Synthesis, characterization, and photocatalytic activity of co-doped Ag–, Mg–TiO<sub>2</sub>-P25 by photodeposition and impregnation methods

Talat-Mehrabad, Jila; Khosravi, Morteza; Modirshahla, Nasser; Behnajady, Mohammad A.

doi:10.1080/19443994.2015.1036780

Cited by 17 publications

(7 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The energy bandgap from Fe-Ni/TiO 2 is estimated from 2.41 to 2.56 eV, depending on the Fe/Ni ratio. Talat-Mehrabad et al [ 149 ] reported that TiO 2 photocatalysts doped with Ag-Mg prepared by the photodeposition and impregnation methods had a narrower energy band than single doped photocatalysts. Besides, the TiO 2 Ag-Mg photocatalyst absorption band also appears to be shifting toward the visible light region.…”

Section: Photocatalytic Technology For Pome Treatmentmentioning

confidence: 99%

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

et al. 2021

View full text Add to dashboard Cite

The palm oil industry produces liquid waste called POME (palm oil mill effluent). POME is stated as one of the wastes that are difficult to handle because of its large production and ineffective treatment. It will disturb the ecosystem with a high organic matter content if the waste is disposed directly into the environment. The authorities have established policies and regulations in the POME waste quality standard before being discharged into the environment. However, at this time, there are still many factories in Indonesia that have not been able to meet the standard of POME waste disposal with the existing treatment technology. Currently, the POME treatment system is still using a conventional system known as an open pond system. Although this process can reduce pollutants’ concentration, it will produce much sludge, requiring a large pond area and a long processing time. To overcome the inability of the conventional system to process POME is believed to be a challenge. Extensive effort is being invested in developing alternative technologies for the POME waste treatment to reduce POME waste safely. Several technologies have been studied, such as anaerobic processes, membrane technology, advanced oxidation processes (AOPs), membrane technology, adsorption, steam reforming, and coagulation. Among other things, an AOP, namely photocatalytic technology, has the potential to treat POME waste. This paper provides information on the feasibility of photocatalytic technology for treating POME waste. Although there are some challenges in this technology’s large-scale application, this paper proposes several strategies and directions to overcome these challenges.

show abstract

Section: Photocatalytic Technology For Pome Treatmentmentioning

confidence: 99%

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

et al. 2021

View full text Add to dashboard Cite

show abstract

“…6(a) and 6(b) depict the N 2 adsorption-desorption isotherms and the pore size distribution for the prepared samples, respectively. According to IUPAC classification, N 2 adsorption-desorption isotherms of the nanoparticles show a type III isotherm which indicates the presence of the mesoporous and macroporous structure [73][74][75][76].…”

Section: Bet Surface Area Analysismentioning

confidence: 99%

Mg and La Co-doped ZnO Nanoparticles Prepared by Sol–gel Method: Synthesis, Characterization and Photocatalytic Activity

Khanizadeh

Khosravi

Behnajady

et al. 2019

Period. Polytech. Chem. Eng.

Self Cite

View full text Add to dashboard Cite

In this study, La and Mg doped, and co-doped ZnO nanoparticles were prepared using the sol-gel method. The prepared samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectroscopy (DRS), and N2 physisorption techniques. The XRD results indicated that the prepared nanoparticles can be well adopted by the hexagonal wurtzite structure crystal and there are no second impurity peaks. Studies of the FESEM, EDX and TEM have shown that the samples have uniform spherical-like morphology with a homogenous distribution. The incorporation of La and Mg into the ZnO lattice had no effect on the morphology of the nanoparticles, but a reduction in the size of the grains (≈ 14 nm to ≈ 7 nm) was observed due to the insertion of these ions. The results of N2 physisorption indicated that there was an increase in BET surface area and pore volume for doped and co-doped samples. The results of DRS showed an increase in band gap energy and a blue shift at the absorption edge for doped and co-doped samples. The photocatalytic activity of the prepared catalysts was evaluated in the removal of RhB under UVA irradiation. The results showed that Mg5%-La5%/ZnO had the highest photoactivity (91.18 %) among all samples.

show abstract

“…Diferent semiconductors and combinations of these are used in heterogeneous photocatalysis process to remove and degrade organic compounds from aqueous solutions [13]. Some of the semiconductors commonly evaluated are TiO 2 , CdS, ZnS, Fe 2 O 3 , Ag/TiO 2 [14]. The TiO 2 is the most widely used semiconductor due to its high eiciency, low cost, low toxicity, and its thermal and electrical properties [14,15].…”

Section: U N C O R R E C T E D P R O O F 1 Introductionmentioning

confidence: 99%

“…Some of the semiconductors commonly evaluated are TiO 2 , CdS, ZnS, Fe 2 O 3 , Ag/TiO 2 [14]. The TiO 2 is the most widely used semiconductor due to its high eiciency, low cost, low toxicity, and its thermal and electrical properties [14,15]. Looking to improve the properties of this semiconductor, certain modiications are usually made to reduce the prohibited band, which is the energy diference between the valence and conduction bands; the energy that must be exceeded to carry out the photocatalytic process.…”

Section: U N C O R R E C T E D P R O O F 1 Introductionmentioning

confidence: 99%

Heterogeneous Photocatalytic Degradation of Ibuprofen Over TiO2–Ag Supported on Activated Carbon from Waste Tire Rubber

et al. 2020

View full text Add to dashboard Cite

Check the metadata sheet to make sure that the header information, especially author names and the corresponding affiliations are correctly shown.• Check the questions that may have arisen during copy editing and insert your answers/ corrections.• Check that the text is complete and that all figures, tables and their legends are included. Also check the accuracy of special characters, equations, and electronic supplementary material if applicable. If necessary refer to the Edited manuscript.• The publication of inaccurate data such as dosages and units can have serious consequences.Please take particular care that all such details are correct.• Please do not make changes that involve only matters of style. We have generally introduced forms that follow the journal's style. Substantial changes in content, e.g., new results, corrected values, title and authorship are not allowed without the approval of the responsible editor. In such a case, please contact the Editorial Office and return his/her consent together with the proof.• If we do not receive your corrections within 48 hours, we will send you a reminder.• Your article will be published Online First approximately one week after receipt of your corrected proofs. This is the official first publication citable with the DOI. Further changes are, therefore, not possible.• The printed version will follow in a forthcoming issue.

show abstract

Synthesis, characterization, and photocatalytic activity of co-doped Ag–, Mg–TiO₂-P25 by photodeposition and impregnation methods

Cited by 17 publications

References 41 publications

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

Mg and La Co-doped ZnO Nanoparticles Prepared by Sol–gel Method: Synthesis, Characterization and Photocatalytic Activity

Heterogeneous Photocatalytic Degradation of Ibuprofen Over TiO2–Ag Supported on Activated Carbon from Waste Tire Rubber

Contact Info

Product

Resources

About

Synthesis, characterization, and photocatalytic activity of co-doped Ag–, Mg–TiO2-P25 by photodeposition and impregnation methods

Cited by 17 publications

References 41 publications

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

Mg and La Co-doped ZnO Nanoparticles Prepared by Sol–gel Method: Synthesis, Characterization and Photocatalytic Activity

Heterogeneous Photocatalytic Degradation of Ibuprofen Over TiO2–Ag Supported on Activated Carbon from Waste Tire Rubber

Contact Info

Product

Resources

About

Synthesis, characterization, and photocatalytic activity of co-doped Ag–, Mg–TiO₂-P25 by photodeposition and impregnation methods