Effects of dissolved organic matter on adsorbed Fe(II) reactivity for the reduction of 2-nitrophenol in TiO2 suspensions

Zhu, Ziyuan; Tao, Liang; Li, Fangbai

doi:10.1016/j.chemosphere.2013.04.053

Cited by 30 publications

(12 citation statements)

References 38 publications

(65 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dissolved organic matter (DOM) is one of the most active compositions in soils, which can affect the transport and decay of soil pollutants, and the availability of soil nutrients (C, N, P, S, etc.) (Liu et al 2013;Zhu et al 2013). In addition, DOM is an important factor to influence soil microbial growth and metabolism, as well as the turnover of soil organic matter (Guppy et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Effects of long-term green manure application on the content and structure of dissolved organic matter in red paddy soil

Gao

Jian

Cao

et al. 2018

Journal of Integrative Agriculture

View full text Add to dashboard Cite

Dissolved organic matter (DOM) plays important roles in soil biogeochemistry activity and nutrients transportation in soils, but studies regarding the long-term effects of green manures on the content and structure of DOM in red paddy soil have not been reported yet. A long-term green manure experiment established in 1982 was utilized to test the DOM contents in different treatments, and the spectral characteristics of DOM were investigated by using ultraviolet-visible (UV-Vis) spectrometry and Fourier transform infrared (FTIR) spectrometry. The experiment included four cropping systems: ricerice-milk vetch (RRV), rice-rice-rape (RRP), rice-rice-ryegrass (RRG) and rice-rice-winter fallow (RRF), among them, milk vetch, rape, and ryegrass are popular winter green manure species in southern China. The results showed that the content of dissolved organic carbon (DOC), which is widely used to estimate the concentration of DOM, was significantly promoted after the incorporation of green manures compared with the other sampling stages. The contents of aromatic groups and the degree of humification of DOM increased in RRV and RRP, suggesting more complex compositions of the soil DOM after long-term application of milk vetch and rape. The contents of phenol, alcohol and carboxylic acid group at the mature stage of early rice were significantly higher than those at the stage of after green manures turned over of green manures, especially for the RRV treatment. The absorption ratio of FTIR indicated that winter plantation of rape increased the aromatic-C/aliphatic-C ratio, and ryegrass increased the aromatic-C/carboxyl-C ratio. In conclusion, long-term planting

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of long-term green manure application on the content and structure of dissolved organic matter in red paddy soil

Gao

Jian

Cao

et al. 2018

Journal of Integrative Agriculture

View full text Add to dashboard Cite

show abstract

“…The decomposition products of plants called as DOM are organic acids, carbohydrates, amino acids, amino sugars (hydrophilic) and lignin-derived, partly aromatic molecules: aromatic phenols, hydrocarbons, fats, and nucleic acids (hydrophobic (Ghernaout, 2014;He et al, 2014;Zhu et al, 2013)). DOM in waters is easy adsorbed onto most particles and surfaces.…”

Section: Introductionmentioning

confidence: 99%

The interactions of UV and/or H2O2 treated CNTOH and CNTCOOH with environmental fulvic acids

Czech

2016

Environmental Research

View full text Add to dashboard Cite

“…Because nitrophenol can cause undesired effects on organisms even when under trace level [7,8], it has been marked as a kind of first priority pollutants by many governments. Many remediation methods, such as adsorption [9], biodegrdation [10], and advanced oxidation process (AOPs) [11][12][13][14][15][16][17], have been applied to remove nitrophenol from aqueous solutions. Most kinds of toxic pollutants, such as organic compounds, metal ions, bacteria, and virus, can be successfully removed using TiO 2 heterogeneous photocatalysis, a typical kind of AOPs, due to the photogenerated electron-hole pair and the subsequently produced reactive oxygen species (ROS) [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Effects of operational parameters on the photodegradation of 2,4-dinitrophenol in TiO2 dispersion

Mao

Shen

et al. 2015

Desalination and Water Treatment

View full text Add to dashboard Cite

2014): Effects of operational parameters on the photodegradation of 2,4-dinitrophenol in TiO 2 dispersion, Desalination and Water Treatment,Photocatalytic degradation of 2,4-dinitrophenol in two commercial TiO 2 (Degussa P25 and Hombikat UV-100) was investigated in this work. The properties of two TiO 2 were systematically studied and described in detail. The observed photoactivity of Degussa P25 was 6-12 times higher than Hombikat UV-100 although the specific surface area of Hombikat UV-100 was 5.7 times more than that of Degussa P25. The photodegradation of 2,4-dinitrophenol was favored at neutral pH in Degussa P25, while its degradation was preferred at pH 3.0 in Hombikat UV-100 dispersion. The observed kinetic constant (k obs ) for the photodegradation of 2,4-dinitrophenol in 20 mg/L humic acid solution was found to be 15% (Degussa P25) and 21% (Hombikat UV-100) of the values obtained from the corresponding pure aquatic solutions. The suppression effects of β-cyclodextrin on the photodegradation of 2,4-dinitrophenol over Degussa P25 (50%) was much more significant than that of Hombikat UV-100 because of the different adsorption behavior of β-cyclodextrin over two TiO 2 . Hydroxyl radical and valance band hole was found to be the predominant reactant during the degradation of 2,4-dinitrophenol using P25 and UV-100, respectively. Formic acid, acetic acid, oxalic acid, and NO À 3 were detected as advanced oxidation products.

show abstract

Effects of dissolved organic matter on adsorbed Fe(II) reactivity for the reduction of 2-nitrophenol in TiO2 suspensions

Cited by 30 publications

References 38 publications

Effects of long-term green manure application on the content and structure of dissolved organic matter in red paddy soil

Effects of long-term green manure application on the content and structure of dissolved organic matter in red paddy soil

The interactions of UV and/or H2O2 treated CNTOH and CNTCOOH with environmental fulvic acids

Effects of operational parameters on the photodegradation of 2,4-dinitrophenol in TiO2 dispersion

Contact Info

Product

Resources

About