TY  - JOUR
AV  - none
N1  - cited By 32
SP  - 305
TI  - Synergistic effects of pH and calcination temperature on enhancing photodegradation performance of m-BiVO4
PB  - Taiwan Institute of Chemical Engineers
SN  - 18761070
EP  - 315
N2  - Photocatalytic degradation of organic dyes is a promising alternative to current conventional pollution-free technologies. Herein, the visible-light-driven m-BiVO4 photocatalysts with enhanced photodegradation performance were successfully synthesized via solidā??liquid state reaction. The photodegradation performance of as-prepared m-BiVO4 photocatalysts via removal of methylene blue dye under visible light irradiation were evaluated by adjusting pH (1, 3, 6, and 10) and calcination temperature (400, 500, and 600 Ā°C). In addition, a mathematical representation for understanding the interaction between pH and calcination temperature for photodegradation of methylene blue using response surface methodology (RSM) was successfully generated. The m-BiVO4 photocatalysts prepared at pH 1 and then calcined at 500 Ā°C exhibited superior photodegradation performance with 98.5 rate of removal within 3 h. The XRD peaks confirmed that the as-prepared m-BiVO4 were in agreement with standard monoclinic scheelite structure. Moreover, the intensification of FTIR spectra of mBV500 revealed that coupling calcination treatment with pH helps to generate more active site traits, resulting in better photodegradation performance. The better crystallinity of mBV500 shown in FESEM micrographs and sharp deconvolution of XPS peaks signified the decent synergy between optimum pH and calcination temperature. The synergistic effect between optimum pH and calcination temperature also effectively averted the fast recombination rate of electron-hole pairs by minimizing the band gap energy as revealed in DRā??UVā??Vis measurements. Ā© 2017 Taiwan Institute of Chemical Engineers
ID  - scholars8089
KW  - Aromatic compounds; Calcination; Crystallinity; Degradation; Energy gap; Fourier transform infrared spectroscopy; Light; pH; Photocatalysts; Photodegradation; Tungstate minerals
KW  -  Bismuth vanadates; Calcination temperature; Mathematical representations; Methylene Blue; Photo catalytic degradation; Photodegradation of methylene blue; Response surface methodology; Visible-light irradiation
KW  -  pH effects
Y1  - 2017///
JF  - Journal of the Taiwan Institute of Chemical Engineers
A1  - Samsudin, M.F.R.
A1  - Sufian, S.
A1  - Bashiri, R.
A1  - Mohamed, N.M.
A1  - Ramli, R.M.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033232199&doi=10.1016%2fj.jtice.2017.09.045&partnerID=40&md5=c9548d9410a38497892016470b80d609
VL  - 81
ER  -