锰改性含钛高炉渣光催化剂降解废水中的Cr6+

金属矿山 ›› 2017, Vol. 46 ›› Issue (05): 181-184.

锰改性含钛高炉渣光催化剂降解废水中的Cr⁶⁺

张士秋¹，王维清^1,2

1.西南科技大学环境与资源学院，四川绵阳 621010；2.固体废物处理与资源化教育部重点实验室，四川绵阳 621010

出版日期:2017-05-15 发布日期:2017-10-18
基金资助:
矿物加工科学与技术国家重点实验室开放基金专项（编号：BGRIMM-KJSKL-2015-07），西南科技大学研究生创新基金项目（编号：16ycx042），固体废物处理与资源化教育部重点实验室开放基金项目（编号：13zxsk06）。

Manganese Modified Ti-bearing Blast Furnace Slag Type Photocatalyst Degrade Cr6+ in Waste Water

Zhang Shiqiu¹，Wang Weiqing^1,2

1.School of Environment and Resource，Southwest University of Science and Technology，Mianyang 621010，China；2.Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education,Mianyang 621010，China

Online:2017-05-15 Published:2017-10-18

摘要/Abstract

摘要： 为了实现以废治废、变废为宝的目标，以攀钢含钛高炉渣为原料、MnO₂为改性剂，采用高温固相法制备了改性的TiO₂光催化剂。通过XRD、UV-Vis吸收光谱等对其进行表征，研究了模拟废液pH、催化剂用量和光照时间等因素对改性的TiO₂光催化剂降解Cr⁶⁺的影响。结果表明：800 ℃下煅烧2 h所得的含钛高炉渣光催化材料中出现的锐钛矿型TiO₂对紫外区域有较好的光响应。在溶液pH=1.62，光催化剂用量为0.40 g/L，光照时间为60 min情况下，Cr6+浓度为10 mg/L的模拟废水中Cr⁶⁺的降解率为89.17%。

关键词: 含钛高炉渣, 锰改性光催化剂, Cr⁶⁺降解率

Abstract: In order to realize the targets of using waste into treatment of waste and turning the waste into treasure,using Ti-bearing blast furnace slag as material and MnO₂ as the modifier through high temperature solid phase method produced TiO₂ photocatalyst. Through XRD，UV-Vis diffuse analyzed its characterization，Influence of factors such as pH of the simulated waste water，addition amount of photocatalyst，and illumination time on degradation rate of Cr⁶⁺ by TiO₂ photocatalyst. Results indicated that anatase phase TiO₂ produced through calcination at 800 ℃ for 2 h of Ti-bearing blast furnace slag photocatalyst has better photo response effect to ultraviolet region. The degradation rate of Cr⁶⁺ reached to 89.17%，when simulated effluent pH was 1.62，photocatalyst additive amount was 0.40 g/L，illumination time was 60 min.

Key words: Ti-bearing blast furnace slag, Manganese modified photocatalysis, Cr6+degradation rate

张士秋, 王维清. 锰改性含钛高炉渣光催化剂降解废水中的Cr⁶⁺[J]. 金属矿山, 2017, 46(05): 181-184.

ZHANG Shi-Qiu, WANG Wei-Qing. Manganese Modified Ti-bearing Blast Furnace Slag Type Photocatalyst Degrade Cr6+ in Waste Water[J]. Metal Mine, 2017, 46(05): 181-184.

[1]	刘伟, 陈铁军, 王林俊, 毕晟, 万军营, 张大伟. 含钛高炉渣高温熔融改性制备微晶铸石试验研究[J]. 金属矿山, 2020, 49(11): 113-117.
[2]	景建发, 郭宇峰, 郑富强, 谢小林, 杨凌志, 陈凤. 含钛高炉渣综合利用的研究进展[J]. 金属矿山, 2018, 47(04): 185-191.
[3]	薛鑫, 李万博, 王建伟, 严生. 含钛高炉渣钛提取中酸解率影响因素的研究[J]. 金属矿山, 2009, 39(03): 178-181.

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锰改性含钛高炉渣光催化剂降解废水中的Cr⁶⁺

Manganese Modified Ti-bearing Blast Furnace Slag Type Photocatalyst Degrade Cr6+ in Waste Water

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