyldiethanolamine (MDEA) in water remains a challenge, and is topic considerable importance relation to sustainability. In this paper, Ru-CNx/CeO2 catalyst was synthesized through modified impregnation process CWO MDEA, exhibiting activity 80% COD removal at 180 °C 2.5 MPa. EPR, Raman, XPS characterizations revealed that CNx species facilitated reduction Ru4+ Ru0 enhanced Ru–Ce interaction form high-density Ru-O-Ce structure with Ce3+ sites, which strongly correlate generation oxygen vacancies. vacancies enabled adsorption activation oxygen, generating active (h+, ·O2−, ·OH) effectively oxidized MDEA during reaction.

Language: Английский

Citations

0
Treatment of Organics in Wastewater Using Electrogenerated Gaseous Oxidants DOI Creative Commons
Leticia Mirella da Silva, Ismael F. Mena, Cristina Saéz

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(15), P. 6512 - 6520

Published: April 9, 2024

This work focuses on the comparison of performance direct electrochemical oxidation with indirect electrolysis mediated by gaseous oxidants in treatment diluted wastewater. To do this, energy consumptions using mixed metal oxide (MMO) electrodes are compared those required for production and use chlorine dioxide degradation methomyl contained aqueous solutions. Results demonstrate feasibility process that this is competitive oxidation. The produced under optimized conditions same anodic material applied organics, thus avoiding efficiency losses associated mass transfer limitations dilute organic Thus, ClO2 oxidant, a concentration 0.1 mM from solution containing 500 mL completely removed an consumption as low 50 Wh. application to electrolytic treating wastewater can only reach less than half removal. These findings may have very important technology achieve remediation persistent pollutants wastewater, where their concentrations typically make processes inefficient.

Language: Английский

Citations

2
Preparation of ZIF-67 derived Co3O4 composite non-homogeneous catalysts with cerium oxide for the efficient degradation of Rhodamine B DOI

Tong Lin,

Xiang Dong, Zhenxiang Li

et al.

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 170, P. 113132 - 113132

Published: Sept. 7, 2024

Language: Английский

Citations

1
Exploring the Influence of CeTiOx Morphology on Wet Catalytic Oxidation Performance of Phenol over the Ru-Based Catalyst DOI
Qing Zhang,

Rongji Cui,

Jun Wu

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 30, 2024

Language: Английский

Citations

1
Use of Zero-Discharge Technology to Recycle Salt in Desulfurization Wastewater DOI

Mingjie Qiu,

Jin Liu,

Qiang Xie

et al.

Journal of Environmental Engineering, Journal Year: 2023, Volume and Issue: 149(5)

Published: Feb. 21, 2023

As a series of laws and regulations governing the water drainage in coal-fired power plants have been implemented China, discharge requirements desulfurization wastewater from are becoming increasingly stringent. Conventional treatment can no longer satisfy needs current zero-discharge policy. It is imperative to develop advanced technology. Low-temperature flue gas waste heat concentration technology, low-cost has attracted wide attention industry. When concentrated nearly 8–15 times, chloride ions be increased 240 g/mL. Moreover, strong acidity, pH 1.0–2.0. The effective use this liquid key success low-temperature Accordingly, study suggests that compound purifying agent polymeric ferric (PFC) sulfate (PFS) prepared through reaction high-chlorine with red mud, PFC PFS synergistic effect on purification. purifiers outperform or polyaluminum (PAFS) selectivity, sensitivity, cost-effectiveness. Water purifier preparation experiments flocculating comparison were performed. resource utilization salt was achieved liquid. This technical route provides novel insight into reasonable transfer water-purifying agents.

Language: Английский

Citations

1
Oxygen activation and transfer for catalytic wet-air oxidation of wastewater: a short review DOI Creative Commons
Pengfei Ma, Nuowei Zhang, Jing Shi

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(50), P. 37618 - 37627

Published: Jan. 1, 2024

With the rapid growth of population and industrial production, wastewater pollution has become a major environmental issue. Wastewater also poses threat to water resources human health. Catalytic wet-air oxidation (CWAO) is one most economical environmentally friendly technologies, especially for treatment toxic non-biodegradable pollutants in wastewater. Various heterogeneous catalysts have been reported use treatment; however, these are effective only under high temperatures pressures. The increasing demand removal necessitates development low-temperature, high-efficiency CWAO technology. To achieve this, ability catalyst activate O

Language: Английский

Citations

0