在室温条件下,以锌粉1 g、四氯化碳10 mL和纯净水2 mL 为比例,使用超声法制备出了 Zn5(OH)8 Cl2? H 2 O 纳米片.探究了超声环境下 Zn5(OH)8 Cl2? H 2 O 的生长机理,并对产物的形貌和结构进行了表征.研究了温度对 Zn5(OH)8 Cl2? H 2 O转化为 ZnO 的影响,发现产物在600℃下完全转化为六方结构纤锌矿 ZnO,且高温有助于规则 ZnO 六方棱柱晶体的形成.使用 Zn5(OH)8 Cl2? H 2 O 对初始浓度为20 mg/L 的甲基橙溶液进行光催化降解,结果表明,在15 min 时降解效率达到98．63％,30 min 完全降解.
The used zinc powder 1 g, CCl4 10 mL and pure water 2 mL with a ration to synthesize Zn5 (OH)8 Cl2 ?H 2 O nanosheets assisted with ultrasonic irradiation at room temperature.The study describes growth mechanism of Zn5 (OH)8 Cl2 ?H 2 O as well as the evolution into ZnO during calcinations.The morpholo-gy and the structure of the Zn5 (OH)8 Cl2 ?H 2 O were characterized by field emission scanning electron micros-copy (FESEM)and X-ray diffraction analysis (XRD).Its proved high temperature was benefit to the formation of regular ZnO crystals.During photodegradation of methyl orange(20 mg/L),it achieved 98.63% at 15 min by using Zn5 (OH)8 Cl2 ?H 2 O as photocatalyst,and the degradation efficiency reached 100% at 30 min.
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