A TiO2/biochar composite catalyst was prepared for photocatalytic pretreatment of corn straw, using scanning electron microscopy (SEM), Fourier transform infrared spectrometry (FT-IR), X-ray diffraction (XRD) and X-ray photoecectron spectroscopy (XPS) to characterize the catalyst. The effects of the photocatalytic conditions on dark fermentative hydrogen production from pretreated straw were investigated. Response surface optimization test results showed that the optimal catalytic conditions were biochar doping ratio of 10%, catalyst concentration of 1.3 g/L and catalytic pH 6, the maximum cumulative hydrogen production of straw reached 52.9 mL/g, which was 16.6% higher than that of the control. SEM, FT-IR, and XRD analysis showed that the photocatalysis could damage the structure of straw, which was conducive to the subsequent fermentation hydrogen production.
ZHANG Jingnan
,
QIAN Sitong
,
CHANG Hanghang
,
GAO Xinrui
,
MA Haokun
,
XU Qingping
,
ZHANG Zhiping
,
SONG Lili
,
YANG Xu
,
WEI Tao
. Effect of photocatalytic pretreatment on dark fermentative hydrogen production from straw[J]. Food and Fermentation Industries, 2023
, 49(15)
: 100
-106
.
DOI: 10.13995/j.cnki.11-1802/ts.035480
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