Combined factors influencing the surface charge and aggregation behaviors of TiO2 nanoparticles in the presence of humic acid and UV irradiation

The photochemical decomposition of phenol with the participation of TiO2 nano-particles and ethyl-3,3,5,5-tetraciano-2-hydroxide-2-metil-4,6-diphenyl cyclohexane carboxylate by UV spectroscopy was studied for the first time. It has been shown, that UV irradiation of this mixture during 1 hour brings to 52% decomposition of phenol

Download Full-text

Photocatalytic Degradation of Humic Acid Using Ti/Anodized TiO2 Metal Plate with Fe-Doping

Materials Science Forum ◽

10.4028/www.scientific.net/msf.724.33 ◽

2012 ◽

Vol 724 ◽

pp. 33-36 ◽

Cited By ~ 1

Author(s):

Jong Oh Kim ◽

Seung Pil Choi ◽

Geon Tae Kim ◽

Yong Hak Kim

Keyword(s):

Humic Acid ◽

Photocatalytic Degradation ◽

Surface Area ◽

Acid Concentration ◽

Uv Irradiation ◽

Metal Plate ◽

Fe Doping ◽

Treatment Efficiency ◽

Acid Degradation ◽

Hypochromic Effect

We evaluated the treatment efficiency of humic acid using Ti and anodized TiO2metal plate with/without Fe-doping. Variation of humic acid concentration after 60 minutes of UV irradiation in the case of Ti only, Fe-Ti, TiO2only and Fe-TiO2was about 3.0%, 5.5%, 9.8% and 9.2%, respectively. . It is found that hypochromic effect was revealed in all cases with respect to doping time. Fe doping method is considered to be effective for humic acid degradation in spite of relatively low surface area of Ti and anodized TiO2metal plate.

Download Full-text

Influence Factors of Enhanced Photosensitized Degradation of PAHs on Soil Surface Using Humic Acid under UV Irradiation

Polycyclic Aromatic Compounds ◽

10.1080/10406638.2019.1695218 ◽

2019 ◽

pp. 1-10

Author(s):

Xuekai Sun ◽

Jie Bai ◽

Dianbo Dong

Keyword(s):

Humic Acid ◽

Uv Irradiation ◽

Influence Factors ◽

Soil Surface

Download Full-text

Oxidative stress caused by TiO2 nanoparticles under UV irradiation is due to UV irradiation not through nanoparticles

Chemico-Biological Interactions ◽

10.1016/j.cbi.2018.08.017 ◽

2018 ◽

Vol 294 ◽

pp. 144-150 ◽

Cited By ~ 4

Author(s):

Akihiro Moriyama ◽

Ikuho Yamada ◽

Junko Takahashi ◽

Hitoshi Iwahashi

Keyword(s):

Oxidative Stress ◽

Tio2 Nanoparticles ◽

Uv Irradiation

Download Full-text

Peat humic acid properties and factors influencing their variability in a temperate bog ecosystem

Estonian Journal of Ecology ◽

10.3176/eco.2013.1.04 ◽

2013 ◽

Vol 62 (1) ◽

pp. 35 ◽

Cited By ~ 6

Author(s):

M Klavins ◽

O Purmalis ◽

V Rodinov

Keyword(s):

Humic Acid ◽

Acid Properties ◽

Factors Influencing

Download Full-text

Factors influencing the dechlorination of 2,4-dichlorophenol by Ni–Fe nanoparticles in the presence of humic acid

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2008.09.080 ◽

2009 ◽

Vol 165 (1-3) ◽

pp. 78-86 ◽

Cited By ~ 78

Author(s):

Zhen Zhang ◽

Naman Cissoko ◽

Jingjing Wo ◽

Xinhua Xu

Keyword(s):

Humic Acid ◽

Factors Influencing ◽

Fe Nanoparticles

Download Full-text

The Kinetics and Activation Energy of Photocatalytic Degradation of Phenol by TiO2 and TiO2/ PANI Photocatalyst under UV Irradiation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.430-432.57 ◽

2012 ◽

Vol 430-432 ◽

pp. 57-60

Author(s):

Xue Yan Li ◽

Qing Zhi Luo ◽

Jing An ◽

De Song Wang

Keyword(s):

Activation Energy ◽

Photocatalytic Degradation ◽

Apparent Activation Energy ◽

Tio2 Nanoparticles ◽

Uv Irradiation ◽

Zero Order ◽

Zero Order Kinetics ◽

Catalytically Active ◽

Kinetics And Activation Energy

The kinetics and activation energy of photocatalytic degradation of phenol has been studied using the catalytically active TiO2 and PANI modified TiO2 nanoparticles. The reaction follows a pseudo-zero-order kinetics. Apparent activation energy of phenol photocatalytic degradation in water was 13.76kJ/mol by TiO2 and was 12.31kJ/mol by TiO2/PANI.

Download Full-text