Tags

Type your tag names separated by a space and hit enter

Comparative study of diethyl phthalate degradation by UV/H2O2 and UV/TiO2: kinetics, mechanism, and effects of operational parameters.
Environ Sci Pollut Res Int. 2016 Feb; 23(3):2640-50.ES

Abstract

The photodegradation of diethyl phthalate (DEP) by UV/H2O2 and UV/TiO2 is studied. The DEP degradation kinetics and multiple crucial factors effecting the clearance of DEP are investigated, including initial DEP concentration ([DEP]0), initial pH values (pH0), UV light intensity, anions (Cl(-), NO(3-), SO4 (2-), HCO3 (-), and CO3 (2-)), cations (Mg(2+), Ca(2+), Mn(2+), and Fe(3+)), and humic acid (HA). Total organic carbon (TOC) removal is tested by two treatments. And, cytotoxicity evolution of DEP degradation intermediates is detected. The relationship between molar ratio ([H2O2]/[DEP] or [TiO2]/[DEP]) and degradation kinetic constant (K) is also studied. And, the cytotoxicity tests of DEP and its degradation intermediates in UV/H2O2 and UV/TiO2 treatments are researched. The DEP removal efficiency of UV/H2O2 treatment is higher than UV/TiO2 treatment. The DEP degradation fitted a pseudo-first-order kinetic pattern under experimental conditions. The K linearly related with molar ratio in UV/H2O2 treatment while nature exponential relationship is observed in the case of UV/TiO2. However, K fitted corresponding trends better in H2O2 treatment than in TiO2 treatment. The Cl(-) is in favor of the DEP degradation in UV/H2O2 treatment; in contrast, it is disadvantageous to the DEP degradation in UV/TiO2 treatment. Other anions are all disadvantageous to the DEP degradation in two treatments. Fe(3+) promotes the degradation rates significantly. And, all other cations in question inhibit the degradation of DEP. HA hinders DEP degradation in two treatments. The intermediates of DEP degradation in UV/TiO2 treatment are less toxic to biological cell than that in UV/H2O2 treatment.

Authors+Show Affiliations

School of Environmental and Safety Engineering, Changzhou University, Changzhou, People's Republic of China.School of Environmental and Safety Engineering, Changzhou University, Changzhou, People's Republic of China. wlp527528@163.com.School of Pharmaceutical and Life Sciences, Changzhou University, Changzhou, People's Republic of China.School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China.School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China.College of Environmental Science and Engineering, Tongji University, Shanghai, People's Republic of China.School of Environmental and Safety Engineering, Changzhou University, Changzhou, People's Republic of China.School of Environmental and Safety Engineering, Changzhou University, Changzhou, People's Republic of China.

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26432268

Citation

Song, Chengjie, et al. "Comparative Study of Diethyl Phthalate Degradation By UV/H2O2 and UV/TiO2: Kinetics, Mechanism, and Effects of Operational Parameters." Environmental Science and Pollution Research International, vol. 23, no. 3, 2016, pp. 2640-50.
Song C, Wang L, Ren J, et al. Comparative study of diethyl phthalate degradation by UV/H2O2 and UV/TiO2: kinetics, mechanism, and effects of operational parameters. Environ Sci Pollut Res Int. 2016;23(3):2640-50.
Song, C., Wang, L., Ren, J., Lv, B., Sun, Z., Yan, J., Li, X., & Liu, J. (2016). Comparative study of diethyl phthalate degradation by UV/H2O2 and UV/TiO2: kinetics, mechanism, and effects of operational parameters. Environmental Science and Pollution Research International, 23(3), 2640-50. https://doi.org/10.1007/s11356-015-5481-8
Song C, et al. Comparative Study of Diethyl Phthalate Degradation By UV/H2O2 and UV/TiO2: Kinetics, Mechanism, and Effects of Operational Parameters. Environ Sci Pollut Res Int. 2016;23(3):2640-50. PubMed PMID: 26432268.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparative study of diethyl phthalate degradation by UV/H2O2 and UV/TiO2: kinetics, mechanism, and effects of operational parameters. AU - Song,Chengjie, AU - Wang,Liping, AU - Ren,Jie, AU - Lv,Bo, AU - Sun,Zhonghao, AU - Yan,Jing, AU - Li,Xinying, AU - Liu,Jingjing, Y1 - 2015/10/03/ PY - 2015/07/01/received PY - 2015/09/21/accepted PY - 2015/10/4/entrez PY - 2015/10/4/pubmed PY - 2016/9/17/medline KW - Advanced oxidation processes KW - Diethyl phthalate KW - Hydrogen peroxide KW - Kinetics KW - Molar ratio KW - Titanium dioxide SP - 2640 EP - 50 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 23 IS - 3 N2 - The photodegradation of diethyl phthalate (DEP) by UV/H2O2 and UV/TiO2 is studied. The DEP degradation kinetics and multiple crucial factors effecting the clearance of DEP are investigated, including initial DEP concentration ([DEP]0), initial pH values (pH0), UV light intensity, anions (Cl(-), NO(3-), SO4 (2-), HCO3 (-), and CO3 (2-)), cations (Mg(2+), Ca(2+), Mn(2+), and Fe(3+)), and humic acid (HA). Total organic carbon (TOC) removal is tested by two treatments. And, cytotoxicity evolution of DEP degradation intermediates is detected. The relationship between molar ratio ([H2O2]/[DEP] or [TiO2]/[DEP]) and degradation kinetic constant (K) is also studied. And, the cytotoxicity tests of DEP and its degradation intermediates in UV/H2O2 and UV/TiO2 treatments are researched. The DEP removal efficiency of UV/H2O2 treatment is higher than UV/TiO2 treatment. The DEP degradation fitted a pseudo-first-order kinetic pattern under experimental conditions. The K linearly related with molar ratio in UV/H2O2 treatment while nature exponential relationship is observed in the case of UV/TiO2. However, K fitted corresponding trends better in H2O2 treatment than in TiO2 treatment. The Cl(-) is in favor of the DEP degradation in UV/H2O2 treatment; in contrast, it is disadvantageous to the DEP degradation in UV/TiO2 treatment. Other anions are all disadvantageous to the DEP degradation in two treatments. Fe(3+) promotes the degradation rates significantly. And, all other cations in question inhibit the degradation of DEP. HA hinders DEP degradation in two treatments. The intermediates of DEP degradation in UV/TiO2 treatment are less toxic to biological cell than that in UV/H2O2 treatment. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/26432268/Comparative_study_of_diethyl_phthalate_degradation_by_UV/H2O2_and_UV/TiO2:_kinetics_mechanism_and_effects_of_operational_parameters_ DB - PRIME DP - Unbound Medicine ER -