Mian Hussain Shah, Saima Sadiq, Umar Wahab, Inam Ullah, Sardar Hussain, Nasr Ullah, Safiullah Khan, Zaffar Iqbal, Muhammad Ismail, Aadil Nabi Chishti, Muhammad Sadiq
{"title":"锡铂掺杂及共掺杂对氧化锆光催化降解酸性黄76效率的影响研究","authors":"Mian Hussain Shah, Saima Sadiq, Umar Wahab, Inam Ullah, Sardar Hussain, Nasr Ullah, Safiullah Khan, Zaffar Iqbal, Muhammad Ismail, Aadil Nabi Chishti, Muhammad Sadiq","doi":"10.1007/s11270-025-08397-x","DOIUrl":null,"url":null,"abstract":"<div><p>Monoclinic zirconia (ZrO<sub>2</sub>) and Sn/Pt doped or co-doped zirconia (Pt@ZrO<sub>2</sub>, Sn@ZrO<sub>2</sub>, Sn/Pt@ZrO<sub>2</sub>) were prepared through a microwave-assisted protocol. The synthesized materials were characterized and tested for their ability to degrade Acid Yellow 76 (AY-76) under UV (blue) and visible (green) light. TEM and HRTEM analysis were performed to investigate particle size, lattice spacing and elemental mapping. It was observed that lattice fringes of ZrO<sub>2</sub> show alteration by incorporation of metals (Sn, Pt and both) due to defect phenomena, which is responsible for enhancing photocatalysis. SEM micrographs showed that ZrO<sub>2</sub> particles has a smooth morphology. Fluctuation in the rate of photo-degradation of AY-76 with different reaction parameters were investigated. The results indicated that, under optimal reaction conditions; substrate solution (10 mL), concentration (10 ppm), catalyst (0.15 g), pH (6–8), oxidant (H<sub>2</sub>O<sub>2</sub>: 2 mL), stirring (1200 rpm), time (90 min) and temperature 333 K, Sn/Pt@ZrO<sub>2</sub> demonstrated excellent photocatalytic activity towards AY-76 degradation. Experimental data showed best fit to first order kinetic model (R<sup>2</sup> = 0.9422) with apparent rate constant 2.3 × 10<sup>–3</sup> min<sup>−1</sup>. Furthermore, DFT simulations and experiments confirmed the reduction in the band gap energy (E<sub>g</sub>) of ZrO<sub>2</sub> with doping of Sn and Pt, which enhanced its photocatalytic activity. Overall, the findings offer insight into the potential use of synthesized catalysts as a more effective alternative to prevailing wastewater treatment processes.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 12","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigating the Effect of Sn and Pt Doping and Co-doping on the Photocatalytic Efficiency of Zirconia for Degradation of Acid Yellow-76\",\"authors\":\"Mian Hussain Shah, Saima Sadiq, Umar Wahab, Inam Ullah, Sardar Hussain, Nasr Ullah, Safiullah Khan, Zaffar Iqbal, Muhammad Ismail, Aadil Nabi Chishti, Muhammad Sadiq\",\"doi\":\"10.1007/s11270-025-08397-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Monoclinic zirconia (ZrO<sub>2</sub>) and Sn/Pt doped or co-doped zirconia (Pt@ZrO<sub>2</sub>, Sn@ZrO<sub>2</sub>, Sn/Pt@ZrO<sub>2</sub>) were prepared through a microwave-assisted protocol. The synthesized materials were characterized and tested for their ability to degrade Acid Yellow 76 (AY-76) under UV (blue) and visible (green) light. TEM and HRTEM analysis were performed to investigate particle size, lattice spacing and elemental mapping. It was observed that lattice fringes of ZrO<sub>2</sub> show alteration by incorporation of metals (Sn, Pt and both) due to defect phenomena, which is responsible for enhancing photocatalysis. SEM micrographs showed that ZrO<sub>2</sub> particles has a smooth morphology. Fluctuation in the rate of photo-degradation of AY-76 with different reaction parameters were investigated. The results indicated that, under optimal reaction conditions; substrate solution (10 mL), concentration (10 ppm), catalyst (0.15 g), pH (6–8), oxidant (H<sub>2</sub>O<sub>2</sub>: 2 mL), stirring (1200 rpm), time (90 min) and temperature 333 K, Sn/Pt@ZrO<sub>2</sub> demonstrated excellent photocatalytic activity towards AY-76 degradation. Experimental data showed best fit to first order kinetic model (R<sup>2</sup> = 0.9422) with apparent rate constant 2.3 × 10<sup>–3</sup> min<sup>−1</sup>. Furthermore, DFT simulations and experiments confirmed the reduction in the band gap energy (E<sub>g</sub>) of ZrO<sub>2</sub> with doping of Sn and Pt, which enhanced its photocatalytic activity. 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Investigating the Effect of Sn and Pt Doping and Co-doping on the Photocatalytic Efficiency of Zirconia for Degradation of Acid Yellow-76
Monoclinic zirconia (ZrO2) and Sn/Pt doped or co-doped zirconia (Pt@ZrO2, Sn@ZrO2, Sn/Pt@ZrO2) were prepared through a microwave-assisted protocol. The synthesized materials were characterized and tested for their ability to degrade Acid Yellow 76 (AY-76) under UV (blue) and visible (green) light. TEM and HRTEM analysis were performed to investigate particle size, lattice spacing and elemental mapping. It was observed that lattice fringes of ZrO2 show alteration by incorporation of metals (Sn, Pt and both) due to defect phenomena, which is responsible for enhancing photocatalysis. SEM micrographs showed that ZrO2 particles has a smooth morphology. Fluctuation in the rate of photo-degradation of AY-76 with different reaction parameters were investigated. The results indicated that, under optimal reaction conditions; substrate solution (10 mL), concentration (10 ppm), catalyst (0.15 g), pH (6–8), oxidant (H2O2: 2 mL), stirring (1200 rpm), time (90 min) and temperature 333 K, Sn/Pt@ZrO2 demonstrated excellent photocatalytic activity towards AY-76 degradation. Experimental data showed best fit to first order kinetic model (R2 = 0.9422) with apparent rate constant 2.3 × 10–3 min−1. Furthermore, DFT simulations and experiments confirmed the reduction in the band gap energy (Eg) of ZrO2 with doping of Sn and Pt, which enhanced its photocatalytic activity. Overall, the findings offer insight into the potential use of synthesized catalysts as a more effective alternative to prevailing wastewater treatment processes.
期刊介绍：
Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments.
Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation.
Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.
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