Photodegradation of Linuron on Titania and Zinc Oxide PDF Download
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Author:
Publisher:
ISBN:
Category : Titanium
Languages : en
Pages : 232
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Book Description
Degradation of linuron (N-(3, 4-dichlorophenyl)-N'-methoxy-N'-methylurea), which is a harmful phenylurea herbicide commonly found as residue in water , was conducted via heterogeneous photocatalysis on commercial and synthesized titanium dioxide (TiO2) and commercial and synthesized zinc oxide (ZnO). Nanoparticles of the photocatalysts were synthesized via the sol-gel method. The photocatalytic degradation of 10-ppm linuron aqueous solution was conducted in a batch photo-reactor. Concentration of linuron was periodically monitored using high performance liquid chromatography (HPLC) with 254-nm UV detector. The decrease of total organic carbon as a result of mineralization of linuron was also observed during the degradation process.
Author:
Publisher:
ISBN:
Category : Titanium
Languages : en
Pages : 232
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Book Description
Degradation of linuron (N-(3, 4-dichlorophenyl)-N'-methoxy-N'-methylurea), which is a harmful phenylurea herbicide commonly found as residue in water , was conducted via heterogeneous photocatalysis on commercial and synthesized titanium dioxide (TiO2) and commercial and synthesized zinc oxide (ZnO). Nanoparticles of the photocatalysts were synthesized via the sol-gel method. The photocatalytic degradation of 10-ppm linuron aqueous solution was conducted in a batch photo-reactor. Concentration of linuron was periodically monitored using high performance liquid chromatography (HPLC) with 254-nm UV detector. The decrease of total organic carbon as a result of mineralization of linuron was also observed during the degradation process.
Author:
Publisher:
ISBN:
Category : Diuron
Languages : en
Pages : 300
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Book Description
Photocatalytic degradation of diuron was investigated in the presence of zinc oxide and titanium dioxide as photocatalysts. The photocatalysts were synthesized via sol-gel method with an addition of ammonia at the content of 0%, 7%, and 28% by mass. The powder obtained was characterized by various techniques. The photocatalytic degradation of 10 ppm diuron aqueous solution was conducted in a batch photo-reactor. The solution was periodically sampled to monitor the concentration of diuron via HPLC. The decrease of total organic carbon as a result of mineralization of diuron was also observed during the degradation process. It is found that the activity of photocatalysts increase when the ammonia content is increased. Zinc oxide has higher performance in degradation and mineralization of diuron than titanium dioxide, regardless of much lower surface area. The degradation of diuron on zinc oxide is about 98% within 6 hours, while that achieved on titanium dioxide is only 45%. The degradation generated several intermediates. The intermediates species were identified by LC-MS. Degradation of diuron produces different degradation products depending on pH of the solution, wavelength of UV-radiation, and type of photocatalyst. Several degradation intermediates are generated by reactions of hydroxyl radical attacking to several sites of diuron structure during the photocatalytic degradation process.
Author: Mariami Alisa Sharifuddin
Publisher:
ISBN:
Category :
Languages : en
Pages : 58
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Book Description
Author: Chooi Yan Lee
Publisher:
ISBN:
Category : Photochemistry
Languages : en
Pages : 55
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Book Description
Author: Noor Farhana Omar
Publisher:
ISBN:
Category : Photochemistry
Languages : en
Pages : 46
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Author: Kar Wai Pon
Publisher:
ISBN:
Category :
Languages : en
Pages : 80
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Author: Ruoh Chyang Tang
Publisher:
ISBN:
Category :
Languages : en
Pages : 62
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Author: Boon Siew Ooi
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 51
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Author:
Publisher:
ISBN: 9789741420384
Category : Biodegradation
Languages : en
Pages : 312
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Book Description
Author: Magnus Ågren
Publisher: Woodhead Publishing
ISBN: 0081006063
Category : Technology & Engineering
Languages : en
Pages : 544
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Book Description
Wound Healing Biomaterials: Volume Two, Functional Biomaterials discusses the types of wounds associated with trauma, illness, or surgery that can sometimes be extremely complex and difficult to heal. Consequently, there is a prominent drive for scientists and clinicians to find methods to heal wounds opening up a new area of research in biomaterials and the ways they can be applied to the challenges associated with wound care. Much research is now concerned with new therapies, regeneration methods, and the use of biomaterials that can assist in wound healing and alter healing responses. This book provides readers with a thorough review of the functional biomaterials used for wound healing, with chapters discussing the fundamentals of wound healing biomaterials, films for wound healing applications, polymer-based dressing for wound healing applications, and functional dressings for wound care. - Includes more systematic and comprehensive coverage on the topic of wound care - Provides thorough coverage of all specific therapies and biomaterials for wound healing - Contains clear layout and organization that is carefully arranged with clear titles and comprehensive section headings - Details specific sections on the fundamentals of wound healing biomaterials, films for wound healing applications, polymer-based dressing for wound healing applications, and more
