PMID- 32763611 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20201006 LR - 20201006 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 746 DP - 2020 Dec 1 TI - Synthesis of TiO(2) modified self-assembled honeycomb ZnO/SnO(2) nanocomposites for exceptional photocatalytic degradation of 2,4-dichlorophenol and bisphenol A. PG - 141291 LID - S0048-9697(20)34820-8 [pii] LID - 10.1016/j.scitotenv.2020.141291 [doi] AB - In this study, we have successfully synthesized honeycomb-like self-assembled structure of TiO(2) modified ZnO/SnO(2) nanostructure via co-precipitation method with exceptional high degradation activities for 2,4-dichlorophenol (2,4-DCP) and bisphenol A (BPA) pollutants. The as-prepared samples were calcined in tube furnace at high elevated temperature (700, 800 and 900 degrees C) for 1 h. Among the TiO(2) modified samples, ZST10-700 showed higher charge separation as demonstrated from surface photovoltage spectroscopy, photoluminance and electrochemical curve. Surface morphology, crystallinity, optical property and different functional groups in the samples were determined with SEM, EDX, XRD, UV-Vis DRS and FTIR, respectively. Interestingly, 72% and 58% photocatalytic degradation efficiencies were achieved with optimized ZST10-700 for 2,4-DCP and BPA, respectively. In comparison, the pure ZS-700 only showed 36% and 29% photocatalytic degradation efficiencies, respectively. The improved photocatalytic degradation efficiencies of the optimized ZST10-700 are mainly due to improved charge separation and prolonged charge lifetime. It was further verified that by increasing calcination temperature, the photocatalytic activity decreased, and this is attributed to the formation of photo-inactive phases like Zn(2)SnO(4) and ZnTiO(3). We believe that this work will provide an effective strategy to construct ternary heterojunction for the elimination of pollutants. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Ali, Wajid AU - Ali W AD - Key Laboratory of Functional Inorganic Materials Chemistry, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China; Department of Chemistry, Islamia College University Peshawar, Khyber Pakhtunkhwa, Pakistan. Electronic address: wajidalichemist@gmail.com. FAU - Ullah, Hameed AU - Ullah H AD - Department of Chemistry, Islamia College University Peshawar, Khyber Pakhtunkhwa, Pakistan. Electronic address: hameedwazir@yahoo.co.uk. FAU - Zada, Amir AU - Zada A AD - Department of Chemistry, Abdul Wali Khan University, Mardan 23200, Pakistan. FAU - Muhammad, Wisal AU - Muhammad W AD - State Key Laboratory of Surface Physics, Physics Departments, Fudan University, Shanghai 200433, China. FAU - Ali, Sharafat AU - Ali S AD - Key Laboratory of Functional Inorganic Materials Chemistry, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China. FAU - Shaheen, Shabana AU - Shaheen S AD - Key Laboratory of Functional Inorganic Materials Chemistry, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China. FAU - Alamgir, Muhammad Khalid AU - Alamgir MK AD - National Institute of Vacuum Science and Technology, NCP Complex, Islamabad, Pakistan. FAU - Ansar, Muhammad Zaka AU - Ansar MZ AD - National Institute of Vacuum Science and Technology, NCP Complex, Islamabad, Pakistan. FAU - Khan, Zaheen Ullah AU - Khan ZU AD - State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China. FAU - Bilal, Hazrat AU - Bilal H AD - State Key Laboratory for Chemistry of Medicinal Resources, Guangxi Normal University, Guangxi 541004, China. FAU - Yap, Pow-Seng AU - Yap PS AD - Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China. Electronic address: PowSeng.Yap@xjtlu.edu.cn. LA - eng PT - Journal Article DEP - 20200727 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 SB - IM OTO - NOTNLM OT - Calcination OT - Honeycomb structure OT - Improved charge separation OT - Ternary heterojunction OT - TiO(2) modification COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/08/09 06:00 MHDA- 2020/08/09 06:01 CRDT- 2020/08/09 06:00 PHST- 2020/06/03 00:00 [received] PHST- 2020/07/07 00:00 [revised] PHST- 2020/07/25 00:00 [accepted] PHST- 2020/08/09 06:00 [pubmed] PHST- 2020/08/09 06:01 [medline] PHST- 2020/08/09 06:00 [entrez] AID - S0048-9697(20)34820-8 [pii] AID - 10.1016/j.scitotenv.2020.141291 [doi] PST - ppublish SO - Sci Total Environ. 2020 Dec 1;746:141291. doi: 10.1016/j.scitotenv.2020.141291. Epub 2020 Jul 27.