玫瑰花状MoS_(2)对丁基黄原酸钾的吸附-光催化协同去除性能研究

Adsorption-photocatalytic synergistic removal performance of roseshaped MoS_(2) for potassium butyl xanthate

利用水热法合成玫瑰花状MoS_(2),研究其对丁基黄原酸钾的吸附-光催化协同去除性能。结果表明,成功制备了具有光催化性能与吸附性能的玫瑰花状MoS_(2);在pH=7、MoS_(2)用量为25 mg、吸附时间为30 min条件下,MoS_(2)对丁基黄原酸钾的最大吸附容量达110.93 mg·g^(-1);在300 W氙灯下照射30 min时,MoS_(2)对丁基黄原酸钾的降解效率为81.99%;而通过光催化降解-吸附的协同作用,在40 min时丁基黄原酸钾去除率达99.89%;经过5次循环后,MoS_(2)对丁基黄原酸钾的协同去除率仍大于95%。此研究为MoS_(2)在含黄药废水处理方面开辟一种新方法。

The rose shaped MoS_(2) was synthesized by hydrothermal method and its adsorption photocatalytic synergistic treatment performance on potassium butyl xanthate was investigated.The results showed that rose shaped MoS_(2) with photocatalytic and adsorption properties was successfully prepared.When pH=7,the amount of MoS_(2) was 25 mg,and the adsorption time was 30 minutes,the maximum adsorption capacity of MoS_(2) for potassium butyl xanthate can reach 110.93 mg·g^(-1).Under 300 W xenon lamp irradiation for 30 minutes,the degradation efficiency of potassium butyl xanthate on MoS_(2) was 81.99%.Through the synergistic effect of photocatalytic degradation-adsorption,potassium butyl xanthate can be almost completely removed within 40 minutes(degradation efficiency of 99.89%).After 5 cycles,the synergistic removal efficiency of potassium butyl xanthate by MoS_(2) can still reach over 95%.This study opens up a new method for MoS_(2) application in the treatment of xanthate containing wastewater.