TY  - JOUR
A1  - Iqbal, F.
A1  - Mumtaz, A.
A1  - Shahabuddin, S.
A1  - Abd Mutalib, M.I.
A1  - Shaharun, M.S.
A1  - Nguyen, T.D.
A1  - Khan, M.R.
A1  - Abdullah, B.
JF  - Journal of Chemical Technology and Biotechnology
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082341707&doi=10.1002%2fjctb.6408&partnerID=40&md5=8dfe55a2d04c0f7669a17ccd4586e02a
VL  - 95
Y1  - 2020///
IS  - 8
N2  - BACKGROUND: The development of visible light photocatalysts for CO2 reduction into methanol is a challenge, as most of the reported photocatalysts can only work in a UV light environment. Slow kinetics and poor selectivity of CO2 towards methanol are currently two significant drawbacks limiting the practical application of CO2 reduction into methanol. RESULTS: A ZnFe2O4/TiO2 heterojunction with a ratio of unity was found to lead to the highest methanol yield of 693.31 μmol (g cat)â??1 under a light intensity of 100 mW cmâ??2. This photocatalyst also possessed the highest BET surface area of 6.5211 m2 gâ??1 and better morphological structure, as compared with other ratios (1:2, 2:1 w/w). Interestingly, a loading of 1 g Lâ??1 of ZnFe2O4/TiO2 (1:1) heterojunction photocatalyst in the pre-annealing treatment of ZnFe2O4 at 900 °C and post-annealing treatment of ZnFe2O4/TiO2 (1:1) composite at 500 °C revealed that there was an enhancement in the interfacial interaction, and subsequently an efficient photoreduction of CO2 into methanol. CONCLUSIONS: This study demonstrates facile fabrication of pâ??n heterostructured phototcatalysts for reduction of CO2 with marked improvement in methanol yield under visible light irradiation. It provides a viable route for exploring the effects of composition, hydrothermal treatment, and pre-/post-annealing treatment of hybrid semiconductor composites used to scale up photocatalytic CO2 conversion in solar fuel-based devices. © 2020 Society of Chemical Industry
ID  - scholars12887
KW  - Annealing; Carbon dioxide; Heterojunctions; Iron compounds; Irradiation; Light; Methanol; Photocatalytic activity; Titanium compounds
KW  -  Hydrothermal treatments; Interfacial interaction; Morphological structures; Photocatalytic reduction; Post annealing treatment; Semiconductor composite; Visible-light irradiation; Visible-light photocatalysts
KW  -  Zinc compounds
KW  -  carbon dioxide; methanol; nitrate; titanium dioxide; zinc
KW  -  Article; calcination temperature; chemical composition; chemical structure; comparative study; crystal structure; electron diffraction; energy dispersive X ray spectroscopy; high resolution transmission electron microscopy; light intensity; molecular stability; oxidation; oxidation reduction reaction; photocatalysis; reduction (chemistry); surface area; synthesis; ultraviolet radiation
EP  - 2221
PB  - John Wiley and Sons Ltd
SN  - 02682575
N1  - cited By 27
TI  - Photocatalytic reduction of CO2 to methanol over ZnFe2O4/TiO2 (pâ??n) heterojunctions under visible light irradiation
SP  - 2208
AV  - none
ER  -