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Full spectrum driven SCR removal of NO over hierarchical CeVO4/attapulgite nanocomposite with high resistance to SO2 and H2O.
J Hazard Mater. 2020 03 15; 386:121977.JH

Abstract

Removal of hazardous NO at low temperature via photo-assisted selective catalytic reduction (photo-SCR) strategy is promising, however fully harvesting of solar energy and achieving high SO2/H2O tolerance still remain a challenge. Herein, the phosphoric acid modified natural attapulgite(P-ATP) was employed as a matrix to immobilize CeVO4 by microwave hydrothermal method. Results show that P-ATP provides abundant active sites facilitating the in situ grow of CeVO4 nanorods on its surface which hierarchically construct a dendritic-like photocatalyst. The near-infrared (NIR) light is upconverted to visible and UV light through CeVO4 which not only broaden the absorption range of solar light, but also build Z-scheme heterostructure with P-ATP enhancing the redox potential of charge carriers. The CeVO4/P-ATP nanocomposite can reach as high as 92 % for NO conversion under full-spectrum solar irradiation, while retaining nearly 60 % conversion under NIR light. Moreover, the catalyst exhibits outstanding tolerance with SO2 and H2O due to the presence of Ce species which can prevent NH3 from being sulfated, while ATP prevent catalyst from being corroded by H2O. This work may open up a new window for full-spectrum driven SCR of NO based on cost-effective mineral catalyst.

Authors+Show Affiliations

Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, PR China; Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA; Key Laboratory of Metallurgical Emission Reduction and Resources Recycling (Anhui University of Technology), Ministry of Education, 243002 Maanshan, PR China. Electronic address: xiazhang@cczu.edu.cn.Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, PR China.Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, PR China.Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, PR China.Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, PR China.Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, PR China.Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA. Electronic address: cni@udel.edu.

Pub Type(s)

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

Language

eng

PubMed ID

31911381

Citation

Li, Xiazhang, et al. "Full Spectrum Driven SCR Removal of NO Over Hierarchical CeVO4/attapulgite Nanocomposite With High Resistance to SO2 and H2O." Journal of Hazardous Materials, vol. 386, 2020, p. 121977.
Li X, Wang Z, Shi H, et al. Full spectrum driven SCR removal of NO over hierarchical CeVO4/attapulgite nanocomposite with high resistance to SO2 and H2O. J Hazard Mater. 2020;386:121977.
Li, X., Wang, Z., Shi, H., Dai, D., Zuo, S., Yao, C., & Ni, C. (2020). Full spectrum driven SCR removal of NO over hierarchical CeVO4/attapulgite nanocomposite with high resistance to SO2 and H2O. Journal of Hazardous Materials, 386, 121977. https://doi.org/10.1016/j.jhazmat.2019.121977
Li X, et al. Full Spectrum Driven SCR Removal of NO Over Hierarchical CeVO4/attapulgite Nanocomposite With High Resistance to SO2 and H2O. J Hazard Mater. 2020 03 15;386:121977. PubMed PMID: 31911381.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Full spectrum driven SCR removal of NO over hierarchical CeVO4/attapulgite nanocomposite with high resistance to SO2 and H2O. AU - Li,Xiazhang, AU - Wang,Zhendong, AU - Shi,Haiyang, AU - Dai,Da, AU - Zuo,Shixiang, AU - Yao,Chao, AU - Ni,Chaoying, Y1 - 2019/12/26/ PY - 2019/09/11/received PY - 2019/12/17/revised PY - 2019/12/24/accepted PY - 2020/1/9/pubmed PY - 2020/1/9/medline PY - 2020/1/9/entrez KW - Attapulgite KW - CeVO(4) KW - NO removal KW - Photo-SCR KW - Upconversion SP - 121977 EP - 121977 JF - Journal of hazardous materials JO - J. Hazard. Mater. VL - 386 N2 - Removal of hazardous NO at low temperature via photo-assisted selective catalytic reduction (photo-SCR) strategy is promising, however fully harvesting of solar energy and achieving high SO2/H2O tolerance still remain a challenge. Herein, the phosphoric acid modified natural attapulgite(P-ATP) was employed as a matrix to immobilize CeVO4 by microwave hydrothermal method. Results show that P-ATP provides abundant active sites facilitating the in situ grow of CeVO4 nanorods on its surface which hierarchically construct a dendritic-like photocatalyst. The near-infrared (NIR) light is upconverted to visible and UV light through CeVO4 which not only broaden the absorption range of solar light, but also build Z-scheme heterostructure with P-ATP enhancing the redox potential of charge carriers. The CeVO4/P-ATP nanocomposite can reach as high as 92 % for NO conversion under full-spectrum solar irradiation, while retaining nearly 60 % conversion under NIR light. Moreover, the catalyst exhibits outstanding tolerance with SO2 and H2O due to the presence of Ce species which can prevent NH3 from being sulfated, while ATP prevent catalyst from being corroded by H2O. This work may open up a new window for full-spectrum driven SCR of NO based on cost-effective mineral catalyst. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/31911381/Full_spectrum_driven_SCR_removal_of_NO_over_hierarchical_CeVO4/attapulgite_nanocomposite_with_high_resistance_to_SO2_and_H2O L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(19)31931-4 DB - PRIME DP - Unbound Medicine ER -
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