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Fabrication of nanometer-sized high-silica SAPO-5 and its enhanced photocatalytic performance for methyl orange degradation
Qiu, Lingfang; Zhou, Zhiwei; Yu, Yaqian; Zhang, Hao; Qian, Yuhai; Yang, Yuyu; Duo, Shuwang
2019-03-01
Source PublicationRESEARCH ON CHEMICAL INTERMEDIATES
ISSN0922-6168
Volume45Issue:3Pages:1457-1473
AbstractHigher efficient degradation of methyl orange (MO) was demonstrated with nanometer-sized high-silica SAPO-5. By a hydrothermal process, synthesized high-silica SAPO-5 and low-silica SAPO-5 showed Si-to-Al ratios of 4.20 and 0.11, respectively. High-silica SAPO-5 showed much better MO degradation efficiency with a dosage of 70mg in MO solution with a concentration of 10mg/L under ultraviolet illumination. High-silica SAPO-5 also exhibited good producibility for preparation and stable photocatalytic activity even after the fifth recycling test. Optical characterizations of DRS, XPS, photocurrent density and time-resolved fluorescence were carried out for SAPO-5 samples. Finally, free radical and hole scavenging experiments were investigated for high-silica SAPO-5, and a MO photodegradation mechanism based on the charge transfer excited state of [Al2+-O-]* was proposed. This work highlights great prospects of high-silica SAPO-5 for organic pollutant removal with virtues of ideal efficiency and environmental friendliness.
KeywordSAPO-5 High-silica Nanometer-sized Photocatalysis
Indexed BySCI
Language英语
WOS IDWOS:000459004900035
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81322
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Qiu, Lingfang,Zhou, Zhiwei,Yu, Yaqian,et al. Fabrication of nanometer-sized high-silica SAPO-5 and its enhanced photocatalytic performance for methyl orange degradation[J]. RESEARCH ON CHEMICAL INTERMEDIATES,2019,45(3):1457-1473.
APA Qiu, Lingfang.,Zhou, Zhiwei.,Yu, Yaqian.,Zhang, Hao.,Qian, Yuhai.,...&Duo, Shuwang.(2019).Fabrication of nanometer-sized high-silica SAPO-5 and its enhanced photocatalytic performance for methyl orange degradation.RESEARCH ON CHEMICAL INTERMEDIATES,45(3),1457-1473.
MLA Qiu, Lingfang,et al."Fabrication of nanometer-sized high-silica SAPO-5 and its enhanced photocatalytic performance for methyl orange degradation".RESEARCH ON CHEMICAL INTERMEDIATES 45.3(2019):1457-1473.
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