研究背景与光催化简介( Background& Introduction 太阳能—取之不尽、用之不竭的清洁能源 Solar energy 每年到达地球表面的太阳能约相当于130万亿吨煤,1小时太阳辐 射能够全球使用1年。 The total solar energy absorbed by Yearly Solar fluxes Human Energy Consumption Earth's atmosphere, oceans and Solar 138500018 land masses is approximatelyWind 2250Ej9 3, 850,000 EJ per year. In 2002, this Biomass potential 100-300E10 was more energy in one hour than Primary energy use(2010) 539 EJ1 the world used in one year Electricity(2010) 66.5E12 1EJ=1018J一、研究背景与光催化简介 高性能复合环境净化材料及其应用的基础研究 （Background & Introduction） Solar Energy 太阳能——取之不尽、用之不竭的清洁能源 The total solar energy absorbed by Earth's atmosphere, oceans and land masses is approximately 3,850,000 EJ per year. In 2002, this was more energy in one hour than the world used in one year. 每年到达地球表面的太阳能约相当于130万亿吨煤, 1小时太阳辐 射能够全球使用1年。 1EJ = 1018J