Laser-induced convenient synthesis of porous Cu2O@CuO nanocomposites with excellent adsorption of methyl blue solution

We design a simple and versatile strategy to synthesize pure Cu2O@CuO.nanoporous materials with pores the size of 4~8 nm based on the laser irradiation of CuO.powders in distilled water. In the presence of 1.8 mg Cu2O@CuO nanocomposites, the.adsorption of a nearly 99.69% MB solution (80 mg/L, 3 mL) can be achieved after 1 min,.while 95.35% via 200 mg original CuO powders. The porous structures and the abundant.hydroxyl (-OH) groups formed on the surfaces enable the Cu2O@CuO nanocomposites to.have many more adsorption sites. Our results have opened up a novel green paradigm of.wielding laser light as a versatile tool for sculpting porous nanocomposites without any.residual reagents.

我们设计了一种简单且通用的策略，基于在蒸馏水中对氧化铜粉末进行激光照射，合成了孔径为4 - 8纳米的纯氧化亚铜@氧化铜纳米多孔材料。在存在1.8毫克氧化亚铜@氧化铜纳米复合材料的情况下，1分钟后可实现对近99.69%的亚甲基蓝溶液（80毫克/升，3毫升）的吸附，而200毫克原始氧化铜粉末只能吸附95.35%。多孔结构以及表面形成的丰富羟基（-OH）基团使氧化亚铜@氧化铜纳米复合材料具有更多的吸附位点。我们的研究结果开辟了一种新的绿色范例，即利用激光作为一种通用工具来制备多孔纳米复合材料，且无任何残留试剂。