La-Ni-O基催化剂的制备及其在环境与能源中的应用

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由于能源的消耗和人类活动的加剧,能源危机和环境污染问题在过去几十年引起了广泛关注。随着工业的发展和人口的扩张,急需寻找一种合适的手段来处理工业和生活废水所排放的有毒污染物。氢气与化石燃料相比,是一种清洁、高热量的能源,被认为是未来能源的主要载体。在众多的催化体系中,光催化是解决上述问题且具有前景的方法,因为太阳能体系简单,是可再生能源,并且可以直接利用。作为最典型的光催化剂,TiO_2因为其毒性低、活性高、价格便宜、稳定性好等优点备受青睐,但是受其禁带宽度(≈3.2 eV)的限制仅吸收紫外光(占太阳
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