No, you cannot. The Antminer s9 only mines coins with the SHA-256 hashing algorithm (like Bitcoin).
Ethereum utilizes Ethash as their mining algorithm.
There may be some sort of workaround to force the s9 to mine other hashing algos but it would be an incredible waste of potential for the device even if possible.
ETH is much more GPU friendly but is still difficult to compete. Sticking to the designated mining script will maximize profitability on any antminer.