PMID- 28063298 OWN - NLM STAT- MEDLINE DCOM- 20170428 LR - 20181202 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 171 DP - 2017 Mar TI - A novel Z-scheme BiPO(4)-Bi(2)O(2)(OH)(NO(3)) heterojunction structured hybrid for synergistic photocatalysis. PG - 702-709 LID - S0045-6535(16)31834-3 [pii] LID - 10.1016/j.chemosphere.2016.12.102 [doi] AB - Photocatalysis has been gaining a growing popularity in water treatment, and their engineered applications inspire the development of effective photocatalyst materials. To develop photocatalyst that is effective for degradation of organic pollutants, we fabricate a novel direct solid Z-scheme BiPO(4)-Bi(2)O(2)(OH)(NO(3)) (BPO-BHN) heterojunction structured hybrid. The results demonstrate an enhanced photocatalytic activity of BPO-BHN to produce OH radicals, according to diffuse reflectance spectroscopy (DRS), electron spin-resonance resonance (ESR), photoelectrochemical measurements, and theoretical calculation results. The BPO-BHN is shown to greatly promote the degradation of 2,4-dichlorophenol (2,4-DCP) under ultraviolet light. On the basis of pseudo-first-order kinetics, the apparent degradation rate constant (k(app)) of 0.050 min(-1) obtained for BPO-BHN is approximately 3.33 and 12.5 times of that for individual BPO (k(app) = 0.015 min(-1)) and BHN (k(app) = 0.004 min(-1)), respectively. This suggests a virtually synergistic photocatalysis of BPO and BHN when they form a direct solid Z-scheme heterojunction structure, which is favorable for improving UV-light harvesting, hole/electron separation and oxidizing capability. In particular, as a novel non-linear optical (NLO) material, the BHN plays a significant role in the formation of Z-scheme structure for its unique ability of capturing photo-electrons from BPO by high-potential C(+) face in valence band. This study provides a proof-of-concept strategy to develop more effective photocatalysts for degradation of organic pollutants in water. CI - Copyright (c) 2016 Elsevier Ltd. All rights reserved. FAU - Liu, Guoshuai AU - Liu G AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China. FAU - You, Shijie AU - You S AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China. Electronic address: sjyou@hit.edu.cn. FAU - Huang, Hong AU - Huang H AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China. FAU - Ma, Ming AU - Ma M AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China. FAU - Ren, Nanqi AU - Ren N AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China. LA - eng PT - Journal Article DEP - 20161223 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Chlorophenols) RN - 0 (Nitrates) RN - 0 (Water Pollutants, Chemical) RN - R669TG1950 (2,4-dichlorophenol) RN - U015TT5I8H (Bismuth) RN - Z9P58L0522 (bismuth phosphate) SB - IM MH - Bismuth/*chemistry MH - Catalysis MH - *Chlorophenols/chemistry/radiation effects MH - Kinetics MH - Nitrates/*chemistry MH - Photochemical Processes MH - *Ultraviolet Rays MH - *Water Pollutants, Chemical/chemistry/radiation effects MH - Water Purification OTO - NOTNLM OT - Degradation OT - Direct solid Z-scheme heterojunction structure OT - Photocatalysis EDAT- 2017/01/08 06:00 MHDA- 2017/04/30 06:00 CRDT- 2017/01/08 06:00 PHST- 2016/08/23 00:00 [received] PHST- 2016/12/01 00:00 [revised] PHST- 2016/12/20 00:00 [accepted] PHST- 2017/01/08 06:00 [pubmed] PHST- 2017/04/30 06:00 [medline] PHST- 2017/01/08 06:00 [entrez] AID - S0045-6535(16)31834-3 [pii] AID - 10.1016/j.chemosphere.2016.12.102 [doi] PST - ppublish SO - Chemosphere. 2017 Mar;171:702-709. doi: 10.1016/j.chemosphere.2016.12.102. Epub 2016 Dec 23.