In this work, a facile method was adopted to prepare TiO2-WO3 loaded onto wood surface by two-step hydrothermal method. The as-prepared composite material can be used as photocatalyst under UV irradiation for the photodegradation of formaldehyde. Related tests showed that nano-architectonic materials with spherical particles substratewere mainly caused self-photodegradation nanostructured firml...