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Éó¸åÈËÊÇÕâôÎʵģº Figure 4. the measurement of the band gap should be reconsidered. The tangent line, in my opinion, should cross the tangent line which parallel to the X axis, rather than the X-axis.
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Éó¸åÈ˵ĵڶþ¸öÎÊÌâÊÇ£ºTherefore, the band gap of these photocatalysts should be at 3.02-3.17eV, corresponding to 390-410 nm. Strictly, they should not be viewed as "visible light responsive photocatalysts".
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