PMID- 33775677
OWN - NLM
STAT- MEDLINE
DCOM- 20210630
LR  - 20221207
IS  - 1096-0953 (Electronic)
IS  - 0013-9351 (Linking)
VI  - 197
DP  - 2021 Jun
TI  - Solvent-mediated synthesis of BiOI with a tunable surface structure for effective 
      visible light active photocatalytic removal of Cr(VI) from wastewater.
PG  - 111080
LID - S0013-9351(21)00374-1 [pii]
LID - 10.1016/j.envres.2021.111080 [doi]
AB  - The present study investigated the effect of various solvents on the tunable 
      surface morphology and photocatalytic activity (PCA) of bismuth oxyiodide (BiOI), 
      which could be used for the reduction of Cr(VI) under visible light irradiation 
      (VLI). BiOI samples exhibiting different morphologies, i.e., two-dimensional 
      square-like nanosheet and three-dimensional hierarchical flower-like morphology, 
      were synthesized by a hydro/solvothermal process using different solvents, namely 
      H(2)O, MeOH, EtOH, and ethylene glycol (EG). The crystal structure, surface 
      morphology, surface area, light-absorption capability, and recombination rate of 
      the photogenerated charge carriers were examined by X-ray diffraction, scanning 
      electron microscopy, Brunauer-Emmett-Teller analysis, UV-vis diffuse reflectance 
      spectroscopy, photoluminescence, and transient photocurrent analyses, 
      respectively. The BiOI sample fabricated in EG showed excellent photocatalytic 
      efficiency (~99%) for the reduction of Cr(VI) after 90 min under VLI. The 
      enhanced PCA demonstrated that the high surface area and well-structured surface 
      characteristics of flower-like 3D BiOI microspheres played important roles in the 
      photoreduction process. Moreover, a plausible mechanism for the reduction of 
      Cr(VI) over the EG-BiOI photocatalyst was proposed. The results of the PCA 
      evaluation and recycle test revealed that 3D EG-BiOI microspheres could serve as 
      promising materials for the efficient removal of Cr(VI) from wastewater. 
      Additionally, EG-BiOI could be utilized in other environmental remediation 
      processes.
CI  - Copyright (c) 2021 Elsevier Inc. All rights reserved.
FAU - Arumugam, Malathi
AU  - Arumugam M
AD  - Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, 
      Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 
      52828, Republic of Korea.
FAU - Yu, Yiseul
AU  - Yu Y
AD  - Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, 
      Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 
      52828, Republic of Korea.
FAU - Jung, Hyeon Jin
AU  - Jung HJ
AD  - Nano Materials & Nano Technology Center, Electronic Convergence Division, Korea 
      Institute of Ceramic Engineering & Technology, Jinju, 52851, Republic of Korea.
FAU - Yeon, Sanghun
AU  - Yeon S
AD  - Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, 
      Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 
      52828, Republic of Korea.
FAU - Lee, Hyeyeon
AU  - Lee H
AD  - Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, 
      Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 
      52828, Republic of Korea.
FAU - Theerthagiri, Jayaraman
AU  - Theerthagiri J
AD  - Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, 
      Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 
      52828, Republic of Korea.
FAU - Lee, Seung Jun
AU  - Lee SJ
AD  - Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, 
      Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 
      52828, Republic of Korea. Electronic address: venus272@gnu.ac.kr.
FAU - Choi, Myong Yong
AU  - Choi MY
AD  - Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry, 
      Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 
      52828, Republic of Korea. Electronic address: mychoi@gnu.ac.kr.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20210326
PL  - Netherlands
TA  - Environ Res
JT  - Environmental research
JID - 0147621
RN  - 0 (Solvents)
RN  - 0 (Waste Water)
RN  - 0R0008Q3JB (Chromium)
RN  - 18540-29-9 (chromium hexavalent ion)
RN  - U015TT5I8H (Bismuth)
SB  - IM
MH  - *Bismuth
MH  - Catalysis
MH  - Chromium
MH  - Light
MH  - Solvents
MH  - *Wastewater
OTO - NOTNLM
OT  - BiOI
OT  - Cr(VI) removal
OT  - Photocatalytic reduction
OT  - Solvent effect
OT  - Visible light
EDAT- 2021/03/30 06:00
MHDA- 2021/07/01 06:00
CRDT- 2021/03/29 05:53
PHST- 2021/02/20 00:00 [received]
PHST- 2021/03/15 00:00 [revised]
PHST- 2021/03/19 00:00 [accepted]
PHST- 2021/03/30 06:00 [pubmed]
PHST- 2021/07/01 06:00 [medline]
PHST- 2021/03/29 05:53 [entrez]
AID - S0013-9351(21)00374-1 [pii]
AID - 10.1016/j.envres.2021.111080 [doi]
PST - ppublish
SO  - Environ Res. 2021 Jun;197:111080. doi: 10.1016/j.envres.2021.111080. Epub 2021 
      Mar 26.