Abstract
In this paper, TS-1 powder was prepared by utilizing pretreated titanium dioxide as titanium source. The structure and activity of the prepared catalysts were investigated by XRD, FT-IR, UV–vis and semicontinuous reaction of cyclohexanone ammoximation. The results showed that the prepared catalyst with pretreated titanium dioxide as a titanium source containing less Brönsted acidic sites than that of the standard sample using TBOT as titanium source. After the post-treatment by 0.5 M hydrochloric acid aqueous solution for removing the extra-framework Ti species, the obtained catalysts displayed almost the same catalytic activity under optimal condition as the titanium source of TBOT.
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