Icon is not displaying in Footer of the Master page

Hi

I am trying to add filter icon in the footer on master page but it is not displaying.

Tried many possible ways but still facing the same problem, can anybody help me to resolve the issue.

<footer>

<Bar>

<contentRight>

<Select id="groupSelect" change="handleGroup" icon="sap-icon://group-2" type="IconOnly" selectedKey="None" autoAdjustWidth="true" > <core:Item key="None" text="Rejected"/> <core:Item key="GrossAmount" text="Approved"/> <core:Item key="LifecycleStatus" text="Pending"/> </Select>

</contentRight>

</Bar>

</footer>

Thanks,

Jyoti