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Synergistic effect of TiO2-CuWO4 on the photocatalytic degradation of atrazine.
Environ Sci Pollut Res Int. 2019 Apr; 26(12):12359-12367.ES

Abstract

In this work, CuWO4 is prepared and its effect of improving photocatalytic degradation of atrazine by TiO2 as well as the synergetic mechanism is studied. Results show that the addition of CuWO4 (50 mg/L) into the reaction system can significantly enhance the efficiency of atrazine degradation, resulting in an increased degradation efficiency of 92.1% after 270 min, which is 1.94 times higher than that of the single TiO2. As the sintering temperate of CuWO4 was increased, the degradation efficiency of atrazine increased initially and then deceased after reaching a maximum at 500 °C. The origin of the synergistic effect of TiO2-CuWO4 is attributed to the introduction of solid CuWO4. The photochemical test results indicate that the photogenerated electrons transfer from irradiated TiO2 to CuWO4, which is beneficial to the O2 reduction and H2O2 formation in aqueous solution thus promoting the photocatalytic activity of TiO2. These observations unveil the importance of improving photocatalytic activity of TiO2 with Cu-bearing semiconductors.

Authors+Show Affiliations

School of Metallurgy and Environment, Central South University, Changsha, 410083, China.School of Metallurgy and Environment, Central South University, Changsha, 410083, China.Shenzhen Key Laboratory of Industrial Water Conservation & Municipal Wastewater Resources Technology, Shenzhen Polytechnic, Shenzen, 518055, China. tangjj7384@sina.com.School of Metallurgy and Environment, Central South University, Changsha, 410083, China.School of Metallurgy and Environment, Central South University, Changsha, 410083, China.Shenzhen Key Laboratory of Industrial Water Conservation & Municipal Wastewater Resources Technology, Shenzhen Polytechnic, Shenzen, 518055, China.Shenzhen Key Laboratory of Industrial Water Conservation & Municipal Wastewater Resources Technology, Shenzhen Polytechnic, Shenzen, 518055, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30847813

Citation

He, Dewen, et al. "Synergistic Effect of TiO2-CuWO4 On the Photocatalytic Degradation of Atrazine." Environmental Science and Pollution Research International, vol. 26, no. 12, 2019, pp. 12359-12367.
He D, Yang Y, Tang J, et al. Synergistic effect of TiO2-CuWO4 on the photocatalytic degradation of atrazine. Environ Sci Pollut Res Int. 2019;26(12):12359-12367.
He, D., Yang, Y., Tang, J., Zhou, K., Chen, W., Chen, Y., & Dong, Z. (2019). Synergistic effect of TiO2-CuWO4 on the photocatalytic degradation of atrazine. Environmental Science and Pollution Research International, 26(12), 12359-12367. https://doi.org/10.1007/s11356-019-04686-1
He D, et al. Synergistic Effect of TiO2-CuWO4 On the Photocatalytic Degradation of Atrazine. Environ Sci Pollut Res Int. 2019;26(12):12359-12367. PubMed PMID: 30847813.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Synergistic effect of TiO2-CuWO4 on the photocatalytic degradation of atrazine. AU - He,Dewen, AU - Yang,Yang, AU - Tang,Jianjun, AU - Zhou,Kanggen, AU - Chen,Wei, AU - Chen,Yiqing, AU - Dong,Zijun, Y1 - 2019/03/07/ PY - 2018/12/11/received PY - 2019/02/22/accepted PY - 2019/3/9/pubmed PY - 2019/6/7/medline PY - 2019/3/9/entrez KW - Atrazine KW - CuWO4 KW - Photocatalysis KW - Synergistic effect SP - 12359 EP - 12367 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 26 IS - 12 N2 - In this work, CuWO4 is prepared and its effect of improving photocatalytic degradation of atrazine by TiO2 as well as the synergetic mechanism is studied. Results show that the addition of CuWO4 (50 mg/L) into the reaction system can significantly enhance the efficiency of atrazine degradation, resulting in an increased degradation efficiency of 92.1% after 270 min, which is 1.94 times higher than that of the single TiO2. As the sintering temperate of CuWO4 was increased, the degradation efficiency of atrazine increased initially and then deceased after reaching a maximum at 500 °C. The origin of the synergistic effect of TiO2-CuWO4 is attributed to the introduction of solid CuWO4. The photochemical test results indicate that the photogenerated electrons transfer from irradiated TiO2 to CuWO4, which is beneficial to the O2 reduction and H2O2 formation in aqueous solution thus promoting the photocatalytic activity of TiO2. These observations unveil the importance of improving photocatalytic activity of TiO2 with Cu-bearing semiconductors. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/30847813/Synergistic_effect_of_TiO2_CuWO4_on_the_photocatalytic_degradation_of_atrazine_ L2 - https://dx.doi.org/10.1007/s11356-019-04686-1 DB - PRIME DP - Unbound Medicine ER -