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المؤلفHezam A.
المؤلفNamratha K.
المؤلفPonnamma D.
المؤلفDrmosh Q.A.
المؤلفSaeed A.M.N.
المؤلفCheng C.
المؤلفByrappa K.
تاريخ الإتاحة2020-03-03T06:19:04Z
تاريخ النشر2018
اسم المنشورACS Omega
المصدرScopus
الرقم المعياري الدولي للكتاب24701343
معرّف المصادر الموحدhttp://dx.doi.org/10.1021/acsomega.8b01449
معرّف المصادر الموحدhttp://hdl.handle.net/10576/13125
الملخصLimited light absorption, inefficient electron-hole separation, and unsuitable positions of conduction band bottom and/or valence band top are three major critical issues associated with high-efficiency photocatalytic water treatment. An attempt has been carried out here to address these issues through the synthesis of direct Z-scheme Cs2O-Bi2O3-ZnO heterostructures via a facile, fast, and economic method: solution combustions synthesis. The photocatalytic performances are examined by the 4-chlorophenol degradation test under simulated sunlight irradiation. UV-vis diffuse reflectance spectroscopy analysis, electrochemical impedance test, and the observed transient photocurrent responses prove not only the significant role of Cs2O in extending light absorption to visible and near-infrared regions but also its involvement in charge carrier separation. Radical-trapping experiments verify the direct Z-scheme approach followed by the charge carriers in heterostructured Cs2O-Bi2O3-ZnO photocatalysts. The Z-scheme charge carrier pathway induced by the presence of Cs2O has emerged as the reason behind the efficient charge carrier separation and high photocatalytic activity.
راعي المشروعQatar University, Shenzhen Polytechnic, Southern University of Science and Technology, King Fahd University of Petroleum and Minerals, Excellent Young Talents Fund Program of Higher Education Institutions of Anhui Province, Ministry of Science and Technology of the People's Republic of China, National Natural Science Foundation of China
اللغةen
الناشرAmerican Chemical Society
الموضوعhigh-efficiency photocatalytic
water treatment
العنوانDirect Z-Scheme Cs2O-Bi2O3-ZnO Heterostructures as Efficient Sunlight-Driven Photocatalysts
النوعArticle
الصفحات12260 - 12269
رقم العدد9
رقم المجلد3
dc.accessType Abstract Only


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