If you're looking for dust protection you're looking at something some elaborate than just shelves.
But if it's just shelves you seek, there are a tone of different brackets available that can attract to a wall stud or by using dry wall anchors. Floating shelves have a very sophisticated, polished look IMO. As for the shelf itself you can use wood, glass or plastic. With wood you could stain it to your liking. Maybe put a trim border around it. Also the cheapest option.
Lots and lots of options with shelving.