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Which one of the P25 TiO2 and the ZnO is more suitable...
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+ Contaminants
+ Zinc oxide nanoparticles
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Ken McCarthy
Which one of the P25 TiO2 and the ZnO is more suitable...
Thank you very much.
Recently, finally I considered coating Panatetra ZnO with TiO2 nano layer to solve ZnO dissolution problem. This will not only maintain photocatalist activity but also making the final photocatalist composite material ZnO/TiO2 recovery process easier.
Recently, finally I considered coating Panatetra ZnO with TiO2 nano layer to solve ZnO dissolution problem. This will not only maintain photocatalist activity but also making the final photocatalist composite material ZnO/TiO2 recovery process easier.
As some literature suggest that ZnO is better than TiO2. which is contrary to some of the above comments. In fact TiO2 does not get desolved in water but the TiO2 get less affective for its photo catalyst activity due to the fact that its surface gets some layer grown on it? Interestingly, however, 1. Both the TiO2 and the ZnO are already in use in tooth paste and many other products. 2. A little amount of Zn is said to be needed for human body functioning? Some reports say that body has no biological system to store the necessary Zn for body functioning and hence requires to consume on daily basis. Therefore, it will be appreciated if some review articles are introduced to conclude which one or both are preferable or not and why? (considering cost matter is neglected). If there is any expert in the field who may be specific for reliable information & comments on this field. I specially want to know whether TiO2 and/or ZnO are permitted or not for their use to realize the photo catalyst property based water purification system? Are there any national or international norms for letting these photo catalysts use or not to realize a photo catalyst based water purifier?. Thanks a lot in anticipation.
As some literature suggest that ZnO is better than TiO2. which is contrary to some of the above comments. In fact TiO2 does not get desolved in water but the TiO2 get less affective for its photo catalyst activity due to the fact that its surface gets some layer grown on it? Interestingly, however, 1. Both the TiO2 and the ZnO are already in use in tooth paste and many other products. 2. A little amount of Zn is said to be needed for human body functioning? Some reports say that body has no biological system to store the necessary Zn for body functioning and hence requires to consume on daily basis. Therefore, it will be appreciated if some review articles are introduced to conclude which one or both are preferable or not and why? (considering cost matter is neglected). If there is any expert in the field who may be specific for reliable information & comments on this field. I specially want to know whether TiO2 and/or ZnO are permitted or not for their use to realize the photo catalyst property based water purification system? Are there any national or international norms for letting these photo catalysts use or not to realize a photo catalyst based water purifier?. Thanks a lot in anticipation.
You may find these articles helpful to your research as they provide a review about the recent advancements in the application of nanoparticles for water/contaminated water/ wastewater treatment.
You may find these articles helpful to your research as they provide a review about the recent advancements in the application of nanoparticles for water/contaminated water/ wastewater treatment.
I think ZnO is more efficient and cost effective. But I think you have to think in doping for ZnO especially using Silver . Silver is plasmonic element it you want and additional discussion you can call me
I think ZnO is more efficient and cost effective. But I think you have to think in doping for ZnO especially using Silver . Silver is plasmonic element it you want and additional discussion you can call me
It's maybe too late to look at my answer, but I suggest others to read this mini review of your compatriot colleagues: Photocatalytic Oxidation of Pollutant Dyes in Wastewater by TiO2 and ZnO nano-materials – A Mini-review KUNAL MONDAL, and ASHUTOSH SHARMA According to this mini review, Photocatalytic decomposition with ZnO and TiO2 catalysts is mainly applied for treating organic contaminants dyes in wastewater because of their ability to attain fully mineralization of the organic contaminants under mild reaction conditions such as ambient pressure and temperature. Most recently, photocatalytic degradation of organic molecules using TiO2 and ZnO have been studied extensively due to the degradation of persistent organic pollutants, PAH (Polycyclic Aromatic Hydrocarbons) dyes and other organic chemicals which are known to be endocrine disruptors. Particularly, titanium dioxide is largely used for many applications such as air and water purification, as an agent for antifogging and self-cleaning surface, whereas, zinc oxide has not been used like TiO2 for such applications. TiO2 has better photochemical stability than ZnO in aqueous solution; however, zinc-oxide is photochemically more active (although its surface to volume ratio was less). TiO2 and ZnO have been recommended to be efficient photocatalysts for the degradation and mineralisation of various toxic organic pollutants such as azo dyes in wastewater water. ChapterPhotocatalytic Oxidation of Pollutant Dyes in Wastewater by ...
It's maybe too late to look at my answer, but I suggest others to read this mini review of your compatriot colleagues: Photocatalytic Oxidation of Pollutant Dyes in Wastewater by TiO2 and ZnO nano-materials – A Mini-review KUNAL MONDAL, and ASHUTOSH SHARMA According to this mini review, Photocatalytic decomposition with ZnO and TiO2 catalysts is mainly applied for treating organic contaminants dyes in wastewater because of their ability to attain fully mineralization of the organic contaminants under mild reaction conditions such as ambient pressure and temperature. Most recently, photocatalytic degradation of organic molecules using TiO2 and ZnO have been studied extensively due to the degradation of persistent organic pollutants, PAH (Polycyclic Aromatic Hydrocarbons) dyes and other organic chemicals which are known to be endocrine disruptors. Particularly, titanium dioxide is largely used for many applications such as air and water purification, as an agent for antifogging and self-cleaning surface, whereas, zinc oxide has not been used like TiO2 for such applications. TiO2 has better photochemical stability than ZnO in aqueous solution; however, zinc-oxide is photochemically more active (although its surface to volume ratio was less). TiO2 and ZnO have been recommended to be efficient photocatalysts for the degradation and mineralisation of various toxic organic pollutants such as azo dyes in wastewater water. ChapterPhotocatalytic Oxidation of Pollutant Dyes in Wastewater by ...
Thank you very much.
Recently, finally I considered coating Panatetra ZnO with TiO2 nano layer to solve ZnO dissolution problem. This will not only maintain photocatalist activity but also making the final photocatalist composite material ZnO/TiO2 recovery process easier.
Thank you very much.
Recently, finally I considered coating Panatetra ZnO with TiO2 nano layer to solve ZnO dissolution problem. This will not only maintain photocatalist activity but also making the final photocatalist composite material ZnO/TiO2 recovery process easier.
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P25 is more suitable for organic dye and if you want to degrade some other dyes like acid black 5 etc than ZnO is more efficient
P25 is more suitable for organic dye and if you want to degrade some other dyes like acid black 5 etc than ZnO is more efficient
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Agree with Sanjeev Gupta
regards
Agree with Sanjeev Gupta
regards
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As some literature suggest that ZnO is better than TiO2. which is contrary to some of the above comments.
In fact TiO2 does not get desolved in water but the TiO2 get less affective for its photo catalyst activity due to the fact that its surface gets some layer grown on it?
Interestingly, however,
1. Both the TiO2 and the ZnO are already in use in tooth paste and many other products.
2. A little amount of Zn is said to be needed for human body functioning? Some reports say that body has no biological system to store the necessary Zn for body functioning and hence requires to consume on daily basis.
Therefore, it will be appreciated if some review articles are introduced to conclude which one or both are preferable or not and why? (considering cost matter is neglected).
If there is any expert in the field who may be specific for reliable information & comments on this field.
I specially want to know whether TiO2 and/or ZnO are permitted or not for their use to realize the photo catalyst property based water purification system?
Are there any national or international norms for letting these photo catalysts use or not to realize a photo catalyst based water purifier?.
Thanks a lot in anticipation.
As some literature suggest that ZnO is better than TiO2. which is contrary to some of the above comments.
In fact TiO2 does not get desolved in water but the TiO2 get less affective for its photo catalyst activity due to the fact that its surface gets some layer grown on it?
Interestingly, however,
1. Both the TiO2 and the ZnO are already in use in tooth paste and many other products.
2. A little amount of Zn is said to be needed for human body functioning? Some reports say that body has no biological system to store the necessary Zn for body functioning and hence requires to consume on daily basis.
Therefore, it will be appreciated if some review articles are introduced to conclude which one or both are preferable or not and why? (considering cost matter is neglected).
If there is any expert in the field who may be specific for reliable information & comments on this field.
I specially want to know whether TiO2 and/or ZnO are permitted or not for their use to realize the photo catalyst property based water purification system?
Are there any national or international norms for letting these photo catalysts use or not to realize a photo catalyst based water purifier?.
Thanks a lot in anticipation.
More
VOTE
Dear Mr Ali Johar, Thank you for your valuable comment. Warm regards, B.P.Singh
Dear Mr Ali Johar, Thank you for your valuable comment. Warm regards, B.P.Singh
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VOTE
You may find these articles helpful to your research as they provide a review about the recent advancements in the application of nanoparticles for water/contaminated water/ wastewater treatment.
- Potential of Magnetic Nanoferrites in Removal of Heavy Metals from Contaminated Water: Mini Review. https://doi.org/10.1007/s10948-020-05657-1
- Recent advances in synthesis, characterization, and applications of nanoparticles for contaminated water treatment- A review. https://doi.org/10.1016/j.ceramint.2020.09.050
Thanks and Regards. Feel free to contact me if you need to.You may find these articles helpful to your research as they provide a review about the recent advancements in the application of nanoparticles for water/contaminated water/ wastewater treatment.
- Potential of Magnetic Nanoferrites in Removal of Heavy Metals from Contaminated Water: Mini Review. https://doi.org/10.1007/s10948-020-05657-1
- Recent advances in synthesis, characterization, and applications of nanoparticles for contaminated water treatment- A review. https://doi.org/10.1016/j.ceramint.2020.09.050
Thanks and Regards. Feel free to contact me if you need to.More
VOTE
I think ZnO is more efficient and cost effective. But I think you have to think in doping for ZnO especially using Silver . Silver is plasmonic element it you want and additional discussion you can call me
I think ZnO is more efficient and cost effective. But I think you have to think in doping for ZnO especially using Silver . Silver is plasmonic element it you want and additional discussion you can call me
More
VOTE
It's maybe too late to look at my answer, but I suggest others to read this mini review of your compatriot colleagues:
Photocatalytic Oxidation of Pollutant Dyes in Wastewater by TiO2 and ZnO nano-materials – A Mini-review
KUNAL MONDAL, and ASHUTOSH SHARMA
According to this mini review, Photocatalytic decomposition with ZnO and TiO2 catalysts is mainly applied for treating organic contaminants dyes in wastewater because of their ability to attain fully mineralization of the organic contaminants under mild reaction conditions such as ambient pressure and temperature. Most recently, photocatalytic degradation of organic molecules using TiO2 and ZnO have been studied extensively due to the degradation of persistent organic pollutants, PAH (Polycyclic Aromatic Hydrocarbons) dyes and other organic chemicals which are known to be endocrine disruptors.
Particularly, titanium dioxide is largely used for many applications such as air and water purification, as an agent for antifogging and self-cleaning surface, whereas, zinc oxide has not been used like TiO2 for such applications. TiO2 has better photochemical stability than ZnO in aqueous solution; however, zinc-oxide is photochemically more active (although its surface to volume ratio was less). TiO2 and ZnO have been recommended to be efficient photocatalysts for the degradation and mineralisation of various toxic organic pollutants such as azo dyes in wastewater water.
Chapter Photocatalytic Oxidation of Pollutant Dyes in Wastewater by ...
It's maybe too late to look at my answer, but I suggest others to read this mini review of your compatriot colleagues:
Photocatalytic Oxidation of Pollutant Dyes in Wastewater by TiO2 and ZnO nano-materials – A Mini-review
KUNAL MONDAL, and ASHUTOSH SHARMA
According to this mini review, Photocatalytic decomposition with ZnO and TiO2 catalysts is mainly applied for treating organic contaminants dyes in wastewater because of their ability to attain fully mineralization of the organic contaminants under mild reaction conditions such as ambient pressure and temperature. Most recently, photocatalytic degradation of organic molecules using TiO2 and ZnO have been studied extensively due to the degradation of persistent organic pollutants, PAH (Polycyclic Aromatic Hydrocarbons) dyes and other organic chemicals which are known to be endocrine disruptors.
Particularly, titanium dioxide is largely used for many applications such as air and water purification, as an agent for antifogging and self-cleaning surface, whereas, zinc oxide has not been used like TiO2 for such applications. TiO2 has better photochemical stability than ZnO in aqueous solution; however, zinc-oxide is photochemically more active (although its surface to volume ratio was less). TiO2 and ZnO have been recommended to be efficient photocatalysts for the degradation and mineralisation of various toxic organic pollutants such as azo dyes in wastewater water.
Chapter Photocatalytic Oxidation of Pollutant Dyes in Wastewater by ...
More
VOTE
agree with @Zhaohui Wang
regards
agree with @Zhaohui Wang
regards
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I think ZnO NPs is too difficult to dissolving in water but in case of QD ZnO it can be dissolving easily using ultrasonication
I think ZnO NPs is too difficult to dissolving in water but in case of QD ZnO it can be dissolving easily using ultrasonication
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