ZnWO4/竹炭复合材料的制备及其光催化性能研究
Preparation and photocatalytic property of ZnWO4/bamboo charcoal composites
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摘要: 以自制竹炭为载体、仲钨酸铵为钨源,采用微波辅助溶胶-凝胶法制备了ZnWO4/竹炭复合材料.用TG,SEM,BET等分析技术对其进行了表征,并就其对罗丹明B的光降解催化作用进行了研究.结果表明:在微波功率640 W,时间10 min,400℃条件下的空气中焙烧所制备的ZnWO4/竹炭复合材料,当竹炭含量为20%时,具有较好的紫外光催化活性.
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关键词:
- ZnWO4 /
- 竹炭 /
- 微波辅助溶胶-凝胶法 /
- 光催化性能
Abstract: ZnWO4/bamboo charcoal (ZW/BC) photocatalysts were synthesized by the microwave assisted sol-gel method with 5(NH4)2·12WO3·5H2O as the W source,and bamboo charcoal as the support.The structured features of these materials were analyzed by TG,while their morphologies were characterized by SEM and BET.High efficiency for the degradation of Rhodamine B (RhB) under both UV light was obtained for the ZW/BC photocatalysts.The results indicated that the composites with 20%(wt) bamboo charcoal sintered in air at 400℃ for 10 min in microwave power 640 W charactered had the better photocatalytic ability in the UV light.-
Key words:
- ZnWO4 /
- bamboo charcoal /
- microwave assisted sol-gel method /
- photocatalytic property
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