photochemical

/,foutou'kemikəl/

Thân thiện

A scientist studies a photochemical reaction in a laboratory.

Definition

1. Adjective: Of, relating to, or caused by the chemical action of light.

Usage

• General Use: Describes chemical reactions, processes, or properties initiated or influenced by the absorption of light energy.
• Scientific Context: Primarily used in chemistry, physics, environmental science, and materials science to discuss phenomena like photosynthesis, photodegradation, or photochemical smog.

Examples

• Adjective:
  • The photochemical reaction in the leaves converts sunlight into energy.
  • Photochemical smog is a major air pollution problem in sunny cities.
  • Researchers are studying the photochemical properties of the new material.

Advanced Usage

• "Photochemical process": A chemical process initiated by the absorption of photons (light particles).
  • The fading of dyes in sunlight is a photochemical process.
• "Photochemical efficiency": A measure of how effectively light energy is used to drive a chemical reaction.
  • Improving the photochemical efficiency of solar cells is a key research goal.

Variants and Related Words

• Photochemistry (n): The branch of chemistry concerned with the chemical effects of light.
  • She specializes in photochemistry.
• Photochemically (adv): In a photochemical manner; by means of photochemistry.
  • The compound degrades photochemically when exposed to UV light.

Synonyms

• Light-induced: Caused or initiated by light.
• Photoactivated: Activated or made reactive by light.

Related Phrases

• Photochemical oxidation: An oxidation reaction driven by light.
  • Photochemical oxidation contributes to the formation of ground-level ozone.
• Photochemical etching: A manufacturing technique that uses light and chemicals to shape materials.
  • The circuit board was created using photochemical etching.

Học thuật

Adjective

1. of or relating to or produced by the effects of light on chemical systems