Walker, a five-time Irish champion, claimed the first frame 6-3, the second 6-4 and the third 7-5 to post an impressive 19-12 victory.
He'll now be seeking to upgrade to at least silver from tomorrow's last-four meeting with England's Oliver Reece Simpson.
Carter trumps Joyce
SNOOKER: Ali Carter saw off Judd Trump's conqueror Mark Joyce in a convincing performance to become the first man through to the quarter-finals of the williamhill.com UK Championship.
The two-time World Championship runner-up was a 6-2 winner against Walsall man Joyce, the world number 50 who caused a Sunday evening sensation by coming from 5-2 behind to sink title favourite Trump.
Carter surged to a 4-0 interval lead, helped by breaks of 46, 58 and 73, and despite Joyce narrowing his arrears to 4-2 there was no full-scale comeback this time.
Joining Carter in the last eight was Matthew Stevens, the Welshman a 6-4 winner in a gruelling match against Hong Kong's Marco Fu.
McQuaid riding on
CYCLING: International Cycling Union president Pat McQuaid has vowed to continue to improve the sport, despite continued calls for his resignation.
A day after a meeting of pressure group Change Cycling Now called for a change of leadership and saw three-time Tour de France winner Greg LeMond offer his services as an interim president of the UCI, McQuaid launched the first phase of a stakeholder consultation.
All of those involved in the sport, from riders to industry representatives and anti-doping organisations, have until next Monday to respond to a letter from the UCI.
McQuaid said: "We will work together to tackle issues of concern and build a bright future for cycling."
NBA: Philadelphia 88 Minnesota 105, Washington 105 Miami 101, Brooklyn 111 Oklahoma City 117, Chicago 76 Indiana 80, Memphis 108 Phoenix 98 (OT), Houston 107 LA Lakers 105.