VISIBLE LIGHT ACTIVE PHOTOCATALYST AND METHOD FOR PREPARING THE SAME

• Main Authors: KIM, HYO JOONG, KIM, HA NA, LEE, DONG IL
• Format: Patent
• Language: English; Korean
• Published: 30.07.2018
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

Provided is a visible light active photocatalyst including tungsten oxide particles in which copper particles is supported. Moreover, provided is a preparing method of the visible light active photocatalyst. The preparing method with low loss of a raw material comprises the steps of: preparing a tungsten oxide particle dispersion solution; adjusting pH of the tungsten oxide particle dispersion solution to 7 to 11; mixing a supported raw material containing a copper precursor with the tungsten oxide dispersion solution having the pH controlled; and supporting the copper particles on the tungsten oxide particles. 구리 입자가 담지된 산화텅스텐 입자를 포함하는 가시광 활성 광촉매 입자 제공한다. 또한, 산화텅스텐 입자 분산 용액을 제조하는 단계; 상기 산화텅스텐 입자 분산 용액의 pH를 7 내지 11로 조절하는 단계; pH가 조절된 상기 산화텅스텐 입자 분산 용액에 구리 전구체를 포함하는 담지 원료를 혼합하는 단계; 및 상기 산화텅스텐 입자에 구리 입자를 담지시키는 단계;를 포함하는 가시광 활성 광촉매 입자의 제조방법을 제공한다.